Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8540590 | Hollow golf club head | Daisuke Tsukada, Toshimitsu Oyamatsu | 2013-09-24 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8540590 | Hollow golf club head | Daisuke Tsukada, Toshimitsu Oyamatsu | 2013-09-24 |