Issued Patents 2005
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6953508 | High strength steel weld having improved resistance to cold cracking and a welding method | Tomoaki Ikeda, Akio Yamamoto, Shigemichi Yamauchi, Masahiko Hamada | 2005-10-11 |
| 6948649 | Method of producing steel pipes, and welded pipes | Akio Yamamoto, Tomoaki Ikeda, Tetsuya Fukuba | 2005-09-27 |