Issued Patents All Time
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6335100 | Structural material and process for its production | Ichiro Tominaga, Taketo Matsuki, Tetsuo Yamaguchi, Kunio Niwa | 2002-01-01 |
| 5465945 | Laminated rubber support and method of designing the same | Teruo Sasaki, Kazuhiro Fujisawa | 1995-11-14 |
| 5324117 | Laminated rubber bearing | Kazuhiro Fujisawa, Teruo Sasaki | 1994-06-28 |
| 5114145 | Tennis racket frame | Tetsuo Yamaguchi, Kunio Niwa | 1992-05-19 |
| 5102729 | Speaker diaphragm | Tetsuo Yamaguchi, Kunio Niwa | 1992-04-07 |
| 5082437 | Reaction injection machine utilizing a plurality of reactant liquids | Masao Maekawa, Masaji Hasegawa, Tetsuo Yamaguchi, Kunio Niwa | 1992-01-21 |
| 4928965 | Golf club and method of designing same | Tetsuo Yamaguchi | 1990-05-29 |