Patents by Inventor Takenori Ohmachi

Takenori Ohmachi 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).

  • Speaker for headphone
    Patent number: D769219
    Type: Grant
    Filed: July 16, 2015
    Date of Patent: October 18, 2016
    Assignee: YAMAHA CORPORATION
    Inventor: Takenori Ohmachi
  • Headphone
    Patent number: D795218
    Type: Grant
    Filed: February 4, 2016
    Date of Patent: August 22, 2017
    Assignee: YAMAHA CORPORATION
    Inventor: Takenori Ohmachi
  • Speaker
    Patent number: D807325
    Type: Grant
    Filed: July 13, 2016
    Date of Patent: January 9, 2018
    Assignee: Yamaha Corporation
    Inventor: Takenori Ohmachi
  • Audio amplifier
    Patent number: D810044
    Type: Grant
    Filed: February 18, 2016
    Date of Patent: February 13, 2018
    Assignee: YAMAHA CORPORATION
    Inventor: Takenori Ohmachi
  • Headphone
    Patent number: D821353
    Type: Grant
    Filed: April 3, 2017
    Date of Patent: June 26, 2018
    Assignee: YAMAHA CORPORATION
    Inventor: Takenori Ohmachi
  • Headphone
    Patent number: D821354
    Type: Grant
    Filed: April 3, 2017
    Date of Patent: June 26, 2018
    Assignee: YAMAHA CORPORATION
    Inventor: Takenori Ohmachi
  • Speaker mounting tool
    Patent number: D838689
    Type: Grant
    Filed: July 13, 2016
    Date of Patent: January 22, 2019
    Assignee: YAMAHA CORPORATION
    Inventor: Takenori Ohmachi
  • Electronic keyboard
    Patent number: D889532
    Type: Grant
    Filed: June 7, 2019
    Date of Patent: July 7, 2020
    Assignee: YAMAHA CORPORATION
    Inventor: Takenori Ohmachi
  • Electronic keyboard
    Patent number: D889533
    Type: Grant
    Filed: June 7, 2019
    Date of Patent: July 7, 2020
    Assignee: YAMAHA CORPORATION
    Inventor: Takenori Ohmachi
  • Amplifier
    Patent number: D902171
    Type: Grant
    Filed: May 30, 2019
    Date of Patent: November 17, 2020
    Assignee: YAMAHA CORPORATION
    Inventor: Takenori Ohmachi
  • Headphone
    Patent number: D905003
    Type: Grant
    Filed: May 30, 2019
    Date of Patent: December 15, 2020
    Assignee: YAMAHA CORPORATION
    Inventor: Takenori Ohmachi
  • Guitar
    Patent number: D998032
    Type: Grant
    Filed: April 14, 2021
    Date of Patent: September 5, 2023
    Assignee: YAMAHA CORPORATION
    Inventor: Takenori Ohmachi