Issued Patents 1997
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5703855 | Optical disk apparatus and recording and reading method for an optical disk using the same | Tsuyoshi Toda, Horishi Ide, Hisataka Sugiyama, Atsushi Saito, Hiroyuki Tsuchinaga +6 more | 1997-12-30 |
| 5654058 | Magneto-optical disk | Harukazu Miyamoto, Shigenori Okamine, Noriyuki Ogihara, Masahiko Takahashi, Norio Ohta +1 more | 1997-08-05 |
| 5642343 | Magnetooptic disc apparatus and recording medium | Tsuyoshi Toda, Kazuo Shigematsu, Seiichi Mita, Toshimitsu Kaku, Takeshi Maeda +2 more | 1997-06-24 |