Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6386163 | Valve system for an engine | Takaaki Tsukui, Takashi Ichimura | 2002-05-14 |
| 6378495 | Engine with valve resting function | Takaaki Tsukui, Tomoyuki Okamoto | 2002-04-30 |
| 6302070 | Valve system for engine | Takaaki Tsukui, Takashi Ichimura | 2001-10-16 |