Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6213888 | Golf club shaft | Makoto Watari, Katsumi Shimohira, Atsushi Yagita | 2001-04-10 |
| 6135896 | Putter club | Tiejun Miao | 2000-10-24 |
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6213888 | Golf club shaft | Makoto Watari, Katsumi Shimohira, Atsushi Yagita | 2001-04-10 |
| 6135896 | Putter club | Tiejun Miao | 2000-10-24 |