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Yuichi Aizawa

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Patents Grantslast 30 patents

  • Information Patent Grant

    Golf club head and method of manufacturing the same
    • Patent number 5,868,635
    • Issue date Feb 9, 1999
    • Daiwa Seiko
    • Yuichi Aizawa
    • B22 - CASTING POWDER METALLURGY
  • Information Patent Grant

    Golf club head and method of manufacturing the same
    • Patent number 5,816,936
    • Issue date Oct 6, 1998
    • Daiwa Seiko, Inc.
    • Yuichi Aizawa
    • A63 - SPORTS GAMES AMUSEMENTS
  • Information Patent Grant

    Golf club head
    • Patent number 5,697,855
    • Issue date Dec 16, 1997
    • Daiwa Seiko, Inc.
    • Yuichi Aizawa
    • A63 - SPORTS GAMES AMUSEMENTS
  • Information Patent Grant

    Golf club head and method of manufacturing the same
    • Patent number 5,697,854
    • Issue date Dec 16, 1997
    • Daiwa Seiko, Inc.
    • Yuichi Aizawa
    • B22 - CASTING POWDER METALLURGY
  • Information Patent Grant

    Hollow cylindrical member
    • Patent number 5,686,155
    • Issue date Nov 11, 1997
    • Daiwa Seiko, Inc.
    • Hiroyasu Suzue
    • B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
  • Information Patent Grant

    Iron club and iron club set
    • Patent number 5,669,824
    • Issue date Sep 23, 1997
    • Daiwa Seiko, Inc.
    • Yuichi Aizawa
    • A63 - SPORTS GAMES AMUSEMENTS
  • Information Patent Grant

    Hollow cylindricall member
    • Patent number 5,665,441
    • Issue date Sep 9, 1997
    • Daiwa Seiko, Inc.
    • Hiroyasu Suzue
    • B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
  • Information Patent Grant

    Golf club head
    • Patent number 5,658,207
    • Issue date Aug 19, 1997
    • Daiwa Seiko, Inc.
    • Yuichi Aizawa
    • A63 - SPORTS GAMES AMUSEMENTS
  • Information Patent Grant

    Golf club set
    • Patent number 5,643,103
    • Issue date Jul 1, 1997
    • Daiwa Seiko, Inc.
    • Yuichi Aizawa
    • A63 - SPORTS GAMES AMUSEMENTS
  • Information Patent Grant

    Golf club head
    • Patent number 5,616,088
    • Issue date Apr 1, 1997
    • Daiwa Seiko, Inc.
    • Yuichi Aizawa
    • A63 - SPORTS GAMES AMUSEMENTS
  • Information Patent Grant

    Hollow club head with sole plate support structure
    • Patent number 5,586,949
    • Issue date Dec 24, 1996
    • Daiwa Seiko, Inc.
    • Yuichi Aizawa
    • A63 - SPORTS GAMES AMUSEMENTS
  • Information Patent Grant

    Golf club head
    • Patent number 5,547,194
    • Issue date Aug 20, 1996
    • Daiwa Seiko, Inc.
    • Yuichi Aizawa
    • A63 - SPORTS GAMES AMUSEMENTS
  • Information Patent Grant

    Golf club head and striking face
    • Patent number 5,472,201
    • Issue date Dec 5, 1995
    • Daiwa Golf Co., Ltd.
    • Yuichi Aizawa
    • A63 - SPORTS GAMES AMUSEMENTS
  • Information Patent Grant

    Golf clubhead having beryllium face plate
    • Patent number 5,465,968
    • Issue date Nov 14, 1995
    • Daiwa Golf Co., Ltd.
    • Yuichi Aizawa
    • A63 - SPORTS GAMES AMUSEMENTS
  • Information Patent Grant

    Golf club head
    • Patent number 5,348,302
    • Issue date Sep 20, 1994
    • Daiwa Golf Co., Ltd.
    • Akinori Sasamoto
    • A63 - SPORTS GAMES AMUSEMENTS
  • Information Patent Grant

    Golf club head
    • Patent number 5,346,216
    • Issue date Sep 13, 1994
    • Daiwa Golf Co., Ltd.
    • Yuichi Aizawa
    • A63 - SPORTS GAMES AMUSEMENTS
  • Information Patent Grant

    Thiazolidine compounds containing a quinone group, their preparatio...
    • Patent number 5,338,855
    • Issue date Aug 16, 1994
    • Sankyo Company, Limited
    • Takao Yoshioka
    • A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
  • Information Patent Grant

    Golf club head
    • Patent number 5,242,168
    • Issue date Sep 7, 1993
    • Daiwa Golf Co., Ltd.
    • Yuichi Aizawa
    • A63 - SPORTS GAMES AMUSEMENTS
  • Information Patent Grant

    Golf club head
    • Patent number 5,207,428
    • Issue date May 4, 1993
    • Daiwa Golf Co., Ltd.
    • Yuichi Aizawa
    • A63 - SPORTS GAMES AMUSEMENTS
  • Information Patent Grant

    Golf club head
    • Patent number 5,078,397
    • Issue date Jan 7, 1992
    • Daiwa Golf Co., Ltd.
    • Yuichi Aizawa
    • B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
  • Information Patent Grant

    Iron club head
    • Patent number 4,754,975
    • Issue date Jul 5, 1988
    • Daiwa Golf Co., Ltd.
    • Yuichi Aizawa
    • B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
  • Information Patent Grant

    Iron-type golf club head
    • Patent number 4,664,383
    • Issue date May 12, 1987
    • Daiwa Golf Co., Ltd.
    • Yuichi Aizawa
    • B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL