| Patent application number | Description | Published |
|---|
| 20080218172 | POTENTIAL MEASURING APPARATUS - A potential measuring apparatus has a detection electrode on which an electric charge is induced according to a potential of a detection object, and a modulator for altering the generated quantity of the electric charge. The detection electrode has at least one depressed portion on a surface opposite to the detection object. | 09-11-2008 |
| 20080264167 | SENSOR - A sensor includes a detecting oscillator supported in such a manner that the detecting oscillator is allowed to oscillate; first and second electrodes; a detecting electrode facing the first and second electrodes; and signal supplying units configured to supply first and second AC signals respectively to the first and second electrodes. Either the first and second electrodes or the detecting electrode is provided on the detecting oscillator. The first and second AC signals respectively supplied to the first and second electrodes by the signal supplying units cause the detecting oscillator to be maintained at a neutral position for detection without being displaced when no physical quantity is input. When the detecting oscillator is displaced, an input physical quantity is detected on the basis of a signal corresponding to charges induced at the detecting electrode by the first and second AC signals supplied respectively to the first and second electrodes. | 10-30-2008 |
| 20080284445 | POTENTIAL MEASUREMENT APPARATUS AND IMAGE FORMING APPARATUS - A potential measurement apparatus is provided which can suitably maintain the oscillation state of an oscillator including a detection electrode and stably measure the potential of a measurement object. The potential measurement apparatus includes a bearing part, an elastic supporting part supported by the bearing part, an oscillator movably supported by the elastic supporting part, detection electrodes installed in the oscillator, a drive mechanism driving the oscillator and a signal detection unit. The signal detection unit is connected to the detection electrodes to detect electrical signals appearing in the detected electrodes. A stress detecting element for generating an electric signal according to the stress of the elastic suspension part | 11-20-2008 |
| 20080316560 | OPTICAL DEFLECTOR - The optical deflector includes a deflector, a vibration detector, a driving signal generator, a modulation timing signal generator, and a deflection detector. The deflector has a vibrational system having a movable body with a light deflecting member, and deflects light from a light source by the movable body. The vibration detector detects the vibration condition of the vibrational system of the deflector. The driving signal generator generates a driving signal for driving the vibrational system of the deflector. The modulation timing signal generator generates a modulation timing signal as the reference time for regulating the amount of light from the light source. The deflection detector detects the deflection condition of light deflected by the deflector. The driving signal generator generates the driving signal based on information of the vibration condition detected by the vibration detector, and the modulation timing signal generator generates the modulation timing signal based on information of the deflection condition detected by the deflection detector. | 12-25-2008 |
| 20090061537 | METHOD OF MANUFACTURING OSCILLATOR DEVICE - A method of manufacturing oscillator devices each having an oscillator and a resilient supporting member for supporting the oscillator for oscillatory motion, includes a step of processing one and the same substrate to form oscillators and resilient supporting members of oscillator devices so that oscillators of adjacent oscillator devices are connected to each other, a step of forming or placing a magnetic material so that it extends across the connected oscillators of the adjacent oscillator devices, and a step of simultaneously cutting and separating the connected oscillators and the magnetic material formed or placed to extend across the connected oscillators, whereby oscillator devices such as oscillatory type actuators having good reliability and performance evenness can be manufactured with a good productivity. | 03-05-2009 |
| 20090193893 | ANGULAR VELOCITY SENSOR - Provided is an angular velocity sensor including: a reference vibrator supported so as to generate reciprocating rotational vibration about a first rotation axis as a center; a detection vibrator supported by the reference vibrator so as to generate reciprocating rotational vibration about a second rotation axis, which is different from the first rotation axis, as a center; a reference vibration generating unit for allowing the reference vibrator to generate reciprocating rotational vibration; and a detection unit for detecting a displacement amount of the detection vibrator with respect to the reference vibrator, which is in association with the reciprocating rotational vibration of the detection vibrator. | 08-06-2009 |
| 20090205423 | ANGULAR VELOCITY SENSOR - An angular velocity sensor includes a supporting substrate, a detecting portion, a displacement detecting portion, a first driving portion, and a second driving portion. The detecting portion is supported by the supporting substrate movably in at least a free direction. The displacement detecting portion detects a displacement of the detecting portion in the free direction. The first driving portion excites a first reference oscillation of at least a portion of the detecting portion so that a first Coriolis' force in the free direction is generated in response to an angular velocity about a first axis. The second driving portion excites a second reference oscillation of at least a portion of the detecting portion so that a second Coriolis' force in the free direction is generated in response to an angular velocity about a second axis. | 08-20-2009 |
| 20100019779 | POTENTIAL MEASUREMENT APPARATUS AND IMAGE FORMING APPARATUS - A potential measurement apparatus for measuring a surface potential of an object of measurement detects a change in electric charge induced at a detection electrode due to electrostatic induction by changing a distance between the detection electrode and the object of measurement in accordance with a predetermined period, using a neutral distance as reference, as a signal representing a change in electric current. The potential measurement apparatus includes a first detection unit for detecting a signal representing a fundamental period of the change in electric current and a signal representing a second harmonic period, a second detection unit for detecting information representing a capacitance between the detection electrode at the neutral distance and the object of measurement and an arithmetic unit for computationally obtaining information on the surface potential of the object of measurement, with eliminating an influence of the neutral distance and the capacitance, according to an outcome of detection of the first detection unit and an outcome of detection of the second detection unit. | 01-28-2010 |
| 20100043546 | SENSOR AND METHOD OF MANUFACTURING THE SAME - Provided is a sensor including a movably supported movable element and an opposing member. The sensor detects a relative positional relationship between the movable element and the opposing member which are provided with a spacing therebetween The opposing member has an impurity-doped portion which is provided to one of an opposing portion which is opposed to the movable element and an adjoining portion which adjoins the opposing portion. At least a part of the impurity-doped portion is formed on an opposite surface opposite to a surface which is opposed to the movable element, from which opposite surface an electrical wiring is led out. | 02-25-2010 |
| 20100107758 | STRUCTURAL MEMBER HAVING A PLURALITY OF CONDUCTIVE REGIONS - A structural member having a plurality of conductive regions electrically insulated from each other, in which the plurality of conductive regions are electrically insulated from each other by continuous oxidized regions, and the oxidized regions are each formed of an oxide made of a material having a plurality of through holes or trenches formed therein. | 05-06-2010 |
| 20100213791 | OSCILLATOR DEVICE - An oscillator device that includes a movable body oscillatably supported about a rotation axis, wherein the movable body is separated into plural electrically separated conductive regions in the thickness direction, and at least one of the plural electrically separated conductive regions in the thickness direction further has plural electrically separated conductive regions. | 08-26-2010 |
| 20110031568 | STRUCTURE HAVING PLURAL CONDUCTIVE REGIONS AND PROCESS FOR PRODUCTION THEREOF - A structure having a plurality of conductive regions insulated electrically from each other comprises a movable piece supported movably above the upper face of the conductive region, the movable piece having an electrode in opposition to the conductive region, the structure being constructed to be capable of emitting and receiving electric signals through the lower face of the conductive region, the plural conductive regions being insulated by sequentially connected oxidized regions formed from an oxide of a material having through-holes or grooves. | 02-10-2011 |
