Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11407054 | Arc welding method and arc welding device | Tetsuo Era | 2022-08-09 |
| 11370052 | Arc welding system and wire feeding device | Masahiro Inoue, Yukiya Morita, Hisao Miyahara, Hirokazu Kawai, Songjie Hou +3 more | 2022-06-28 |
| 10710187 | Welding method and arc welding device | Hideo Shiozaki, Tetsuo Era | 2020-07-14 |