Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8124247 | High-strength welded steel pipe including weld metal having high cold-cracking resistance and method for manufacturing the same | Naoya Hayakawa, Fumimaru Kawabata, Shuichi Sakaguchi, Mitsuhiro Okatsu, Makoto Ota +2 more | 2012-02-28 |