Issued Patents 1994
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5329517 | Optical information recording and reproducing apparatus utilizing a plurality of recording light spots | Eiji Yamaguchi, Hiroaki Hoshi, Masakuni Yamamoto, Hideki Morishima | 1994-07-12 |
| 5297128 | Optical information recording/reproducing apparatus including means for varying intensity of a preheating light beam | Eiji Yamaguchi, Hiroaki Hoshi, Masakuni Yamamoto, Hideki Morishima | 1994-03-22 |