Issued Patents 2002
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6462903 | Disc-shaped recording medium and disc driving system | Takashi Yamada, Naoto Kojima, Kazuo Takahashi, Toshio Mamiya | 2002-10-08 |
| 6411457 | Recording/reproducing method and recording/reproducing apparatus | Keitaro Yamashita, Shunji Okada, Masayuki Nakayama, Minoru Watanabe | 2002-06-25 |