Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5024184 | Direct fuel injection internal combustion engine | Susumu Nagano, Katsuyuki Ohsawa | 1991-06-18 |
| 4693215 | Inlet port for internal combustion engine | Katsuhiko Sugiyama, Yoshinori Idota | 1987-09-15 |
| 4676216 | Injection nozzle | Katsuyuki Ohsawa, Susumu Nagano | 1987-06-30 |
| 4574751 | Inlet port for internal combustion engine | Katsuhiko Sugiyama, Yoshinori Idota | 1986-03-11 |