Issued Patents 1994
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5365535 | Semiconductor laser and beam splitting devices, and optical information recording/reproducing, optical communication, and optomagnetic recording/reproducing apparatuses using semiconductor laser and beam splitting devices | Hiroaki Hoshi, Masakuni Yamamoto, Sotomitsu Ikeda | 1994-11-15 |
| 5329517 | Optical information recording and reproducing apparatus utilizing a plurality of recording light spots | Susumu Matsumura, 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 | Susumu Matsumura, Hiroaki Hoshi, Masakuni Yamamoto, Hideki Morishima | 1994-03-22 |