Issued Patents 1997
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5701279 | Optical information recording-reproducing apparatus including a light beam detector being divided by a division line extending in a direction perpendicular to an information track | Susumu Matsumura, Masakuni Yamamoto, Eiji Yamaguchi | 1997-12-23 |
| 5668872 | Information processing method and system | Hideki Morishima, Kiyonobu Endo, Susumu Matsumura, Koyo Hasegawa, Masakuni Yamamoto +2 more | 1997-09-16 |
| 5610897 | Optical information reproducing apparatus | Masakuni Yamamoto, Susumu Matsumura, Eiji Yamaguchi | 1997-03-11 |