Issued Patents 2002
Showing 1–9 of 9 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6490302 | Semiconductor laser control circuit and laser light source | Kohjyu Konno | 2002-12-03 |
| 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 | Yoshiho Gotoh, Mitsuaki Oshima, Shinichi Tanaka, 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 | Yoshiho Gotoh, Mitsuaki Oshima, Shinichi Tanaka, 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, Mitsuaki Oshima, Shinichi Tanaka, 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, Mitsuaki Oshima, Shinichi Tanaka, Mitsuro Moriya | 2002-09-10 |
| 6408285 | Optical disk reading device using both a decipher key and disk identification information for decryption | Mitsuaki Oshima, Yoshino Gotoh, Shinichi Tanaka, Mitsurou Moriya, Yoshinari Takemura | 2002-06-18 |
| 6381588 | Optical disk recordable using both a cipher key and disk identification information for encryption | Mitsuaki Oshima, Yoshiho Gotoh, Shinichi Tanaka, Mitsurou Moriya, Yoshinari Takemura | 2002-04-30 |
| 6343282 | Optical disk reading device using both a decipher key and disk identification information | Mitsuaki Oshima, Yoshiho Gotoh, Shinichi Tanaka, Mitsurou Moriya, Yoshinari Takemura | 2002-01-29 |
| 6339579 | Semiconductor laser diode driving device and driving method | Yuichi Kamioka, Yoshiyuki Miyabata, Naoyuki Nakamura, Kenichi Tatehara, Ikuo Hidaka +1 more | 2002-01-15 |