Issued Patents 2003
Showing 1–10 of 10 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6657935 | Method and apparatus for recording information on recording medium | Hideharu Eguchi, Yasuhiro Ueki, Osamu Yanagisawa, Yutaka Osada, Makoto Usui +2 more | 2003-12-02 |
| 6633853 | Recordable optical disk encrypted with disk identification and multiple keys | Mitsuaki Oshima, Yoshiho Gotoh, Shinichi Tanaka, Mitsurou Moriya, Yoshinari Takemura | 2003-10-14 |
| 6622132 | Device for encoding encrypted information on an optical disk | Mitsuaki Oshima, Yoshiho Gotoh, Shinichi Tanaka, 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 | Yoshiho Gotoh, Mitsuaki Oshima, Shinichi Tanaka, Mitsuro Moriya | 2003-09-09 |
| 6611820 | Recording medium, recorder, reproducer, cryptocommunication system and program license system | Mitsuaki Oshima, Yoshiho Gotoh, Shinichi Tanaka, Mitsurou Moriya, Yoshinari Takemura | 2003-08-26 |
| 6611481 | Optical recording/reproducing apparatus | Mamoru Shoji | 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 | Yoshiho Gotoh, Mitsuaki Oshima, Shinichi Tanaka, 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, Mitsurou Moriya, Yoshiho Gotoh +3 more | 2003-06-24 |
| 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 | Yoshiho Gotoh, Mitsuaki Oshima, Shinichi Tanaka, Mitsuro Moriya | 2003-04-22 |
| 6510116 | Optical information recording/reproducing method and optical information recording/reproducing apparatus | Naoyasu Miyagawa, Takashi Ishida, Junichi Minamino, Shigeru Furumiya | 2003-01-21 |