Issued Patents 1997
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5608716 | Optical recording/reproducing apparatus including a semiconductor laser having a plurality of radiative portions having different physical characteristics | Takeshi Yamawaki | 1997-03-04 |
| 5594711 | Optical recording and reproducing apparatus using a plurality of light spots for recording and reproducing | — | 1997-01-14 |