Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8097099 | High toughness abrasion resistant steel with little change in hardness during use and method of production of same | Naoki Saitoh, Tatsuya Kumagai, Katsumi Kurebayashi | 2012-01-17 |
| 4946516 | Process for producing high toughness, high strength steel having excellent resistance to stress corrosion cracking | Seinosuke Yano, Yoshihiro Okamura | 1990-08-07 |