Games using tangible projectile – Golf – Club or club support
Patent
1998-08-06
2000-07-18
Nguyen, Kien T.
Games using tangible projectile
Golf
Club or club support
473342, 473349, A63B 5304
Patent
active
060899921
ABSTRACT:
In a golf club head having a face body, the face body is composed of a hybrid of an amorphous phase layer and a crystal phase layer. The crystal phase layer is disposed on a reverse face side of a face. And, thickness of the face body is 0.5 mm to 5.0 mm, thickness of the amorphous phase layer is, on average in whole area of the face body, more than 50% of the thickness of the face body, and thickness of the crystal phase layer is arranged to be 0.01 mm to 3.0 mm.
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patent: 5620382 (1997-04-01), Cho et al.
patent: 5779560 (1998-07-01), Buck et al.
patent: 5896642 (1999-04-01), Peker et al.
Inoue Akihisa
Minamiguchi Haruyoshi
Ohnishi Akio
Onuki Masahide
Yamaguchi Tetsuo
Inoue Akihisa
Nguyen Kien T.
Sumitomo Rubber Industries Inc.
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