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Hiroshi Yoshikawa

Hiroshi Yoshikawa, Tokyo JP

Patent application numberDescriptionPublished
20110089755TRAIN BRAKING DEVICE - To provide a train braking device including a controller that controls a brake cylinder pressure acting on a brake cylinder based on a service brake command or an emergency brake command, the train braking device includes a supply valve for supplying compressed air to the brake cylinder and an exhaust valve for adjusting a pressure of the supplied compressed air. The controller includes an electromagnetic-valve drive circuit, which includes a first switch circuit that a first switch for slide control is connected in parallel to ends of a serially connected circuit of a first switch for emergency brake and a first switch for service brake control with its one end being connected to a circuit power supply and the other end being connected to the supply valve, and a second switch circuit that a second switch for slide control is connected in parallel to ends of a serially connected circuit of a second switch for emergency brake and a second switch for service brake control with its one end being connected to the first switch circuit and the other end being connected to the exhaust valve.04-21-2011
20110160943REGULATOR - A regulator includes a regulation computing section for computing and outputting an operation signal allow a process value from a controlled target to agree with a target value, and an output limiting section for restricting the operation signal from the regulation computing section for output to the controlled target. The output limiting section includes a function for outputting a limit deviation signal indicative of the degree of deviation from a predetermined limit. The regulator also includes an over-integration computing section for calculating a previous over-integration signal corresponding to a previous over-integration occurred during a previous control cycle on the basis of the speed-type integration regulating signal delivered by the regulation computing section and the limit deviation signal. The regulation computing section includes a function for allowing the previous over-integration signal to eliminate the previous over-integration by correcting an integral stored in itself.06-30-2011

Patent applications by Hiroshi Yoshikawa, Tokyo JP

Hiroshi Yoshikawa, Kanagawa JP

Patent application numberDescriptionPublished
20090238265Decoding apparatus, decoding method, and program - Disclosed herein is a decoding apparatus including: a pixel group information storage section configured to include memory areas each of which stores, as pixel group information, information concerning a corresponding pixel group and is referred to with a horizontal address of the pixel group, and an additional memory area that is located at a left end and stores a value indicating invalid pixel group information; a decoding information generation section configured to acquire the pixel group information identified by an address of a pixel group to be decoded and an address to the left thereof, and generating decoding information; a decoding section configured to perform a decoding process based on the decoding information; and a pixel group information update section configured to generate pixel group information and allowing it to be stored in the memory area identified by the address of the pixel group.09-24-2009
20090273491ARITHMETIC DECODING DEVICE - Disclosed herein is an arithmetic decoding device including: an arithmetic decoding unit configured to decode coded data resulting from arithmetic coding on a basis of a context variable indicating a probability state and a most probable symbol; a plurality of arithmetic registers configured to supply the context variable to the arithmetic decoding unit and retain a result of operation by the arithmetic decoding unit; and a plurality of save registers configured to save contents retained in the arithmetic registers.11-05-2009
20110058612MOTION-VECTOR COMPUTATION APPARATUS, MOTION-VECTOR COMPUTATION METHOD AND MOTION-VECTOR COMPUTATION PROGRAM - A motion-vector computation apparatus includes: a motion-vector correction section configured to correct a referenced motion vector to be used in a process to compute a motion vector of a second macro block pair so as to make the referenced motion vector compatible with a specific structure; a motion-vector holding section configured to store the referenced motion vector corrected to a motion vector compatible with the specific structure at an address determined in accordance with the structure of a first macro block pair; and a motion-vector computation section configured to read out the referenced motion vector from the motion-vector holding section in accordance with the structure of the second macro block pair and compute a motion vector of the second macro block pair on the basis of the referenced motion vector read out from the motion-vector holding section.03-10-2011

Hiroshi Yoshikawa, Aichi JP

Patent application numberDescriptionPublished
20100040494CEILING FAN - A ceiling fan includes a motor for rotating multiple blades. This motor includes a hollow shaft that is disposed upright on the center of a disc-like stator, and a rotor around an outer periphery of the stator. The rotor integrally rotates with the blades. This motor further includes a cylindrical bearing housing, and a pair of upper ball bearing and a lower ball bearing housed in this bearing housing. This bearing housing has a base in its center. The upper ball bearing is disposed over the base, and the lower ball bearing is disposed under the base in this bearing housing. Both bearings are fixed onto the hollow shaft.02-18-2010
20110002783CEILING FAN - A ceiling fan comprising a motor which rotates a plurality of blades provided in a horizontal direction, a shaft projecting from an upper portion of the motor, a pipe which is connected to an upper end of the shaft and which hangs from a ceiling surface, a connecting rod for connecting the pipe and the shaft with each other via through holes formed in the pipe and the shaft, respectively, a female screw which is threadedly engaged with the connecting rod, a displacement-correspondence tool which is displaced or which detects a displacement amount in correspondence with a relative positional displacement amount between the shaft and the pipe, and a power source control tool which controls energization to the motor in accordance with the displacement of the displacement-correspondence tool or the detected displacement amount.01-06-2011
20110052411CEILING FAN - A ceiling fan including a connecting fitting fixed to a ceiling, and a ceiling fan main body suspended from the connecting fitting via a suspension device. The ceiling fan main body includes a motor for rotating a plurality of blades attached in a horizontal direction, a shaft protruding to an upper part of the motor, and a joint portion fixed on an upper part of the shaft. The suspension device includes a first connecting portion capable of being movably mounted on the connecting fitting, and a second connecting portion located in a lower part of the first connecting portion. The joint portion is movably mounted on the second connecting portion.03-03-2011

Hiroshi Yoshikawa, Kawasaki-Shi JP

Patent application numberDescriptionPublished
20090015823INSPECTION APPARATUS AND METHOD - An inspection apparatus includes a captured image acquiring unit configured to acquire a captured image that is acquired by shooting an inspection target, an acquiring unit configured to acquire from the captured image a first image region and a second image region whose intensity distributions of reflected light with respect to an incident angle of illumination light emitted to the inspection target are different, and an image processing unit configured to perform image processing for performing different surface inspections on the first image region and the second image region respectively.01-15-2009
20100111515ILLUMINATION APPARATUS AND APPEARANCE INSPECTION APPARATUS INCLUDING THE SAME - An illumination apparatus which illuminates a surface of an object having a three-dimensional shape includes a light source, a guide configured to guide light from the light source to a surface of the object, and a diffuser which has a diffusion-reflection surface that faces a light exit surface of the guide via the object, wherein the diffuser is arranged at such a position that the light which is emitted from the guide and is not directly incident on the object is incident on the diffusion-reflection surface while a part of the light reflected and diffused by the diffusion-reflection surface is incident on a surface of the object.05-06-2010
20100220338MEASUREMENT APPARATUS AND METHOD FOR MEASURING SURFACE SHAPE AND ROUGHNESS - A measurement apparatus includes an illumination light setting unit which sets illumination light having an optical characteristic corresponding to a microstructure which is formed on the surface of a measurement target and is to be measured, a measurement unit which measures reflected light when the measurement target is irradiated with the illumination light, and an extraction unit which extracts, from the measured reflected light, information about the surface shape of the measurement target and the microstructure formed on the surface.09-02-2010
20100299103THREE DIMENSIONAL SHAPE MEASUREMENT APPARATUS, THREE DIMENSIONAL SHAPE MEASUREMENT METHOD, AND COMPUTER PROGRAM - A 3D shape measurement apparatus for measuring a 3D shape of an object existing on a measurement area, comprising, a pattern projection unit for projecting a pattern having a periodicity onto the measurement area, and a capturing unit for capturing an image of the area where the pattern is projected, wherein the measurement area is specified by a reference plane, a projection area of the pattern projection unit, and a capturing area of the capturing unit, and the pattern projection unit projects the pattern to be focused on the reference plane. The apparatus further comprises a first calculation unit for calculating phase information of a pattern of the captured image, a second calculation unit for calculating defocus amounts of the pattern in the captured image, and a third calculation unit for calculating a 3D shape of the object based on the phase information and the defocus amounts.11-25-2010
20110037984INFORMATION PROCESSING APPARATUS AND METHOD - An information processing apparatus includes an obtaining unit configured to obtain first information regarding a distribution of reflected light from a target to be measured and second information regarding geometrical-optics components of the reflected light, a calculating unit configured to calculate third information on the basis of the first information and the second information, the third information indicating an approximation of the distribution of reflected light, and an output unit configured to output information regarding wave-optics components of the reflected light on the basis of the third information.02-17-2011

Patent applications by Hiroshi Yoshikawa, Kawasaki-Shi JP

Hiroshi Yoshikawa, Saitama JP

Patent application numberDescriptionPublished
20100282213DRIVE CONTROL METHOD OF FLOW RATE CONTROL VALVE IN COMMON RAIL TYPE FUEL INJECTION CONTROL APPARATUS AND COMMON RAIL TYPE FUEL INJECTION CONTROL APPARATUS - To facilitate early stabilization of an integral value at the time of start up and improve stability and responsiveness of a rail pressure control.11-11-2010
20110224867DATA UPDATE PROCESSING METHOD AND VEHICLE OPERATION CONTROL DEVICE - To reliably perform updating of maximum values and minimum values of measurement data with a simple procedure without incurring an increase in the computational load of an arithmetic processing element such as a microcomputer. When processing is started, a most recent maximum value stored in a nonvolatile storage element 09-15-2011

Hiroshi Yoshikawa, Osaka JP

Patent application numberDescriptionPublished
20090209919Adhesive For Injection Needle, A Method For Bonding Injection Needle, A Syringe Front-Assembly And A Syringe - The present invention inhibits the occurrence of the foreign matters attributable to an adhesive for bonding an injection needle to a needle-base member so as to enhance the yield of a syringe when producing the same. A front-assembly (08-20-2009
20100015533NON-AQUEOUS ELECTROLYTE SECONDARY BATTERY - A non-aqueous electrolyte secondary battery including: a positive electrode that contains a transition metal oxide capable of absorbing and desorbing lithium ions; a negative electrode that is capable of absorbing and desorbing lithium ions; a porous film that is interposed between the positive electrode and the negative electrode; and a non-aqueous electrolyte, wherein at least one selected from inorganic oxide and polyamide is contained in the porous film, and 5 to 15 vol % of ethylene carbonate is contained in a non-aqueous solvent that is contained in the non-aqueous electrolyte.01-21-2010
20100220950METHOD FOR MANUFACTURING HUB UNIT AND HUB UNIT - In a state in which a first ball 09-02-2010
20110114560SPIRAL TYPE MEMBRANE ELEMENT AND SPIRAL TYPE MEMBRANE FILTERING DEVICE HAVING THE MEMBRANE ELEMENT, AND MEMBRANE FILTERING DEVICE MANAGING SYSTEM AND MEMBRANE FILTERING DEVICE MANAGING METHOD USING THE DEVICE - Provided are a spiral type membrane element that can ensure a larger amount of electric power without performing a cumbersome work and a spiral type membrane filtering device having the element, as well as a membrane filtering device managing system and a membrane filtering device managing method using the device. The spiral type membrane element comprises a sensor for detecting a property of liquid, a power generating section that generates electric power by using said liquid, and a wireless transmitting section that receives the electric power supplied from said power generating section and wirelessly transmits a detection signal from said sensor. By generating electric power in the power generating section with use of the liquid detected by the sensor, a larger amount of electric power can be ensured without performing a cumbersome work.05-19-2011
20110114561SPIRAL TYPE MEMBRANE FILTERING DEVICE AND MOUNTING MEMBER, AND MEMBRANE FILTERING DEVICE MANAGING SYSTEM AND MEMBRANE FILTERING DEVICE MANAGING METHOD USING THE SAME - Provided are a spiral type membrane filtering device by which an electric component can be re-used and a mounting member, as well as a membrane filtering device managing system and a membrane filtering device managing method using the same. An interconnector (05-19-2011
20110121574SPIRAL TYPE MEMBRANE ELEMENT, AND SPIRAL TYPE MEMBRANE FILTERING DEVICE HAVING THE SAME - Provided are a spiral type membrane element that can re-collect the electric power that is used in a good manner, and a spiral type membrane filtering device having the same. The spiral type membrane element comprises a power generating section that generates electric power by using a liquid, and an electric power outputting section that outputs, either in a wired manner or in a wireless manner, the electric power supplied from said power generating section. The electric power that is generated in the power generating section using the liquid (raw water, permeated water, or concentrated water) can be output from the electric power outputting section in a wired manner or in a wireless manner. Therefore, the electric power that is output from the aforesaid electric power outputting section can be used in an electric component disposed outside or can be stored into a capacitor section disposed outside.05-26-2011

Patent applications by Hiroshi Yoshikawa, Osaka JP

Hiroshi Yoshikawa, Kitasaku-Gun JP

Patent application numberDescriptionPublished
20090102300Spindle motor for a hard disk drive - The invention relates to a spindle motor for a hard disk drive comprising a baseplate (04-23-2009

Hiroshi Yoshikawa, Kanagawa-Ken JP

Patent application numberDescriptionPublished
20090096051SOLID STATE IMAGING DEVICE AND METHOD FOR MANUFACTURING SAME, AND SOLID STATE IMAGING MODULE - A solid state imaging device includes: an imaging device substrate with an imaging device section formed on a first major surface side thereof; a backside interconnect electrode provided on a second major surface side of the imaging device substrate and electrically connected to the imaging device section, the second major surface being on the opposite side of the first major surface; a circuit substrate provided with a circuit substrate electrode opposed to the second major surface; a connecting portion electrically connecting the backside interconnect electrode to the circuit substrate electrode; and a light shielding layer provided coplanar with the backside interconnect electrode or on the circuit substrate side of the backside interconnect electrode.04-16-2009

Hiroshi Yoshikawa, Okazaki JP

Patent application numberDescriptionPublished
20120076674LIQUID PRESSURE GENERATING APPARATUS AND DRIVING APPARATUS - A liquid pressure generating apparatus including a pump, and two one-way clutches arranged coaxially with the pump drive shaft in a line in the axial direction on the side of a first axial direction. The pump case includes a projecting portion projecting from the corresponding pump case. Inner races of the respective two one-way clutches are integrated with each other and form a common inner race. Outer races of the respective two one-way clutches are formed independently from each other and are driven respectively by pump driving members different from each other, and directions of restricted relative rotation with respect to the common inner race are identical to each other. The common inner race includes a coupling portion to be coupled to the pump driving shaft on the side of the first axial direction with respect to the projecting portion.03-29-2012
20120076675LIQUID PRESSURE GENERATING APPARATUS AND DRIVING APPARATUS - A liquid pressure generating apparatus including a pump; and two one-way clutches arranged coaxially with the pump's drive shaft. Inner races of the respective two one-way clutches are integrated with each other to form a common inner race. Outer races of the respective two one-way clutches are formed independently from each other and are driven respectively by pump driving members different from each other. The common inner race includes a coupling portion coupled to the pump drive shaft and extending in the radial direction and a cylindrical body portion extending from the coupling portion in a second axial direction opposite from the first axial direction on the radially outside the pump drive shaft. The body portion includes a depression indented radially outward on an inner peripheral surface thereof. A lubricant supply portion for the depression is provided radially inside the depression.03-29-2012