Issued Patents 2005
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6938162 | Optical disk, optical disk recording and reproducing apparatus, method for recording, reproducing and deleting data on optical disk, and information processing system | Takahiro Nagai, Hideshi Ishihara, Yuji Takagi, Mamoru Shoji, Mitsuaki Oshima +6 more | 2005-08-30 |
| 6901042 | Optical disc, having a certification pit for certifying that data recording thereon is original | Koichi Morioka, Keiichi Kawashima | 2005-05-31 |
| 6891788 | Optical disk, and method and apparatus for reproducing information recorded in optical disk | Teruyuki Takizawa, Mitsuro Moriya, Mitsuaki Oshima, Akihiko Nishioka, Koichi Morioka | 2005-05-10 |