Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4422426 | Antechamber system diesel engine | Takanori Tsugekawa, Masakuni Matsui | 1983-12-27 |
| 4323039 | Antechamber system diesel engine | Takanori Tsugekawa, Masakuni Matsui | 1982-04-06 |
| 4311122 | Direct injection type diesel engine | Katsuyuki Morichika, Tetsuya Nakanishi | 1982-01-19 |