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Yutaka Oku
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Tokyo, JP
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last 30 patents
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
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
5,411,264
Issue date
May 2, 1995
Daiwa Golf Co., Ltd.
Yutaka Oku
A63 - SPORTS GAMES AMUSEMENTS