Patents by Inventor Tomoaki Ida

Tomoaki Ida 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).

  • Electronic keyboard musical instrument
    Patent number: D345370
    Type: Grant
    Filed: June 9, 1992
    Date of Patent: March 22, 1994
    Assignee: Yamaha Corporation
    Inventors: Mitsuru Miyamoto, Tomoaki Ida
  • Electronic piano
    Patent number: D345372
    Type: Grant
    Filed: December 22, 1992
    Date of Patent: March 22, 1994
    Assignee: Yamaha Corporation
    Inventor: Tomoaki Ida