Patents by Inventor Shizuka Ishida

Shizuka Ishida 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).

  • Lighting fixture
    Patent number: D639488
    Type: Grant
    Filed: December 13, 2010
    Date of Patent: June 7, 2011
    Assignees: Toshiba Lighting & Technology Corporation, Kabushiki Kaisha Toshiba
    Inventors: Kazufumi Yoshida, Junichiro Yamamoto, Shizuka Ishida
  • Lighting fixture
    Patent number: D652562
    Type: Grant
    Filed: February 23, 2011
    Date of Patent: January 17, 2012
    Assignees: Toshiba Lighting & Technology Corporation, Kabushiki Kaisha Toshiba
    Inventors: Kazufumi Yoshida, Junichiro Yamamoto, Shizuka Ishida