Patents by Inventor Takeshi Naruo

Takeshi Naruo 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).

  • Metal golf club head
    Publication number: 20010000337
    Abstract: In the metal iron golf club head (1), the rigidity of the medium sensitivity region (5) which is a region on the heel side and excluding the vicinity of the face center (3) is made lower than the rigidity of the low sensitivity region (4) so as to approximate the natural frequency of the metal iron golf club head to the natural frequency of the ball as well as to ensure the strength in the face portion (2).
    Type: Application
    Filed: December 1, 2000
    Publication date: April 19, 2001
    Applicant: Mizuno Corporation
    Inventors: Takeshi Naruo, Koji Sakai, Yoshihiro Fujikawa
  • Shaft selection aiding apparatus for selecting optimum shaft for a golfer
    Patent number: 6041651
    Abstract: A high speed camera takes an image in the vicinity of a ball 3 and a club head 12, while a high speed camera 5 takes an image in the vicinity of the top of the swing of a golfer 1, and the images are recorded in a high speed video tape recorder 6. The recorded images are reproduced, swing time, a swing speed and a head speed are detected using a personal computer 15, and a shaft with an optimum flex for the golfer is selected based on the swing time, the swing speed, the swing time and the head speed, or the swing speed and the head speed.
    Type: Grant
    Filed: September 26, 1997
    Date of Patent: March 28, 2000
    Assignee: Mizuno Corporation
    Inventors: Takeshi Naruo, Takeshi Saito, Shuichi Noguchi
  • Shaft selection aiding apparatus for selecting optimum shaft for a golfer
    Patent number: 6014887
    Abstract: A high speed camera takes an image in the vicinity of a ball 3 and a club head 12, while a high speed camera 5 takes an image in the vicinity of the top of the swing of a golfer 1, and the images are recorded in a high speed video tape recorder 6. The recorded images are reproduced, swing time, a swing speed and a head speed are detected using a personal computer 15, and a shaft with an optimum flex for the golfer is selected based on the swing time, the swing speed, the swing time and the head speed, or the swing speed and the head speed.
    Type: Grant
    Filed: November 12, 1997
    Date of Patent: January 18, 2000
    Assignee: Mizuno Corporation
    Inventors: Takeshi Naruo, Takeshi Saito, Shuichi Noguchi
  • Shaft selection aiding apparatus for selecting optimum shaft for a golfer
    Patent number: 6003368
    Abstract: A high speed camera takes an image in the vicinity of a ball 3 and a club head 12, while a high speed camera 5 takes an image in the vicinity of the top of the swing of a golfer 1, and the images are recorded in a high speed video tape recorder 6. The recorded images are reproduced, swing time, a swing speed and a head speed are detected using a personal computer 15, and a shaft with an optimum flex for the golfer is selected based on the swing time, the swing speed, the swing time and the head speed, or the swing speed and the head speed.
    Type: Grant
    Filed: November 12, 1997
    Date of Patent: December 21, 1999
    Assignee: Mizuno Corporation
    Inventors: Takeshi Naruo, Takeshi Saito, Shuichi Noguchi
  • Shift selection aiding apparatus for selecting optimum shaft for a golfer
    Patent number: 6000286
    Abstract: A high speed camera takes an image in the vicinity of a ball 3 and a club head 12, while a high speed camera 5 takes an image in the vicinity of the top of the swing of a golfer 1, and the images are recorded in a high speed video tape recorder 6. The recorded images are reproduced, swing time, a swing speed and a head speed are detected using a personal computer 15, and a shaft with an optimum flex for the golfer is selected based on the swing time, the swing speed, the swing time and the head speed, or the swing speed and the head speed.
    Type: Grant
    Filed: November 12, 1997
    Date of Patent: December 14, 1999
    Assignee: Mizuno Corporation
    Inventors: Takeshi Naruo, Takeshi Saito, Shuichi Noguchi
  • Shaft selection aiding apparatus for selecting optimum shaft for a golfer
    Patent number: 5821417
    Abstract: A high speed camera takes an image in the vicinity of a ball 3 and a club head 12, while a high speed camera 5 takes an image in the vicinity of the top of the swing of a golfer 1, and the images are recorded in a high speed video tape recorder 6. The recorded images are reproduced, swing time, a swing speed and a head speed are detected using a personal computer 15, and a shaft with an optimum flex for the golfer is selected based on the swing time, the swing speed, the swing time and the head speed, or the swing speed and the head speed.
    Type: Grant
    Filed: June 14, 1996
    Date of Patent: October 13, 1998
    Assignee: Mizuno Corporation
    Inventors: Takeshi Naruo, Takeshi Saito, Shuichi Noguchi