Issued Patents 2021
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11014186 | Wire fed arc welding method having abnormal arc or abnormal short circuit welding steps | Atsuhiro Kawamoto, Junji Fujiwara, Akira Nakagawa | 2021-05-25 |
| 10974338 | Arc welding control method | Yuya Furuyama, Atsuhiro Kawamoto, Junji Fujiwara, Masaru Kowa | 2021-04-13 |
| 10919100 | Arc welding control method | Yuya Furuyama, Atsuhiro Kawamoto, Junji Fujiwara, Masaru Kowa | 2021-02-16 |