Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5202878 | Optical recording and reproducing method and apparatus for the same | Jun Kanehira | 1993-04-13 |
| 5049428 | Optical information recording medium | Toshiyuki Kanno, Yasuji Nagata | 1991-09-17 |
| 5019476 | Optical recording medium | Toshiyuki Kanno, Seiji Kondo, Yasuji Nagata, Jun Kanehira, Hideshi TAKAHASHI +1 more | 1991-05-28 |