Issued Patents All Time
Showing 1–16 of 16 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7887435 | Golf club head | — | 2011-02-15 |
| 7857712 | Golf club head | Hisashi Yamagishi, Makoto Kubota, Koki Motoyoshi | 2010-12-28 |
| 7749095 | Golf club head | — | 2010-07-06 |
| 7563175 | Golf club | Masaei Tsurumaki | 2009-07-21 |
| 7156750 | Golf club head | Hideo Matsunaga | 2007-01-02 |
| D526036 | Golf club head | — | 2006-08-01 |
| D521583 | Golf club head | Koki Motoyoshi | 2006-05-23 |
| D518863 | Golf club head | Koki Motoyoshi | 2006-04-11 |
| D517146 | Trapezoid-shaped portion of a rear surface of a golf club head | — | 2006-03-14 |
| 6932718 | Golf club head | — | 2005-08-23 |
| 6929563 | Iron type golf club head | — | 2005-08-16 |
| D504481 | Diamond-shaped central section defined by grooves on a face of a golf club head | Koki Motoyoshi, Atsuo Tateno | 2005-04-26 |
| D504480 | Diamond-shaped central section defined by grooves on a face of a golf club head | Koki Motoyoshi, Atsuo Tateno | 2005-04-26 |
| D502976 | Golf club head | Koki Motoyoshi | 2005-03-15 |
| D496420 | Golf club head | Atsuo Tateno | 2004-09-21 |
| D491620 | Iron golf club head | — | 2004-06-15 |