Patents by Inventor Kouji Shiga

Kouji Shiga 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).

  • Shaft for golf club
    Patent number: 8206238
    Abstract: A shaft for a golf club comprises a plurality of fiber-reinforced resin layers. A plurality of circumferentially oriented metal wires are provided at intervals of 1 mm to 4 mm in an axial direction of the shaft having a length in an axial direction of more than 100 mm and less than 300 mm and being centered at a position of 3.25×102 mm from a larger-diameter end of the shaft.
    Type: Grant
    Filed: September 10, 2008
    Date of Patent: June 26, 2012
    Assignee: MRC Composite Products Co., Ltd.
    Inventors: Takashi Kaneko, Kouji Shiga, Tetsuya Atsumi, Tsutomu Ibuki
  • SHAFT FOR GOLF CLUB
    Publication number: 20100323810
    Abstract: A shaft for a golf club comprises a plurality of fiber-reinforced resin layers. A plurality of circumferentially oriented metal wires are provided at intervals of 1 mm to 4 mm in an axial direction of the shaft having a length in an axial direction of more than 100 mm and less than 300 mm and being centered at a position of 3.25×102 mm from a larger-diameter end of the shaft.
    Type: Application
    Filed: September 10, 2008
    Publication date: December 23, 2010
    Applicant: MRC COMPOSITE PRODUCTS CO., LTD.,
    Inventors: Takashi Kaneko, Kouji Shiga, Tetsuya Atsumi, Tsutomu Ibuki
  • Golf club shaft
    Patent number: D596254
    Type: Grant
    Filed: March 10, 2008
    Date of Patent: July 14, 2009
    Assignee: MRC Composite Product Co., Ltd.
    Inventors: Kouji Shiga, Tetsuya Atsumi, Takashi Kaneko, Tsutomu Ibuki
  • Golf club shaft
    Patent number: D602107
    Type: Grant
    Filed: March 10, 2008
    Date of Patent: October 13, 2009
    Assignee: MRC Composite Product Co., Ltd.
    Inventors: Kouji Shiga, Tetsuya Atsumi, Takashi Kaneko, Tsutomu Ibuki
  • Golf club shaft
    Patent number: D699801
    Type: Grant
    Filed: August 31, 2012
    Date of Patent: February 18, 2014
    Assignee: Mitsubishi Rayon Co., Ltd.
    Inventors: Akinari Ito, Kouji Shiga, Toshio Ninomiya