Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4517726 | Method of producing seal ring | Nobuyoshi Masumoto, Akira Sui | 1985-05-21 |
| 4316075 | Automatic welding position control method, and device | Toshisuke Isoya, Masayuki Mishiro | 1982-02-16 |
| 4305096 | Method of detecting weld lines | Toshisuke Isoya, Masayuki Mishiro | 1981-12-08 |