Issued Patents 2005
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6971024 | Recording medium, data recording method and apparatus, data reproducing method and apparatus, and copying control method | Yoichiro Sako | 2005-11-29 |
| 6852383 | Optical disc, recording apparatus and method for optical disc, and its reproducing method | Yoichiro Sako, Takashi Kihara, Tomihiro Nakagawa | 2005-02-08 |
| 6853613 | Optical recording medium, and method and apparatus for reproduction | Yoichiro Sako, Hiroshi Ogawa | 2005-02-08 |