Patents by Inventor Kazumasa Beppu

Kazumasa Beppu 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).

  • Patent number: 7857707
    Abstract: A golf club which helps master a proper swing path is provided. A golf club includes a hollow shaft; a club head at a tip portion of the shaft; a grip at a base end portion of the shaft; and a balance-shifting unit which increases a swing balance of the golf club. The balance-shifting unit includes a partitioning portion which divides an inside space of the shaft into a first portion on the base end portion side and a second portion on the tip portion side; and a balancing material. The partitioning portion includes a first shifter portion which allows the balancing material held in the first portion to move to the second portion side in association with a swing; and a second shifter portion which allows the balancing material on the second portion side to return to the first portion. The golf club further includes a balance holder.
    Type: Grant
    Filed: March 23, 2007
    Date of Patent: December 28, 2010
    Inventor: Kazumasa Beppu
  • Publication number: 20090149269
    Abstract: There is provided a golf club which helps master a proper swing path easily without too much burden while hitting balls. A golf club 10 includes a hollow shaft 14; a club head 20 provided at a tip portion 16 of the shaft 14; a grip 24 provided at an base end portion 22 of the shaft 14; and balance-shifting means 26 which increases a swing balance of the golf club 10 in association with a swing of the golf club 10. The balance-shifting means 26 includes a partitioning portion 32 which divides an inside space of the shaft 14 into a first portion 28 on the tip portion 16 side and a second portion 30 on the base end portion 22 side; and a balancing material 34. The partitioning portion 32 includes a first shifter portion 46 which allows the balancing material 34 held in the first portion 28 to move to the second portion 30 side in association with a swing of the golf club 10; and a second shifter portion 48 which allows the balancing material 34 on the second portion 30 side to return to the first portion 28.
    Type: Application
    Filed: March 23, 2007
    Publication date: June 11, 2009
    Inventor: Kazumasa Beppu