Issued Patents 2003
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6661746 | Rewritable recording medium with multiple reproduction path information for common digital data | Masataka Minami, Masayuki Kozuka | 2003-12-09 |
| 6647496 | Semiconductor memory card | Hideki Matsushima, Teruto Hirota, Tomokazu Ishikawa, Shinji Inoue, Masayuki Kozuka | 2003-11-11 |
| 6636773 | Semiconductor memory card, apparatus for recording data onto the semiconductor memory card, and apparatus for reproducing data of the semiconductor memory card | Hideki Matsushima, Teruto Hirota, Tomokazu Ishikawa, Shinji Inoue, Masayuki Kozuka | 2003-10-21 |
| 6615192 | Contents copying system, copying method, computer-readable recording medium and disc drive copying contents but not a cipher key via a host computer | Mitsuhiro Inoue, Shunji Harada, Masayuki Kozuka, Shoichi Aoyama, Yukako Ohtani +1 more | 2003-09-02 |