Patents Assigned to NEC Tokin Corporation
  • Patent number: 9205178
    Abstract: A Ti—Ni—Nb alloy device is provided which is a shape memory device excellent in response characteristics. The Ti—Ni—Nb alloy device is made of a Ti—Ni—Nb alloy which finishes transformation at a temperature lower than 10° C. after start of reverse transformation.
    Type: Grant
    Filed: May 23, 2006
    Date of Patent: December 8, 2015
    Assignees: NEC TOKIN CORPORATION, TOHOKU UNIVERSITY
    Inventors: Michihide Ozawa, Kiyoshi Yamauchi, Yuji Sutou, Takamitsu Takagi, Shuzou Yamashita, Kouji Mori
  • Patent number: 9183990
    Abstract: Provided is an electroconductive polymer composition with a good film forming property. Also, provided is an electroconductive polymer material with a high electroconductivity and a high transparency as well as an electroconductive substrate having the electroconductive polymer material on a substrate, and an electrode. Further, provided is an electronic device having the electrode as well as a solid electrolytic capacitor with a high capacitance and a low ESR. Disclosed is an electroconductive polymer composition, containing an electroconductive polymer in which a dopant is doped, a water-soluble polymer resin, and a solvent which contains water and an organic solvent whose dielectric constant is higher than that of water.
    Type: Grant
    Filed: December 7, 2012
    Date of Patent: November 10, 2015
    Assignee: NEC Tokin Corporation
    Inventors: Tomoki Nobuta, Yasuhisa Sugawara, Satoshi Suzuki, Yasuhiro Tomioka
  • Publication number: 20150303363
    Abstract: An object of the present invention is to provide a thermoelectric conversion element that can demonstrate satisfactory thermoelectric conversion performance, and also has flexibility or can be mounted on a surface having irregularities or a curved surface, a method of manufacturing such a thermoelectric conversion element, and a method of using such a thermoelectric conversion element. A thermoelectric conversion element according to the present invention includes a columnar crystal ferrite layer and an electromotive film formed on the columnar crystal ferrite layer. The electromotive film is configured to generate an electromotive force in an in-plane direction by an inverse spin Hall effect. Columnar crystal grains of the columnar crystal ferrite layer include a major axis a of not less than 200 nm and a minor axis b of not more than 500 nm where a>b.
    Type: Application
    Filed: October 11, 2013
    Publication date: October 22, 2015
    Applicants: NEC CORPORATION, NEC TOKIN CORPORATION
    Inventors: Akihiro KIRIHARA, Masahiko ISHIDA, Shigeru KOUMOTO, Koichi KONDO, Naoharu YAMAMOTO
  • Publication number: 20150280429
    Abstract: A communication apparatus includes: a communication antenna, a communication unit which can transmit and receive signals, a switch connected between the communication antenna and the communication unit and composed of a semiconductor switch, a switch control unit, and a high-voltage output means. The switch, when receiving a connection command signal causes the communication unit to be electrically connected with the communication antenna, and when not receiving the signal cuts them off. The switch control unit outputs the signal to the switch under prescribed conditions, and stops the signal when overvoltage applied to the communication unit is detected. The high-voltage output means, connected between the switch control unit and the switch, sets voltage of the signal received from the switch control unit to a voltage at which the communication unit in a transmitting mode would not be cut off from the communication antenna, and outputs the voltage to the switch.
    Type: Application
    Filed: February 7, 2014
    Publication date: October 1, 2015
    Applicant: NEC TOKIN CORPORATION
    Inventors: Kazumasa Makita, Junetsu Urata, Yuichi Sakurai, Koji Sato, Masashi Mori, Masaki Kurimoto
  • Publication number: 20150235764
    Abstract: A fabrication method for fabricating a magnetic film provided body includes preparing a base body and forming a magnetic film on the base body. The magnetic film includes organic film(s) and ferrite film(s) alternately layered. The formation of the magnetic film alternately includes forming a ferrite film through a ferrite plating method, the ferrite film having a thickness of 20 ?m or less and forming an organic film having a thickness of 0.1 ?m to 20 ?m, both inclusive, and a ratio t/E of 0.025 ?m/GPa or more, where “t” indicates the thickness of the organic film while “E” indicates Young's modulus of the organic film.
    Type: Application
    Filed: May 5, 2015
    Publication date: August 20, 2015
    Applicant: NEC Tokin Corporation
    Inventors: Koichi KONDO, Hiroshi ONO, Yukihiro NUMATA
  • Publication number: 20150235753
    Abstract: A sheet-shaped inductor includes a magnetic core and a coil. First and second via holes respectively pass through, in a lamination direction, two surfaces facing each other of the magnetic core. The coil includes first and second via conductors having end portions respectively protruding to the outside from the first and second via holes, and first and second surface conductors joined to both ends of the first and second via conductors via plug portions. The magnetic core is composed of a sheet obtained by molding a mixture containing a soft magnetic flat metal powder and a binder so that the soft magnetic flat metal powder is oriented in a flat plane formed by the inductor, or is composed of a plurality of such sheets laminated and pressed in a lamination direction. A laminated substrate embedded type inductor is configured so that a magnetic core is embedded in a laminated substrate.
    Type: Application
    Filed: September 10, 2013
    Publication date: August 20, 2015
    Applicant: NEC TOKIN CORPORATION
    Inventors: Kenichi Chatani, Naoharu Yamamoto, Shigeyoshi Yoshida
  • Patent number: 9105399
    Abstract: A solid electrolytic capacitor according to an aspect of the present invention includes an anode conductor including a porous valve metal body, a dielectric layer formed on a surface of the anode conductor, and a solid electrolyte layer including a conductive polymer layer formed on a surface of the dielectric layer, in which the solid electrolyte layer includes a first solid electrolyte layer formed on a surface of the dielectric layer, and a second solid electrolyte layer formed on a surface of the first solid electrolyte layer, and at least one continuous or discontinuous layer containing an amine compound exists between the first and second solid electrolyte layers, and inside the second solid electrolyte layer.
    Type: Grant
    Filed: November 19, 2013
    Date of Patent: August 11, 2015
    Assignee: NEC TOKIN CORPORATION
    Inventors: Masanori Takahashi, Satoshi Iwai, Masami Ishijima
  • Patent number: 9097581
    Abstract: While conductive adhesives 60 are provided between element electrodes of a pyroelectric element 10 and board electrodes of an installation board 20, the conductive adhesives 60 are hardened to connect between the element electrodes of the pyroelectric element 10 and the board electrodes of the installation board 20. The conductive adhesives 60 include epoxy resin and, after hardened, have 4B to 7H, both inclusive, of pencil hardness as their hardness on JIS K 5600-5-4 (ISO 15184) standard basis. If the pyroelectric element 10 is broken down, the hardened conductive adhesives 60 are impacted or are cut by using a cutter to take off the pyroelectric element 10 from the installation board 20.
    Type: Grant
    Filed: September 20, 2011
    Date of Patent: August 4, 2015
    Assignee: NEC TOKIN CORPORATION
    Inventor: Shigemi Fujiwara
  • Publication number: 20150213961
    Abstract: An outer insulation member made of a first resin packs a part of an anode terminal. The packed part of the anode terminal has a predetermined section. All surfaces of the predetermined section consist of a front surface, a back surface and edges connecting between the front surface and the back surface. The front surface includes a connection area. An anode lead wire is connected to the connection area while being not connected to the anode terminal other than the connection area. The all surfaces of the predetermined section are completely covered with a mask layer made of a second resin except for the connection area. The second resin is different from the first resin in at least one of composition thereof, content of an inclusion, size of an inclusion and shape of an inclusion.
    Type: Application
    Filed: January 29, 2014
    Publication date: July 30, 2015
    Applicants: NEC TOKIN CORPORATION, Kemet Electronics Corporation
    Inventors: Yanming Liu, Yuji Yoshida, Hayato Ueda, Daisuke Takada, Satoshi Iwai, Takashi Mizukoshi
  • Patent number: 9087640
    Abstract: Provided are an electroconductive polymer suspension solution and a method for producing the same, which has excellent adhesion to a substrate and excellent liquid resistance and which can provide an organic material having high electroconductivity. An electroconductive polymer suspension solution of an exemplary embodiment of the invention contains an electroconductive polymer, at least one kind of a water-soluble polyhydric alcohol, and at least one kind of a water-soluble organic substance having two or more functional groups which can be polycondensed with the water-soluble polyhydric alcohol.
    Type: Grant
    Filed: April 8, 2011
    Date of Patent: July 21, 2015
    Assignee: NEC Tokin Corporation
    Inventors: Yasuhisa Sugawara, Tomoki Nobuta, Naoki Takahashi, Yuji Yoshida, Satoshi Suzuki, Yasuhiro Tomioka
  • Patent number: 9076590
    Abstract: The present invention provides an electroconductive polymer suspension solution and an electroconductive polymer material which has a high electroconductivity and in which the time-related deterioration of the electroconductivity is suppressed. Also, the present invention provides an electrolytic capacitor with a low ESR using the electroconductive polymer material as a solid electrolyte and a method for producing the same. In the present invention, electroconductive polymer particles 1 in the electroconductive polymer material are bonded via organic dispersant 2 and cross-linker 3 to obtain a strong bond between electroconductive polymer particles 1.
    Type: Grant
    Filed: February 22, 2013
    Date of Patent: July 7, 2015
    Assignee: NEC Tokin Corporation
    Inventors: Yasuhisa Sugawara, Tomoki Nobuta, Satoshi Suzuki, Yasuhiro Tomioka, Hiroyuki Demizu, Hiroki Satoh
  • Publication number: 20150163598
    Abstract: A piezoelectric vibration module includes a piezoelectric element, a wiring member connected to the piezoelectric element and drawn out to the outside, and an elastic plate bonded to one surface of the piezoelectric element, wherein the elastic plate is made of a silicone rubber.
    Type: Application
    Filed: July 13, 2012
    Publication date: June 11, 2015
    Applicant: NEC TOKIN CORPORATION
    Inventors: Yoshiyuki Abe, Takeshi Mizuno, Hiroshi Shima, Masao Yamaguchi, Noriaki Ikezawa, Katsunori Kumasaka
  • Patent number: 9048024
    Abstract: The present invention provides a solid electrolytic capacitor and a method producing the same, in which high reliability is realized and further in which the product yield is improved by suppressing the increase of ESR or the like. In the present invention, the electroconductive polymer layer includes first electroconductive polymer layer 3 and second electroconductive polymer layer 10, in which first electroconductive polymer layer 3 covers the surface of dielectric polymer 2, and the second electroconductive polymer layer is provided on a surface of first electroconductive polymer layer 3 covering the bottom surface and the side surfaces, and is provide with opening at least a part of the leading surface of first electroconductive polymer layer 3.
    Type: Grant
    Filed: September 13, 2012
    Date of Patent: June 2, 2015
    Assignee: NEC Tokin Corporation
    Inventors: Masanori Takahashi, Satoshi Iwai
  • Patent number: 9016127
    Abstract: A piezoelectric acceleration sensor comprises a piezoelectric element, a metallic sheet and a circuit board. The piezoelectric element is polarized in a predetermined direction. The circuit board includes a circuit portion and a roughly flat shaped base portion. The base portion protrudes from an end portion of the circuit portion. One of surfaces of the metallic sheet is fixed to and supported by a surface of the base portion. The piezoelectric element is fixed to and supported by a remaining one of the surfaces of the metallic sheet in a manner that the piezoelectric element and the base portion do not overlap each other in the predetermined direction.
    Type: Grant
    Filed: September 28, 2010
    Date of Patent: April 28, 2015
    Assignee: NEC Tokin Corporation
    Inventor: Masuto Saito
  • Patent number: 9007743
    Abstract: Provided is a solid electrolytic capacitor that is excellent in productivity, has improved volumetric efficiency aiming for capacity increase, a stable fillet shape when mounted, and has excellent ESL characteristics. Included is a capacitor stack element composed of a stack of capacitor elements. The capacitor element includes one anode part of an anode body made of linear, foil-like, or plate-like valve metal and a cathode part composed of dielectric, solid electrolyte, graphite, and silver paste layers, which are sequentially formed to another surface of the anode body separated by insulating resin. A fillet formation part with a recessed part is provided to an end surface of anode and cathode terminals of a mounting electrode side of a first direction end surface of the electrode substrate to which the capacitor stack element is mounted. Further, the anode and cathode terminals for element connection reach the end surface of the first direction.
    Type: Grant
    Filed: April 13, 2012
    Date of Patent: April 14, 2015
    Assignee: Nec Tokin Corporation
    Inventors: Akihiro Kawai, Kenji Araki
  • Publication number: 20150053859
    Abstract: A pyroelectric-type infrared sensor is provided with: a sensor element; a shield case for covering the sensor element; an infrared transmission filter; an output circuit, which performs impedance conversion to output signals of the sensor element and outputs the signals; and at least one reflecting film. In the pyroelectric-type infrared sensor, the at least one reflecting film, which reflects infrared, is provided between the infrared transmission filter attached to the shield case and surface electrodes, and the infrared transmission filter is disposed extremely close to the surface electrodes.
    Type: Application
    Filed: July 11, 2012
    Publication date: February 26, 2015
    Applicant: NEC TOKIN CORPORATION
    Inventor: Masahiro Saito
  • Patent number: 8940191
    Abstract: The present invention provides an electroconductive polymer solution in which the good dispersibility is maintained and the pH is arbitrarily adjusted, and an electroconductive polymer composition having an excellent heat resistance. Further, the present invention provides a solid electrolytic capacitor having an excellent reliability. The present invention is an electroconductive polymer solution, containing an electroconductive polymer in which a dopant is doped, a first compound having an amino group and a hydroxyl group, a second compound having a carboxylic acid group, and a dispersing medium.
    Type: Grant
    Filed: February 27, 2013
    Date of Patent: January 27, 2015
    Assignee: NEC Tokin Corporation
    Inventors: Tomoki Nobuta, Yasuhisa Sugawara, Satoshi Suzuki, Yasuhiro Tomioka
  • Patent number: 8896407
    Abstract: An inductor comprises a magnetic core and a coil. The magnetic core has a wound portion around which the coil is wound, and a peripheral portion. The magnetic core is formed from two or more preliminarily-formed-bodies which are pressure-molded in a state where the coil winds one or more preliminarily-formed-bodies which form the wound portion. The preliminarily-formed-bodies include at least one preliminarily-formed-body which forms the peripheral portion while not form the wound portion. Each of the preliminarily-formed-bodies is made of a mixture of flat magnetic powders and an organic binder so as to have a plate-like shape. The flat magnetic powders are oriented so as to be parallel to the preliminarily-formed-body.
    Type: Grant
    Filed: November 14, 2012
    Date of Patent: November 25, 2014
    Assignee: NEC TOKIN Corporation
    Inventors: Kenichi Chatani, Naoharu Yamamoto
  • Patent number: 8816809
    Abstract: A reactor is disclosed. The reactor is comprised of a housing, a solenoid coil, a center columnar member, and a core. The center columnar member provides first surfaces contacting with sandwich portions of the housing, and the core is comprised of resin including magnetic powder. The coil and the center columnar member are fixed in the core. A surface roughness (Rz2) of a second surface which contacts to the core is larger than a surface roughness (Rz1) of the first surfaces. The center columnar member further provides a basis surface of which roughness (Rz3) is smaller than the Rz2 and larger than the Rz1.
    Type: Grant
    Filed: July 27, 2012
    Date of Patent: August 26, 2014
    Assignees: Denso Corporation, Nec Tokin Corporation
    Inventors: Kazuhiro Kosaka, Ryota Tanabe, Souichi Yoshinaga, Masahiko Yamashita, Seigo Satou, Mitsutoshi Kameda, Tsugio Takeda
  • Patent number: 8803647
    Abstract: A reactor is provided with a coil, a core, and a case. The coil generates magnetic flux in response to supply of current thereto. The core is made of magnetic powder-containing resin filled in spaces inside and outside of the core. The case accommodates therein the coil and the core. The reactor is also provided with a cooling pipe (cooling member), which is arranged to be in contact with the core. A power converter is provided with semiconductor modules, a cooler, and the reactor. In the power converter, the cooler is arranged partially being in contact with the core of the reactor.
    Type: Grant
    Filed: May 16, 2007
    Date of Patent: August 12, 2014
    Assignees: Denso Corporation, NEC Tokin Corporation
    Inventors: Kenji Saka, Kazuhiro Kosaka, Akira Nakasaka