Issued Patents 2004
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6725820 | Valve-operating mechanism in engine | Keita Ito, Tetsuya Arai | 2004-04-27 |
| 6705263 | Handheld type four-cycle engine | Keita Ito, Koji Kasai, Takao Nishida, Yasuhiro Shimizu, Takeshi Maeda | 2004-03-16 |
| 6672273 | Handheld type four-cycle engine | Keita Ito, Koji Kasai, Takao Nishida, Yasuhiro Shimizu, Takeshi Maeda | 2004-01-06 |