Patents by Inventor Yasutoshi Okamoto

Yasutoshi Okamoto 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).

  • Refrigerator
    Patent number: D440987
    Type: Grant
    Filed: February 25, 2000
    Date of Patent: April 24, 2001
    Assignee: Sanyo Electric Co., Ltd.
    Inventors: Yasutoshi Okamoto, Akihiro Mochizuki
  • Automatic tablet bottling machine
    Patent number: D447073
    Type: Grant
    Filed: October 26, 2000
    Date of Patent: August 28, 2001
    Assignee: Sanyo Electric Co., Ltd.
    Inventors: Yasutoshi Okamoto, Akihiro Mochizuki
  • Automatic tablet bottling machine
    Patent number: D454313
    Type: Grant
    Filed: February 22, 2001
    Date of Patent: March 12, 2002
    Assignee: Sanyo Electric Co., Ltd.
    Inventors: Yasutoshi Okamoto, Akihiro Mochizuki
  • Constant temperature cultivating apparatus
    Patent number: D463297
    Type: Grant
    Filed: February 28, 2001
    Date of Patent: September 24, 2002
    Assignee: Sanyo Electric Co., Ltd.
    Inventors: Yasutoshi Okamoto, Akihiro Mochizuki
  • Wheelchair
    Patent number: D484832
    Type: Grant
    Filed: February 27, 2003
    Date of Patent: January 6, 2004
    Assignees: Sanyo Electric Co., Ltd., Sanyo Electric Techno Clean Co., Ltd.
    Inventors: Yasutoshi Okamoto, Yasuhiro Matsusaki, Shinji Oda, Masatoshi Okuda, Kiyohiko Utagawa
  • Medication dispenser
    Patent number: D386259
    Type: Grant
    Filed: April 19, 1996
    Date of Patent: November 11, 1997
    Assignee: Sanyo Electric Co., Limited
    Inventors: Yukou Hayashi, Yasutoshi Okamoto, Tateki Aihara