Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6770167 | Production method of and production apparatus for optical recording disc | Kokichi Kohinata, Shoji Akiyama | 2004-08-03 |
| 6702920 | Production method of and production apparatus for optical recording disc | Kokichi Kohinata, Shoji Akiyama, Tokuhiro Morioka | 2004-03-09 |
| 6478908 | Production method of and production apparatus for optical recording disc | Kokichi Kohinata, Shoji Akiyama, Tokuhiro Morioka | 2002-11-12 |