Issued Patents All Time
Showing 1–25 of 59 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9119997 | Ferrule and golf club | — | 2015-09-01 |
| 8926450 | Golf club head | Hiroshi Takahashi | 2015-01-06 |
| 8425341 | Wood type golf club head | Takaharu Takechi, Tomoe WATANABE | 2013-04-23 |
| 8092320 | Golf club head | Hisashi Yamagishi | 2012-01-10 |
| 8033929 | Golf club head | Hisashi Yamagishi | 2011-10-11 |
| 7914396 | Golf club head | Hisashi Yamagishi, Hideo Matsunaga | 2011-03-29 |
| 7878923 | Golf club head | Hisashi Yamagishi | 2011-02-01 |
| 7806781 | Golf club head | — | 2010-10-05 |
| 7749101 | Wood-type golf club head | Hideo Shimazaki, Hideo Matsunaga | 2010-07-06 |
| 7695377 | Golf club head | Hisashi Yamagishi | 2010-04-13 |
| 7540812 | Golf club head | Hisashi Yamagishi | 2009-06-02 |
| 7530903 | Golf club head | Hisashi Yamagishi | 2009-05-12 |
| 7530901 | Golf club head | Hisashi Yamagishi | 2009-05-12 |
| 7520822 | Golf club head | Hisashi Yamagishi | 2009-04-21 |
| 7497788 | Golf club head | Katsumi Iida | 2009-03-03 |
| 7481719 | Golf club head | — | 2009-01-27 |
| 7455600 | Golf club head | Hisashi Yamagishi | 2008-11-25 |
| 7438649 | Golf club head | Hiroshi Ezaki | 2008-10-21 |
| 7435188 | Golf putter head | Atsuo Tateno | 2008-10-14 |
| 7410427 | Iron golf club head | Hisashi Yamagishi | 2008-08-12 |
| 7351163 | Golf club head | Hideo Shimazaki | 2008-04-01 |
| 7347795 | Golf club head | Hisashi Yamagishi | 2008-03-25 |
| 7344452 | Golf club head | Hisashi Yamagishi | 2008-03-18 |
| 7326472 | Golf club head | Hideo Shimazaki | 2008-02-05 |
| 7318782 | Golf club head | Hisashi Yamagishi | 2008-01-15 |