Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7478413 | Optical recording medium | Osamu Ishizaki | 2009-01-13 |
| 7001655 | Optical recording medium | Kenjirou Kiyono, Akio Okamuro | 2006-02-21 |
| 5530641 | Optical recording medium having grooves and lands and/or plural pit lines, and reproducing apparatus therefor | — | 1996-06-25 |
| 5202878 | Optical recording and reproducing method and apparatus for the same | Naoyuki Ueno | 1993-04-13 |
| 5019476 | Optical recording medium | Toshiyuki Kanno, Naoyuki Ueno, Seiji Kondo, Yasuji Nagata, Hideshi TAKAHASHI +1 more | 1991-05-28 |
| 4440585 | Amorphous magnetic alloy | — | 1984-04-03 |