Patents by Inventor Kengo Hakamada

Kengo Hakamada 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).

  • Ceiling light
    Patent number: D569025
    Type: Grant
    Filed: August 23, 2007
    Date of Patent: May 13, 2008
    Assignee: Sugatsune Kogyo Co., Ltd.
    Inventor: Kengo Hakamada
  • Wall light
    Patent number: D569027
    Type: Grant
    Filed: August 28, 2007
    Date of Patent: May 13, 2008
    Assignee: Sugatsune Kogyo Co., Ltd.
    Inventor: Kengo Hakamada