Issued Patents 2016
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9364921 | Method of manufacturing laser welded steel pipe | Koji Yano, Hiroyuki Sumi | 2016-06-14 |
| 9321119 | Combination welding method using combination of gas metal arc welding and submerged-arc welding and combination arc welding machine | Naoya Hayakawa, Atsushi Ishigami, Kenji Shimada, Masahiro Odaka | 2016-04-26 |