| Patent application number | Description | Published |
|---|
| 20080290969 | Piezoelectric Resonator, Piezoelectric Filter, and Duplexer and Communication Device Using the Same - Three or more piezoelectric resonators having resonance frequencies different from one another are realized on the same substrate. First through third frequency adjustment layers | 11-27-2008 |
| 20090014295 | ELECTROMECHANICAL SWITCH, FILTER USING THE SAME, AND COMMUNICATION APPARATUS - An electromechanical switch includes a first beam, a second beam arranged in parallel with the first beam and connected to the first beam through a connecting portion, a first electrode formed so as to have a first gap with respect to the first beam, a voltage applying portion which applies a voltage between the first beam and the first electrode, and a second electrode formed so as to have a second gap with respect to the second beam. The second gap is greater than the first gap. The first beam is displaced when the voltage applying portion applies the voltage between the first beam and the first electrode, so that switching between the second beam and the second electrode is performed in a state that the first beam is not electrically connected to the first electrode. | 01-15-2009 |
| 20090102319 | ACOUSTIC RESONATOR AND FILTER - A first supporting section | 04-23-2009 |
| 20090121809 | Thin Film Elastic Wave Resonator - An upper electrode ( | 05-14-2009 |
| 20090133237 | PIEZOELECTRIC DEVICE AND METHOD OF MANUFACTURING PIEZOELECTRIC RESONATORS - A piezoelectric resonator comprises a piezoelectric material layer | 05-28-2009 |
| 20090273416 | FREQUENCY-VARIABLE ACOUSTIC THIN FILM RESONATOR, FILTER AND COMMUNICATION APPARATUS USING THE SAME - An acoustic thin film resonator including: a first piezoelectric thin film | 11-05-2009 |
| 20090277762 | MICROMACHINE SWITCH, FILTER CIRCUIT, DUPLEXER CIRCUIT, AND COMMUNICATION DEVICE - A micromachine switch of the present invention is a micromachine switch for switching an electrical connection between signal electrodes in accordance with control signals from outside which include: a first control signal for electrically connecting the signal electrodes between which a signal is to be passed; and a second control signal for disconnecting the electrical connection between the signal electrodes. The micromachine switch comprises: a substrate; a rotating body provided on the substrate, which is rotatable on the substrate; a movable electrode provided on the rotating body; a first signal electrode, one end of which is electrically connected to one end of the movable electrode, and another end of which is provided on the substrate; a second signal electrode which is provided near the rotating body so as to be positioned such that a rotation of the rotating body causes the second signal electrode to be electrically connected to another end of the movable electrode; and a drive section for causing, in accordance with the first control signal, the rotating body to rotate until the rotating body is in such a position as to allow said another end of the movable electrode and the second signal electrode to be electrically connected, and for causing, in accordance with the second control signal, the rotating body to rotate until the rotating body is in such a position as to disconnect an electrical connection between said another end of the movable electrode and the second signal electrode. | 11-12-2009 |
| 20090315643 | FILTER DEVICE - A high frequency filter includes an inductor, a serial resonance circuit including an inductor and capacitors, a serial resonance circuit including an inductor and capacitors, and a varactor diode connected between a connection point between the capacitor and the capacitor and a connection point between the capacitor and the capacitor. A controller simultaneously changes two attenuation pole frequencies of the filter device by changing a capacitance of the varactor diode. | 12-24-2009 |
| 20100052476 | PIEZOELECTRIC FILTER AND METHOD FOR MANUFACTURING THE SAME - A piezoelectric filter of the present invention is provided with first and second piezoelectric vibrators, each having a substrate, a lower load film formed on the substrate, a lower electrode formed on the lower load film, a piezoelectric element formed on the lower electrode, an upper electrode formed on the piezoelectric element and an upper load film formed on the upper electrode, and the piezoelectric filter is configured by electrically connecting the first and second piezoelectric vibrators to each other, and the piezoelectric element of the first piezoelectric vibrator and the piezoelectric element of the second piezoelectric vibrator correspond to respectively different areas of the same piezoelectric element; thus, the resonance frequencies of the first and second piezoelectric vibrators are adjusted by the respective lower load films and upper load films of the first piezoelectric vibrator and the second piezoelectric vibrator so that the resonance frequencies of the first and second piezoelectric vibrators are made different from each other. | 03-04-2010 |
| 20100291946 | HIGH-FREQUENCY FILTER - A digital television broadcast receiving section ( | 11-18-2010 |
| 20110109195 | VIBRATION POWER GENERATOR, VIBRATION POWER GENERATING DEVICE AND COMMUNICATION DEVICE HAVING VIBRATION POWER GENERATING DEVICE MOUNTED THEREON - Generating efficiency of a vibration power generating device, which generates power by vibration in the biaxial direction, is improved. The vibration power generating device is provided with: a first substrate ( | 05-12-2011 |
