Patents by Inventor Takeshi Washizawa

Takeshi Washizawa 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).

  • Controller for a digital audio player
    Patent number: D806058
    Type: Grant
    Filed: September 7, 2016
    Date of Patent: December 26, 2017
    Assignee: Roland Corporation
    Inventors: Akihito Kimura, Kenichiro Nishi, Takeshi Washizawa
  • Controller for a digital audio player
    Patent number: D813842
    Type: Grant
    Filed: September 7, 2016
    Date of Patent: March 27, 2018
    Assignee: Roland Corporation
    Inventors: Akihito Kimura, Kenichiro Nishi, Takeshi Washizawa