Issued Patents 1997
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5604002 | Optical recording medium and reproducing method therefor | Toshio Harada, Kazuhiko Kuroki, Fumio Tatezono | 1997-02-18 |
| 5592461 | Methods of recording and reproducing information using an optical recording medium | Masahiro Irie | 1997-01-07 |