Patents by Inventor Manabu Kawada

Manabu Kawada 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).

  • Combined speaker box and amplifier
    Patent number: D371365
    Type: Grant
    Filed: April 28, 1995
    Date of Patent: July 2, 1996
    Assignee: Yamaha Corporation
    Inventor: Manabu Kawada
  • Musical tone control apparatus
    Patent number: D375115
    Type: Grant
    Filed: April 28, 1995
    Date of Patent: October 29, 1996
    Assignee: Yamaha Corporation
    Inventor: Manabu Kawada
  • Musical tone generator
    Patent number: D376365
    Type: Grant
    Filed: July 7, 1995
    Date of Patent: December 10, 1996
    Assignee: Yamaha Corporation
    Inventor: Manabu Kawada