Issued Patents 1989
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4855992 | Reversible optical recording medium with an optothermally deformable recording layer | Sumio Ikegawa, Akio Hori, Shuichi Komatsu, Shinji Arai | 1989-08-08 |
| 4845000 | Radiation sensitive carrier body utilized as stamper structure | Yoshikatsu Takeoka, Akio Hori, Norio Ozawa | 1989-07-04 |
| 4839861 | Information recording medium rewritable by utilizing two metastable phases of a recording layer and method using the same | Sumio Ikegawa, Shuichi Komatsu, Shinji Arai, Sumio Ashida | 1989-06-13 |
| 4832980 | Magneto-optical recording medium and manufacturing thereof | Katsutarou Ichihara, Yoshiaki Terashima, Senji Shimanuki | 1989-05-23 |