Patents by Inventor Tetsuya Kanayama

Tetsuya Kanayama 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).

  • GOLF CLUB HEAD AND GOLF CLUBS
    Publication number: 20110009209
    Abstract: A golf club head of the wood-type, including: a body defining an interior cavity and including a ball-striking face, a sole, a crown, and a ribbon extending rearwardly from the face; an elongated groove that extends along a portion of the ribbon; a weight slidably disposed in the elongated grove; and a fastener affixed to the weight capable of selectively fixing a location of the weight. Other aspects, features, and embodiments are also claimed and described.
    Type: Application
    Filed: November 1, 2009
    Publication date: January 13, 2011
    Applicant: Mizuno USA
    Inventors: DAVID LLEWELLYN, Tetsuya Kanayama, Masao Nagai
  • IRON GOLF CLUB HEADS AND GOLF CLUB SETS WITH VARIABLE WEIGHT DISTRIBUTION
    Publication number: 20100167834
    Abstract: Described herein are iron golf club heads and sets of iron golf clubs that have variable weight distribution. Each iron golf club head has a cavity and a groove with a raised portion disposed therein. The groove and the raised portion can deepen the center of mass depth and lengthen the effective face length of the iron golf club. The width of the groove may vary between each golf club in a set of iron golf clubs, such that the width of the groove of the long irons is greater that the width of the groove of the middle irons, and the width of the groove of the middle irons is greater than the width of the optional groove of the short irons. Other aspects, embodiments, and features are also claimed and discussed.
    Type: Application
    Filed: June 26, 2009
    Publication date: July 1, 2010
    Applicant: MIZUNO USA, INC.
    Inventors: David Llewellyn, Tetsuya Kanayama, Kazuhiro Doi
  • IRON GOLF CLUB HEADS AND GOLF CLUB SETS WITH VARIABLE WEIGHT DISTRIBUTION
    Publication number: 20100160067
    Abstract: Described herein are iron golf club heads and sets of iron golf clubs that have variable weight distribution. Each iron golf club head has a cavity and a y-shaped cavity pad disposed on at least a portion of a back wall of the cavity. The y-shaped cavity pad provide reduced vibrations within the cavity when the iron golf club head strikes a golf ball. The y-shaped cavity pad also provides an enlarged sweet spot to provide increased forgiveness for off-center hits. Other aspects, features, and embodiments are also claimed and described.
    Type: Application
    Filed: June 26, 2009
    Publication date: June 24, 2010
    Applicant: MIZUNO USA, INC
    Inventors: DAVID LLEWELLYN, Tetsuya Kanayama, Isamu Toshinari, Kazuhiro Doi, Tomoaki Aoki
  • Golf club head and golf club
    Patent number: 7611424
    Abstract: A golf club head of the wood-type, including: a body defining an interior cavity and including a ball-striking face, a sole, a crown, and a ribbon extending rearwardly from the face; an elongated groove that extends along a portion of the ribbon; a weight slidably disposed in the elongated grove; and a fastener affixed to the weight capable of selectively fixing a location of the weight.
    Type: Grant
    Filed: February 12, 2007
    Date of Patent: November 3, 2009
    Assignee: Mizuno USA, Inc.
    Inventors: Masao Nagai, David Llewellyn, Tetsuya Kanayama
  • Back design for an iron golf club head
    Patent number: D600766
    Type: Grant
    Filed: December 24, 2008
    Date of Patent: September 22, 2009
    Assignee: Mizuno USA, Inc.
    Inventors: David Llewellyn, Tetsuya Kanayama
  • 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
  • Fairway wood-type golf club head
    Patent number: D618295
    Type: Grant
    Filed: July 7, 2009
    Date of Patent: June 22, 2010
    Assignee: Mizuno USA, Inc.
    Inventors: David Llewellyn, Tetsuya Kanayama, Mamoru Saraie