Issued Patents All Time
Showing 51–52 of 52 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7037180 | Method and apparatus for surface treatment of a long piece of material | Mitsugi Umemura | 2006-05-02 |
| 7021998 | Method and device for finishing surface of long material | Mitsugi Umemura | 2006-04-04 |