Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6773358 | Golf club shaft | Masahide Onuki | 2004-08-10 |
| 6533677 | Golf club shaft | Masahide Onuki | 2003-03-18 |
| 6475099 | Golf club head | Masaya Tsunoda | 2002-11-05 |
| 6017279 | Golf club shaft | — | 2000-01-25 |
| 5628698 | Iron club head | — | 1997-05-13 |