Issued Patents 2003
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6657831 | Information signal recording and playback method and apparatus therefor | Seiichi Saito, Toshifumi Takeuchi, Masafumi Nakamura, Junji Shiokawa | 2003-12-02 |
| 6578149 | METHOD FOR REPRODUCING DATA, APPARATUS FOR REPRODUCING DATA, METHOD FOR CODING DATA, METHOD FOR RECORDING DATA, APPARATUS FOR RECORDING AND REPRODUCING DATA, METHOD FOR AUTHENTICATION, SEMICONDUCTOR CHIP, REPRODUCING APPARATUS, RECORDING APPARATUS AND DATA PROCESSING APPARATUS | Toshifumi Takeuchi, Hiroyuki Kimura, Takao Arai, Hiroshi Yoshiura | 2003-06-10 |