Issued Patents All Time
Showing 1–25 of 29 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6383588 | Fishing rod made of composite material and having woody texture and excellent mechanical property | — | 2002-05-07 |
| 6117028 | Shock absorbing device for use in ballgame goods having tubular rod-shaped body | — | 2000-09-12 |
| 5997970 | Fiber-reinforced rodlike article | — | 1999-12-07 |
| 5976032 | Golf club reinforced by ridges | — | 1999-11-02 |
| 5961395 | Golf club | — | 1999-10-05 |
| 5873794 | Golf club | — | 1999-02-23 |
| 5860878 | Game racket having handle capable of absorbing shock | — | 1999-01-19 |
| 5779573 | Game Racket | — | 1998-07-14 |
| 5700533 | Fiber Braid Material | — | 1997-12-23 |
| 5435550 | Game racket | — | 1995-07-25 |
| 5409215 | Shock-absorbing metal game racket | — | 1995-04-25 |
| 5409218 | Metal game racket | — | 1995-04-25 |
| 5368298 | Game racket of composite material | — | 1994-11-29 |
| 5342044 | Game racket | — | 1994-08-30 |
| 5322249 | Method of making game racket frame of plastic compound material | — | 1994-06-21 |
| 5318742 | Method of making bicycle tubular frame of plastic composite material | — | 1994-06-07 |
| 5286022 | Metal game racket | — | 1994-02-15 |
| 5273279 | Racket frame of plastic compound material | — | 1993-12-28 |
| 5242724 | Shock-absorbing racket frame made from fiber reinforced plastic material | — | 1993-09-07 |
| 5220719 | Method of making game racket frame | — | 1993-06-22 |
| 5198058 | Method of making golf club of plastic composite material | — | 1993-03-30 |
| 5174568 | Racket frame | — | 1992-12-29 |
| 5135223 | Sports racket frame | — | 1992-08-04 |
| 5131651 | Ball bat | — | 1992-07-21 |
| 4572508 | Composite laminated baseball bat | — | 1986-02-25 |