Issued Patents 2005
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 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 |