Patents by Inventor Takefumi Daidoh

Takefumi Daidoh 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).

  • Headphone
    Patent number: D300133
    Type: Grant
    Filed: July 23, 1985
    Date of Patent: March 7, 1989
    Assignee: Sony Corporation
    Inventors: Takefumi Daidoh, Kaoru Sumita
  • Combined earphone and remote controller
    Patent number: D334043
    Type: Grant
    Filed: May 1, 1990
    Date of Patent: March 16, 1993
    Assignee: Sony Corporation
    Inventors: Shuhei Taniguchi, Kazue Katoh, Takefumi Daidoh