TREA

Takeshi Iwanaga

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  • Kobe, JP
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Patents Grantslast 30 patents

  • Information Patent Grant

    Iron (club) set
    • Patent number 5,413,336
    • Issue date May 9, 1995
    • Sumitomo Rubber Industries, Ltd.
    • Takeshi Iwanaga
    • A63 - SPORTS GAMES AMUSEMENTS
  • Information Patent Grant

    Golf club head
    • Patent number 5,411,255
    • Issue date May 2, 1995
    • Sumitomo Rubber Industries, Ltd.
    • Takao Kurashima
    • A63 - SPORTS GAMES AMUSEMENTS
  • Information Patent Grant

    Golf club shaft
    • Patent number 5,294,118
    • Issue date Mar 15, 1994
    • Sumitomo Rubber Industries, Ltd.
    • Takeshi Iwanaga
    • A63 - SPORTS GAMES AMUSEMENTS
  • Information Patent Grant

    Golf club set
    • Patent number 5,192,073
    • Issue date Mar 9, 1993
    • Sumitomo Rubber Industries, Ltd.
    • Takeshi Iwanaga
    • A63 - SPORTS GAMES AMUSEMENTS
  • Information Patent Grant

    Iron gold club head and method of producing the same
    • Patent number 5,004,242
    • Issue date Apr 2, 1991
    • Sumitomo Rubber Industries, Ltd.
    • Takeshi Iwanaga
    • A63 - SPORTS GAMES AMUSEMENTS
  • Information Patent Grant

    Iron type golf club head
    • Patent number 4,792,140
    • Issue date Dec 20, 1988
    • Sumitomo Rubber Industries, Ltd.
    • Tetsuo Yamaguchi
    • A63 - SPORTS GAMES AMUSEMENTS
  • Information Patent Grant

    Set of golf clubs
    • Patent number 4,725,060
    • Issue date Feb 16, 1988
    • Sumitomo Rubber Industries, Inc.
    • Takeshi Iwanaga
    • A63 - SPORTS GAMES AMUSEMENTS