Patents by Inventor Akihiko Ishizuka

Akihiko Ishizuka 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).

  • Ultrasound diagnostic instrument
    Patent number: D354353
    Type: Grant
    Filed: August 13, 1993
    Date of Patent: January 10, 1995
    Assignee: Fujitsu Limited
    Inventors: Akihiko Ishizuka, Hiroyuki Fujita, Nobushi Iwashita
  • Display device
    Patent number: D394089
    Type: Grant
    Filed: August 16, 1996
    Date of Patent: May 5, 1998
    Assignees: Fujitsu General Limited, Fujitsu Limited
    Inventors: Kazuo Kawasaki, Akira Hashimoto, Katsuhiko Hayashi, Akihiko Ishizuka, Hidefumi Yamaguchi, Takashi Ifuji
  • Display device
    Patent number: D395453
    Type: Grant
    Filed: August 16, 1996
    Date of Patent: June 23, 1998
    Assignees: Fujitsu General Limited, Fujitsu Limited
    Inventors: Kazuo Kawasaki, Akira Hashimoto, Katsuhiko Hayashi, Akihiko Ishizuka, Hidefumi Yamaguchi, Takashi Ifuji
  • Personal computer
    Patent number: D411180
    Type: Grant
    Filed: May 26, 1998
    Date of Patent: June 22, 1999
    Assignee: Fujitsu Limited
    Inventors: Sohrab Vossoughi, Akihiko Ishizuka