Issued Patents All Time
Showing 301–325 of 352 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 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 | Yoshiho Gotoh, Shinichi Tanaka, Kenji Koishi, Mitsuro Moriya | 2002-10-22 |
| 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 | Yoshiho Gotoh, 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 | Yoshiho Gotoh, Shinichi Tanaka, Kenji Koishi, Mitsuro Moriya | 2002-09-10 |
| 6408285 | Optical disk reading device using both a decipher key and disk identification information for decryption | Yoshino Gotoh, Shinichi Tanaka, Kenji Koishi, Mitsurou Moriya, Yoshinari Takemura | 2002-06-18 |
| 6381588 | Optical disk recordable using both a cipher key and disk identification information for encryption | Yoshiho Gotoh, Shinichi Tanaka, Kenji Koishi, Mitsurou Moriya, Yoshinari Takemura | 2002-04-30 |
| 6343282 | Optical disk reading device using both a decipher key and disk identification information | Yoshiho Gotoh, Shinichi Tanaka, Kenji Koishi, Mitsurou Moriya, Yoshinari Takemura | 2002-01-29 |
| 6301569 | Optical disk, optical recorder, optical reproducer, cryptocommunication system and program license system | Yoshiro Gotoh, Shinichi Tanaka, Kenji Koishi, Mitsurou Moriya, Yoshinari Takemura | 2001-10-09 |
| 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 | Yoshiho Gotoh, Shinichi Tanaka, Kenji Koishi, Mitsuro Moriya | 2001-10-02 |
| 6295262 | Method and apparatus for recording information onto optical disk | Shoji Kusumoto, Satoshi Tanaka, Seiji Tanaka | 2001-09-25 |
| 6285763 | 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, Shinichi Tanaka, Kenji Koishi, Mitsuro Moriya | 2001-09-04 |
| 6285764 | 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, Shinichi Tanaka, Kenji Koishi, Mitsuro Moriya | 2001-09-04 |
| 6285762 | Optical disk, optical disk barcode forming method, optical disk reproduction apparatus, marking forming apparatus, method of forming a laser marking on an optical disk, and a method of manufacturing an optical disk | Yoshiho Gotoh, Shinichi Tanaka, Kenji Koishi, Mitsuro Moriya | 2001-09-04 |
| 6278671 | 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, Shinichi Tanaka, Kenji Koishi, Mitsuro Moriya | 2001-08-21 |
| 6266299 | Magneto-optical disk having write-once identification marks and method for recording thereof | Shinichi Konishi, Shin-ichi Tanaka, Kenji Koishi, Mitsurou Moriya, Yoshiho Gotoh +3 more | 2001-07-24 |
| 6256357 | Communication system | — | 2001-07-03 |
| 6243330 | Medium, apparatus, and method related to encryption resultant information | — | 2001-06-05 |
| 6229896 | Optical disk, an optical 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, Shinichi Tanaka, Kenji Koishi, Mitsuro Moriya | 2001-05-08 |
| 6208736 | 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, Shinichi Tanaka, Kenji Koishi, Mitsuro Moriya | 2001-03-27 |
| 6175629 | 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, Shinichi Tanaka, Kenji Koishi, Mitsuro Moriya | 2001-01-16 |
| 6160888 | 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, Shinichi Tanaka, Kenji Koishi, Mitsuro Moriya | 2000-12-12 |
| 6144742 | 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, Shinichi Tanaka, Kenji Koishi, Mitsuro Moriya | 2000-11-07 |
| 6141419 | 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, Shinichi Tanaka, Kenji Koishi, Mitsuro Moriya | 2000-10-31 |
| 6128388 | 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, Shinichi Tanaka, Kenji Koishi, Mitsuro Moriya | 2000-10-03 |
| 6125181 | Optical disk, an optical disk barcode forming method, an optical 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, Shinichi Tanaka, Kenji Koishi, Mitsuro Moriya | 2000-09-26 |
| 6122373 | Optical disk, optical disk barcode forming method, 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, Shinichi Tanaka, Kenji Koishi, Mitsuro Moriya | 2000-09-19 |