Issued Patents All Time
Showing 1–19 of 19 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8287401 | Putter head | Tatsuya Ishikawa, Wataru Ban, Fumiaki Sato | 2012-10-16 |
| 8066587 | Putter head | Tatsuya Ishikawa, Wataru Ban, Fumiaki Sato | 2011-11-29 |
| 7588499 | Putter head | — | 2009-09-15 |
| 7500923 | Putter head | — | 2009-03-10 |
| 7435191 | Golf club head | Hideo Matsunaga | 2008-10-14 |
| 7435188 | Golf putter head | Yasunori Imamoto | 2008-10-14 |
| 7431668 | Golf club head | Hideo Matsunaga | 2008-10-07 |
| D572786 | Putter head striking face | Wataru Ban | 2008-07-08 |
| D571880 | Putter head | Wataru Ban | 2008-06-24 |
| D570934 | Putter head | Wataru Ban | 2008-06-10 |
| 7377861 | Golf club head | Hideo Matsunaga | 2008-05-27 |
| D562921 | Golf club head | Vinh-Duy Thai Nguyen | 2008-02-26 |
| D560736 | Putter head | — | 2008-01-29 |
| D550795 | Putter head | — | 2007-09-11 |
| D548294 | Golf club head | Vinh-Duy Thai Nguyen | 2007-08-07 |
| D548299 | Golf club head face | Vinh-Duy Thai Nguyen | 2007-08-07 |
| D504480 | Diamond-shaped central section defined by grooves on a face of a golf club head | Masafumi Nishitani, Koki Motoyoshi | 2005-04-26 |
| D504481 | Diamond-shaped central section defined by grooves on a face of a golf club head | Masafumi Nishitani, Koki Motoyoshi | 2005-04-26 |
| D496420 | Golf club head | Masafumi Nishitani | 2004-09-21 |