Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4826543 | Process for producing high toughness, high strength steel having excellent resistance to stress corrosion cracking | Seinosuke Yano, Katsuo Kaku, Junichi Kobayashi | 1989-05-02 |