Masahiro Maeda
Masahiro Maeda, Takasaki-Shi JP
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20110008339 | MONOCLONAL ANTIBODY AND USE THEREOF - An antibody capable of recognizing amyloid β while not recognizing amyloid β precursor proteins, and a method for using the same. | 01-13-2011 |
Masahiro Maeda, Osaka JP
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20100273535 | RADIO-FREQUENCY POWER AMPLIFIER DEVICE AND WIRELESS COMMUNICATION DEVICE INCLUDING THE SAME - A radio-frequency power amplifier device includes an input terminal for which a first radio-frequency signal for a CDMA mode within a first frequency band and a third radio-frequency signal for a TDMA mode within the first frequency band are selectively provided, a second input terminal for which a second radio-frequency signal for a CDMA mode within a second frequency band and a fourth radio-frequency signal for a TDMA mode within the second frequency band are selectively provided, a first power amplifier unit which to amplifies the provided first radio-frequency signal, a second power amplifier unit which amplifies the provided second radio-frequency signal, a third power amplifier unit which amplifies the provided third radio-frequency signal, and a fourth power amplifier unit which amplifies the provided fourth radio-frequency signal. These power amplifier units are arranged in order of the first power amplifier unit to the fourth power amplifier unit. | 10-28-2010 |
20110001566 | RADIO FREQUENCY POWER AMPLIFIER - A radio frequency power amplifier includes: an input terminal to which a radio frequency signal is applied; a first HBT which amplifies the radio frequency signal; a second HBT which amplifies the radio frequency signal; a matching circuit connected to an output node of the second HBT; a switch connected to an output node of the matching circuit; and an output matching circuit connected to an output node of the first HBT. The output node of the switch is connected to the output node of the first HBT via the output matching circuit, and an impedance looking into an output side of the radio frequency power amplifier from the output node of the switch is higher than an impedance looking into the output side of the radio frequency power amplifier from the output node of the first HBT. | 01-06-2011 |
20110304386 | CONSTANT-VOLTAGE CIRCUIT - A constant-voltage circuit includes: first and second field-effect transistors; a first node connected to the drains of the first and second field-effect transistors; a second node connected to the gates of the first and second field-effect transistors; a bipolar transistor whose collector is connected to the second node; a resistor connected to the source of the second field-effect transistor and the collector of the bipolar transistor; and a bias circuit that is connected to the source of the second field-effect transistor and supplies a bias voltage to the base of the bipolar transistor, wherein a power supply is connected to the first node and a constant voltage is outputted from the source of the first field-effect transistor. | 12-15-2011 |
20120001695 | RADIO FREQUENCY POWER AMPLIFIER - The radio frequency power amplifier is connected between an other end of the first switching element and an other end of the second switching element, supplies power to a second amplifier via the first switching element and a second matching circuit, and includes a first power supply line for supplying power to the third amplifier via a second switching element and a third matching circuit, and the other end of the first switching element is connected to an input node of the first matching circuit, the other end of the second switching element is connected to the input node of the first matching circuit via the first power supply line, and an impedance of an output side of the RF power amplifier as viewed from an output node of the third amplifier is higher than an impedance of the RF power amplifier as viewed from an output node of the second amplifier. | 01-05-2012 |
20130285749 | HIGH-FREQUENCY POWER AMPLIFIER - A high-frequency power amplifier that amplifies a high-frequency input signal and outputs a signal having one power selected from a plurality of powers includes a high output route that is a circuit, which amplifies the input signal and outputs a signal of a high power, and a medium output route that is a circuit, which amplifies the input signal and outputs a signal of a medium power. The high output route includes a high-output amplifier that amplifies the input signal, an output matching circuit that is connected to an output node of the high-output amplifier, and a switch element that is connected to an output node of the output matching circuit. The medium output route includes a medium-output amplifier that amplifies the input signal and a switch element that is connected between an output node of the medium-output amplifier and an output node of the output matching circuit. | 10-31-2013 |
Masahiro Maeda, Gunma JP
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20090014231 | ELECTRIC POWER STEERING APPARATUS - An electric power steering apparatus including a steering system into which steering torque is inputted, an electric motor for imparting steering assist force to the steering system, a controller for controlling a energizing state of the electric motor according to the steering torque, a terminal board electrically connected to the electric motor, and a control unit provided with a connector, wherein a mounting face of the electric motor with respect to the control unit, a mounting face of the terminal board with respect to the control unit, and a mounting face of the connector with respect to the control unit are arranged on a same plane. | 01-15-2009 |
20090167224 | Motor Control Device and Motor-Driven Power Steering System Using the Same - An object of the present invention is to provide a motor control device capable of suppressing voltage composite vector fluctuation to increase the output of a brushless motor, and a motor-driven power steering system using this device. The present control device calculates motor phase current command values based on a target current and a rotor rotational position detection value, calculates voltage command values based on the motor phase current command values and phase current detection values, and supplies phase currents to a three-phase brushless motor based on the voltage command values. The present control device outputs the phase current command values so that the absolute value of a composite vector of respective phase drive voltages is substantially a value √3/2 times the power supply voltage. | 07-02-2009 |
20100323375 | AGENT AND METHOD FOR DIAGNOSIS ON THE OCCURRENCE OF ALZHEIMER'S DISEASE OR THE TENDENCY TO DEVELOP ALZHEIMER'S DISEASE - Disclosed are: an agent, an apparatus and a method for the diagnosis of a disease associated with the abnormality in γ-secretase; a method for providing information for the diagnosis of a disease associated with the abnormality in γ-secretase; a method for monitoring the condition or the degree of progression of a disease associated with the abnormality in γ-secretase; and a method for determining the therapeutic effect of a therapeutic agent on a disease associated with the abnormality in γ-secretase. More specifically disclosed are: a diagnostic agent for a disease associated with the abnormality in γ-secretase, which comprises an antibody capable of recognizing a digestion product of an alcadein with α-secretase or γ-secretase or a fragment of the antibody; and others. | 12-23-2010 |
20130271047 | MOTOR CONTROLLING APPARATUS AND ELECTRIC POWER STEERING APPARATUS USING THE SAME | 10-17-2013 |
Masahiro Maeda, Kanagawa JP
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20100074529 | Image recognition apparatus - An image recognition apparatus includes an objective image data acquisition unit to acquire objective image data containing a face image portion, a feature area detection unit to detect an eye area corresponding to left and right eyes contained in the objective image data, an inclination estimation unit to estimate inclination of the face image portion in a depth direction thereof based on the relative position of the detected eye area, an area-to-be-extracted determination unit to determine a shape of an area to be extracted in response to the inclination estimated by the inclination estimation unit, and an area-to-be-extracted extraction unit to extract the area to be extracted of the shape determined from the objective image data. Preferably, the area to be extracted is subjected to predetermined processing. | 03-25-2010 |
Masahiro Maeda, Maebashi-Shi JP
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20090267430 | ELECTRIC POWER STEERING APPARATUS - An electric power steering apparatus according to the invention includes an electric motor to be connected to a control unit through bus bars respectively projected from the inside of the electric motor and is structured such that the control unit controls the drive of the electric motor to thereby assist the steering of a vehicle. The control unit is fixed to a fixing base which is structured as a composing element of the electric motor, and the fixing base covers the connecting portion between the bus bars and control unit. | 10-29-2009 |
20100017063 | ELECTRIC POWER STEERING APPARATUS - An electric power steering apparatus in which the intensity and directions of drive currents flowing in remaining phases continues motor rotation driving. An abnormality detect unit ( | 01-21-2010 |
20110276229 | ELECTRIC POWER STEERING APPARATUS | 11-10-2011 |
Masahiro Maeda, Nagano-Ken JP
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20090175639 | Image forming apparatus and image forming method - An image forming apparatus and an image forming method, which are capable of forming images at stable image quality by executing adjustment of operating conditions at appropriate timings, are provided. When a Vsync count corresponding to an integrated value of a rotation count of an intermediate transfer belt reaches a predetermined value V | 07-09-2009 |
Masahiro Maeda, Shiojiri-Shi JP
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20090148197 | Developer Apparatus, An Image Forming Apparatus and An Image Forming Method - A developer apparatus, includes: a toner carrier roller that is shaped approximately like a cylinder, rotates while carrying a toner layer of charged toner on a surface thereof, and is provided, on the surface thereof, with plural convex section rows, each of which has plural convex sections arranged in a row in a width direction parallel to a rotational axis of the toner carrier roller and which are arranged in a circumferential direction orthogonal to the width direction and parallel to a circumferential surface of the toner carrier roller, the convex sections being so constructed and arranged that top surfaces of the convex sections coincide with a part of a curved surface of a single cylinder; and a restriction member that abuts on the surface of the toner carrier roller to restrict the toner layer carried on the surface of the toner carrier roller, includes an elastic abutting member which is made of an elastic material and has an edge part which extends in the width direction, the edge part being pressed into contact with the surface of the toner carrier roller, wherein a virtual surface which is obtained by extending the top surface of each convex section in the width direction and forms a part of the curved surface of the single cylinder is defined as a convex section extending surface of each convex section, and the convex section extending surfaces overlap each other between the convex sections belonging to the same convex section row, whereas the convex section extending surfaces do not overlap each other between the convex sections belonging to mutually different convex section rows. | 06-11-2009 |
Masahiro Maeda, Yamatokooriyama-Shi JP
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20090095589 | LOCKUP DEVICE, AND FLUID-TYPE TORQUE TRANSMISSION DEVICE EQUIPPED WITH SAME - A lockup device | 04-16-2009 |
Masahiro Maeda, Tokyo JP
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20130158808 | MOTOR CONTROL APPARATUS AND ELECTRIC POWER STEERING APPARATUS - A motor control apparatus that drive-controls a motor by an inverter based on each-phase duty command values of PWM and detects each-phase motor currents of the motor by a one-shunt type current detector. The apparatus includes a current detection correcting section that calculates a current detection correction value based on a power-supply voltage of the motor, each-phase duty command values, a back-EMF information of the motor, each-phase motor currents detected by the current detector, arrangement information of the PWM, and electric characteristic formula of the motor, thereby to correct the each-phase motor currents detected by the current detector to a motor average current by the current detection correction value and drive-controls the motor. | 06-20-2013 |
Masahiro Maeda, Zama JP
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20140047157 | PARALLEL COMPUTER SYSTEM, CROSSBAR SWITCH, AND METHOD OF CONTROLLING PARALLEL COMPUTER SYSTEM - A parallel computer system includes a plurality of processors including a first processor and a plurality of second processors; and a crossbar switch provided with a plurality of ports; wherein the first processor transmits data to a first port among the plurality of ports, and transmits standby time information to the first port in the case where the plurality of second processors are unable to transmit data to the first port despite receiving a communication authorization notification from the first port, and the first port receives the standby time information, and after the standby time elapses, selects one of the plurality of second processors. | 02-13-2014 |
20140052885 | PARALLEL COMPUTER SYSTEM, DATA TRANSFER DEVICE, AND METHOD FOR CONTROLLING PARALLEL COMPUTER SYSTEM - A switch includes a plurality of ports and a combination determining unit that determines a central processing unit (CPU) to be paired with one of the ports. The port includes: an arbitration circuit that selects the CPU to be paired therewith when receiving an arbitration request from the CPU to be paired in a predetermined state, and selects one of the CPUs from which the arbitration request has been received in other cases to return transmission permission; and a data transfer unit that transfers the received data from the selected CPU to another CPU. The CPU includes: a request transmission unit that transmits the arbitration request to the ports; and a data transmission unit that transmits data to the paired port when the arbitration request is transmitted to the paired port in the predetermined state, and transmits data to the ports that have returned transmission permission in other cases. | 02-20-2014 |
Masahiro Maeda, Shinagawa-Ku JP
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20140156144 | MOTOR CONTROL APPARATUS AND ELECTRIC POWER STEERING APPARATUS PROVIDED WITH THE SAME - A motor control apparatus that is capable of making the whole control system robust not only with respect to motor parameter variations such as the temperature variation and the manufacturing unevenness but also with respect to disturbances while using a cheap and compact one-shunt type current detecting circuit and simultaneously diagnosing an estimation error and an electric power steering apparatus provide with the motor control apparatus. | 06-05-2014 |
20150088381 | ELECTRIC POWER STEERING APPARATUS - An electric power steering apparatus that is capable of efficiently suppressing vibrations and simultaneously minimizing steering performance degradation such as an increase in a steering wheel's viscous feeling by extracting a vibration component having an arbitrary amplitude and an arbitrary frequency range depending on an electric power steering state parameter and feeding back a vibration suppression compensation value determined depending on the extracted vibration component to a current command value. The apparatus includes a current command value determining section that determines a current command value based on a steering torque and a velocity; a vibration extraction filter that extracts a vibration component having a predetermined amplitude and a predetermined frequency range depending on an electric power steering state parameter; and a compensation value determining section that determines a vibration suppression compensation value based on the vibration component extracted by the vibration extraction filter. | 03-26-2015 |
Masahiro Maeda, Niwa-Gun JP
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20140320057 | POSITION CONTROLLER - A position controller sets a variable friction compensation value which varies in accordance with a change in sliding characteristics by providing a variable friction compensation value calculation unit that includes a sliding torque normalization calculation unit that normalizes a sliding torque at a predefined speed; a compensation value amplifying ratio calculation unit that calculates a compensation value amplifying ratio based on the sliding torque at the normalized speed; and multipliers. | 10-30-2014 |