Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7028648 | Multiple cylinder internal combustion engine | Kunio Hasegawa, Eiji Mishima, Toshihiro Imanishi, Kazunori Nishikawa, Takeshi Serizawa | 2006-04-18 |
| 5490483 | Two-cycle internal combustion engine | Makoto Tanikake, Katsuhiko Shirai, Masanori Shimada | 1996-02-13 |