Patents by Inventor Kunio Takeyama

Kunio Takeyama 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).

  • Patent number: D304172
    Type: Grant
    Filed: July 22, 1987
    Date of Patent: October 24, 1989
    Assignee: Sony Corporation
    Inventors: Takashi Sogabe, Kunio Takeyama