Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8220425 | Valve operation control system for internal combustion engine | Kazuhide Kumagai, Masataka Ikawa | 2012-07-17 |
| 6205970 | Engine balance shafts supporting structure | Kazuyuki Iwata | 2001-03-27 |
| 6189499 | Balancing device for reciprocating engine | Kazuyuki Iwata | 2001-02-20 |
| 5007392 | Cylinder head structure for multiple cylinder engines | Katsumi Noguchi, Kiyoshi Tsukimura | 1991-04-16 |
| 5003937 | Valve operating system for internal combustion engine | Yukihiro Matsumoto, Kenji Yoshihara, Tetsuya Kajiura, Noriyuki Yamada | 1991-04-02 |
| 4928641 | Lubricant supplying system for DOHC type multi-cylinder internal combustion engine | Tsuneo Tanai, Kazuhiro Kasahara, Tsutomu Saka, Toshihiro Oikawa | 1990-05-29 |