Issued Patents All Time
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7522479 | Domain wall displacement for magneto-optical recording medium having multiple magnetic layers | Yukari Aoki, Yasushi Hozumi | 2009-04-21 |
| 7376055 | Method of annealing optical recording medium | Yasushi Hozumi, Yukari Aoki | 2008-05-20 |
| 6454915 | Information recording medium and method for producing the same | Tsutomu Shiratori | 2002-09-24 |
| 6180208 | Information recording medium and method for producing the same | Tsutomu Shiratori | 2001-01-30 |
| 5525379 | Method for manufacturing an optical recording medium | Kunio Takada, Akio Koganei, Toshimori Miyakoshi, Toshio Adachi | 1996-06-11 |
| 5428586 | Magneto-optical recording method using a magneto-optical recording medium having two or more magnetic layers to allow recording and reproduction to be effected simultaneously and magneto-optical recording medium used in the method | Tadashi Kobayashi, Koyo Hasegawa, Masakuni Yamamoto | 1995-06-27 |
| 4920007 | Magneto-optical recording medium with 9:1-1:9 aluminum or silicon oxide and aluminum or silicon nitride mixture | Mitsuharu Sawamura, Kazuhiko Kikuchi | 1990-04-24 |