Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5014257 | Optical readout circuit for producing waveforms having sharp edges | Toshihiko Takahashi | 1991-05-07 |
| 4975897 | Reading circuit for an optical information storing apparatus | — | 1990-12-04 |