Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10655513 | Oil pan | Naoki Shida | 2020-05-19 |
| 5014659 | Reinforced structure of a cylinder block of an internal combustion engine | Masanori Sato, Kazuo Isayama | 1991-05-14 |
| 4831978 | Internal combustion engine having reinforced structure | Isamu Iguchi, Hiroaki Deguchi, Tsuyoshi Tsuchida | 1989-05-23 |