Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9644774 | Welding joint and welding method for same, welding device, welding joint, resin pipe welding device and welding method | Ryo Imanishi, Masateru Yamada, Takehiro Nakamura, Akihiro Masuda | 2017-05-09 |