Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4926817 | Combustion chamber of subchamber type internal combustion engine | Koji Imoto, Yoichi Kataoka, Kunihiko Nakajima, Motoyuki Maekawa, Hiroki Tamura +1 more | 1990-05-22 |
| 4875445 | Combustion chamber of a sub-chamber type internal combustion engine | Koji Imoto, Mataji Tateishi, Kunihiko Nakajima, Motoyuki Maekawa, Moritake Matusyama +1 more | 1989-10-24 |
| 4619229 | Structure for combustion chamber of auxiliary chamber type internal combustion engine | Koji Imoto, Mataji Tateishi, Noriyasu Inenaga, Hideyuki Ishikawa, Sumio Harada +4 more | 1986-10-28 |