Patents by Inventor Kazutoshi Yanai

Kazutoshi Yanai 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).

  • Aluminum electrolytic capacitor and process of producing the same
    Patent number: 6711000
    Abstract: There is provided an aluminum electrolytic capacitor including a hollow capacitor element composed of an anode foil, a cathode foil each with an extracted lead member connected thereto, and a separator between both the foil wound into a coil, an end face of the cathode foil is projected relative to the corresponding face of the anode foil; a elastic sheet which is wound on the periphery of the capacitor element; a cylindrical metallic case having the bottom in which a fixing rod is projected on the center of the bottom for fitting into a hollow hole part of the capacitor element and one or more fixing ribs are provided on the bottom for abutting with the projected end face of the cathode foil; and a sealing plate for covering the upper opening of the metal case which has a pair of terminals formed passing through the sealing plate for connecting to extracted lead member of the capacitor element and a threaded portion for external connection; wherein the metal case has one or more annular extrusions projected
    Type: Grant
    Filed: December 4, 2002
    Date of Patent: March 23, 2004
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventors: Nobuhiro Takeishi, Hiroyuki Kusaka, Kazutoshi Yanai, Kazuhiro Minami, Toshiyuki Hata
  • Aluminum electrolytic capacitor and process of producing the same
    Publication number: 20030117762
    Abstract: There is provided an aluminum electrolytic capacitor including a hollow capacitor element composed of an anode foil, a cathode foil each with an extracted lead member connected thereto, and a separator between both the foil wound into a coil, an end face of the cathode foil is projected relative to the corresponding face of the anode foil; a elastic sheet which is wound on the periphery of the capacitor element; a cylindrical metallic case having the bottom in which a fixing rod is projected on the center of the bottom for fitting into a hollow hole part of the capacitor element and one or more fixing ribs are provided on the bottom for abutting with the projected end face of the cathode foil; and a sealing plate for covering the upper opening of the metal case which has a pair of terminals formed passing through the sealing plate for connecting to extracted lead member of the capacitor element and a threaded portion for external connection; wherein the metal case has one or more annular extrusions projected
    Type: Application
    Filed: December 4, 2002
    Publication date: June 26, 2003
    Inventors: Nobuhiro Takeishi, Hiroyuki Kusaka, Kazutoshi Yanai, Kazuhiro Minami, Toshiyuki Hata