Issued Patents All Time
Showing 51–58 of 58 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6508224 | Handheld type four-cycle engine | Koji Kasai, Takao Nishida, Yasuhiro Shimizu, Takeshi Maeda, Yasutake Ryu | 2003-01-21 |
| 6505596 | Handheld type four-cycle engine | Takao Nishida | 2003-01-14 |
| 6494176 | Oil mist generation system in handheld type four-cycle engine | Takao Nishida, Sei Watanabe | 2002-12-17 |
| 6484679 | Engine valve operation mechanism | Takeshi Maeda, Takao Nishida | 2002-11-26 |
| 6427672 | Valve-operating device with breather system in engine | Takao Nishida, Shigeki Edamatsu | 2002-08-06 |
| 6422194 | Handheld type four-cycle engine | Takao Nishida, Sei Watanabe | 2002-07-23 |
| D453522 | Internal-combustion engine | Joji Maeda | 2002-02-12 |
| 6250273 | 4-cycle engine | Yasutake Ryu, Takao Nishida | 2001-06-26 |