Issued Patents 1994
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5321675 | Pit spacing in the servo field of an optical disk for speed and direction detection and data retrieval | Osamu Ito, Masaharu Ogawa, Kyosuke Yoshimoto, Kunimaro Tanaka, Masafumi Ototake | 1994-06-14 |
| 5309415 | Information recording method for overwriting a magneto-optic recording medium with two intensities of light beams | Koichi Takeuchi, Osamu Ito, Kyosuke Yoshimoto, Kunimaro Tanaka, Isao Watanabe +6 more | 1994-05-03 |
| 5278815 | Digital data reproducing apparatus | Akira Mashimo, Mitsumasa Kubo, Fumio Hishiyama, Masayoshi Shimamoto | 1994-01-11 |