Issued Patents All Time
Showing 26–28 of 28 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4396442 | Ductile cast iron roll and a manufacturing method thereof | Masahiro Fukuda, Akitoshi Okabayashi | 1983-08-02 |
| 4344391 | Ignition timing control means for internal combustion engines | Masashi Mizutani | 1982-08-17 |
| 4282061 | System for preventing erroneous operation of control rods | Mikio Sakurai, Yuichiro Yoshimoto | 1981-08-04 |