Issued Patents 2002
Showing 1–10 of 10 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6496807 | Recording medium, recording method and recording apparatus incorporating anti-tamper features involving writing billing information into a write-once area | Tatsuya Inokuchi, Masayuki Obata, Shuichi Ito, Kazuko Sakurai | 2002-12-17 |
| 6487293 | Method and apparatus for reproducing ciphered data | Isao Kawashima, Akira Kurihara, Yoshitomo Osawa, Hideo Owa | 2002-11-26 |
| 6463153 | Method for transmitting data apparatus for recording data medium for recording data and apparatus for reproducing data | Yoshitomo Osawa, Akira Kurihara, Isao Kawashima, Hideo Owa | 2002-10-08 |
| 6445795 | Data recording method and apparatus, data record medium and data reproducing method and apparatus | Isao Kawashima, Akira Kurihara, Yoshitomo Osawa, Hideo Owa | 2002-09-03 |
| 6438084 | Data recording apparatus and method, data playback apparatus and method, and optical disc | Tetsuji Kawashima, Yukio Shishido, Tatsuya Inokuchi | 2002-08-20 |
| 6363209 | Signal recording/reproducing method and apparatus, signal record medium and signal | Isao Kawashima, Yoshitomo Osawa, Akira Kurihara, Shozo Masuda | 2002-03-26 |
| 6363148 | Method, apparatus and computer program for activating an alternate encryption using an identifier embedded in data | — | 2002-03-26 |
| 6344940 | Method and apparatus for adding 1/f fluctuation to an audio signal | Heitaro Nakajima | 2002-02-05 |
| 6345146 | Signal recording/reproducing method and apparatus, signal record medium and signal transmission/reception method and apparatus | Isao Kawashima, Yoshitomo Osawa, Akira Kurihara, Shozo Masuda | 2002-02-05 |
| 6345145 | Signal recording/reproducing method and apparatus, signal record medium and signal transmission/reception method and apparatus | Isao Kawashima, Yoshitomo Osawa, Akira Kurihara, Shozo Masuda | 2002-02-05 |