Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7297070 | Golf club shaft selecting system and golf club shaft selecting method | Takeshi Saito, Toshimitu Shimizu | 2007-11-20 |
| 7037212 | Fiber reinforced plastic golf shaft | Takashi Ishii, Susumu Hironaka | 2006-05-02 |
| 6666778 | FRP golf club shaft | — | 2003-12-23 |
| 6652389 | Golf club shaft | Goro Hisamatsu, Yasushi Matsui | 2003-11-25 |
| 6572490 | FRP golf club shaft | — | 2003-06-03 |