Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4851054 | Method of producing rolled steel having excellent resistance to sulfide stress corrosion cracking | Toshio Fukuzuka, Kazutoshi Shimogori, Kohjiro Kitahata, Takuo Hosoda | 1989-07-25 |
| 4820486 | Low alloy steel having good stress corrosion cracking resistance | Kazutoshi Shimogori, Kazuo Fujiwara, Kiyoshi Sugie, Kikuo Morita, Takenori Nakayama +1 more | 1989-04-11 |