Issued Patents 1997
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5669348 | Cylinder head and induction system for engine | Masato Nishigaki | 1997-09-23 |
| 5636613 | Cylinder head porting arrangement for multi-valve engine | Tateo Aoyama, Masato Nishigaki, Masami Wada | 1997-06-10 |