Patents by Inventor Kazuhito Kikuchi

Kazuhito Kikuchi has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 8206467
    Abstract: A method includes the following steps: forming a porous anode body using powder of valve metal or an alloy thereof; forming a dielectric layer on the surface of the anode body; soaking the anode body having the dielectric layer in a liquid containing a conductive-polymer monomer, thereby making the monomer adhere to the dielectric layer of the anode body; forming a first conductive polymer layer by soaking the anode body having the monomer adhered thereto in an oxidizing agent solution, thereby polymerizing the monomer by liquid-phase chemical polymerization; forming a second conductive polymer layer by bringing the conductive-polymer monomer into contact with the surface of the anode body having the first conductive polymer layer in a gas phase, thereby polymerizing the monomer by gas-phase chemical polymerization; and forming a third conductive polymer layer by soaking the anode body having the second conductive polymer layer in a liquid containing a monomer of a conductive polymer layer, thereby polymerizi
    Type: Grant
    Filed: March 22, 2011
    Date of Patent: June 26, 2012
    Assignee: Sanyo Electric Co., Ltd.
    Inventors: Hiroki Hayashi, Mutsumi Yano, Yasumi Kobayashi, Kazuhiro Takatani, Kazuhito Kikuchi
  • Patent number: 8098484
    Abstract: Solid electrolytic capacitors are provided with decreased equivalent series resistance (ESR). The solid electrolytic capacitors include: an anode containing a valve metal or an alloy that is mainly made of a valve metal; a dielectric layer formed on a surface of the anode; an electrolyte layer formed on the dielectric layer; a carbon layer formed on the electrolyte layer; and a silver paste layer formed on the carbon layer, wherein the silver paste layer contains a nonionic surfactant.
    Type: Grant
    Filed: December 18, 2008
    Date of Patent: January 17, 2012
    Assignee: Sanyo Electric Co., Ltd.
    Inventors: Kazuhito Kikuchi, Mutsumi Yano, Takashi Umemoto, Hiroshi Nonoue
  • Publication number: 20110232056
    Abstract: A method includes the following steps: forming a porous anode body using powder of valve metal or an alloy thereof; forming a dielectric layer on the surface of the anode body; soaking the anode body having the dielectric layer in a liquid containing a conductive-polymer monomer, thereby making the monomer adhere to the dielectric layer of the anode body; forming a first conductive polymer layer by soaking the anode body having the monomer adhered thereto in an oxidizing agent solution, thereby polymerizing the monomer by liquid-phase chemical polymerization; forming a second conductive polymer layer by bringing the conductive-polymer monomer into contact with the surface of the anode body having the first conductive polymer layer in a gas phase, thereby polymerizing the monomer by gas-phase chemical polymerization; and forming a third conductive polymer layer by soaking the anode body having the second conductive polymer layer in a liquid containing a monomer of a conductive polymer layer, thereby polymerizi
    Type: Application
    Filed: March 22, 2011
    Publication date: September 29, 2011
    Applicant: SANYO ELECTRIC CO., LTD.
    Inventors: Hiroki HAYASHI, Mutsumi YANO, Yasumi KOBAYASHI, Kazuhiro TAKATANI, Kazuhito KIKUCHI
  • Patent number: 8027151
    Abstract: An aspect of the invention provides a solid electrolytic capacitor that comprises: an anode formed of a valve metal or an alloy mainly made of a valve metal; a dielectric layer formed on a surface of the anode; a first conducting polymer layer formed on the dielectric layer, the first conducting polymer layer containing a non-ionic surfactant; a second conducting polymer layer formed on the first conducting polymer layer; and a cathode layer formed on the second conducting polymer layer.
    Type: Grant
    Filed: November 18, 2008
    Date of Patent: September 27, 2011
    Assignee: Sanyo Electric Co., Ltd.
    Inventors: Kazuhito Kikuchi, Kazuhiro Takatani, Mutsumi Yano, Takashi Umemoto, Hiroshi Nonoue
  • Publication number: 20100053848
    Abstract: A niobium solid electrolytic capacitor comprises: an anode mainly made of niobium and containing nitrogen and at least one kind of alloying element whose hardness is higher than that of niobium; a dielectric layer provided on a surface of the anode and containing nitrogen; an electrolyte layer provided on the dielectric layer and formed of a conductive polymer; and a cathode layer provided on the electrolyte layer. The electrolyte layer has a three-layered structure formed of a first electrolyte layer, a second electrolyte layer, and a third electrolyte layer, which are arranged in this order between the dielectric layer to the cathode layer. The second electrolyte layer and the third electrolyte layer contain alkyl substituted aromatic sulfonate. Conductivities of the respective electrolyte layers increase in order of the first electrolyte layer, the second electrolyte layer, and the third electrolyte layer.
    Type: Application
    Filed: August 27, 2009
    Publication date: March 4, 2010
    Applicant: SANYO ELECTRIC CO., LTD
    Inventors: Kazuhito Kikuchi, Mutsumi Yano, Kazuhiro Takatani, Hiroshi Nonoue
  • Publication number: 20090190287
    Abstract: A solid electrolytic capacitor in which the withstand voltage can be enhanced and a manufacturing method thereof are provided. A mixed powder is prepared by mixing a first powder containing at least one selected from the group consisting of a valve metal, an alloy of a valve metal, a metal oxide of a valve metal, and a metal nitride of a valve metal and a second powder containing a metal oxide different from the first powder. An anode is made by sintering the mixed powder. A dielectric layer is formed on a surface of the anode, and a cathode is formed on the dielectric layer.
    Type: Application
    Filed: January 26, 2009
    Publication date: July 30, 2009
    Applicant: SANYO ELECTRIC CO., LTD.
    Inventors: Kazuhiro TAKATANI, Kazuhito Kikuchi, Mutsumi Yano, Takashi Umemoto, Hiroshi Nonoue
  • Publication number: 20090161297
    Abstract: Solid electrolytic capacitors are provided with decreased equivalent series resistance (ESR). The solid electrolytic capacitors include: an anode containing a valve metal or an alloy that is mainly made of a valve metal; a dielectric layer formed on a surface of the anode; an electrolyte layer formed on the dielectric layer; a carbon layer formed on the electrolyte layer; and a silver paste layer formed on the carbon layer, wherein the silver paste layer contains a nonionic surfactant.
    Type: Application
    Filed: December 18, 2008
    Publication date: June 25, 2009
    Applicant: SANYO ELECTRIC CO., LTD.
    Inventors: Kazuhito KIKUCHI, Mutsumi Yano, Takashi Umemoto, Hiroshi Nonoue
  • Publication number: 20090128997
    Abstract: An aspect of the invention provides a solid electrolytic capacitor that comprises: an anode formed of a valve metal or an alloy mainly made of a valve metal; a dielectric layer formed on a surface of the anode; a first conducting polymer layer formed on the dielectric layer, the first conducting polymer layer containing a non-ionic surfactant; a second conducting polymer layer formed on the first conducting polymer layer; and a cathode layer formed on the second conducting polymer layer.
    Type: Application
    Filed: November 18, 2008
    Publication date: May 21, 2009
    Applicant: SANYO ELECTRIC CO., LTD.
    Inventors: Kazuhito Kikuchi, Kazuhiro Takatani, Mutsumi Yano, Takashi Umemoto, Hiroshi Nonoue
  • Patent number: 6041414
    Abstract: A plurality of output terminals from which the power from an uninterruptible power supply apparatus is supplied. A timing holding unit holds timing information of power supply start and/or stop of respective ones of the plurality of output terminals, the timing information being set independently for each one of the plurality of output terminals. A timing pulse generating unit generates timing pulses which are used for reading out the timing information from the timing holding unit. Power supply start and/or stop of each output terminal is performed based on the timing information read out from the timing holding unit.
    Type: Grant
    Filed: June 6, 1997
    Date of Patent: March 21, 2000
    Assignee: Fujitsu Limited
    Inventor: Kazuhito Kikuchi