Issued Patents 2004
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6770840 | Method of butt-welding hot-rolled steel materials by laser beam and apparatus therefor | Hiroyuki Yamamoto, Motoi Kido | 2004-08-03 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6770840 | Method of butt-welding hot-rolled steel materials by laser beam and apparatus therefor | Hiroyuki Yamamoto, Motoi Kido | 2004-08-03 |