Patents by Inventor Keita Shirakami

Keita Shirakami 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).

  • Audio cassette tape case
    Patent number: D386915
    Type: Grant
    Filed: September 4, 1996
    Date of Patent: December 2, 1997
    Assignee: Sony Kabushiki Kaisha
    Inventors: Keita Shirakami, Kazushi Kirihara
  • Audio cassette tape case
    Patent number: D417091
    Type: Grant
    Filed: December 19, 1996
    Date of Patent: November 30, 1999
    Assignee: Sony Kabushiki Kaisha
    Inventors: Keita Shirakami, Kazushi Kirihara