Issued Patents All Time
Showing 1–8 of 8 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4916974 | Stepless speed change device | Tohru Takeda | 1990-04-17 |
| 4858485 | Inscribed transmission device | Toru Takeda | 1989-08-22 |
| 4732054 | Stepless speed change device | Kikuzo Takamiya, Masakazu Inaba, Mitsuo Tanaka | 1988-03-22 |
| 4712450 | Stepless speed change device | Kikuzo Takamiya, Hideyuki Ishibashi | 1987-12-15 |
| 4697469 | Stepless speed change device | Kikuzo Takamiya, Hideyuki Ishibashi | 1987-10-06 |
| 4644828 | Stepless speed change device for bicycle | — | 1987-02-24 |
| 4501576 | Power transmission mechanism | Mitsuo Tanaka | 1985-02-26 |
| 4443208 | Speed-change gear mounted outside a bicycle | — | 1984-04-17 |