Issued Patents All Time
Showing 26–34 of 34 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4712442 | Lubricating mechanism for a rotary machine | Hidemi Oonaka | 1987-12-15 |
| 4656992 | Internal combustion engine with by-pass control system for supercharger | Hidemi Oonaka, Yoshiaki Shibata, Kingo Horii, Yasushi Sato, Tomojiro Akiyama | 1987-04-14 |
| 4611568 | Internal combustion engine with by-pass control system for supercharger | Hidemi Onaka, Yoshiaki Shibata, Kingo Horii, Yasushi Sato | 1986-09-16 |
| 4596225 | Internal combustion engine provided with mechanical supercharger | Hidemi Oonaka, Yoshiaki Shibata, Kingo Horii, Yasushi Sato | 1986-06-24 |
| 4561390 | Variable valve-timing apparatus in an internal combustion engine | Norihiko Nakamura, Yoshiaki Shibata, Toshio Miki | 1985-12-31 |
| 4498431 | Variable valve-timing apparatus in an internal-combustion engine | Norihiko Nakamura | 1985-02-12 |
| 4494495 | Variable valve-timing apparatus in an internal combustion engine | Norihiko Nakamura, Toshio Miki, Minoru Kohigashi | 1985-01-22 |
| 4494496 | Variable valve-timing apparatus in an internal-combustion engine | Norihiko Nakamura | 1985-01-22 |
| 4318376 | Combustion chamber of an internal combustion engine | Norihiko Nakamura, Kiyoshi Nakanishi, Kazuhiko Itou, Shuji Morita | 1982-03-09 |