| Patent application number | Description | Published |
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| 20090064783 | INERTIAL FORCE SENSOR - An inertial force sensor includes a detecting device which detects an inertial force, the detecting device having a first orthogonal arm and a supporting portion, the first orthogonal arm having a first arm and a second arm fixed in a substantially orthogonal direction, and the supporting portion supporting the first arm. The second arm has a folding portion. In this configuration, there is provided a small inertial force sensor which realizes detection of a plurality of different inertial forces and detection of inertial forces of a plurality of detection axes. | 03-12-2009 |
| 20090120187 | INERTIAL FORCE SENSOR - An inertial force sensor is composed of a plurality of arms and an oscillator having a base for linking the arms, in which a trimming slit is formed on a part of the arm except for a ridge portion, thus controlling damage to a tuning fork arm to be caused by the trimming. | 05-14-2009 |
| 20090183569 | COMBINED SENSOR - A combined detection element ( | 07-23-2009 |
| 20090266163 | SENSOR - A sensor includes detecting element ( | 10-29-2009 |
| 20090320594 | INERTIA FORCE SENSOR - An inertia force sensor includes a detection element having two orthogonal arms each formed by connecting one first arm orthogonally to two second arms; a support portion for supporting the two first arms; and two fixing arms connected at one end thereof to the support portion and fixed at the other end thereof to a mounting substrate. The second arms include opposing portions formed by bending the second arms to face the main portions thereof. The second arms are connected at their ends to weight parts, which include recesses to which the ends of the second arms are connected. | 12-31-2009 |
| 20100071468 | INERTIA FORCE SENSOR AND COMPOSITE SENSOR FOR DETECTING INERTIA FORCE - An inertia force sensor includes a detection element having an acceleration detection section ( | 03-25-2010 |
| 20100229645 | INERTIA FORCE SENSOR - Inertial force sensor includes detecting element that detects inertial force. Detecting element includes: two first orthogonal arms each having first arm and second arm that are connected to each other in a substantially orthogonal direction; support portion that supports two first arms; fixing arms; and weights. Second arms include: bent portions; facing portions that are bent at bent portions so as to face second arms; driving electrodes that are formed in two facing portions facing each other, and drive and vibrate facing portions; and detection electrodes that are formed in the other two facing portions facing each other, and detect the distortion of facing portions. According to this structure, it is possible to achieve small inertial force sensor capable of detecting a plurality of different inertial forces and inertial forces acting on a plurality of detection axes. | 09-16-2010 |
| Patent application number | Description | Published |
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| 20090140780 | DRIVING DEVICE AND DRIVING METHOD OF CAPACITIVE LOAD AND LIQUID JET PRINTING APPARATUS - A driving device of a capacitive load includes a modulator that executes pulse modulation on a drive waveform signal. An inductor performs low-pass filtering on the modulated drive waveform signal and outputs the low-pass filtered signal as a drive signal towards a load capacitor as the capacitive load. A load selection control circuit selects a load capacitor and a dummy load capacitor to be connected to the inductor so that a sum of the capacitances of the selected load capacitor and dummy load capacitor is kept within a predetermined range. A feedback circuit executes a filtering process on the drive signal so that a frequency characteristic of a passing band of the drive signal becomes substantially flat. The resulting signal is provided to the modulator as a feedback signal. The modulator executes the pulse modulation on a difference value between the drive waveform signal and the feedback signal. | 06-04-2009 |
| 20090167798 | LIQUID JET APPARATUS - A liquid jet apparatus according to the present invention includes a drive waveform generator adapted to generate a drive waveform signal, a modulator adapted to execute pulse modulation on the drive waveform signal, a digital power amplifier adapted to power-amplify the modulated signal, on which the pulse modulation is executed by the modulator, with a pair of switching elements push-pull coupled with each other, a lowpass filter adapted to smooth the amplified digital signal obtained by the power-amplification of the digital power amplifier, and a modulation period modification circuit adapted to modify a modulation period of the pulse modulation of the modulator based on data of the drive waveform signal. | 07-02-2009 |
| 20090213152 | LIQUID JET APPARATUS - A liquid jet apparatus according to the invention is a liquid jet apparatus adapted to emit a jet of a liquid by driving an actuator of a liquid jet head with a drive signal including a digital power amplifier and a low pass filter provided to the liquid jet head so as to correspond to the actuator, and adapted to power-amplify and smooth a modified signal from a control circuit to form the drive signal, wherein the low pass filter is coupled directly with the actuator, and the digital power amplifier is provided with a pair of switching elements and a gate drive circuit, and ON-OFF controls the gate drive circuit based on print data, thereby performing one of output and halt of the drive signal. | 08-27-2009 |
| 20090213153 | LIQUID JET APPARATUS - A liquid jet apparatus according to the invention is a liquid jet apparatus adapted to emit a jet of a liquid by driving an actuator of a liquid jet head with a drive signal including a digital power amplifier and a low pass filter provided to the liquid jet head so as to correspond to the actuator, and adapted to power-amplify and smooth a modified signal from a control circuit to form the drive signal. | 08-27-2009 |
| 20090273625 | LIQUID JET APPARATUS AND PRINTING APPARATUS - A liquid jet apparatus according to the present invention includes a drive circuit adapted to apply a drive signal to an actuator of a liquid jet head, and a power supply voltage control circuit adapted to control a power supply voltage to the drive signal to be a waveform voltage set previously based on a reference signal obtained from one of the drive signal and a signal in a generation stage of the drive signal. | 11-05-2009 |
