Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7386328 | Receiver | Hiroya Yamamoto | 2008-06-10 |
| 7369629 | FSK signal demodulation circuit | — | 2008-05-06 |
| 7330708 | Tuning circuit with amplitude attenuation function and integrated circuit for radio communication apparatus | Hiroya Yamamoto, Keitarou Sekine, Akira Hyougo, Keiji Morijiri | 2008-02-12 |
| 7271636 | Hysteresis comparator and reset signal generator | Hiroya Yamamoto, Shinji Osugi | 2007-09-18 |
| 7171178 | Tuning circuit having amplitude-varying function | Hiroya Yamamoto, Keitaro Sekine, Akira Hyogo, Keiji Morijiri | 2007-01-30 |
| 6108428 | Tone control device and sound volume/tone control device for reducing noise at the time of tone modification | Masaaki Suzuki | 2000-08-22 |