Issued Patents All Time
Showing 51–63 of 63 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4677602 | Device for controlling recording track jump operations with over-run correction | Tetsuo Akiyama | 1987-06-30 |
| 4646278 | Pick-up positioning apparatus for data playback apparatus | — | 1987-02-24 |
| 4609948 | Apparatus to control time base fluctuation in a signal from a device for reproducing recorded information from a recording disc | — | 1986-09-02 |
| 4607357 | Optical pickup apparatus for recorded information with tilt indication | — | 1986-08-19 |
| 4580166 | Synchronizing signal separator network | — | 1986-04-01 |
| 4539602 | Time axis correction device for multiplex information-carrying signal obtained from recording medium | — | 1985-09-03 |
| 4528599 | FM angular modulation system for video signal recording | — | 1985-07-09 |
| 4512005 | Information reproducing apparatus in a recording disc player | — | 1985-04-16 |
| 4506313 | Time axis correction device for a signal reproduced from a recording medium | — | 1985-03-19 |
| 4459621 | High frequency crosstalk eliminating circuit in video disc reproducing device | — | 1984-07-10 |
| 4430152 | Process for fabricating a semiconductor device | — | 1984-02-07 |
| 4280215 | Focussing lens servo driving device for optical information reading device | — | 1981-07-21 |
| 4268745 | Tracking servo drawing device in optical type information reading device | — | 1981-05-19 |