Patents by Inventor Masaki Shiragami

Masaki Shiragami 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).

  • Solid electrolytic capacitor and method of manufacturing the capacitor
    Patent number: 6678149
    Abstract: A capacitor element includes an anode body made of valve metal having a substantially-rectangular shape and having positive and negative portions separated in a first direction parallel to a short side of the rectangular shape, a dielectric oxide layer over the negative portion, a solid electrolyte layer over the dielectric oxide layer, and a negative electrode layer over the solid electrolyte layer.
    Type: Grant
    Filed: January 28, 2003
    Date of Patent: January 13, 2004
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventors: Koji Matsumoto, Masaki Shiragami, Koichi Kojima, Tsuyoshi Yoshino
  • Solid electrolytic capacitor and method of manufacturing the capacitor
    Publication number: 20030184955
    Abstract: A capacitor element includes an anode body made of valve metal having a substantially-rectangular shape and having positive and negative portions separated in a first direction parallel to a short side of the rectangular shape, a dielectric oxide layer over the negative portion, a solid electrolyte layer over the dielectric oxide layer, and a negative electrode layer over the solid electrolyte layer.
    Type: Application
    Filed: January 28, 2003
    Publication date: October 2, 2003
    Inventors: Koji Matsumoto, Masaki Shiragami, Koichi Kojima, Tsuyoshi Yoshino
  • Apparatus for manufacturing solid electrolytic capacitor
    Patent number: 6491733
    Abstract: An apparatus for manufacturing a solid electrolytic capacitor includes an anodization part, a polymerization part, a cathode layer formation part, an assembly part, and a molding part. The polymerization part includes a plurality of polymerization baths of a substantially same structure and a conveyance mechanism. In addition the plurality of polymerization baths are placed around the conveyance mechanism within a conveyance range.
    Type: Grant
    Filed: January 25, 2001
    Date of Patent: December 10, 2002
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventors: Mitsuo Terada, Motonobu Ueno, Masaki Shiragami
  • Apparatus for manufacturing solid electrolytic capacitor
    Publication number: 20010011635
    Abstract: An apparatus for manufacturing a solid electrolytic capacitor includes an anodization part, a polymerization part, a cathode layer formation part, an assembly part, and a molding part. The polymerization part includes a plurality of polymerization baths of a substantially same structure and a conveyance mechanism. In addition the plurality of polymerization baths are placed around the conveyance mechanism within a conveyance range.
    Type: Application
    Filed: January 25, 2001
    Publication date: August 9, 2001
    Inventors: Mitsuo Terada, Motonobu Ueno, Masaki Shiragami
  • Chip type solid electrolytic capacitor
    Patent number: 6081418
    Abstract: Two elements of chip type solid electrolytic capacitors, having substantially the same bottom size and shaped into rectangles and are arranged on a stack corresponding terminals of the two elements are welded using a coupling member. Because of the stacked relation of the capacitors, the capacitance can be enhanced without increasing the mounting space therefor.
    Type: Grant
    Filed: June 23, 1998
    Date of Patent: June 27, 2000
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventors: Kenji Kuranuki, Masaki Shiragami