Issued Patents 2022
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11453082 | Electric resistance welding electrode and method for maintaining airtightness | Shoji Aoyama | 2022-09-27 |
| 11230439 | Feeding rod for shaft-shaped component and feeding method | Shoji Aoyama | 2022-01-25 |