Issued Patents 2003
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6532995 | Super-high-strength line pipe excellent in low temperature toughness and production method thereof | Hiroshi Tamehiro, Takuya Hara, Yoshio Terada, Shigeru Ohkita, Kunio Koyama | 2003-03-18 |
| 6517643 | Steel having excellent outer surface SCC resistance for pipeline | Shigeo Okano, Takahiro Kushida, Yasuyoshi Yamane, Hideaki Fukai | 2003-02-11 |