Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6882612 | BCA evaluation device and method for rewritable DVDs with different threshold value pulse signals | Tetsuya Shiizaki, Saburo Kubota | 2005-04-19 |
| 6231706 | Method and apparatus for manufacturing optical disk | Norihide Higaki, Keinosuke Kanashima, Hideki Tsutsumi | 2001-05-15 |