Issued Patents All Time
Showing 1–8 of 8 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7784833 | Roller skis | — | 2010-08-31 |
| 6217056 | Walking aid | — | 2001-04-17 |
| 5431255 | Braking device for bicycle | — | 1995-07-11 |
| 5064035 | Coaster brake provided with reversing function | — | 1991-11-12 |
| 4766772 | Hub mechanism for self-propelling type light vehicle | — | 1988-08-30 |
| 4702486 | Driving device for bicycle | — | 1987-10-27 |
| 4595213 | Auxiliary wheel arrangement of bicycle | — | 1986-06-17 |
| 4230212 | Rear hub for a bicycle | Takafumi Harada | 1980-10-28 |