Issued Patents All Time
Showing 1–9 of 9 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6213236 | Sensor for bicycle with assist engine | — | 2001-04-10 |
| 6119801 | Power assisted bicycle | Izumi Yamashita, Takeshi Nagase | 2000-09-19 |
| 5937962 | Bicycle with assist engine | — | 1999-08-17 |
| 5212952 | Compact power supply and lubricant affording device therefor | Shigeru Akiyama, Kazuhito Kitano | 1993-05-25 |
| 5197910 | Outboard motor | Nobuyuki Kanno | 1993-03-30 |
| 5086748 | Fuel supplying system for gas engine | — | 1992-02-11 |
| 5012781 | Gas engine | Shigeru Akiyama, Hironori Nakayama, Tsuyoshi Kamiya | 1991-05-07 |
| 4989573 | Gas powered engine with glow plug ignition | Shigeru Akiyama, Tsuyoshi Kamiya | 1991-02-05 |
| 4958599 | Cooling device for engine | Shigeru Akiyama | 1990-09-25 |