Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4875445 | Combustion chamber of a sub-chamber type internal combustion engine | Koji Imoto, Tadao Omura, Kunihiko Nakajima, Motoyuki Maekawa, Moritake Matusyama +1 more | 1989-10-24 |
| 4864990 | Injection system for a dual-fuel engine | Etsuo Kunimoto, Hiroshi Nakagawa, Tatsuo Takaishi | 1989-09-12 |