Issued Patents All Time
Showing 1–25 of 49 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9657602 | Exhaust heat recovery device for internal combustion engine and exhaust heat recovery method for internal combustion engine | — | 2017-05-23 |
| 9289860 | Jig used for repairing pin-coupling component and method using the same | Ken Ubukata, Mitsuaki Mukai, Masayuki Tomioka | 2016-03-22 |
| 7587182 | Receiver input circuit | — | 2009-09-08 |
| 7415255 | Scanning receiver | Kiyoshi Wakui, Nobuaki Yokoyama | 2008-08-19 |
| 7121614 | Air deflector | — | 2006-10-17 |
| 7088790 | Circuit for detecting a center level of a FSK demodulated signal to correct same | — | 2006-08-08 |
| 7005950 | Negative impedance converter | — | 2006-02-28 |
| 6985053 | Negative resistance circuit | — | 2006-01-10 |
| 6954123 | Tuning circuit | — | 2005-10-11 |
| 6933775 | Circuit for detecting and correcting central level of FSK demodulation signal | — | 2005-08-23 |
| 6870447 | Tuning circuit | — | 2005-03-22 |
| 6836199 | Tuning circuit | — | 2004-12-28 |
| 6816005 | All pass filter | — | 2004-11-09 |
| 6803812 | Active filter | — | 2004-10-12 |
| 6628181 | Tuning circuit having a resonance circuit and a negative resistance circuit | — | 2003-09-30 |
| 6570937 | Frequency scanning FSK receiver | — | 2003-05-27 |
| 6545570 | Tuning circuit including a negative impedance circuit | — | 2003-04-08 |
| 6546060 | Direct modulating FSK transmitter for MCA | — | 2003-04-08 |
| 6529565 | Circuit for detecting a center error to correct same | — | 2003-03-04 |
| 6504458 | Tuning circuit with controlled negative resistance | — | 2003-01-07 |
| 6480060 | FSK signal demodulating integration-discharge circuit | — | 2002-11-12 |
| 6456174 | Tuning circuit | — | 2002-09-24 |
| 6396882 | Frequency scanning type receiver | — | 2002-05-28 |
| 6396328 | Variable capacitance circuit | — | 2002-05-28 |
| 6373332 | Biquad notch filter | — | 2002-04-16 |