Issued Patents All Time
Showing 26–33 of 33 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7000579 | Valve system for internal combustion engine | Yutaka Inomoto, Tomomi Ishikawa | 2006-02-21 |
| 6990938 | Valve mechanism for internal combustion engines | Yutaka Inomoto, Takashi Tsutsumizaki, Kazuya Tanabe | 2006-01-31 |
| 6494806 | Lubricating oil supply system for infinitely variable transmission | Yoshiaki Tsukada | 2002-12-17 |
| 5806621 | Electric power assisted bicycle | Hajime Soda | 1998-09-15 |
| 5395293 | Speed change controller for vehicle | Masaaki Matsuura, Kunihiko Tanaka, Seiji Onozawa | 1995-03-07 |
| 4887567 | Connecting arrangement in valve operating system for internal combustion engine | Masaaki Matsuura, Masaharu Nakamori, Mitsuru Ishikawa | 1989-12-19 |
| 4858577 | Rotary valve device for internal combustion engines | Masaaki Matsuura, Mitsuru Ishikawa, Masaharu Nakamori | 1989-08-22 |
| 4776306 | Valve operating system for internal combustion engine | Masaaki Matsuura, Masaharu Nakamori | 1988-10-11 |