Issued Patents 2002
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6424477 | Information signal recording and playback method and apparatus therefor | Seiichi Saito, Toshifumi Takeuchi, Masafumi Nakamura, Junji Shiokawa | 2002-07-23 |
| 6404781 | Data transmission method for embedded data, data transmitting and reproducing apparatuses and information recording medium therefor | Toshifumi Takeuchi, Hiroshi Yoshiura, Takao Arai | 2002-06-11 |
| 6347353 | Information medium having digital signals recorded thereon | Hiroshi Hirayama, Masayuki Hirabayashi, Yutaka Nagai, Toshifumi Takeuchi | 2002-02-12 |