Issued Patents 1997
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5642338 | Information recording medium and apparatus and method for recording and reproducing information | Yoshihisa Fukushima, Masahiro Inagaki, Yasushi Azumatani | 1997-06-24 |
| 5596564 | Information recording medium and apparatus and method for recording and reproducing information | Yoshihisa Fukushima, Masahiro Inagaki, Yasushi Azumatani | 1997-01-21 |