Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5294309 | Electro-abrasive polishing of the inner surface of pipes to extra-smooth mirror finish | Keiichirou Asagawa | 1994-03-15 |
| 4609450 | Combined electrolytic-abrasive polishing apparatus | Kenji Nakagami | 1986-09-02 |