Issued Patents 2003
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6540848 | High strength, high toughness, seamless steel pipe for line pipe | Yukio Miyata, Mitsuo Kimura, Takaaki Toyooka | 2003-04-01 |
| 6521057 | High-strength high-toughness steel products | Mitsuhiro Okatsu, Fumimaru Kawabata, Keniti Amano | 2003-02-18 |