Issued Patents 1982
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4340953 | Information recording medium and recording and reproducing system using the same | Soichi Iwamura, Yasuaki Nishida, Toshimi Yamato, Norikazu Sawazaki, Masaharu Watanabe +1 more | 1982-07-20 |
| 4327476 | Method of manufacturing semiconductor devices | Hiroshi Iwai | 1982-05-04 |