Issued Patents 2003
Showing 1–9 of 9 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6633853 | Recordable optical disk encrypted with disk identification and multiple keys | Mitsuaki Oshima, Shinichi Tanaka, Kenji Koishi, Mitsurou Moriya, Yoshinari Takemura | 2003-10-14 |
| 6622132 | Device for encoding encrypted information on an optical disk | Mitsuaki Oshima, Shinichi Tanaka, Kenji Koishi, Mitsurou Moriya, Yoshinari Takemura | 2003-09-16 |
| 6618347 | OPTICAL DISK, AN OPTICAL DISK BARCODE FORMING METHOD, AN OPTICAL DISK REPRODUCTION APPARATUS, A MARKING FORMING APPARATUS, A METHOD OF FORMING A LASER MARKING ON AN OPTICAL DISK, AND A METHOD OF MANUFACTURING AN OPTICAL DISK | Mitsuaki Oshima, Shinichi Tanaka, Kenji Koishi, Mitsuro Moriya | 2003-09-09 |
| 6611820 | Recording medium, recorder, reproducer, cryptocommunication system and program license system | Mitsuaki Oshima, Shinichi Tanaka, Kenji Koishi, Mitsurou Moriya, Yoshinari Takemura | 2003-08-26 |
| 6600706 | OPTICAL DISK, AN OPTICAL DISK BARCODE FORMING METHOD, AN OPTICAL DISK REPRODUCTION APPARATUS, A MARKING FORMING APPARATUS, A METHOD OF FORMING A LASER MARKING ON AN OPTICAL DISK, AND A METHOD OF MANUFACTURING AN OPTICAL DISK | Mitsuaki Oshima, Shinichi Tanaka, Kenji Koishi, Mitsuro Moriya | 2003-07-29 |
| 6584046 | Method for reproducing information data from magneto-optical recording medium using linear polarized beam | Mitsuaki Oshima, Shinichi Konishi, Shin-ichi Tanaka, Kenji Koishi, Mitsurou Moriya +3 more | 2003-06-24 |
| 6581167 | Information recording medium, information recording method and information recording/reproduction system | Motoshi Ito, Hiroshi Ueda, Yoshihisa Fukushima | 2003-06-17 |
| 6574420 | Recording/reproducing method suitable for recording/reproducing AV data on/from disc, recorder and reproducer for the method, information recording disc and information processing system | Hiroshi Ueda, Yoshihisa Fukushima | 2003-06-03 |
| 6552969 | OPTICAL DISK, AN OPTICAL DISK BARCODE FORMING METHOD, AN OPTICAL DISK REPRODUCTION APPARATUS, A MARKING FORMING APPARATUS, A METHOD OF FORMING A LASER MARKING ON AN OPTICAL DISK, AND A METHOD OF MANUFACTURING AN OPTICAL DISK | Mitsuaki Oshima, Shinichi Tanaka, Kenji Koishi, Mitsuro Moriya | 2003-04-22 |