Issued Patents 2003
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6532995 | Super-high-strength line pipe excellent in low temperature toughness and production method thereof | Hitoshi Asahi, Hiroshi Tamehiro, Yoshio Terada, Shigeru Ohkita, Kunio Koyama | 2003-03-18 |