Patents by Inventor Hiroya Ishigaki

Hiroya Ishigaki 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).

  • Tablet cutting machine
    Patent number: D475794
    Type: Grant
    Filed: March 12, 2002
    Date of Patent: June 10, 2003
    Assignee: Sanyo Electric Co., Ltd.
    Inventors: Hiroya Ishigaki, Masatoshi Okuda, Norioki Fujimoto, Tetsuo Sakurai, Koji Ono, Motohiko Kosano
  • Air conditioner
    Patent number: D417724
    Type: Grant
    Filed: January 15, 1998
    Date of Patent: December 14, 1999
    Assignee: Sanyo Electric Co., Ltd.
    Inventors: Yoshimi Okamoto, Hiroya Ishigaki, Toru Fujisawa, Hiroshi Oya, Hideki Oba
  • AC/DC converter
    Patent number: D423452
    Type: Grant
    Filed: August 24, 1999
    Date of Patent: April 25, 2000
    Assignee: Sanyo Electric Co., Ltd.
    Inventors: Toru Fujisawa, Yoshimi Okamoto, Hiroya Ishigaki, Hideki Oba, Hiroshi Oya
  • Air conditioner
    Patent number: D433492
    Type: Grant
    Filed: February 3, 2000
    Date of Patent: November 7, 2000
    Assignee: Sanyo Electric Co., Ltd.
    Inventors: Hiroshi Oya, Yoshimi Okamoto, Hiroya Ishigaki, Toru Fujisawa, Hideki Oba, Akira Otsuki