Issued Patents 1982
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4340953 | Information recording medium and recording and reproducing system using the same | Yasuaki Nishida, Toshimi Yamato, Norikazu Sawazaki, Yoshio Nishi, Masaharu Watanabe +1 more | 1982-07-20 |