Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4887567 | Connecting arrangement in valve operating system for internal combustion engine | Masaaki Matsuura, Masaharu Nakamori, Masahiro Kuroki | 1989-12-19 |
| 4858577 | Rotary valve device for internal combustion engines | Masaaki Matsuura, Masaharu Nakamori, Masahiro Kuroki | 1989-08-22 |