Issued Patents All Time
Showing 1–21 of 21 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6102274 | Method for manufacturing golf club heads | — | 2000-08-15 |
| 5910056 | Golf club | Atsushi Tsuchida | 1999-06-08 |
| 5908356 | Wood golf club head | — | 1999-06-01 |
| 5792004 | Iron golf club and a method for producing the same | — | 1998-08-11 |
| 5669827 | Metallic wood club head for golf | — | 1997-09-23 |
| 5647807 | Golf club | — | 1997-07-15 |
| 5611740 | Golf club | — | 1997-03-18 |
| 5586944 | Golf club head | Noburo Sumikawa, Tatsuya Hirakawa, Tatsuo Nakanishi | 1996-12-24 |
| 5499819 | Golf club head and a method for producing the same | — | 1996-03-19 |
| 5454563 | Golf club | Atsushi Tsuchida | 1995-10-03 |
| 4884812 | Golf club head | Yoichi Nagasaki, Toyohiko Tadokoro, Masaki Fujimura | 1989-12-05 |
| 4883623 | Method for producing a golf club head | Tatsuo Nakanishi, Tomoharu Yamashita | 1989-11-28 |
| 4824116 | Golf club head | Tatsuo Nakanishi, Ryohei Tajima | 1989-04-25 |
| 4798383 | Golf club head | Yoichi Nagasaki, Toyohiko Tadokoro, Masaki Fujimura | 1989-01-17 |
| 4795159 | Wood-type golf club head | — | 1989-01-03 |
| 4792139 | Golf club head | Yoichi Nagasaki, Toyohiko Tadokoro, Masaki Fujimura | 1988-12-20 |
| 4714577 | Method for producing a wood-type golf club head | Tatsuo Nakanishi, Ryohei Tajima | 1987-12-22 |
| 4581190 | Process for producing a wood-type golf club head | Tatsuo Nakanishi | 1986-04-08 |
| 4479652 | Wood-type golf club head | — | 1984-10-30 |
| 4283050 | Racket frame | — | 1981-08-11 |
| 4203596 | Racket and a method for manufacturing same | — | 1980-05-20 |