Issued Patents All Time
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5163884 | Friction-type stepless speed change device | Kikuzo Takamiya, Yoshitaka Tamura, Nobuaki Shimada | 1992-11-17 |
| 5056630 | Wheel rim for a bicycle | Yoshihiko Fujii, Bunji Mutoh, Yoshitaka Tamura | 1991-10-15 |
| 5045037 | Friction stepless speed change device | Kikuzo Takamiya, Yoshitaka Tamura | 1991-09-03 |
| 5030183 | Friction stepless speed change device | Kikuzo Takamiya, Yoshitaka Tamura | 1991-07-09 |
| 4934205 | Stepless speed change device | Kikuzo Takamiya, Yoshitaka Tamura | 1990-06-19 |
| 4931796 | Digital-to-analog conversion circuit | Yoshinori Hasegawa | 1990-06-05 |
| 4920827 | Stepless speed change device | Kikuzo Takamiya, Yoshitaka Tamura, Yoichi Shibayama, Ritsuo Nishimura, Hiromitsu Serizawa | 1990-05-01 |