Patents by Inventor Koji Suga

Koji Suga 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).

  • Engine generator
    Patent number: D503381
    Type: Grant
    Filed: July 21, 2003
    Date of Patent: March 29, 2005
    Assignee: Denyo Co., Ltd.
    Inventors: Hiroshi Mizokami, Koji Suga
  • Engine-driven welding machine
    Patent number: D475726
    Type: Grant
    Filed: August 2, 2002
    Date of Patent: June 10, 2003
    Assignee: Denyo Co., Ltd.
    Inventors: Koji Suga, Sanpei Sato, Kenji Katsuki, Toshiaki Tanaka, Shoichi Fujimoto