Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4888153 | Fe-base build-up alloy excellent in resistance to corrosion and wear | Saburo Wakita | 1989-12-19 |
| 4832912 | Thermal and wear resistant tough alloy | Junya Ohe, Takumi Kawamura | 1989-05-23 |