Issued Patents 1997
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5703867 | Optical recording medium having a dummy area at leading and/or trailing positions of recording area | Yasushi Miyauchi, Motoyasu Terao, Akemi Hirotsune, Hiroyuki Minemura | 1997-12-30 |
| 5654058 | Magneto-optical disk | Fumiyoshi Kirino, Shigenori Okamine, Noriyuki Ogihara, Masahiko Takahashi, Norio Ohta +1 more | 1997-08-05 |
| 5648949 | Method and apparatus for information reproduction at variable reference level | Hisataka Sugiyama, Kiyoshi Matsumoto | 1997-07-15 |
| 5614938 | Three-dimensional recording and reproducing apparatus | Hisataka Sugiyama, Takeshi Maeda, Kiyoshi Matsumoto, Motoyasu Terao, Shigenori Okamine +1 more | 1997-03-25 |