TREA

Yoshimasa Koizumi

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  • Kobe, JP
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Patents Grantslast 30 patents

  • Information Patent Grant

    Three-piece solid golf ball
    • Patent number RE38589
    • Issue date Sep 14, 2004
    • Sumitomo Rubber Industries, Ltd.
    • Hidenori Hiraoka
    • 473 - Games using tangible projectile
  • Information Patent Grant

    Golf ball
    • Patent number 6,525,124
    • Issue date Feb 25, 2003
    • Hidenori Hiraoka
    • A63 - SPORTS GAMES AMUSEMENTS
  • Information Patent Grant

    Three-piece solid golf ball
    • Patent number 5,935,022
    • Issue date Aug 10, 1999
    • Sumitomo Rubber Industries, Ltd.
    • Kazushige Sugimoto
    • A63 - SPORTS GAMES AMUSEMENTS
  • Information Patent Grant

    Golf ball
    • Patent number 5,780,169
    • Issue date Jul 14, 1998
    • Sumitomo Rubber Industries, Ltd.
    • Hidenori Hiraoka
    • A63 - SPORTS GAMES AMUSEMENTS
  • Information Patent Grant

    Three-piece solid golf ball
    • Patent number 5,711,723
    • Issue date Jan 27, 1998
    • Sumitomo Rubber Industries, Ltd.
    • Hidenori Hiraoka
    • A63 - SPORTS GAMES AMUSEMENTS
  • Information Patent Grant

    Three-piece solid golf ball
    • Patent number 5,601,502
    • Issue date Feb 11, 1997
    • Sumitomo Rubber Industries, Ltd.
    • Hidenori Hiraoka
    • C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
  • Information Patent Grant

    Solid golf ball
    • Patent number 5,589,546
    • Issue date Dec 31, 1996
    • Sumitomo Rubber Industries, Ltd.
    • Hidenori Hiraoka
    • C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
  • Information Patent Grant

    Solid golf ball
    • Patent number 5,574,107
    • Issue date Nov 12, 1996
    • Sumitomo Rubber Industries, Ltd.
    • Hidenori Hiraoka
    • C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
  • Information Patent Grant

    Thread rubber for thread wound golf ball
    • Patent number 5,518,815
    • Issue date May 21, 1996
    • Sumitomo Rubber Industries, Ltd.
    • Yoshimasa Koizumi
    • A63 - SPORTS GAMES AMUSEMENTS
  • Information Patent Grant

    Three-piece solid golf ball
    • Patent number 5,490,674
    • Issue date Feb 13, 1996
    • Sumitomo Rubber Industries, Ltd.
    • Akihiko Hamada
    • C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
  • Information Patent Grant

    Three-piece solid golf ball
    • Patent number 5,482,285
    • Issue date Jan 9, 1996
    • Sumitomo Rubber Industries, Ltd.
    • Yoshikazu Yabuki
    • C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...