With Terminal Patents (Class 361/540)
  • Publication number: 20090237866
    Abstract: A capacitor element having an upper surface, a lower surface, a first end surface and a second end surface is coated with a cathode layer, except for the first end surface. Anode lead extends out from the first end surface. An anode terminal has a first portion located close to and beneath the lower surface of the capacitor element and has a second portion connected to the anode lead via an arcuate connector. A cathode terminal is disposed under the lower surface of the capacitor element, being spaced from the first portion of the anode terminal. A packaging resin covers the capacitor element, the anode terminal and the cathode terminal. A depression is formed in the anode terminal, which extends from a portion of the anode terminal facing the lower surface of the capacitor element to the inner edge of the anode terminal facing the cathode terminal.
    Type: Application
    Filed: March 3, 2009
    Publication date: September 24, 2009
    Applicant: Matsuo Electric Company,Limited
    Inventors: Kazuto Okada, Hiroaki Kotera, Yasunori Kinugawa, Kiyoharu Tsunetoshi, Masatoshi Niki
  • Patent number: 7570480
    Abstract: A tantalum capacitor including: a capacitor body containing a tantalum powder and having a mounting surface; a cathode lead frame having the capacitor body mounted thereon; a tantalum wire having an insertion portion located inside the capacitor body and a non-insertion portion located outside the capacitor body; an anode lead frame connected to the non-insertion portion of the tantalum wire; and a resin mold surrounding the capacitor body and the tantalum wire, wherein the insertion portion of the tantalum wire has at least one bending.
    Type: Grant
    Filed: September 27, 2007
    Date of Patent: August 4, 2009
    Assignee: Samsung Electro-Mechanics Co., Ltd.
    Inventors: Jae Kwang Kim, Kwan Hyeong Kim
  • Patent number: 7570479
    Abstract: An electrolytic capacitor has at least one capacitor element and an insulating housing. Each capacitor element has a body and at least two leads. The leads connect to the body. The insulating housing has a base. The base has a top with at least one opening, a bottom, at least two holes and at least one chamber. The opening is sealed after the at least one capacitor element is mounted in the base. The holes are defined through the bottom and allow the leads to extend out and to be fastened with sealant. The chamber is formed in the base, communicates with the opening and the holes and receives the capacitor element. Because the electrolytic capacitor is simple, the electrolytic capacitor is assembled easily and quickly to lower cost. Further, the insulating housing is able to hold multiple capacitor elements, so the solid electrolytic capacitor has an increased capacitance.
    Type: Grant
    Filed: October 23, 2007
    Date of Patent: August 4, 2009
    Assignee: Gemmy Electronics Co., Ltd.
    Inventor: Chieh-Fu Lin
  • Patent number: 7561410
    Abstract: A hybrid capacitor is provided which includes a substrate, at least one plate capacitor and at least one through hole capacitor. The substrate has through holes and the plate capacitors are on the substrate. At least one through hole capacitor and at least one plate capacitor are in parallel. The through hole capacitor at least includes an anode layer, a first dielectric layer, a first cathode layer and a second cathode layer. The anode layer is disposed on an inner surface of at least one through hole, and a surface of the anode layer is a porous structure. The first dielectric layer is disposed on the porous structure of the anode layer and covered with the first cathode layer. The first cathode layer is covered with the second cathode layer. A conductivity of the second cathode layer is larger than a conductivity of the first cathode layer.
    Type: Grant
    Filed: March 18, 2008
    Date of Patent: July 14, 2009
    Assignee: Industrial Technology Research Institute
    Inventors: Min-Lin Lee, Li-Duan Tsai, Shur-Fen Liu, Bang-Hao Wu, Cheng-Liang Cheng
  • Patent number: 7548410
    Abstract: A capacitor has a capacitor element, a packaging material, and a sealing material. The capacitor element has an anode foil coupled to an anode terminal, a cathode foil coupled to a cathode terminal, a separator, and an electrolyte layer. The anode foil, the cathode foil and the separator are rolled together. The separator is between the anode foil and the cathode foil. The electrolyte layer is formed between the anode foil and the cathode foil. The packaging material has an opening and packages the capacitor element. The sealing material has a through hole where the anode terminal and the cathode terminal pass through and seals the opening of the packaging material. A given space is provided between the sealing material and the capacitor element. A stopper for securing the space is provided on at least one of the anode terminal and the cathode terminal.
    Type: Grant
    Filed: January 11, 2007
    Date of Patent: June 16, 2009
    Assignee: Nichicon Corporation
    Inventors: Akira Ueda, Ichirou Yamaji, Katsuharu Yamada, Minoru Funahashi, Junkichi Mabe, Ryoichi Kozaki
  • Publication number: 20090147449
    Abstract: A solid electrolytic capacitor includes a capacitor element, an anode lead frame, a cathode lead frame, and a mold resin portion. The anode lead frame includes an anode terminal portion and a rising portion, and the anode terminal portion is exposed at the bottom surface of the mold resin portion. The rising portion is formed integral with the anode terminal portion, and rises to the anode portion. In the rising portion, a through hole is formed. The cathode lead frame includes a cathode terminal portion, a pair of side surface portions and a step portion. Thus, a solid electrolytic capacitor allowing highly accurate and reliable attachment of the capacitor element to the lead frame without using any additional member is provided.
    Type: Application
    Filed: December 8, 2008
    Publication date: June 11, 2009
    Applicant: SANYO Electric Co., Ltd.
    Inventors: Keiko MATSUOKA, Shoji UMEDA, Yoshiyuki FUSHIMI, Koji TEZUKA
  • Publication number: 20090147447
    Abstract: A solid electrolytic capacitor includes a capacitor element, an anode lead frame, a cathode lead frame, and a mold resin portion. The anode lead frame includes an anode terminal portion and a rising portion. The rising portion is formed integral with the anode terminal portion, extends from the anode terminal portion through the mold resin and is connected to an anode portion. At the rising portion, a catching portion receiving and supporting the anode portion from below and a hook portion surrounding and holding an outer circumferential surface of the anode portion, with the anode portion received in the catching portion, are formed. Therefore, a solid electrolytic capacitor can be provided, which allows highly accurate attachment of the capacitor element on the lead frame without applying any additional member and reduces equivalent series resistance.
    Type: Application
    Filed: December 8, 2008
    Publication date: June 11, 2009
    Applicant: SANYO ELECTRIC CO., LTD.
    Inventors: Keiko MATSUOKA, Shoji UMEDA
  • Publication number: 20090147448
    Abstract: A solid electrolytic capacitor includes a capacitor element, an anode lead frame, a cathode lead frame, and a mold resin portion. The anode lead frame includes an anode terminal portion and a rising portion. The rising portion is formed integral with the anode terminal portion, and extends from the anode terminal portion through the mold resin portion toward the anode portion, and is connected to the anode portion. At the rising portion, a catching recess and a holding portion are formed and, in addition, a first slit is formed downward from the catching recess. Thus, a solid electrolytic capacitor allowing highly accurate and reliable attachment of the capacitor element to the lead frame without using any additional member is provided.
    Type: Application
    Filed: December 8, 2008
    Publication date: June 11, 2009
    Applicant: SANYO ELECTRIC CO., LTD.
    Inventors: Keiko MATSUOKA, Shoji UMEDA
  • Publication number: 20090122470
    Abstract: A solid electrolytic capacitor according to the present invention has: a capacitor element (30) having an anode terminal (31) protruding; a resin sheath (6) that covers the capacitor element (30); an anode lead frame (1) having an anode-side terminal surface (10) that is connected to a tip section of the anode terminal (31) of the capacitor element (30) and exposed from the resin sheath (6); and a cathode lead frame (2). The anode lead frame (1) includes, in a portion thereof embedded in the resin sheath (6), a spaced frame section (13) that extends along the anode terminal (31) at a distance from the anode terminal (31) and a bonding frame section (11) that protrudes from a center portion of the spaced frame section (13) to the anode terminal (31) and is bonded to the anode terminal (31).
    Type: Application
    Filed: October 20, 2006
    Publication date: May 14, 2009
    Applicant: SANYO ELECTRIC CO., LTD.
    Inventors: Keiko Matsuoka, Kazuhiro Kato, Hiroyuki Okuda, Koso Ishihara
  • Publication number: 20090059479
    Abstract: A solid electrolytic capacitor is provided in which volume efficiency of its capacitor element is improved. A converting substrate having an anode terminal forming portion and cathode terminal portion obtained by forming notches on faces exposed on outside faces of the anode and cathode portions and performing plating in the notches in portions in which the anode and cathode portions of a lower-face electrode type solid electrolytic capacitor is connected to the capacitor element and, after a sheathing resin is formed therein, the sheathed portion and converting substrate are cut along cutting planes to form fillet forming faces on the outside faces of the anode portion and cathode portion of the lower-face electrode type solid electrolytic capacitor.
    Type: Application
    Filed: March 7, 2008
    Publication date: March 5, 2009
    Inventors: Daisuke YAMASHITA, Kazuhiro Koike, Kazuyuki Kato, Masako Ohya, Kunihiko Shimizu
  • Patent number: 7479166
    Abstract: A method of manufacturing a solid electrolytic capacitor is provided for which an electrolytic polymerization solution can be used semipermanently while preventing a decrease in electrical conductivity of an electrically conductive polymer layer and an increase in ESR of the resultant electrolytic capacitor due to degradation of the electrolytic polymerization solution. The method of manufacturing a solid electrolytic capacitor as provided includes the step (A) of forming a dielectric layer on a surface of an anode element made of a valve metal, the step (B) of forming a cathode layer including an electrically conductive polymer layer on the dielectric layer, and the step (C) of adjusting the pH of a solution that contains a monomer and a dopant agent and that is used in forming the conductive polymer layer, by allowing the solution to contact an ion exchange or ion capture substance.
    Type: Grant
    Filed: March 19, 2007
    Date of Patent: January 20, 2009
    Assignees: SANYO Electric Co., Ltd., SUN Electronic Industries Corp.
    Inventor: Tadahito Ito
  • Publication number: 20090009930
    Abstract: [PROBLEMS] To provide electronic parts having a platy terminal secured through a conductive adhesive layer onto a device, which electronic parts are low in ESR and excel in the bonding strength between device and terminal. [MEANS FOR SOLVING PROBLEMS] The conductive adhesive contains a flat conductive member and an organic solvent and is characterized in that through vaporization of the organic solvent in vacuum atmosphere, the flat conductive member has a region standing in the direction of thickness of the conductive adhesive layer. Further, the conductive adhesive is characterized by containing portion wherein the angle between the platy terminal and the flat plane of conductive member is ?45°.
    Type: Application
    Filed: January 30, 2006
    Publication date: January 8, 2009
    Applicant: SANYO ELECTRIC CO., LTD.
    Inventors: Atsushi Furuzawa, Kohei Goto
  • Patent number: 7468882
    Abstract: An integrated capacitor assembly that offers improved performance characteristics in a convenient and space-saving package is provided. More specifically, the capacitor assembly contains a first solid electrolytic capacitor element and second solid electrolytic capacitor element positioned adjacent to the first solid electrolytic capacitor element. The first and second solid electrolytic capacitor elements each contain an anode formed from a valve metal composition having a specific charge of about 70,000 ?F*V/g or more, the anode having a thickness of from about 0.1 to about 4 millimeters. A thermally conductive material is positioned between the first and second solid electrolytic capacitor elements and electrically connected thereto. The thermally conductive material has a coefficient of thermal conductivity of about 100 W/m-K or more at a temperature of 20° C. A case encapsulates the first and second solid electrolytic capacitor elements.
    Type: Grant
    Filed: November 20, 2006
    Date of Patent: December 23, 2008
    Assignee: AVX Corporation
    Inventors: Ladislav Marek, Jaroslav Tomasko, Stanislav Zednicek
  • Patent number: 7457104
    Abstract: A solid capacitor and the manufacturing method thereof are disclosed. The solid capacitor consists of a dielectric layer and two electrodes. A plurality of holes formed by an opening process is disposed on surface of the dielectric layer. The two electrodes connect with the dielectric layer by the holes. By means of a plurality of high temperature volatile matters, the plurality of holes is formed on surface of the dielectric layer during sintered process. The holes are connected with the outside so as to increase surface area of the dielectric layer and further the capacity is increased. And the solid capacitor stores charge by physical means. Moreover, the solid capacitor can be stacked repeatedly to become a multilayer capacitor.
    Type: Grant
    Filed: February 20, 2008
    Date of Patent: November 25, 2008
    Assignee: CTech Corporation
    Inventors: Shang Mei Lee, Ting Keng Lin, Yung Sheng Huang
  • Publication number: 20080285207
    Abstract: The invention relates to an electric energy storage component comprising a coil winding and at least one connector (100, 200) including a plate (100) which is in contact with a plurality of said coils, wherein the plate of the connector has a surface which is provided with a terminal (200) wherein the shape thereof is essentially that of a revolution, wherein the plate (100) also forms a series of bosses (120, 125) extending in a raised manner along a surface of the plate opposite to the that containing the terminal (200). The invention is characterized in that the terminal (200) has at least one inner recess (210) and in that at least one boss (100) penetrates into said recess (210).
    Type: Application
    Filed: June 9, 2005
    Publication date: November 20, 2008
    Inventors: Olivier Caumont, Xavier Hascoet
  • Patent number: 7450366
    Abstract: A solid electrolytic capacitor (A1) includes a porous sintered body (1) of valve metal, internal anode terminals (11a, 11b) projecting from the porous sintered body, and external anode terminals (21a, 21b) positioned lower than the internal anode terminals and having a bottom surface utilized for surface-mounting. The internal anode terminals (11a, 11b) are provided at a position lower than the center of the porous sintered body (1) in the height direction of the porous sintered body.
    Type: Grant
    Filed: February 25, 2005
    Date of Patent: November 11, 2008
    Assignee: Rohm Co., Ltd.
    Inventor: Chojiro Kuriyama
  • Patent number: 7447000
    Abstract: A solid electrolytic capacitor having multiple capacitor elements and a lead frame is provided. Each capacitor element includes an anode part, a cathode part, an insulating part and at least one first slit. The cathode part is disposed opposite to the anode part. The insulating part is disposed between the anode part and the cathode part. The first slit is disposed at the anode part. The lead frame has an upper surface and a lower surface where the capacitor elements are stacked on. The lead frame includes an anode terminal part electrically connected to the anode part, and includes a cathode terminal part electrically connected to the cathode part. Specially, the anode terminal part includes at least one first projecting part, which projects toward the upper surface. The capacitor elements are stacked on the upper surface and the first slit is inserted into the first projecting part.
    Type: Grant
    Filed: June 22, 2007
    Date of Patent: November 4, 2008
    Assignee: Industrial Technology Research Institute
    Inventors: Cheng-Liang Cheng, Kuo-Ching Cheng, Yi-Hsiu Pan, Bang-Hao Wu, Li-Duan Tsai
  • Patent number: 7443655
    Abstract: A capacitor includes a first capacitor element and a second capacitor element laminated on this first capacitor element. The first capacitor element is a solid electrolytic capacitor including a through-hole electrode penetrating a valve metal sheet and having one surface on which cathode and anode terminal portions are taken out. The second capacitor element has first and second electrodes which are provided via a dielectric layer, and second through-hole electrodes penetrating the dielectric layer. The second through-hole electrodes are coupled to the first electrode and insulated from the second electrode. Lead-out portions of the second electrodes are exposed from the dielectric layer. The second through-hole electrodes and the lead-out portions are disposed alternately. The first electrode is electrically coupled to the first through-hole electrode and the second electrode is electrically coupled to the valve metal sheet.
    Type: Grant
    Filed: July 7, 2005
    Date of Patent: October 28, 2008
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventors: Katsumasa Miki, Tatsuo Fujii, Yuji Midou, Suzushi Kimura
  • Publication number: 20080247122
    Abstract: A surface mount capacitor is provided. The surface mount capacitor includes a capacitive element including an anode and a cathode, the anode having an exposed portion, an encapsulation material partially surrounding the capacitive element, a non-conductive substrate in contact with the encapsulation material, an anode termination connected to the non-conductive substrate, a cathode termination connected to the non-conductive substrate, and a first conductive path between the exposed portion of the anode and the anode termination comprising a first external conductive connection on a first external surface of the capacitor. The capacitor may also include a second conductive path between the cathode and the cathode termination. The second conductive path includes a second external conductive connection on a second external surface of the capacitor. The second conductive path may further include a conductive adhesive between the cathode and the second external conductive connection.
    Type: Application
    Filed: May 11, 2007
    Publication date: October 9, 2008
    Applicant: VISHAY SPRAGUE, INC.
    Inventors: PAVEL VAISMAN, ALEX EIDELMAN, EVGENY PETUHOV
  • Patent number: 7433164
    Abstract: A ceiling fan motor control module includes a digital core controller coupled to a brushless motor for computing, processing, transmitting and controlling signals and providing a soft start and stop function, a back stage output device for receiving signals from the digital core controller and modulating the voltage to a predetermine operating value for driving the brushless motor, a protection control device for receiving and detecting signals from each power supply, back stage output device and brushless motor to effectively provide an automatic tripping protection, a signal indication module for receiving signals from the digital core controller to indicate the current status of the digital core controller, and an interface processing device installed between each power supply and the digital core controller for receiving a feedback signal and a control command of the digital core controller, such that the protection control device can automatically and effectively disconnect the output and stop the operat
    Type: Grant
    Filed: October 4, 2006
    Date of Patent: October 7, 2008
    Inventor: Hui-Yen Chu
  • Patent number: 7420797
    Abstract: An apparatus comprising a capacitor stack, including one or more substantially planar anode layers, and one or more substantially planar cathode layers. Additionally, the capacitor has a case having a first opening and a second opening, the first opening sized for passage of the capacitor stack, and a cover substantially conforming to the first opening and sealingly connected to the first opening. Also, the capacitor includes a plate substantially conforming to the second opening and sealingly connected to the second opening, the plate defining an aperture. Additionally, the capacitor includes a plug substantially conforming to the aperture in the plate, the plug sealingly connected to the plate. The capacitor stack is disposed in the case, and the terminal is in electrical connection with the case and at least one capacitor electrode.
    Type: Grant
    Filed: July 15, 2005
    Date of Patent: September 2, 2008
    Assignee: Cardiac Pacemakers, Inc.
    Inventor: Brian L. Schmidt
  • Patent number: 7394649
    Abstract: A solid electrolytic capacitor includes a capacitor element, an anode terminal, a cathode terminal, and an outer casing resin. The anode and cathode terminals constitute parts of the mounting surface, and are drawn immediately below the capacitor element. The anode terminal and the cathode terminal are electrically coupled with an anode leader of the capacitor element and a cathode layer, respectively. The outer casing resin covers the capacitor element, and exposes the anode and cathode terminals on the mounting surface. At least one recess is provided on a mounting surface side of at least one of the anode and cathode terminals having a larger area projected onto the mounting surface.
    Type: Grant
    Filed: April 11, 2007
    Date of Patent: July 1, 2008
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventors: Katsuyuki Nakamura, Kazuo Kawahito, Takahiro Jodoi, Hideto Yamaguchi
  • Patent number: 7385804
    Abstract: A solid electrolytic capacitor (A1) includes a porous sintered body (10) of metal particles or conductive ceramic particles, anode wires (11A, 11B) partially inserted in the porous sintered body (10), an anode terminal provided by portions of the anode wires (11A, 11B) which project from the porous sintered body (10), and a cathode (30) formed on an obverse surface of the porous sintered body (10). The anode terminal includes a first and a second anode terminals (11a, 11b), and circuit current flows from the first anode terminal (11a) toward the second anode terminal (11b) through the porous sintered body (10). Therefore, noise cancellation property can be enhanced with respect to a wide frequency band, and large electric power can be supplied with high responsiveness. In a circuit using the solid electrolytic capacitor (A1), the space efficiency on aboard can be enhanced, and the cost can be reduced.
    Type: Grant
    Filed: August 11, 2004
    Date of Patent: June 10, 2008
    Assignee: Rohm Co., Ltd.
    Inventor: Chojiro Kuriyama
  • Patent number: 7375950
    Abstract: A solid electrolytic capacitor of the present invention includes a capacitor element having an anode member, a dielectric member, and a cathode member; an anode terminal attached to the anode member; a cathode terminal attached to the cathode member; and a housing for covering an outer periphery of the capacitor element, the anode terminal and the cathode terminal being each at least partly exposed from an undersurface of the solid electrolytic capacitor, the anode terminal having a projection formed by rolling using a roll having a large diameter portion and a small diameter portion, and being connected to the anode member at the projection.
    Type: Grant
    Filed: October 31, 2006
    Date of Patent: May 20, 2008
    Assignee: Sanyo Electric Co., Ltd.
    Inventors: Eizo Fujii, Hidenori Kamigawa
  • Publication number: 20080106854
    Abstract: In a lead frame for use in fabricating a face-down terminal solid electrolytic capacitor having a capacitor element an anode terminal, and a cathode terminal, a frame body has a connecting portion for being connected to the capacitor element. The connecting portion extends from a cathode terminal forming portion in a first direction to a position near an anode terminal forming portion. The anode terminal forming portion is connected to the frame body and used for forming the anode terminal. The cathode terminal forming portion is connected to the frame body and used for forming the cathode terminal. The anode terminal forming and the cathode terminal forming portions are spaced to each other in the first direction on a principal surface of the frame body.
    Type: Application
    Filed: November 6, 2006
    Publication date: May 8, 2008
    Applicant: NEC TOKIN CORPORATION
    Inventor: Masami Ishijima
  • Patent number: 7365961
    Abstract: A solid electrolytic capacitor includes a planar solid electrolytic capacitor element having anode and cathode portions; anode and cathode terminals; and insulating coating resin. The anode terminal is electrically connected at the top surface thereof to the anode portion. The cathode terminal is electrically connected at the top surface side thereof to the cathode portion. The coating resin integrally coats the capacitor element so as to expose the bottom surfaces of the anode and cathode terminals. The anode and cathode terminals are disposed as close to each other as not more than 3 mm. The anode and cathode terminals have stair steps on both sides thereof and are connected to the anode and cathode portions at joint faces, respectively. The anode joint faces and the cathode joint faces are coated with coating resin. The solid electrolytic capacitor is provided with the anode joint faces and/or the cathode joint faces.
    Type: Grant
    Filed: October 11, 2005
    Date of Patent: April 29, 2008
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventors: Junichi Kurita, Tsuyoshi Yoshino, Hirotoshi Toji, Kazuo Kawahito, Takashi Iwakiri, Hiroshi Serikawa, Kenji Kuranuki
  • Patent number: 7365963
    Abstract: The invention provides a capacitor element and solid electrolyte capacitor which allow significant increase in electrostatic capacity with the same dimensions and shape, as well as a process for their production. The capacitor element 12 of the invention is provided with an aluminum base 18 having a shape with a plurality of sides 1a, 1b, anode sections 30 partially formed at the edge region 3a, 3b of at least one side among the plurality of sides in the area on the main surface 12b of the aluminum base 18, cathode sections 32 comprising a solid electrolyte layer 22 formed on the aluminum base 18 via an aluminum oxide film 20 and a silver paste layer 26 formed on the solid electrolyte layer 22, which are formed on the remaining regions 31 from the regions on which the anode sections 30 are formed, in the area on the main surface 12b of the aluminum base 18, and slits 28 which provide electrical insulation between the anode sections 30 and cathode sections 32.
    Type: Grant
    Filed: March 17, 2004
    Date of Patent: April 29, 2008
    Assignee: TDK Corporation
    Inventors: Yumiko Yoshihara, Masaaki Kobayashi
  • Patent number: 7359180
    Abstract: A solid electrolytic capacitor includes a flat-shaped anode terminal having a first surface connected to an anode portion of a capacitor element and having a second surface opposite to the first surface, a flat-shaped cathode terminal having a first surface connected to a cathode layer of the capacitor element and having a second surface opposite to the first surface thereof, and an insulating resin package accommodating the capacitor element, the anode terminal, and the cathode terminal. The second surface of the cathode terminal is flush with the second surface of the anode terminal. The second surface of the anode terminal and the second surface of the cathode terminal expose to an outside of the resin package. The anode terminal includes a first thick portion and a first thin portion thinner than the first thick portion. The first thick portion has the second surface of the anode terminal and a portion of the first surface of the anode terminal.
    Type: Grant
    Filed: April 11, 2005
    Date of Patent: April 15, 2008
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventors: Junichi Kurita, Kazuo Tadanobu, Kenji Kuranuki, Yuji Midou, Tsuyoshi Yoshino, Tatsuo Fujii, Hiroshi Serikawa
  • Patent number: 7359181
    Abstract: A solid electrolytic capacitor includes a porous sintered body made of valve metal, and an external anode terminal used for surface-mounting. The anode terminal is offset from the center of the sintered body, as viewed in the thickness direction or first direction of the sintered body. Further, the anode terminal is spaced away from the sintered body in a second direction which is perpendicular to the first direction. Between the sintered body and the anode terminal is formed a conductive path, which is inclined with respect to both the first and the second directions. The path comes closer to the anode terminal in the first direction as it goes farther away from the sintered body in the second direction.
    Type: Grant
    Filed: October 4, 2005
    Date of Patent: April 15, 2008
    Assignee: Rohm Co., Ltd.
    Inventor: Chojiro Kuriyama
  • Patent number: 7355842
    Abstract: The present invention relates to a chip solid electrolyte capacitor obtained by connecting a part of the anode part and a part of the cathode part of a capacitor element to an anode terminal and a cathode terminal, respectively, and jacket-molding the capacitor element excluding a part or the whole of respective bottom faces or bottom and side faces of the anode and cathode terminals, wherein the connection face of the cathode terminal to the capacitor element is larger than the entire face of the capacitor element in the side connected to the cathode terminal, having large capacitance and low equivalent series resistance (ESR); a production method of the capacitor and an electronic device using the capacitor.
    Type: Grant
    Filed: August 19, 2004
    Date of Patent: April 8, 2008
    Assignee: Showa Denko K.K.
    Inventor: Kazumi Naito
  • Patent number: 7352562
    Abstract: A solid electrolytic capacitor includes a capacitor element 2, an anode lead terminal 3 electrically connected to an anode of the capacitor element, a cathode lead terminal 4 electrically connected to a cathode of the capacitor element, and a package 5 which is made of synthetic resin and hermetically seals the capacitor element. The lead terminals are embedded in the bottom 5a of the package with the lower surfaces of the lead terminals exposed at the bottom surface of the package. The anode lead terminal and the cathode lead terminal are respectively formed with standing pieces 8 and 9 at portions corresponding to side surfaces 5b, 5c of the package, and the standing pieces have respective outer surfaces exposed at the side surfaces of the package. This structure enhances the soldering strength and facilitates the visual inspection of the quality of the soldering.
    Type: Grant
    Filed: September 17, 2004
    Date of Patent: April 1, 2008
    Assignee: Rohm Co., Ltd.
    Inventor: Eisaku Tanaka
  • Patent number: 7342775
    Abstract: An anode with an anode body with a first side and a second side opposite to said first side, multiple anode wires and a conductive polymer cathode.
    Type: Grant
    Filed: September 21, 2006
    Date of Patent: March 11, 2008
    Assignee: Kemet Electronics Corporation
    Inventors: Randy S. Hahn, Yongjian Qiu
  • Patent number: 7336491
    Abstract: A heat dissipation device for electrical components includes an outer surface and an inner surface. The outer surface is configured for mounting the electrical components thereon, wherein the components are mounted to the outer surface to allow the transfer of heat from the electrical components to the heat dissipation device and ambient air. The inner surface defines a cavity within the heat dissipation device that also enables housing of the electrical components.
    Type: Grant
    Filed: September 6, 2005
    Date of Patent: February 26, 2008
    Assignee: Lear Corporation
    Inventors: Frank Goemmel, Roland Hammer
  • Patent number: 7327557
    Abstract: A structure and method for connecting capacitor electrodes is provided. One aspect of this disclosure relates to an apparatus for connecting cathodes. The apparatus includes a cathode layer containing an aperture, and a connection member. The connection member includes a protrusion mateable to the aperture having a length at least equal to a thickness of the cathode layer, a first flat section perpendicular to the protrusion, the first flat section having a first side attached to the protrusion and a second side including a contact surface, and a second flat section perpendicular to the first flat section, the second flat section at an offset distance from the protrusion and having a height equal to or greater than the protrusion, and where the connection member is mated to the cathode layer. Other aspects and embodiments are provided herein.
    Type: Grant
    Filed: April 21, 2006
    Date of Patent: February 5, 2008
    Assignee: Cardiac Pacemakers, Inc.
    Inventor: James M. Poplett
  • Patent number: 7324330
    Abstract: The capacitor element includes a porous chip body and an anode wire having an end portion embedded in the chip body. The chip body includes a surface provided with a dielectric film which in turn is formed with a solid electrolyte layer thereon. Further, the solid electrolyte layer is laminated with a cathode film. The chip body is formed by sintering a mixture of valve metal powder and a sintering inhibitor added as impurities. Similarly, the anode wire is made of valve metal containing a sintering inhibitor.
    Type: Grant
    Filed: March 15, 2006
    Date of Patent: January 29, 2008
    Assignee: Rohm Co., Ltd.
    Inventor: Shinji Nakamura
  • Patent number: 7317610
    Abstract: A sheet-shaped capacitor for storing electrical charges of large capacities, and to assure facilitated manufacture, cost reduction and improved reliability, and a method for manufacturing the capacitor. The capacitor includes a dielectric film 12, formed on a first major surface of a metal plate 11, an electrically conductive high polymer layer 13, formed on a first major surface of the dielectric film, and an electrically conductive layer 14 formed on a first major surface of the electrically conductive high polymer layer 13, such as by copper plating. A cathode electrode 20 is led out from the electrically conductive layer 14 on the side electrically conductive high polymer layer 13.
    Type: Grant
    Filed: November 15, 2005
    Date of Patent: January 8, 2008
    Assignees: NEC Toppan Circuit Solutions, Inc., NEC Tokin Corporation
    Inventors: Hirofumi Nakamura, Yutaka Akimoto, Sadamu Toita, Takayuki Inoi, Katsuhiro Yoshida
  • Publication number: 20070279841
    Abstract: A chip capacitor which can be miniaturized with structural stability. In the chip capacitor, a capacitor device has a cathode layer formed on an outer surface thereof and an anode wire is protruded from a portion thereof. A cathode lead is electrically connected to the cathode layer. An anode lead is electrically connected to the anode wire through a weld reinforcement. A molding is configured to cover the capacitor device in such a way that the cathode and anode leads are only partially exposed. Protrusions are protruded from outer surfaces of the cathode and anode leads, respectively, thereby forming steps on the outer surfaces thereof. In the chip capacitor, the leads and molding are bonded with much greater strength, thus more structurally robust. Also, this prevents external moisture from penetrating inside the chip capacitor, thereby significantly enhancing moisture resistance.
    Type: Application
    Filed: June 1, 2007
    Publication date: December 6, 2007
    Inventors: Jae Kwang Kim, Hee Dong Myung, Jae Jun Park, Gyu Hwang Lee
  • Patent number: 7304833
    Abstract: A multiterminal-pair solid electrolytic capacitor employing a two-terminal type capacitor element is provided. In the solid electrolytic capacitor 10 in accordance with the present invention, anode terminal patterns 42A (and anode terminals 43A) are connected to an anode part 24 of a capacitor element 12 through anode vias 44A formed in a substrate 14 and an anode pattern 38D formed on a element carrying surface 14a. On the other hand, cathode terminal patterns 42B (and cathode terminals 43B) are connected to a cathode part 28 on the surface of an accumulator 26 of the capacitor element 12 through cathode vias 44B formed in the substrate 14 and cathode patterns 38A to 38C formed on the element carrying surface 14a.
    Type: Grant
    Filed: February 21, 2007
    Date of Patent: December 4, 2007
    Assignee: TDK Corporation
    Inventor: Masaaki Kobayashi
  • Publication number: 20070274026
    Abstract: A solid electrolytic capacitor includes a capacitor element, an anode-side lead terminal connected to an anode of the capacitor element, a cathode-side lead terminal connected to a cathode of the capacitor element, and an armor covering the capacitor element and having an electrical insulating property. The armor has two principal faces opposed to each other, and two side faces connecting the two principal faces and opposed to each other. The anode-side lead terminal has at least a first terminal portion exposed in one of the principal faces. The cathode-side lead terminal has at least a first terminal portion exposed in the one of the principal faces, and a second terminal portion exposed in the one of the principal faces and extending from the first terminal portion so as to be exposed in either of the two side faces. The solid electrolytic capacitor satisfies the following relation: W/G?1.
    Type: Application
    Filed: May 10, 2007
    Publication date: November 29, 2007
    Applicant: TDK CORPORATION
    Inventors: Masaaki Togashi, Masaaki Kobayashi
  • Patent number: 7295426
    Abstract: A manufacturing method for a solid electrolytic capacitor of the present invention includes producing a terminal frame having aligned therein unit terminal areas each including an anode terminal portion and a cathode terminal portion, placing a rod-like piece on a surface of the terminal frame across a plurality of aligned anode terminal portions, and fixing the rod-like piece to the terminal frame by welding. Thereafter, a solid electrolytic capacitor is provided through a placement of a capacitor element, charge of a mold resin, and a cutting process.
    Type: Grant
    Filed: March 30, 2006
    Date of Patent: November 13, 2007
    Assignee: Sanyo Electric Co., Ltd.
    Inventor: Hayatoshi Ihara
  • Patent number: 7283352
    Abstract: A portion of an anode lead frame 3 of a solid electrolytic capacitor 1 is bent to form a protruding portion 4 that protrudes toward an anode lead 20. The protruding portion 4 includes a first horizontal portion 41 positioned higher than and substantially parallel to the anode lead 20, a second horizontal portion 40 contacting the anode lead 20, a sloping portion 42 linking the inner end of the first horizontal portion 41 with the outer end of the second horizontal portion 40, and an auxiliary bent portion 43 bent upward from the inner end of the second horizontal portion 40 and substantially symmetrical with the sloping portion 42. A contact surface 46 of the second horizontal portion 40 with the anode lead 20 is formed flat, and a surface 47 of the second horizontal portion 40 on the opposite side to the contact surface 46 is formed with a rounded curvature.
    Type: Grant
    Filed: January 25, 2007
    Date of Patent: October 16, 2007
    Assignees: Sanyo Electric Co., Ltd., Furukawa Precision Engineering Co., Ltd.
    Inventors: Keiko Matsuoka, Kazuhiro Kato, Kunio Shibata, Yoshiyuki Fushimi
  • Patent number: 7283351
    Abstract: A gas discharge lamp power supply having a base, a pair of opposed side walls extending from the base, and opposed first and second end walls extending from the base between the opposed side walls. The first end wall has a sloped wall extending angularly between the side walls, and two input terminals are mounted on the sloped wall. In another embodiment, the power supply has a control with a nonvolatile memory for storing an error code in response to a detected fault condition, thereby permitting the error code to be displayed upon power being removed from and then, subsequently reapplied.
    Type: Grant
    Filed: March 28, 2005
    Date of Patent: October 16, 2007
    Assignee: France/A Scott Fetzer Company
    Inventors: William T. Hopkins, Anthony W. Banks, Alan M. Smith, Louis B. Pickvet, Robert L. Towe, Charles A. Schlemm
  • Patent number: 7280343
    Abstract: An integrated capacitor assembly that offers improved performance characteristics in a convenient and space-saving package is provided. The capacitor assembly contains multiple discrete solid electrolytic capacitors that are “finished” in the sense that they are provided with leads and encapsulated. This allows each individual capacitor to be tested for performance prior to its incorporation into the capacitor assembly, thereby increasing the product yield and quality. More specifically, because each individual capacitor may be “pre-tested” and “aged”, the likelihood that the final capacitor assembly will fail its performance test is minimal.
    Type: Grant
    Filed: October 31, 2006
    Date of Patent: October 9, 2007
    Assignee: AVX Corporation
    Inventors: Stanislav Zednicek, Leos Dvorak, Radek Matousek, Jiri Navratil
  • Publication number: 20070230093
    Abstract: A multiterminal-pair solid electrolytic capacitor employing a two-terminal type capacitor element is provided. In the solid electrolytic capacitor 10 in accordance with the present invention, anode terminal patterns 42A (and anode terminals 43A) are connected to an anode part 24 of a capacitor element 12 through anode vias 44A formed in a substrate 14 and an anode pattern 38D formed on a element carrying surface 14a. On the other hand, cathode terminal patterns 42B (and cathode terminals 43B) are connected to a cathode part 28 on the surface of an accumulator 26 of the capacitor element 12 through cathode vias 44B formed in the substrate 14 and cathode patterns 38A to 38C formed on the element carrying surface 14a.
    Type: Application
    Filed: February 21, 2007
    Publication date: October 4, 2007
    Applicant: TDK CORPORATION
    Inventor: Masaaki Kobayashi
  • Patent number: 7277271
    Abstract: A solid electrolytic capacitor includes a capacitor unit having a cathode frame coupled to a cathode part of a capacitor element, and anode frames formed at the opposite sides of the capacitor unit sandwiching a cathode frame, and coupled to an anode part of the capacitor element. Flat parts provided at the opposite ends of anode terminals are coupled to the anode frames. A flat part provided in the center of a cathode terminal is coupled to the cathode frame. The capacitor unit is covered with coating resin. The solid electrolytic capacitor has a simplified structure and a lower ESL.
    Type: Grant
    Filed: July 19, 2006
    Date of Patent: October 2, 2007
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventors: Hideto Yamaguchi, Katsuhisa Ishizaki
  • Patent number: 7271995
    Abstract: Surface mount electrolytic capacitors are provided with anode and cathode terminations having respective first termination portions provided on the bottom surface of a molded package in a generally coplanar configuration. A second cathode termination portion is bent in a generally perpendicular fashion to the first cathode termination portion and may then be adhered to the external cathode layer of a capacitor body. A second anode termination portion is bent in a generally perpendicular fashion to the first anode termination portion and may then be welded to an anode wire connected to and extending from the capacitor body. An insulation pad may be provided between the first anode termination portion and the capacitor body to prevent device shorting. A planar termination frame may be provided to form the electrolytic capacitors of the present subject matter.
    Type: Grant
    Filed: November 18, 2004
    Date of Patent: September 18, 2007
    Assignee: AVX Corporation
    Inventors: Douglas M. Edson, Glenn M. Vaillancourt, Walter Koda, Scott A. McCarthy, James A. Fife
  • Patent number: 7262955
    Abstract: An anode terminal or a cathode terminal is provided with an exposure portion that extends substantially perpendicularly to an arrangement direction of the two terminals and that have an end face exposed on a side face of a housing. At least the end face on the exposure portion is plated for improving the solder wettability. Furthermore, a front end portion of the exposure portion is bent upwards along a peripheral face of the housing.
    Type: Grant
    Filed: May 25, 2006
    Date of Patent: August 28, 2007
    Assignee: Sanyo Electric Co., Ltd.
    Inventors: Hideki Ishida, Eizo Fujii, Takeshi Takamatsu
  • Publication number: 20070171599
    Abstract: A portion of an anode lead frame 3 of a solid electrolytic capacitor 1 is bent to form a protruding portion 4 that protrudes toward an anode lead 20. The protruding portion 4 includes a first horizontal portion 41 positioned higher than and substantially parallel to the anode lead 20, a second horizontal portion 40 contacting the anode lead 20, a sloping portion 42 linking the inner end of the first horizontal portion 41 with the outer end of the second horizontal portion 40, and an auxiliary bent portion 43 bent upward from the inner end of the second horizontal portion 40 and substantially symmetrical with the sloping portion 42. A contact surface 46 of the second horizontal portion 40 with the anode lead 20 is formed flat, and a surface 47 of the second horizontal portion 40 on the opposite side to the contact surface 46 is formed with a rounded curvature.
    Type: Application
    Filed: January 25, 2007
    Publication date: July 26, 2007
    Applicants: SANYO ELECTRIC CO., LTD., FURUKAWA PRECISION ENGINEERING CO., LTD.
    Inventors: Keiko Matsuoka, Kazuhiro Kato, Kunio Shibata, Yoshiyuki Fushimi
  • Patent number: 7233485
    Abstract: A solid electrolytic capacitor includes: a capacitor element including an anode made of a valve metal having an oxide film formed on a surface thereof, a cathode provided with a valve metal, and a separator provided between the anode and the cathode, the anode and the cathode and the separator being wound around together; a solid electrolyte interposed between the anode and the cathode; an anode lead tab having an oxide film formed on a surface thereof and being fixed to the anode; and a cathode lead tab fixed to the cathode. The oxide film of the anode lead tab has a portion the thickness of which is equal to or greater than 75% but less than 100% of the thickness of the oxide film of the anode.
    Type: Grant
    Filed: February 10, 2006
    Date of Patent: June 19, 2007
    Assignees: Sanyo Electric Co., Ltd., Saga Sanyo Industries Co., Ltd.
    Inventors: Kazumasa Fujimoto, Sachiko Yoshino
  • Patent number: 7221556
    Abstract: In one aspect, a method of interconnecting two or more foils of a capacitor, the method comprising connecting together one or more anode connection members of one or more anode foils and one or more cathode connection members of one or more cathode foils and electrically isolating the one or more anode foils from the one or more cathode foils.
    Type: Grant
    Filed: January 5, 2006
    Date of Patent: May 22, 2007
    Assignee: Cardiac Pacemakers, Inc.
    Inventors: Brian L. Schmidt, Michael J. O'Phelan, Michael Krautkramer, Gregory J. Sherwood, A. Gordon Barr