Patents by Inventor Ryuichi Tsukita

Ryuichi Tsukita 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).

  • Hard plate for spiked track shoes
    Patent number: 5752332
    Abstract: A hard plate of spike shoes for track races comprises a plurality of small projections or small holes on an anterior forefoot portion in at least half the forefoot portion, and a plurality of large projections greater than said small projections or small holes on a posterior forefoot portion.
    Type: Grant
    Filed: September 4, 1996
    Date of Patent: May 19, 1998
    Assignee: Asics Corporation
    Inventors: Akira Kataoka, Masanobu Inohara, Ryuichi Tsukita, Toshio Suma, Kiyohiro Saito
  • Hard plate for spiked track shoes
    Patent number: 5689904
    Abstract: A hard plate of spike shoes for track races comprises a plurality of small projections or small holes on an anterior forefoot portion in at least half the forefoot portion, and a plurality of large projections greater than said small projections or small holes on a posterior forefoot portion.
    Type: Grant
    Filed: September 4, 1996
    Date of Patent: November 25, 1997
    Assignee: Asics Corporation
    Inventors: Akira Kataoka, Masanobu Inohara, Ryuichi Tsukita, Toshio Suma, Kiyohiro Saito
  • Hard plate for spiked track shoes
    Patent number: 5581913
    Abstract: A hard plate of spike shoes for track races comprises a plurality of small projections or small holes on an anterior forefoot portion in at least half the forefoot portion, and a plurality of large projections greater than said small projections or small holes on a posterior forefoot portion.
    Type: Grant
    Filed: June 6, 1995
    Date of Patent: December 10, 1996
    Assignee: Asics Corporation
    Inventors: Akira Kataoka, Masanobu Inohara, Ryuichi Tsukita, Toshio Suma, Kiyohiro Saito
  • Hard plate for spiked track shoes
    Patent number: 5483760
    Abstract: A hard plate of spike shoes for track races comprises a plurality of small projections or small holes on an anterior forefoot portion in at least half the forefoot portion, and a plurality of large projections greater than said small projections or small holes on a posterior forefoot portion.
    Type: Grant
    Filed: December 22, 1994
    Date of Patent: January 16, 1996
    Assignee: ASICS Corporation
    Inventors: Akira Kataoka, Masanobu Inohara, Ryuichi Tsukita, Toshio Suma, Kiyohiro Saito