Issued Patents All Time
Showing 1–10 of 10 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5187694 | Magneto-optical recording medium comprising recording layer and thermal bias layer, and method for recording, erasing and overwriting on the medium | Hiromichi Kobori | 1993-02-16 |
| 5175714 | Method of magneto-optically recording/erasing information and magneto-optical information storage medium including recording and bias layers satisfying certain conditions | Akira Kikitsu, Sumio Ashida | 1992-12-29 |
| 5105400 | Method of magneto-optically recording and erasing information onto a magneto-optical information storage medium | Akira Kikitsu, Sumio Ashida | 1992-04-14 |
| 4954841 | Optical recording medium and method of manufacturing the same | Norio Ozawa, Nobuaki Yasuda | 1990-09-04 |
| 4922462 | Reversible memory structure for optical reading and writing and which is capable of erasure | Sumio Ikegawa, Yoshiaki Terashima, Nobuaki Yasuda, Shuichi Komatsu, Shinji Arai | 1990-05-01 |
| 4832980 | Magneto-optical recording medium and manufacturing thereof | Nobuaki Yasuda, Yoshiaki Terashima, Senji Shimanuki | 1989-05-23 |
| 4782477 | Optical recording medium with fluorine resin adhesive | Yoshiaki Terashima, Nobuaki Yasuda, Akio Hori | 1988-11-01 |
| 4701880 | Optical system for recording/reproducing information by means of a dielectric breakdown effected by photoswitching of a bias-voltage | — | 1987-10-20 |
| 4666759 | Data recording medium | Hideki Ohkawa, Yoshiaki Terashima, Nobuaki Yasuda | 1987-05-19 |
| 4634635 | Black ornament | Yasuhisa Shiraishi, Takashi Fujita, Yoshiharu Ochi, Masahiko Hirose, Takashi Ishigami | 1987-01-06 |