Issued Patents 1997
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5663936 | Magneto-optic recording medium suited for mark edge recording system and having magnetic layer made of composition modulated material | Tsutomu Tanaka, Haruhiko Izumi, Tomonori Ikeya | 1997-09-02 |
| 5623458 | Method for reproducing information data recorded on a magneto-optical device having plural magnetic layers | Koji Matsumoto | 1997-04-22 |
| 5599605 | Magneto-optical recording medium and method for producing the same | Ken Tamanoi, Sumio Kuroda, Koji Matsumoto | 1997-02-04 |