Issued Patents All Time
Showing 76–100 of 131 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6778969 | Method and apparatus for encrypting and recording received content information on a recording medium using both medium identification information and a cipher key for encryption | Mitsuaki Oshima, Shinichi Tanaka, Kenji Koishi, Mitsurou Moriya, Yoshinari Takemura | 2004-08-17 |
| 6757391 | 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 A OPTICAL DISK, AND A METHOD OF MANUFACTURING AN OPTICAL DISK | Mitsuaki Oshima, Shinichi Tanaka, Kenji Koishi, Mitsuro Moriya | 2004-06-29 |
| 6728882 | 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 | 2004-04-27 |
| 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 |
| 6480960 | 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 | 2002-11-12 |
| 6470452 | 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 | 2002-10-22 |
| 6466735 | Optical disk and reproduction apparatus for producing optical disk | Masayuki Kozuka, Masataka Minami, Kazuoki Otani, Osamu Kawashima, Yoshihisa Fukushima | 2002-10-15 |
| 6457128 | 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 | 2002-09-24 |
| 6449366 | 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 | 2002-09-10 |
| 6385148 | Information recording medium, information recording method, information recording apparatus and information reproducing apparatus | Motoshi Ito, Hiroshi Ueda, Yoshihisa Fukushima | 2002-05-07 |
| 6381588 | Optical disk recordable using both a cipher key and disk identification information for encryption | Mitsuaki Oshima, Shinichi Tanaka, Kenji Koishi, Mitsurou Moriya, Yoshinari Takemura | 2002-04-30 |
| 6370325 | Optical disc recording apparatus, computer-readable recording medium recording a file management program, and optical disc | Tokuo Nakatani, Yasushi Tamakoshi, Hiroshi Kato, Tomoyuki Okada, Kaoru Murase | 2002-04-09 |
| 6353704 | Optical disc recording apparatus, computer-readable recording medium recording a file management program, and optical disc | Tokuo Nakatani, Yasushi Tamakoshi, Hiroshi Kato, Tomoyuki Okada, Kaoru Murase | 2002-03-05 |
| 6343282 | Optical disk reading device using both a decipher key and disk identification information | Mitsuaki Oshima, Shinichi Tanaka, Kenji Koishi, Mitsurou Moriya, Yoshinari Takemura | 2002-01-29 |
| 6314235 | 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 | 2001-11-06 |
| 6304534 | Information recording medium, information recording method, information recording apparatus and information reproducing apparatus | Motoshi Ito, Hiroshi Ueda, Yoshihisa Fukushima | 2001-10-16 |
| 6298138 | 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 | 2001-10-02 |