Issued Patents 2002
Showing 1–14 of 14 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6496460 | Optical disk, an optical disk device, and a method of managing defects in an optical disk | Hiroyuki Ohata | 2002-12-17 |
| 6493306 | Optical disk, optical disk drive apparatus, and optical disk tracking method | Hiroyuki Oohata, Masato Nagasawa, Kenji Gotoh, Yoshinobu Ishida | 2002-12-10 |
| 6493303 | Optical disk, an optical disk device, and a method of managing defects in an optical disk | Hiroyuki Ohata | 2002-12-10 |
| 6483790 | Optical disk, an optical disk device, and a method of managing defects in an optical disk | Hiroyuki Ohata | 2002-11-19 |
| 6469978 | Rewritable optical disk with spare area and optical disk processing apparatus | Hiroyuki Ohata | 2002-10-22 |
| 6466530 | Optical disk, optical disk drive apparatus, and optical disk tracking method | Hiroyuki Oohata, Masato Nagasawa, Kenji Gotoh, Yoshinobu Ishida | 2002-10-15 |
| 6463021 | Optical disk, an optical disk device, and a method of managing defects in an optical disk | Hiroyuki Ohata | 2002-10-08 |
| 6438079 | Optical disk, optical disk drive apparatus, and optical disk tracking method | Hiroyuki Oohata, Masato Nagasawa, Kenji Gotoh, Yoshinobu Ishida | 2002-08-20 |
| 6434099 | Optical disk having an attribute which designates whether a recording area permits rewriting or not | Kyosuke Yoshimoto, M. C. Rao, Hiroyuki Ohata, Teruo Furukawa, Junichi Kondo +1 more | 2002-08-13 |
| 6396799 | Optical disk drive device using an optical disk having a continuous information track formed of alternating land/groove revolutions | Masato Nagasawa, Tsuyoshi Katayama, Kouichi Komawaki | 2002-05-28 |
| 6396798 | Optical disc with a rewritable area and a read-only area | Yoshinari Takemura, Shunji Ohara, Takashi Ishida, Isao Satoh, Masato Nagasawa +1 more | 2002-05-28 |
| 6341105 | Light beam condensing apparatus and method of driving optical recording medium by applying the apparatus | — | 2002-01-22 |
| 6337845 | Optical disk format having a continuous recording area formed of alternating land and groove revolutions, optical disk drive apparatus, and optical disk tracking method | Hiroyuki Oohata, Masato Nagasawa, Kenji Gotoh, Yoshinobu Ishida | 2002-01-08 |
| 6337839 | Optical disk recording medium and optical disk drive apparatus | Hiroyuki Ohata, Masato Nagasa, Kenji Gotoh, Yoshinobu Ishida | 2002-01-08 |