Patents by Inventor Tsugunobo Sakamoto

Tsugunobo Sakamoto 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).

  • Back design for an iron golf club head
    Patent number: D611554
    Type: Grant
    Filed: May 4, 2009
    Date of Patent: March 9, 2010
    Assignee: Mizuno USA, Inc.
    Inventors: David Llewellyn, Tetsuya Kanayama, Tsugunobo Sakamoto, Tomoaki Aoki
  • Driver-type golf club head
    Patent number: D617403
    Type: Grant
    Filed: July 7, 2009
    Date of Patent: June 8, 2010
    Assignee: Mizuno USA, Inc.
    Inventors: David Llewellyn, Tsugunobo Sakamoto, Tetsuya Kanayama, Mamoru Saraie
  • Driver-type golf club head
    Patent number: D617858
    Type: Grant
    Filed: July 7, 2009
    Date of Patent: June 15, 2010
    Assignee: Mizuno USA, Inc.
    Inventors: David Llewellyn, Tsugunobo Sakamoto, Tetsuya Kanayama