Issued Patents 2005
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6948649 | Method of producing steel pipes, and welded pipes | Nobuaki Takahashi, Akio Yamamoto, Tomoaki Ikeda | 2005-09-27 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6948649 | Method of producing steel pipes, and welded pipes | Nobuaki Takahashi, Akio Yamamoto, Tomoaki Ikeda | 2005-09-27 |