Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4692191 | Method of improving functions of surface of alloy steel by means of irradiation of laser beam, and alloy steel and structure made by the method | Shigeyoshi Maeda, Masahiro Yamamoto, Hideya Okada | 1987-09-08 |
| 4612095 | Method for improving corrosion resistance of bright annealed stainless steel | Satoshi Ito, Tomomi Murata | 1986-09-16 |