Patents by Inventor Katsutoshi Takatoi

Katsutoshi Takatoi 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 player with guitar effects
    Patent number: D638029
    Type: Grant
    Filed: February 5, 2010
    Date of Patent: May 17, 2011
    Assignee: Roland Corporation
    Inventors: Tetsuya Uesugi, Katsutoshi Takatoi, Akio Shindate, Matthew Gardiner