Patents by Inventor Keisuke Okugawa

Keisuke Okugawa 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: 10354904
    Abstract: An electrostatic chuck includes: a body substrate having a substrate front surface and a substrate rear surface and made of ceramic; an attraction electrode provided in the body substrate; a metal base having a base front surface and a base rear surface, and placed such that the base front surface faces the substrate rear surface of the body substrate; and an internal through hole formed so as to penetrate the base front surface and the base rear surface of the metal base. The body substrate has a plurality of heating regions in each of which a heater electrode is provided. In the internal through hole, a plurality of heater electrode terminals are provided which are electrically connected to the heater electrode in each heating region. The plurality of heater electrode terminals provided in the internal through hole are electrically connected to a connection member provided in the internal through hole.
    Type: Grant
    Filed: October 7, 2015
    Date of Patent: July 16, 2019
    Assignee: NGK SPARK PLUG CO., LTD.
    Inventors: Keisuke Okugawa, Yosuke Shinozaki, Toshihisa Nomura
  • Publication number: 20160126125
    Abstract: An electrostatic chuck includes: a body substrate having a substrate front surface and a substrate rear surface and made of ceramic; an attraction electrode provided in the body substrate; a metal base having a base front surface and a base rear surface, and placed such that the base front surface faces the substrate rear surface of the body substrate; and an internal through hole formed so as to penetrate the base front surface and the base rear surface of the metal base. The body substrate has a plurality of heating regions in each of which a heater electrode is provided. In the internal through hole, a plurality of heater electrode terminals are provided which are electrically connected to the heater electrode in each heating region. The plurality of heater electrode terminals provided in the internal through hole are electrically connected to a connection member provided in the internal through hole.
    Type: Application
    Filed: October 7, 2015
    Publication date: May 5, 2016
    Inventors: Keisuke OKUGAWA, Yosuke SHINOZAKI, Toshihisa NOMURA
  • Patent number: D489739
    Type: Grant
    Filed: June 20, 2003
    Date of Patent: May 11, 2004
    Assignee: NGK Spark Plug Co., Ltd.
    Inventor: Keisuke Okugawa
  • Patent number: D489740
    Type: Grant
    Filed: June 20, 2003
    Date of Patent: May 11, 2004
    Assignee: NGK Spark Plug Co., Ltd.
    Inventor: Keisuke Okugawa
  • Patent number: D490093
    Type: Grant
    Filed: June 20, 2003
    Date of Patent: May 18, 2004
    Assignee: NGK Spark Plug Co., Ltd.
    Inventor: Keisuke Okugawa
  • Patent number: D490094
    Type: Grant
    Filed: June 20, 2003
    Date of Patent: May 18, 2004
    Assignee: NGK Spark Plug Co., Ltd.
    Inventor: Keisuke Okugawa
  • Patent number: D490095
    Type: Grant
    Filed: June 20, 2003
    Date of Patent: May 18, 2004
    Assignee: NGK Spark Plug Co., Ltd.
    Inventor: Keisuke Okugawa
  • Patent number: D490096
    Type: Grant
    Filed: June 20, 2003
    Date of Patent: May 18, 2004
    Assignee: NGK Spark Plug Co., Ltd.
    Inventor: Keisuke Okugawa
  • Patent number: D490827
    Type: Grant
    Filed: June 20, 2003
    Date of Patent: June 1, 2004
    Assignee: NGK Spark Plug Co., Ltd.
    Inventor: Keisuke Okugawa
  • Patent number: D491206
    Type: Grant
    Filed: June 20, 2003
    Date of Patent: June 8, 2004
    Assignee: NGK Spark Plug Co., Ltd.
    Inventor: Keisuke Okugawa
  • Patent number: D497171
    Type: Grant
    Filed: June 20, 2003
    Date of Patent: October 12, 2004
    Assignee: NGK Spark Plug Co., Ltd.
    Inventor: Keisuke Okugawa