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Kazufumi
Kazufumi Hamada, Kobe-Shi JP
| Patent application number | Description | Published |
|---|---|---|
| 20080257492 | Primer for cyanoacrylate adhesive - Some of α-cyanoacrylate adhesive does not achieve practical bond (adhesion) strength and any objective materials do not have adhesion with the same. The inventor provides a primer which is not harmful against human body and shows when applied sufficient adhesion strength even on those materials hard to have adhesion. | 10-23-2008 |
Kazufumi Hayashikawa, Nagoya-Shi JP
| Patent application number | Description | Published |
|---|---|---|
| 20090062991 | CONTROL SYSTEM OF VEHICLE - A brake-related ECU ( | 03-05-2009 |
| 20090062998 | DRIVING-FORCE DISTRIBUTION CONTROL DEVICE - A driving-force distribution control device includes a distributing mechanism, a distribution controller, an anti-skid brake system, an acceleration detector, a synthesized acceleration calculator and a control coefficient controller. The distributing mechanism is operable to variably distribute a driving force from an engine to individual drive wheels of a vehicle. The distribution controller is operable to control the distributing mechanism based on a running state of the vehicle. The acceleration detector is operable to detect a first acceleration in a front-rear direction and a second acceleration in a left-right direction of the vehicle. The synthesized acceleration calculator is operable to calculate a synthesized acceleration of the first acceleration and the second acceleration. The control coefficient controller is operable to indiscretely vary control coefficients for restricting the control of the distribution controller when the anti-skid brake system is activated, according to the calculated synthesized acceleration. | 03-05-2009 |
| 20120100958 | VEHICLE DRIVING FORCE CONTROL DEVICE - A vehicle driving force control device includes: a brake unit configured to generate a brake force of a vehicle; a stroke amount detecting unit configured to detect a stroke amount of a brake pedal of the vehicle; a monitoring unit configured to monitor whether generation of the brake force of the brake unit is abnormal; and a creep torque controlling unit configured to increase a reduction amount of a creep torque of the vehicle as the stroke amount increases, when the monitoring unit determines that the generation of the brake force in the brake unit is abnormal. | 04-26-2012 |
Kazufumi Honda, Chiba-Ken JP
| Patent application number | Description | Published |
|---|---|---|
| 20090004671 | Marker Protein For Use In Diagnosis Of Pancreatic Cancer - Disclosed herein are a pancreatic carcinoma marker protein that is a blood protein having a molecular weight of 28,080±15, 17,272±9, 17,253±9, 8,766±5, or 14,779±8 (m/z) and a method for detecting pancreatic carcinoma using the marker protein as an indicator. | 01-01-2009 |
Kazufumi Ishida, Shizuoka JP
| Patent application number | Description | Published |
|---|---|---|
| 20090074488 | IMAGE FORMING APPARATUS AND SECONDARY TRANSFER ROLLER CLEANING METHOD OF THE IMAGE FORMING APPARATUS - A secondary transfer roller rotates in a first rotation direction during printing, and rotates in a second rotation direction opposite to the first rotation direction during a stop of the printing only within a specified range. When an image forming apparatus includes a lubricant supply unit, the secondary transfer roller rotates in the second rotation direction within the range where an amount of movement of a contact surface between the secondary transfer roller and the cleaning member is 3 mm or more and not larger than a distance on the contact surface from a contact part between the secondary transfer roller and the lubricant supply unit to a contact part between the secondary transfer roller and the cleaning member in the second rotation direction. | 03-19-2009 |
| 20110280604 | IMAGE FORMING APPARATUS AND IMAGE FORMING METHOD - According to one embodiment, an image forming apparatus includes: a charging device configured to apply a voltage to a photoconductive drum to set the photoconductive drum to surface potential V | 11-17-2011 |
Kazufumi Ishida, Sunto-Gun JP
| Patent application number | Description | Published |
|---|---|---|
| 20080247772 | XEROGRAPHIC COPYING APPARATUS AND METHOD OF CONTROLLING MOTOR - In a xerographic copying apparatus of the invention, a control unit to control a stepping motor to cause rotation of an image supporting body to synchronize with running of a transfer medium performs acceleration and deceleration of a rotation speed of the image supporting body while the image supporting body is rotating in a reverse rotation direction, and accordingly, paper powder or foreign matter accumulated in a cleaning mechanism to clean a developer on the image supporting body can be collected, the occurrence of abnormal noise is prevented, and a definite amount of reverse rotation of the image supporting body can be realized while avoiding damage of the image supporting body due to a speed difference between the image supporting body and the transfer medium. | 10-09-2008 |
Kazufumi Ishida, Shizuoka-Ken JP
| Patent application number | Description | Published |
|---|---|---|
| 20090052920 | IMAGE FORMING APPARATUS AND IMAGE QUALITY MAINTAINING METHOD - A technique is provided that enables maintaining an appropriate level of image quality even under conditions that the quantity of residual toner increases in an image forming apparatus in which a lubricant is supplied to a cleaning target part from which a residual toner is removed by a cleaning member. In timing when a toner image carried on an image carrier reaches a predetermined transfer position, reaching failure information indicating that a sheet to which the toner image should be transferred does not reach the predetermined transfer position is acquired. In the case where the reaching failure information is acquired, an electric field that is opposite to an electric field generated when transferring the toner image on the image carrier to the sheet is generated between the image carrier and the transfer member. | 02-26-2009 |
Kazufumi Kai, Minato-Ku JP
| Patent application number | Description | Published |
|---|---|---|
| 20100286354 | ALLYL ALCOHOL COPOLYMER AND PRODUCTION METHOD THEREOF - The invention relates to an allyl alcohol copolymer comprising structures represented by formula (1) and (2) as monomer units. | 11-11-2010 |
| 20110124815 | POLYURETHANE AND PRODUCTION METHOD THEREOF - The invention relates to polyurethane having s excellent electric insulating property and thermal stability, obtained by a polyaddition reaction between a polyol copolymer which is a copolymer comprising as monomer units the structures represented by formulae (1) and (2) and a polyisocyanate compound: | 05-26-2011 |
Kazufumi Kai, Oita JP
| Patent application number | Description | Published |
|---|---|---|
| 20090166589 | TRANSPARENT CONDUCTIVE SUBSTRATE - The invention provides a transparent conductive substrate using allyl ester heat-curable resin, comprising a compound having a group represented by formula (2) as terminus and a group represented by formula (3) as repeating unit, | 07-02-2009 |
| 20090192279 | Radically Polymerizable Sulfur-Containing Compound and Radically Polymerizable Sulfur-Containing Polymer - The invention relates to a radically polymerizable sulfur-containing compound having a group represented by formula (1) and at least one selected from among groups represented by formulae (2) to (4), a radically polymerizable sulfur-containing polymer obtained by subjecting the compound to cationic ring-opening (co)polymerization, production process thereof, a composition containing the sulfur-containing compound and/or the sulfur-containing polymer, and a cured product obtained from the composition. | 07-30-2009 |
| 20090270574 | RADICALLY POLYMERIZABLE COMPOUND HAVING A CYCLIC DITHIOCARBONATE GROUP - A radically polymerizable compound having a group represented by formula (1) | 10-29-2009 |
| 20090324922 | TRANSPARENT COMPOSITE MATERIAL - The invention provides a transparent composite material comprising a cured product of a three-dimensionally crosslinkable resin composition containing tabular inorganic substance having a number-average particle size of 10 to 300 nm and an aspect ratio of 10 to 300 dispersed therein, which material has a small coefficient of thermal expansion against surrounding temperature changes and can be suitably applicable as substrate for display devices, to thereby overcome disadvantages in substrate for display devices using conventional materials that differences in thermal shrinkage between a substrate and an transparent electrode cause cracks in the transparent electrode, resulting in increasing resistance and causing disconnection, and further can provide a display device with high durability. | 12-31-2009 |
Kazufumi Kato, Tokyo JP
| Patent application number | Description | Published |
|---|---|---|
| 20120111627 | ELECTROMAGNETIC SHIELDING SHEET TECHNICAL FIELD - Disclosed is an electromagnetic shielding sheet that has a smaller increase in the thickness of a base after the formation of a metal coating film when compared with conventional electromagnetic shielding sheets, and which has excellent electromagnetic wave shielding properties despite a small amount of adhered metal. According to the present invention, the electromagnetic shielding sheet can endure metal working processes and has high electromagnetic wave shielding properties, resulting in a thin, very flexible fabric sheet. Specifically disclosed is an electromagnetic shielding sheet which is composed of a laminated non-woven fabric that has at least a first layer and a second layer, and which is characterized in that the first layer is a layer of thermoplastic synthetic fibers having a fiber diameter of 6 μm to 50 μm, the second layer is a layer of ultrafine fibers having a fiber diameter of 0.1 μm to 5.0 μm, and a metal is adhered to at least one surface of the sheet. | 05-10-2012 |
Kazufumi Kimura, Nagoya-Shi JP
| Patent application number | Description | Published |
|---|---|---|
| 20090244284 | TIRE TYPE DETERMINATION METHOD AND VEHICLE INSPECTION METHOD AND SYSTEM USING THE SAME - In a tire type determination method, a surface image of a tread portion of a tire mounted on a vehicle is captured by a camera fixed at a predetermined position in a tilted hanger conveyor line, which is located downstream in a vehicle-carrying direction with respect to a position at which the tire of the vehicle is lifted from the ground and starts moving diagonally upward. Further, image information is extracted from the surface image of the tread portion, and a tire type is determined by checking the image information against registered information. A vehicle inspection system includes a tire type determination portion and a vehicle type information obtaining portion so as to determine the tire type using the method. A conformance determination portion determines whether the tire type determined by the tire type determination portion conforms to a specified tire type searched based on the vehicle type information. | 10-01-2009 |
Kazufumi Muronoi, Wako-Shi JP
| Patent application number | Description | Published |
|---|---|---|
| 20100019507 | INVERTER GENERATOR - In an inverter generator having a generator unit driven by an internal combustion engine, an inverter that inverts converted direct current to alternating current with switching elements to supply to an electrical load, an inverter driver that comprises an microcomputer and drives the switching elements with a PWM signal to make the alternating current of a predetermined frequency, an ignition unit that ignites the engine, and an ignition controller that controls operation of the ignition unit, the engine speed is detected and it is determined whether the engine is under over revolution condition based on the detected engine speed. The inverter driver sends a command to the ignition controller to terminate the ignition to stop the engine, when the engine is under the over revolution condition, thereby enabling to prevent the engine from experiencing over revolution repeatedly. | 01-28-2010 |
| 20100019508 | INVERTER GENERATOR - In an inverter generator, having a generator unit driven by an internal combustion engine whose throttle valve is moved by an actuator and generates alternating current, and an inverter that converts converted direct current to alternating current with switching elements to supply to an electrical load, voltage and current supplied to the electrical load is detected, a power factor is calculated from the detected voltage and the current, a power of the load is estimated from the detected current and the calculated power factor. Then a desired speed of the engine is determined based on the estimated power of the load, and the actuator is controlled such that an engine speed becomes equal to the desired engine speed, thereby improving the response of engine speed control. | 01-28-2010 |
| 20100020571 | INVERTER GENERATOR - In an inverter generator having an engine generator unit, a converter that converts generated alternating current to direct current, an inverter that converts the direct current to alternating current with switching elements to supply to an electrical load, an inverter driver that drives the switching elements with a PWM signal and makes the alternating current of a predetermined frequency, the alternating current supplied to the electrical and voltages of the direct and alternating currents are detected, the detected voltage of the alternating current is corrected as a predetermined value based on a coefficient (DCgainA) set based on the detected voltage of the direct current, when the detected alternating current is greater than a threshold value, and the PWM signal is corrected by the predetermined, thereby limiting overcurrent. | 01-28-2010 |
| 20100020572 | INVERTER GENERATOR - In an inverter generator having an engine generator having a generator unit, a converter that converts generated alternating current to direct current, an inverter that converts the direct current to alternating current with switching elements to supply to an electrical load, an inverter driver that drives the switching elements with a PWM signal using a reference sine wave of a desired output voltage waveform and a carrier at every control cycle (step) determined by a carrier frequency and makes the alternating current of a predetermined frequency, the inverter driver varies the carrier frequency in accordance with inclination of the reference sine wave, more specifically decreases the carrier frequency as decreasing inclination of the reference sine wave. | 01-28-2010 |
Kazufumi Muronoi, Saitama JP
| Patent application number | Description | Published |
|---|---|---|
| 20100019740 | INVERTER GENERATOR - In an inverter generator having an engine generator unit generating alternating current, a converter converting the alternating current to direct current, an inverter that converts the direct current to alternating current, an inverter driver that drives switching elements with a PWM signal generated using a reference sine wave of a desired output voltage waveform and a carrier and makes the alternating current to the alternating current of a predetermined frequency, the alternating current supplied to an electrical load is detected, gains Gn (n: 2, 3, 4, 5, 6, . . . m) of n-th harmonics of the reference sine wave and amplitudes An are calculated from the detected current, and the reference sine wave is corrected by a sum obtained by the calculated gains and amplitudes. With this, the reference sine wave is accurately corrected to reliably remove harmonic distortion components from the output voltage waveform. | 01-28-2010 |
Kazufumi Muto, Abiko-Shi JP
| Patent application number | Description | Published |
|---|---|---|
| 20090028601 | IMAGE FORMING APPARATUS - An image forming apparatus forms an image on a recording material, and detachably mounts which process cartridges having photosensitive drums. The apparatus includes a main assembly, a rotatable openable member, a belt receiving an image or carrying the recording material, supporting members supporting the process cartridges at different levels and movable between drum-contacting and retracted positions, and a connecting member moving the supporting member when the openable member moves to position the supporting member at the drum-contacting position when the openable member is closed, and position the supporting member at the retracted position when the openable member is opened, and including a shaft whose axis crosses the openable member rotational axis, first connecting portions rotatably connected with respective supporting members, and a second connecting portion engaging the openable member and fixed to the shaft closer to the openable member than the first connecting portions are fixed to the shaft. | 01-29-2009 |
| 20090116869 | IMAGE FORMING APPARATUS - An image forming apparatus detachably mounts a cartridge and forms an image on a recording material. The apparatus includes a cartridge positioning portion, a movable member movable between a first position for positioning the cartridge to the positioning portion when the cartridge is mounted to a main assembly of the apparatus, and a retracted position, for permitting cartridge main-assembly mounting in a cartridge longitudinal direction. The movable member has an urging member urging the cartridge to the positioning portion when the movable member takes the first position. Also provided is a guiding member movable relative to the movable member to take a guide position guiding the cartridge when the movable member takes the retracted position and a position retracted from the guide position away from the cartridge when the movable member takes the first position. | 05-07-2009 |
| 20090290905 | IMAGE FORMING APPARATUS AND PROCESS CARTRIDGE - An image forming apparatus forms an image on a recording material, detachably mounts a process cartridge including a photosensitive drum, and includes first and second positioning portions respectively positioning the drum upstream and downstream with respect to a cartridge mounting direction, a coupling engaging a drum coupling and transmitting a driving force to the drum, and a support supporting the cartridge at a first position for positioning the drum to the first and second positioning portions and at a second position spacing the drum away from the first and second positioning portions to permit cartridge mounting and dismounting. The support includes a guide engaging the cartridge, and a third positioning portion limiting cartridge rotation relative to the first and second positioning portions when the coupling transmits a driving force to the drum coupling and for positioning the cartridge lower portion at an upstream position with respect to the mounting direction. | 11-26-2009 |
| 20100092223 | IMAGE FORMING APPARATUS - An image forming apparatus includes a photosensitive member; a developing device for developing an electrostatic image formed on said photosensitive member into a toner image; a transfer charger for transferring a toner image from said photosensitive member onto an image receiving member; a non-rotational brush and a rotatable brush for electrically charging toner, which remains on said photosensitive member after image transfer by said transfer charger, to collect the remaining toner into said developing device; a driving mechanism provided with a driving source for rotating said rotatable brush; and a moving mechanism for reciprocating said non-rotational brush by a driving force through said rotatable brush in a direction along an axis of said photosensitive member. | 04-15-2010 |
| 20100129101 | PROCESS CARTRIDGE AND IMAGE FORMING APPARATUS - A process cartridge is detachably mountable to a main assembly of an image forming apparatus and includes an image bearing member, a developing device having a developer carrier, a transmitter transmitting a driving force received from the main assembly to the developer carrier, a charger movable toward and away from the image bearing member, for charging the image bearing member while contacting the image bearing member, a spacer, detachably mountable relative to the cartridge, for holding the charger at a position away from the image bearing member when the spacer is mounted and for permitting the charger to charge the image bearing member when the spacer is dismounted, and a drive controller for disengaging the driving connection between the transmitter and the developer carrier when the spacer is mounted, and for establishing the driving connection between the transmitter and the developer carrying member when the spacer is dismounted. | 05-27-2010 |
| 20110286768 | DEVELOPING APPARATUS, AND IMAGE FORMING APPARATUS - A developing apparatus includes a first chamber for accommodating a developer, the first chamber being provided with a developer carrying member for carrying the developer; a second chamber communicated with the first chamber through communication openings provided at opposite end portions to establish a circulation path; a feeding member, provided in the second chamber, for feeding the developer in a feeding direction which is from one of the communication openings toward the other communication opening; a sealing portion for openably sealing the communication openings; a moving mechanism for opening the communication openings by moving the sealing portion; and a reverse feeding member for feeding the developer in a direction which is opposite the feeding direction. | 11-24-2011 |
Kazufumi Nagazoe, Sakai-Shi JP
| Patent application number | Description | Published |
|---|---|---|
| 20120091901 | ILLUMINATION DEVICE - An illumination device, includes: a photovoltaic power generation unit; a battery unit for storing the electric power generated in the photovoltaic power generation unit; a light source to be turned on using the battery unit as a power source; a human detecting sensor; a human determining unit for determining presence/absence of the human based on a detection result of the human detecting sensor; a season determining unit; and a lighting control unit for, if the human determining unit determines that the human exists, turning on the light source at a specified dimming rate for a specified on-duration. The lighting control unit is configured to, based on a season determination result of the season determining unit, make power consumption of the light source in a season having a reduced daytime period smaller than power consumption of the light source in a season having an increased daytime period. | 04-19-2012 |
Kazufumi Naito, Shiga JP
| Patent application number | Description | Published |
|---|---|---|
| 20090255736 | Load cell unit, weight checker, electronic balance, and balance - A load cell unit which can satisfactorily measure the weight of a measured object if ambient temperature changes, and a weight checker and an electric balance using the load cell unit, are provided. A strain generating element includes plural strain generating portions. Each of strain gauges is a gauge of a temperature/sensitivity compensated type and is placed in a position on a corresponding strain generating portion. A bridge circuit includes the strain gauges. A zero compensation element compensates the zero of the bridge circuit in accordance with the temperature of the strain generating element, to roughly correct an output of the bridge circuit. A thermal sensitive resistor is a temperature sensor for detecting the temperature of the strain generating element. The zero compensation element and the thermal sensitive resistor are provided on a thick portion interposed between adjacent strain generating portions. A signal processor minutely corrects a roughly-corrected output of the bridge circuit. Thus, software compensation of zero can be further provided to an output of the bridge circuit, to which circuital compensation of zero is provided. | 10-15-2009 |
Kazufumi Nishida, Musashino-Shi JP
| Patent application number | Description | Published |
|---|---|---|
| 20080266550 | APPARATUS AND METHOD FOR MEASURING FILM THICKNESS - A film thickness measuring apparatus of the present invention includes: a light source that emits white light to be irradiated onto a multilayer thin film; a spectroscope that disperses reflected light obtained as a result of irradiating the white light onto the multilayer thin film in order to obtain reflectance spectrums; and a computation section, said computation section including: a setting section that sets a plurality of wavelength ranges for the reflectance spectrums; a first conversion section that obtains wavenumber range reflectance spectrums by re-sequencing, among the reflectance spectrums, reflectance spectrums in the plurality of wavelength ranges set in said setting section at equal intervals, respectively; a second conversion section that converts the wavenumber range reflectance spectrums in the plurality of wavelength ranges obtained in said first conversion section into power spectrums, respectively; and a calculation section that obtains a film thickness of the multilayer thin film based on the power spectrums. | 10-30-2008 |
| 20110040510 | FILM THICKNESS MEASUREMENT APPARATUS - A film thickness measurement apparatus may include a spectrum acquisition unit that irradiates a light onto a film and acquires a spectrum of a reflection light or a transmission light, a power spectrum calculating unit that calculates a power spectrum, a film thickness calculating unit that detects a peak position of the power spectrum and calculates a thickness of the film, a measurement quality calculating unit that calculates a measurement quality of the thickness, a measurement quality determining unit that determines whether the thickness is valid or invalid, and a film thickness output unit that outputs the thickness if the measurement quality determining unit determines that the thickness is valid. | 02-17-2011 |
Kazufumi Nishikawa, Neyagawa City JP
| Patent application number | Description | Published |
|---|---|---|
| 20090183519 | Cooling System, Control Device, and Control Program - A cooling system is provided in which an integrated controller | 07-23-2009 |
Kazufumi Ogawa, Tokushima JP
| Patent application number | Description | Published |
|---|---|---|
| 20100186992 | CONDUCTIVE PASTE AND METHOD FOR MANUFACTURING THE SAME, WIRING USING THE CONDUCTIVE PASTE AND METHOD FOR MANUFACTURING THE SAME - The present invention relates to a conductive paste in which fine metal particles are dispersed into a chemical adsorption liquid produced from a mixture of at least an alkoxysilane compound, a silanol condensation catalyst, and a nonaqueous organic solvent to form an organic thin film comprising molecules covalently bound to the surface of the fine metal particle by having the surface of the fine metal particle react with the alkoxysilane compound, so that fine metal particles that are given a reactive function to the surface are produced while almost maintaining the original conductivity of the fine metal particles, and further the particles are pasted with an organic solvent. | 07-29-2010 |
| 20100252096 | SOLAR CELL AND METHOD FOR MANUFACTURING THE SAME - A solar cell in which an n-type fine silicon particle film is formed in a lamination layer on the surface of a transparent substrate via a transparent electrode, and the n-type fine silicon particle film is covalently bound to the transparent electrode via the first organic coating formed on the surface of the transparent electrode and the second organic coating formed on the surface of the n-type fine silicon particle film and the n-type fine silicon particle film is covalently bound to the p-type fine silicon particle film via the second organic coating formed on the surface of the n-type fine silicon particle film and the third organic coating formed on the surface of the p-type fine silicon particle film. | 10-07-2010 |
Kazufumi Oyama, Saitama JP
| Patent application number | Description | Published |
|---|---|---|
| 20110010767 | Server System, Communication Method, Computer, Program And Recording Medium - Establishment of communication between client apparatuses and an arithmetic function unit is performed based on communication information acquired by communication using HTTP between the client apparatuses and the arithmetic function unit through a firewall function unit, where the client apparatuses download encrypted contents data from the arithmetic function unit by P2P without passing a firewall. | 01-13-2011 |
Kazufumi Sakai, Saga JP
| Patent application number | Description | Published |
|---|---|---|
| 20110069313 | METHOD FOR INSPECTING DEFECTS AND DEFECT INSPECTING APPARATUS - Light from a light source device ( | 03-24-2011 |
Kazufumi Suzuki, Tokyo JP
| Patent application number | Description | Published |
|---|---|---|
| 20090015788 | Sight Line Detecting Method - In a sight line vector detecting system comprising: an infrared light source for illuminating either an eye or a face; a camera for photographing either the eye or the face; and a computer for processing photographed image data of said camera so as to calculate a sight line vector, the computer includes an image processing unit for detecting the true luminance point and the center of the pupil from the photographed image data; and a calculating unit for calculating the sight line vector; and the image processing unit performs such a processing operation that the image processing unit determines a luminance point capable of satisfying a predetermined requirement as the true luminance point among luminance points having the pupils at near places, calculates a center of the pupils, and further, calculates a center of a cornea ball. | 01-15-2009 |
Kazufumi Takahashi, Tokyo JP
| Patent application number | Description | Published |
|---|---|---|
| 20100061735 | OPTICAL COMMUNICATION DEVICE, OPTICAL TRANSCEIVER USING THE SAME AND MANUFACTURING METHOD OF OPTICAL COMMUNICATION DEVICE - An optical communication device, including a module board which includes at least the optical module inputting or outputting an optical signal, and the peripheral circuit connecting electrically with the optical module; a connector board which includes an electric connector inputting or outputting an electric signal: and a flexible board which adjusts a relative position of the module board and the connector board, and transmits the electric signal among these boards. | 03-11-2010 |
Kazufumi Takano, Suita-Shi JP
| Patent application number | Description | Published |
|---|---|---|
| 20110143421 | NOVEL PROTEASE AND USE THEREOF - A novel protease comprising any one of | 06-16-2011 |
Kazufumi Tanaka, Tokyo JP
| Patent application number | Description | Published |
|---|---|---|
| 20090124042 | ZnO BASED SEMICONDUCTOR DEVICE MANUFACTURE METHOD - A manufacture method for a ZnO based semiconductor device includes the steps of: (a) preparing a ZnO based semiconductor wafer including a ZnO based semiconductor substrate having a wurzeit structure with a +C plane on one surface and a −C plane on an opposite surface, a first ZnO based semiconductor layer having a first conductivity type epitaxially grown above the +C plane of the ZnO based semiconductor substrate, and a second ZnO based semiconductor layer having a second conductivity type opposite to the first conductivity type epitaxially grown above the first semiconductor layer; and (b) wet-etching the ZnO based semiconductor wafer with acid etching liquid to etch the −C plane of the ZnO based semiconductor substrate | 05-14-2009 |
Kazufumi Yamashita, Kiryu-Shi JP
| Patent application number | Description | Published |
|---|---|---|
| 20090134821 | MOTOR DRIVING CIRCUIT - A motor driving circuit for full-wave single-phase driving a motor includes a position detection unit, a turn-on signal generation unit, and switching devices that define an H-bridge circuit. The turn-on signal generation unit includes a differential amplifier arranged to produce a trapezoid wave signal, and a square wave generation circuit arranged to produce a square wave signal, wherein the trapezoid and the square wave signals are respectively supplied to control terminals of lower switching devices in the H-bridge circuit. Further, one of the lower switching devices is turned on and off according to a voltage level of the square wave signal, and the remaining lower switching device is turned on and off when a voltage of the trapezoid wave signal becomes higher than an operation voltage of the remaining lower switching device, wherein a non-conducting interval is provided for the motor coil according to the operation voltage. | 05-28-2009 |