Patents by Inventor Takeshi Matumaru

Takeshi Matumaru 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: D256690
    Type: Grant
    Filed: September 19, 1977
    Date of Patent: September 2, 1980
    Assignee: Nippon Columbia Co. Ltd.
    Inventor: Takeshi Matumaru