Patents Examined by Anthony Dinkins
-
Patent number: 6865071Abstract: A method for making an integrated electrolytic capacitor wherein a substrate (40) is coated with at least one sequence of each of the following layers: a vacuum deposited film (42) having a high specific surface area, which is selected from the group consisting of valve metals and mixtures of valve metals with valve metal oxides; superimposed on the film having a high specific surface area, at least one dielectric film (46) comprising a substance selected from the group consisting of valve metal oxides, their complex oxides with at least one rare earth metal and their complex oxides with at least one alkaline earth metal; and a solid electrolyte film (48) superimposed on the at least one film.Type: GrantFiled: August 22, 2003Date of Patent: March 8, 2005Assignee: Acktar Ltd.Inventors: Dina Katsir, Zvi Finkelstein
-
Patent number: 6865070Abstract: The invention provides a solid electrolytic capacitor of a configuration having a metal plated layer in a cathode part in order to prevent a decrease in the conductivity by oxidation of a conductive polymer and to realize a high reliability. Also there is provided a configuration in which a cathode part of the solid electrolytic capacitor includes a first metal plated layer and a solderable second metal layer.Type: GrantFiled: August 11, 2003Date of Patent: March 8, 2005Assignee: NEC Tokin CorporationInventors: Satoshi Arai, Takayuki Inoi, Yoshihiko Saiki, Sadamu Toita
-
Patent number: 6862168Abstract: A organic electrolytic capacitor comprising a positive electrode, a negative electrode and an aprotic organic solvent of a lithium salt as an electrolytic solution, wherein a positive electrode active material is capable of reversibly holding lithium ions and anions, a negative electrode active material is capable of reversibly holding lithium ions, the negative electrode active material has three times or more capacitance per unit weight as the positive electrode active material, the weight of the positive electrode active material is larger than the weight of the negative electrode active material, and the negative electrode is provided with lithium deposited thereon in advance. Ease of manufacture, high capacity and high withstanding voltage are achieved with this constitution.Type: GrantFiled: March 29, 2002Date of Patent: March 1, 2005Assignee: Kanebo, LimitedInventors: Nobuo Ando, Shinichi Tasaki, Hiromoto Taguchi, Yukinori Hato
-
Patent number: 6862169Abstract: A solid electrolytic capacitor having a plurality of solid electrolytic capacitor elements each having an anode part assigned to one end part of an anode substrate composed of a valve-acting metal having on the surface thereof a dielectric film layer, and a cathode part consisting of a solid electrolyte layer formed on the dielectric film layer in the remaining portion of the anode substrate and an electrically conducting layer formed on the solid electrolyte layer. The anode parts are stacked on one another and the cathode parts are stacked on one another, and the stacked anode parts and stacked cathode parts are connected to a lead frame and are molded with an outer jacket resin. Each solid electrolytic capacitor element has a notched part at least at one part of the cathode part and an electrically conductive material fills the notched part.Type: GrantFiled: February 10, 2003Date of Patent: March 1, 2005Assignee: Showa Denko Kabushiki KaishaInventor: Masahiro Kuroyanagi
-
Patent number: 6862170Abstract: A solid-state electrolytic capacitor and its producing method are disclosed. First, a capacitor element containing conducting polymer as the electrolyte sucks non-conjugate polymer precursors solution and the polymeric precursor polymerizes and crosslinks. Therefore, the conducting polymer combines non-conjugate polymer into a kind of interpenetration or semi-interpenetration network polymer material. Finally complete the manufacture of the capacitor by sealing the capacitor, and conducting the age process.Type: GrantFiled: January 29, 2004Date of Patent: March 1, 2005Assignee: Industrial Technology Research Institute-Material Research LaboratoriesInventors: Li-Duan Tsai, Yi-Chang Du
-
Patent number: 6859353Abstract: Structures for serially connecting at least two capacitors together are described. Serially connecting capacitors together provides device manufactures, such as those selling implantable medical devices, with broad flexibility in terms of both how many capacitors are incorporated in the device and what configuration the capacitor assembly will assume.Type: GrantFiled: December 11, 2003Date of Patent: February 22, 2005Assignee: Wilson Greatbatch Technologies, Inc.Inventors: William B. Elliott, Eric Stemen
-
Patent number: 6855885Abstract: A housing for an electrical component includes an electrically conductive cup which includes a wall, a floor, and a cover having electrical terminals. The housing also includes an electrically insulating coating applied to an outside of the floor and adjoining regions of the wall, and an electrically insulating covering which covers the wall at least partially and which overlaps the electrically insulating coating. The electrically insulating covering is on the electrically insulating coating and does not coat the floor. A mounting plate is also included on which the floor is positioned.Type: GrantFiled: August 7, 2002Date of Patent: February 15, 2005Assignee: Epcos AGInventor: Wilhelm Schweikert
-
Patent number: 6853534Abstract: A tunable capacitor. The tunable capacitor has a first fixed capacitor electrode and a second fixed capacitor electrode opposite to one another. The tunable capacitor also has a movable element formed of a conductive material. The movable element is moveable between the first fixed capacitor electrode and the second fixed capacitor electrode to adjust the capacitance between the first fixed capacitor electrode and the second fixed capacitor electrode.Type: GrantFiled: June 9, 2003Date of Patent: February 8, 2005Assignee: Agilent Technologies, Inc.Inventor: Kirt R. Williams
-
Patent number: 6853531Abstract: A material processing machine such as a wood chipping machine, a press, or other machine comprising an operating region having at least one processing element, and an access region through which material passes to the operating region, has at least one passive sensor that may be worn by a user of the machine, for example, around their wrist, and at least one sensing coil mounted in the access region of the machine for detecting the presence of the passive sensor in the access region. Control circuitry responsive to the at least one sensing coil provides control signals for stopping operation of the machine, preventing start-up of the machine and/or otherwise preventing injury to the machine user.Type: GrantFiled: July 3, 2002Date of Patent: February 8, 2005Inventors: Corey Alexander Mather, Mark William Gust
-
Patent number: 6850405Abstract: New designs that provide two anodes and their associated feedthroughs incorporated into one capacitor are described. The feedthrough wires can be in their own glass-to-metal seal or, they can be combined into one glass-to-metal seal as long as they are electrically insulated from each other. One embodiment has the anode feedthroughs left unconnected, while in other embodiments; they are joined externally of the capacitor casing. Several interconnect designs are described.Type: GrantFiled: December 16, 2003Date of Patent: February 1, 2005Assignee: Wilson Greatbatch Technologies, Inc.Inventors: Richard Mileham, Eric Stemen, Laurie O'Connor, William Elliott, Joseph E. Spaulding, Barry C. Muffoletto, Douglas Eberhard
-
Patent number: 6850406Abstract: An Nb solid electrolytic capacitor is disclosed which comprises: an anode body made from an Nb-based material, the anode body having a nitrogen content of about 7,500 ppm to about 47,000 ppm; a dielectric layer formed over the surface of the anode body; a solid electrolyte layer formed on the dielectric layer; and a cathode body formed on the surface of the solid electrolyte layer. The Nb solid electrolytic capacitor shows small bias dependence. A method for preparing the same is also disclosed which comprises steps of: forming an anode body from an Nb-based material, the anode body having a nitrogen content of about 7,500 ppm to about 47,000 ppm; forming a dielectric layer over the surface of the anode body; forming a solid electrolyte layer on the dielectric layer; and forming a cathode body on the electrolyte layer.Type: GrantFiled: January 16, 2003Date of Patent: February 1, 2005Assignee: NEC Tokin CorporationInventors: Tadamasa Asami, Katsuhiro Yoshida, Kunihiko Shimizu, Takashi Kono
-
Patent number: 6850404Abstract: An electrical component includes stacked electrode layers arranged on a foundation. The stacked electrode layers include a first type of electrode layer and a second type of electrode layer. Dielectric layers separate the stacked electrode layers to form at least one capacitor. Two pairs of external contacts are arranged such that one external contact in each pair of external contacts is located on a side of the foundation and such that connections between each pair of external contacts overlap. A first pair of the external contacts connects to the first type of electrode layer and a second pair of the external contacts connects to the second type of electrode layer. The first type of electrode layer includes a first conductive layer which connects to at least one of the first pair of external contacts and the second type of electrode layer includes a second conductive layer which connects to at least one of the second pair of external contacts.Type: GrantFiled: December 6, 2001Date of Patent: February 1, 2005Assignee: EPCOS AGInventors: Günter Engel, Günther Greier, Walter Wittmer
-
Patent number: 6847517Abstract: A polarizable electrode for an electric double layer capacitor includes an activated carbon powder, and a binder material mixed with the activated carbon. The amount of water contained in the polarizable electrode is 1500 ppm or less with respect to the weight of the polarizable electrode.Type: GrantFiled: November 26, 2003Date of Patent: January 25, 2005Assignee: Honda Motor Co., Ltd.Inventors: Manabu Iwaida, Shigeki Oyama, Kenichi Murakami
-
Patent number: 6847518Abstract: A membrane electrode assembly for a polymer electrolyte fuel cell has a polymer electrolyte membrane, an anode, and a cathode having a catalytic layer and a diffusion layer. The alloy catalyst contains ruthenium in the anode diffusion layer. The assembly has less loss of efficiency, particularly when operated at high potentials.Type: GrantFiled: December 2, 2003Date of Patent: January 25, 2005Assignees: Honda Motor Co., Ltd., Tanaka Kikinzoku Kogyo K.K.Inventors: Kaoru Fukuda, Masaki Tani, Hayato Kaji, Shigeru Inai, Takeshi Muro, Shinya Watanabe, Tomoyuki Tada, Masahiko Inoue
-
Patent number: 6846116Abstract: A sensor head includes a first substrate provided with a light emitting element and a light detecting element, a one-piece optical structure body on a second substrate, the optical structure body having optical elements for converging incident light in a direction parallel to a surface of the second substrate and for converging an outgoing beam from the light emitting element and a light beam reflected by an object in the direction parallel to the surface of the second substrate, and lenses for converging incident light in a direction perpendicular to the surface of the second substrate and for converging the outgoing beam from the light emitting element and the light beam reflected by the object in the direction perpendicular to the surface of the second substrate, respectively.Type: GrantFiled: December 11, 2000Date of Patent: January 25, 2005Assignees: Mitsubishi Denki Kabushiki Kaisha, Forschungszentrum Karlsruhe GmbHInventors: Toru Oka, Hajime Nakajima, Masahiro Shikai, Akihide Shiratsuki, Jurgen Mohr, Ulrike Wallrabe, Uwe Hollenbach
-
Patent number: 6845003Abstract: A metal collector foil for an electric double layer capacitor is an etched metal collector foil having an oxide film in an amount of not greater than 300 mg/m2, and a capacitance per unit surface area of not less than 150 ?F/cm2. The etched metal collector foil is free from a dielectric layer formed by an anodic formation process on a surface of the etched metal collector foil. A method of producing the metal collector foil and an electric double layer capacitor incorporating therein the metal collector foil are also disclosed.Type: GrantFiled: December 1, 2003Date of Patent: January 18, 2005Assignees: Honda Motor Co., Ltd., Nippon Chemi-Con CorporationInventors: Shigeki Oyama, Manabu Iwaida, Kenichi Murakami, Hiroto Kobayashi, Koichi Yoshida, Hiroyuki Saito
-
Patent number: 6842328Abstract: An electrode for a capacitor includes a substrate comprising at least one of glassy carbon and a metal. According to various embodiments, the substrate may be provided as glassy carbon or any of a variety of metals for use in capacitors. The capacitor also includes an activated carbon material adjacent the substrate. The activated carbon layer includes oxygen-containing functional groups. A material is provided in contact with the activated carbon layer for providing enhanced capacitance for the electrode. Various types of capacitance-enhancing materials may be utilized, including carbon nanotubes and conductive metal oxides.Type: GrantFiled: May 30, 2003Date of Patent: January 11, 2005Inventors: Joachim Hossick Schott, Brian Melody, John Tony Kinard, John Norton, Mark Viste, Anthony Rorvick, Christian Nielsen
-
Patent number: 6842329Abstract: A ceramic mass has a phase-heterogeneous ceramic of m weight percent of a phase composed of BaNd2Ti4O12 with negative temperature coefficient of the dielectric constant and 100-m weight percent of a phase composed of Nd2Ti2O7 with positive temperature coefficient of the dielectric constant, with m having a value of 50<m<70, and an additive of glass frit that contains ZnO, B2O3 and SiO2 and whose weight amounts to between 3 and 10 weight percent of the ceramic. The ceramic mass is used to construct a multi-layer capacitor with copper electrodes.Type: GrantFiled: May 8, 2001Date of Patent: January 11, 2005Assignee: Epcos AGInventors: Adalbert Feltz, Peter Sedlmaier
-
Patent number: 6839220Abstract: A multi-layer barrier for a ferroelectric capacitor includes an outdiffusion barrier layer permeable to both hydrogen and oxygen. The outdiffusion barrier layer covers the ferroelectric of the capacitor. Oxygen passes through the outdiffusion barrier layer into the ferroelectric during an oxygen anneal in order to repair damage to the ferroelectric caused during etching. The outdiffusion barrier layer reduces the decomposition of the ferroelectric by blocking molecules leaving the ferroelectric during the oxygen anneal. The multi-layer barrier also includes a hydrogen barrier layer deposited on the outdiffusion barrier layer after repair of the ferroelectric by the oxygen anneal. The hydrogen barrier layer allows the multi-layer barrier to block the passage of hydrogen into the ferroelectric during back-end processes.Type: GrantFiled: July 18, 2003Date of Patent: January 4, 2005Assignee: Infineon Technologies AGInventors: Andreas Hilliger, Jingyu Lian, Nicolas Nagel, Rainer Bruchhaus, Stefan Gernhardt, Uwe Wellhausen, Bum-Ki Moon, Karl Hornik
-
Patent number: 6839218Abstract: The present invention relates to a radial-type ceramic electronic component that can prevent cracking in the ceramic substrate and detachment of the terminal electrodes due to the contractile stresses in the solder. A ceramic electronic component element 1 is equipped with terminal electrodes 11 and 12 on either end of a ceramic substrate 10. A pair of lead wires 2 and 3 are soldered to the terminal electrodes 11 and 12. The support parts 2B and 3B of the lead wires 2 and 3 are bent from the soldering parts 2A and 3A in a direction away from the terminal electrodes 11 and 12.Type: GrantFiled: August 16, 2002Date of Patent: January 4, 2005Assignee: TDK CorporationInventors: Kazuharu Satoh, Toshiki Otsuki, Yutaka Miura, Akitoshi Yoshii, Takashi Kamiya