Issued Patents All Time
Showing 1–10 of 10 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5884612 | Gas ventilation system for internal combustion engine | Masaki Takeyama, Tohru Yoshinaga, Masahiro Takigawa, Akira Ii | 1999-03-23 |
| 5016595 | Air-fuel ratio control device for internal combustion engine | Narihisa Nakagawa | 1991-05-21 |
| 4982716 | Fuel injection valve with an air assist adapter for an internal combustion engine | Keiso Takeda, Kiyoshi Nakanishi, Michiaki Ujihashi, Yuichi Takano | 1991-01-08 |
| 4925110 | Fuel injection valve for an internal combustion engine having a pillar opposing a fuel injection hole | Keiso Takeda, Kiyoshi Nakanishi, Rio Shimizu | 1990-05-15 |
| 4856473 | Internal combustion engine with multiple intake valves and EGR arrangement | Norihisa Nakagawa, Shin Sano | 1989-08-15 |
| 4667636 | Fuel injection type internal combustion engine | Kiyohiko Oishi, Kiyoshi Nakanishi, Nobuaki Kayanuma, Norihisa Nakagawa, Hiroshi Nomura | 1987-05-26 |
| 4570590 | Internal combustion engine with multiple intake valves | Norihisa Nakagawa, Nobuaki Kayanuma, Toshinari Nagai | 1986-02-18 |
| 4559599 | Optimum shift position indication using successive two-dimensional data maps | Nobuo Habu, Kouichi Osawa, Yuuichi Kato, Michio Furuhashi, Junichi Saiki +2 more | 1985-12-17 |
| 4548175 | Internal combustion engine with two intake valves | Nobuo Habu, Shinichi Matsumoto | 1985-10-22 |
| 4478190 | Fuel injection timing control in electronically controlled engine | — | 1984-10-23 |