Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5495837 | Engine valve having improved high-temperature wear resistance | Akira Mitsuhashi, Saburo Wakita, Tsutomu Oka | 1996-03-05 |
| 5486671 | Hard facing apparatus for applying hard facing to valves | Hiroshi Miyata, Yoshio Chiba | 1996-01-23 |