Issued Patents All Time
Showing 1–11 of 11 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4742505 | Optical information recording and reproducing memory system | Toyoaki Takeuchi, Yoshiaki Ikeda | 1988-05-03 |
| 4719612 | Method of detecting defects on an optical record medium and a device for carrying out the method | — | 1988-01-12 |
| 4683560 | Microprocessor controlled focussing servo acquisition | Toyoaki Takeuchi, Ken Ohshima, Yoshiaki Ikeda, Masaharu Sakamoto | 1987-07-28 |
| 4677603 | Optical recording and/or reproducing apparatus with synchronous fine and coarse adjusting mechanisms | — | 1987-06-30 |
| 4631712 | Optical disk apparatus with beam energy correction for deviations in inclination | Nobuhide Matsubayashi, Kiichi Kato, Masaharu Sakamoto | 1986-12-23 |
| 4611317 | Optical disk apparatus | Toyoaki Takeuchi, Ken Ohshima, Yoshiaki Ikeda, Masaharu Sakamoto | 1986-09-09 |
| 4611316 | Actuator operating center detecting circuit and optical disk apparatus with the detecting circuit | Toyoaki Takeuchi, Ken Ohshima, Yoshiaki Ikeda, Masaharu Sakamoto | 1986-09-09 |
| 4468709 | Dual-loop jitter correction circuit for correcting the time base error of an information signal | — | 1984-08-28 |
| 4422182 | Digital microphone | — | 1983-12-20 |
| 4316657 | Apparatus for electrically detecting focal point of cameras or the like optical devices | Takeomi Suzuki, Masatoshi Ida | 1982-02-23 |
| 4255654 | Method of electrically detecting focal point of cameras or the like optical devices | Takeomi Suzuki, Kenichi Oinoue, Masahiro Aoki, Masatoshi Ida | 1981-03-10 |