Issued Patents All Time
Showing 51–52 of 52 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4720307 | Method for producing high strength steel excellent in properties after warm working | Seishi Tsuyama, Hisatoshi Tagawa, Yoshitaka Yamasaki | 1988-01-19 |
| 4184898 | Method of manufacturing high strength low alloys steel plates with superior low temperature toughness | Chiaki Ouchi, Tomoyoshi Okita | 1980-01-22 |