Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11801573 | Tack welding method and tack welding apparatus | Katsura Owaki, Isao Kawaguchi, Kosei Yamamoto, Hiroki Matsuo | 2023-10-31 |
| 11724337 | Hybrid welding device | Katsura Owaki, Isao Kawaguchi, Hiroki Matsuo, Takahiro Akizuki, Naoya Sawada | 2023-08-15 |