Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5225793 | Voltage-controlled oscillator system | Fumikazu Ohkubo, Tetsuo Nakamura | 1993-07-06 |
| 4674121 | Circuit for detecting the level of noise in FM signal for use in AM/FM receiver | Masami Miura | 1987-06-16 |
| 4390746 | Stereo signal demodulator having an improved separation characteristic | Kazuyuki Doi | 1983-06-28 |
| 4380823 | Multi-channel signal processing circuit formed in a semiconductor integrated circuit | Kazuyuki Doi | 1983-04-19 |