Tomoyuki Murakami
Tomoyuki Murakami, Saitama JP
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20110001763 | Display control apparatus and display control method - There is provided a display control apparatus including a pickup image acquisition unit that acquires a pickup image of a viewer viewing a display image, a detection unit that detects a viewing position and a viewing distance of the viewer with respect to the display image based on the pickup image of the viewer acquired by the pickup image acquisition unit, and a display control unit that changes a size of the display image in accordance with the viewing distance of the viewer detected by the detection unit while associating the viewing position of the viewer detected by the detection unit with a display position of the display image. | 01-06-2011 |
20110292192 | STEREOSCOPIC DISPLAY DEVICE, DISPLAY CONTROL CIRCUIT, AND DISPLAY METHOD - A display method includes: time-divisionally displaying a plurality of stereoscopic vision images corresponding to a plurality of perspectives, through time-divisionally displaying a left-eye image and a right-eye image configuring each of the plurality of stereoscopic vision images corresponding to the respective perspectives; detecting an azimuth or respective azimuths in which one or more shutter eyeglasses are located, in which the shutter eyeglasses including a left-eye shutter and a right-eye shutter; and allowing the left-eye shutter and the right-eye shutter in one or more shutter eyeglasses located in the azimuth corresponding to the perspective of the stereoscopic vision image currently displayed to be open and closed, based on a detection result thereof, and in synchronization with a left-eye-image display timing and a left-eye-image display timing for each of the stereoscopic vision images corresponding to the respective perspectives. | 12-01-2011 |
Tomoyuki Murakami, Shibata-Gun JP
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20100103239 | OPTICAL SCANNER UNIT AND IMAGE FORMING APPARATUS - An optical scanner unit includes an LD unit, a polygon mirror deflecting a light beam, an optical scan system focusing the light beam from the polygon mirror on a photoconductive drum to form an electrostatic latent image, and a synchronous detector receiving a part of the light beam to detect a write start position on the photoconductive drum in main scan direction. The synchronous detector is fixed on a portion of a housing at predetermined angles in main and sub scan directions relative to an incidence angle of the light beam on the synchronous detector. | 04-29-2010 |
20100134854 | OPTICAL SCANNER AND IMAGE FORMING DEVICE USING THE OPTICAL SCANNER - An optical scanner includes an optical housing, which houses a light source, an aperture stop, a condensing lens and a rotary deflector, light from the light source entering into the rotary deflector via the aperture stop and the condensing lens, and the light deflected by the rotary deflector scanning a target to be irradiated, a fastener, which fastens the condensing lens to the optical housing, and a fastener attachment portion to which the fastener is attached, the fastener attachment portion being disposed in a downstream side of the condensing lens in a traveling direction of the light in the housing. | 06-03-2010 |
Tomoyuki Murakami, Miyagi JP
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20090296179 | Image forming apparatus - A polygon scanner including a polygon mirror, a bearing, a polygon motor, and a scanner board is mounted in an optical housing. A scanner-unit attachment portion to which the polygon scanner is attached is formed as a convex portion protruded from a bottom plate of the optical housing such that at least a planar shape of the polygon mirror is surrounded by the convex portion. The scanner board makes a tight contact with an upper surface of the convex portion in direct contact with each other, so that a bottom of the polygon scanner is covered by the convex portion and the bottom plate of the optical housing in a sealed manner. | 12-03-2009 |
Tomoyuki Murakami, Isesaki-Shi JP
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20090288620 | APPARATUS FOR AND METHOD OF CONTROLLING ENGINE - The present invention is related to an apparatus for and a method of controlling an engine provided with: a variable operation angle mechanism that is provided for varying a valve operation angle of an engine valve driven by a camshaft, and is capable of varying a center phase of the valve operation angle in response to a variation in the valve operation angle; and a variable valve timing mechanism provided for varying a rotating phase of the camshaft relative to a crankshaft of the engine, in which a target valve operation angle and a target rotating phase is calculated based on the engine operating state, and a correction value for correcting the target rotating phase based on the target valve operation angle is set. Then, the target rotating phase is corrected by the correction value, thereby controlling the variable valve timing mechanism based on the corrected target rotating phase. | 11-26-2009 |
20090292451 | VARIABLE OPERATION ANGLE MECHANISM AND APPARATUS FOR AND METHOD OF CONTROLLING ENGINE - The present invention relates to a variable operation angle mechanism that can improve engine performance at transient operation by optimally setting a ratio between change amounts of opening and closing timings accompanying a variation in valve operation angle of intake valve, and relates to an apparatus for and a method of controlling an engine including the variable operation angle mechanism. In the variable operation angle mechanism, ratio RIVO of change amount of opening timing IVO of intake valve to change amount of valve operation angle is set to be 20% or more and 40% or less, and preferably, to be 30%. In engine including a variable valve timing mechanism varying a rotating phase of intake camshaft relative to crankshaft and the variable operation angle mechanism, a target phase change amount varied by the variable valve timing mechanism is corrected for phase change amount accompanying the variation in the valve operation angle. | 11-26-2009 |
20110144891 | APPARATUS FOR AND METHOD OF CONTROLLING FUEL INJECTION OF INTERNAL COMBUSTION ENGINE - There is provided a configuration in which a cylinder which is in an inlet stroke when an internal combustion engine is in a stop (automatic stop) state is determined and stored, and when starting the engine upon detection of a start request, the fuel injection of an initial cycle to the cylinder, which has been determined as having been stopped in the inlet stroke when the engine was in the stop state before starting, is split into a plurality if injections at least including an injection before engine rotation, to thereby perform injections. As a result, startability is improved while suppressing pre-ignition at the time of starting. | 06-16-2011 |
20120067309 | APPARATUS FOR AND METHOD OF CONTROLLING VARIABLE VALVE TIMING MECHANISM - The present invention relates to an apparatus for and a method of controlling a variable valve timing mechanism. The valve timing mechanism changes over between a first cam for which the closing timing IVC of the intake valve is after intake bottom dead center, and a second cam for which the closing timing IVC is closer to intake bottom dead center than the closing timing IVC with the first cam. Here at the time of stopping the internal combustion engine, the valve timing mechanism changes over to the first cam, and the initial intake stroke performs operation at low effective compression ratio. In the second and subsequent intake strokes, the valve timing mechanism changes from the first cam to the second cam. | 03-22-2012 |
20130060452 | CONTROL APPARATUS AND CONTROL METHOD FOR INTERNAL COMBUSTION ENGINE - Control apparatus and method for internal combustion engine includes a fuel injection valve that injects fuel into an intake pipe at the upstream side of intake valves. When a deposition amount VDEPO of the intake valves is estimated, and becomes greater than a second threshold value SL | 03-07-2013 |
Tomoyuki Murakami, Isesaki JP
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20090230761 | Brake system for engine-operated vehicle and controlling method thereof - A brake system provided with a brake booster using intake negative pressure of an engine for boosting a brake operating force for a vehicle. A requested braking force is detected base on an operating amount of a brake pedal, and when the requested braking force is less than a threshold value, a master cylinder pressure prevailing in the master cylinder using an operating force boosted by the brake booster is supplied to the wheel cylinder. On the other hand, when the requested braking force is greater than or equal to the threshold value, brake fluid pressure having been boosted by a pump is supplied to the wheel cylinder. The threshold value is set to a value that becomes greater the larger the negative pressure inside the brake booster. | 09-17-2009 |
20120191326 | Control Device for Internal Combustion Engine and Internal Combustion Engine - A control device for an internal combustion engine that is capable of easily switching between a stratified operation mode and a non-stratified operation mode is provided for a port injection spark ignition internal combustion engine. Injection directions in which sprayed fuel is injected from a fuel injection valve are defined nearer the center of a cylinder than the centers of two intake valves. Injection timing of the fuel injection valve is controlled by the stratified operation mode completing the fuel injection in the exhaust stroke, and the non-stratified operation mode completing the fuel injection in a range from a compression stroke to the exhaust stroke. The injection end timing of the fuel injection valve in the stratified operation mode is retarded from the injection end timing in the non-stratified operation mode, in which the fuel injection time is equal to or shorter than that in the stratified operation mode. | 07-26-2012 |
20130110377 | Fuel Injection Apparatus for Internal Combustion Engine | 05-02-2013 |
Tomoyuki Murakami, Chigasaki-Shi JP
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20090007862 | VARIABLE VALVE ACTUATING APPARATUS FOR INTERNAL COMBUSTION ENGINE - A variable valve actuating apparatus for an internal combustion engine includes an intake valve operating angle varying mechanism, and an intake valve timing varying mechanism. The intake valve timing varying mechanism includes a housing rotating in synchronization with a crankshaft, and a vane member coupled to a drive shaft for intake valve operation, and movably mounted in the housing. The vane member includes a vane defining first and second fluid pressure chambers on first and second opposite sides of the vane. A hydraulic circuit is arranged to rotate the vane member relative to the housing by supply and return of a brake fluid to and from the first and second fluid pressure chambers so as to change the intake valve maximum lift phase. Coil springs are arranged to bias the vane member relative to the housing in a direction to retard the intake valve maximum lift phase. | 01-08-2009 |
20110137504 | Variable Valve Actuating Apparatus, Valve Phase Varying Apparatus and Control Apparatus for Internal Combustion Engine - An internal combustion engine is provided with a valve lift varying mechanism for intake valves and a valve phase varying mechanism for exhaust valves. A controller performs a control operation in response to a request to pause at least one cylinder while the engine is in operation. The control operation includes: a first operation of setting an intake valve lift to a zero-lift setpoint by the valve lift varying mechanism; and a second operation of setting an exhaust valve phase by the valve phase varying mechanism so as to set an exhaust valve opening timing to a first timing setpoint on an advance side of bottom dead center and set an exhaust valve closing timing to a second timing setpoint on a retard side of bottom dead center. The first and second timing setpoints are closer to top dead center than to bottom dead center. | 06-09-2011 |
Tomoyuki Murakami, Osaka JP
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20110136410 | METHOD FOR VIBRATION POLISHING VEHICLE WHEEL - A method for polishing a vehicle wheel having a three-dimensional shape, the vehicle wheel including a disc-shaped disc portion in which a plurality of window holes are provided and a cylindrical rim portion that is located around the disc portion, the method comprising: | 06-09-2011 |