Patents by Inventor Ryouichi Sasaoka

Ryouichi Sasaoka 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).

  • Digital audio player
    Patent number: D561735
    Type: Grant
    Filed: July 25, 2007
    Date of Patent: February 12, 2008
    Assignee: Kowa Company, Ltd.
    Inventors: Yuji Nagura, Mamoru Ueda, Kennosuke Chujo, Ryouichi Sasaoka, Eisuke Nakao
  • Telescope
    Patent number: D594493
    Type: Grant
    Filed: August 8, 2007
    Date of Patent: June 16, 2009
    Assignee: Kowa Company, Ltd
    Inventors: Kennosuke Chujo, Ryouichi Sasaoka
  • Telescope
    Patent number: D594494
    Type: Grant
    Filed: August 8, 2007
    Date of Patent: June 16, 2009
    Assignee: Kowa Company, Ltd
    Inventors: Kennosuke Chujo, Ryouichi Sasaoka