Issued Patents 2003
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6653590 | Projection bolt welding device | Shoji Aoyama | 2003-11-25 |
| 6644382 | Casting sand shake-out method and its apparatus | Shoji Aoyama | 2003-11-11 |
| 6607067 | Method and device for part transportation | Shoji Aoyama | 2003-08-19 |