Ohkawara, JP
Hiroki Ohkawara, Aichi-Ken JP
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20100239925 | REFORMING DEVICE AND FUEL CELL SYSTEM - In a reforming device and a fuel cell system, the ignition and combustion at a burner section is stabilized regardless of the temperature of a reforming section by supplying the burner section with the combustible gas depending on the temperature of the reforming section at the time of a starting operation and after the generation of steam begins at an evaporator section. At the time of a starting operation and after steam generation detecting means detects the generation of steam, a control device of a reforming device executes control to switch the combustions of at least first combustible gas and second combustible gas at the burner section based on the state of the burner section and the temperature of the reforming section at the time of detecting the generation of steam as well as on the temperature of the reforming section after the time subsequent thereto. | 09-23-2010 |
Hiroki Ohkawara, Okazaki-Shi JP
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20120208097 | FUEL CELL SYSTEM AND DESULFURIZATION UNIT FOR THE SAME - A desulfurization unit for a fuel cell system includes a first desulfurizer arranged in a temperature environment ranging from 50° C. to 200° C. and accommodating a desulfurizing agent including a porous material serving as a base material, the desulfurizing agent exerting a desulfurization effect in a normal temperature range, the first desulfurizer adsorbing a sulfur compound included in a source gas in the temperature environment ranging from 50° C. to 200° C. when the source gas having a low dew point is supplied through a source gas passage to the first desulfurizer and when the source gas having a high dew point is supplied through the source gas passage to the first desulfurizer. | 08-16-2012 |
20120208098 | FUEL CELL SYSTEM - A fuel cell system includes a source gas passage including a first desulfurizer that has a desulfurization performance relative to a source gas having a relatively higher dew point, and a second desulfurizer that has the desulfurization performance relative to a source gas having a relatively lower dew point and the source gas having the relatively higher dew point. The desulfurization performance of the second desulfurizer relative to the source gas having the relatively higher dew point is lower than the desulfurization performance of the second desulfurizer relative to the source gas having the relatively lower dew point. The first desulfurizer, the second desulfurizer, and a flowmeter are arranged at the source gas passage in the aforementioned order from an upstream side to a downstream side of the source gas passage in a flow direction of the source gas. | 08-16-2012 |
Hiroki Ohkawara, Nishikamo-Gun JP
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20090136801 | REFORMING APPARATUS - A reformer including a reforming section generating reformed gas from reforming fuel supplied thereto, a combustion section burning combustion fuel supplied thereto with combustion oxidizer gas supplied thereto to heat the reforming section with the combustion gas, a combustion gas flow passage allowing the combustion gas discharged from the combustion section to flow, an oxygen density detecting device provided on the combustion gas flow passage detecting oxygen density in the combustion gas flow passage, and a controller judging the ignition of the combustion section based on the oxygen density detected by the oxygen density detecting device. | 05-28-2009 |
Hiroto Ohkawara, Ibaraki-Ken JP
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20090066832 | VIDEO CAMERA APPARATUS INCLUDING AUTOMATIC FOCUSING - A video camera includes a gate circuit for extracting a sharpness signal relative to an area which is set in a portion of a picture, a focus adjusting device for performing focus adjustment on the basis of the sharpness signal relative to the area, and an area selecting circuit for controlling the gate circuit to vary the area in size and determining a size of the area during a driving of a variator lens in accordance with a size of the area and a focal length used before the driving of the variator lens. | 03-12-2009 |
Junichi Ohkawara, Kanagawa JP
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20090173685 | BLOOD TREATMENT FILTER AND BLOOD TREATMENT CIRCUIT - A blood treatment filter which comprises a housing including an inlet and an outlet, and a filter unit for filtering blood containing erythrocytes, platelets and leukocytes as blood cell components is provided. | 07-09-2009 |
Junpei Ohkawara, Osaka-Shi JP
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20120075737 | METHOD OF MANUFACTURING COLOR FILTER AND COLOR FILTER - A method of manufacturing a color filter according to the present invention is a method of manufacturing a color filter including a plurality of translucent colored layers of different colors on a transparent substrate, including the steps of forming a black matrix layer on the transparent substrate with photolithography, forming one translucent colored layer selected from among the plurality of translucent colored layers with photolithography, and forming a remaining translucent colored layer of the plurality of translucent colored layers with ink-jetting. With this approach, a method of manufacturing a color filter that can attain excellent image quality and can be manufactured at low cost can be provided. | 03-29-2012 |
Junya Ohkawara, Yokohama-Shi JP
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20100295612 | POWER SERIES DIGITAL PREDISTORTER AND CONTROL METHOD THEREFOR - A power series digital predistorter includes a combiner which combines an output from a linear transmission path with an output from an odd-order distortion generating path, an analog-to-digital converter which converts a feedback signal from an output of a power amplifier to a digital feedback signal, an odd-order distortion vector control part which controls vector adjustment performed by an odd-order distortion vector adjusting part in the odd-order distortion generating path, a cancellation signal generating part which generates a cancellation signal from an input transmission signal, a combiner which is inserted in a feedback signal path and which combines the cancellation signal with a signal from the feedback signal path, and a cancellation signal control part which controls the cancellation signal generating part so that the cancellation signal suppresses a main signal component in the feedback signal at the combiner. | 11-25-2010 |
20110050339 | POWER SERIES DIGITAL PREDISTORTER AND DISTORTION COMPENSATION CONTROL METHOD THEREFOR - A power series digital predistorter and a distortion compensation control method for the power series digital predistorter are capable of adjusting the coefficients of a frequency characteristic compensator at high speed. A controller in the power series digital predistorter collectively sets adjustment amounts for the phases in bands in an N-th order frequency characteristic compensator; collectively sets adjustment amounts for the amplitudes in the bands in the N-th order frequency characteristic compensator; determines whether an index indicating the degree of cancellation of a distortion component generated in a power amplifier satisfies a preset condition; and, if the index does not satisfy the condition, performs control such that the adjustment amounts for the phases and the adjustment amounts for the amplitudes are set again. | 03-03-2011 |
20110210789 | POWER SERIES DIGITAL PREDISTORTER AND DISTORTION COMPENSATION CONTROL METHOD THEREOF - Coefficients W | 09-01-2011 |
Junya Ohkawara, Chiyoda-Ku JP
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20130141160 | POWER SERIES DIGITAL PREDISTORTER AND CONTROL METHOD THEREOF - A PAPR observation unit that measures PAPR in a distributed output of an input signal and PAPR in a combined output of a linear transmission path and a third order distortion generation path, a distortion observation unit that observes distortion in the output of a power amplifier, and a controller are provided, where the controller includes a third order out-of-band distortion compensation coefficient control unit that adjusts coefficients corresponding to an outside of an input signal band among frequency characteristic compensator coefficients on the basis of distortion observed by the distortion observation unit and a third order in-band distortion coefficient control unit that adjusts coefficients corresponding to an inside of the input signal band among frequency characteristic compensator coefficients on the basis of the observed PAPR. | 06-06-2013 |
Junya Ohkawara, Tokyo JP
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20140191799 | PREDISTORTER AND PREDISTORTER CONTROL METHOD - In a predistorter that can compensate an intermodulation distortion component generated in a power amplifier even when employing carrier aggregation, a linear transmission path delays and transmits an input signal. Signal generation units generate individual carrier distortion signals for respective carriers included in an input signal to output an individual carrier distortion compensation signal. A sub-signal generation unit generates a carrier inter-modulation distortion signal from the input signal and the individual carrier distortion signal and outputs a carrier inter-modulation distortion compensation signal. A signal divider divides the input signal among the linear transmission path, the signal generation units, and the sub-signal generation unit. A signal combiner combines the individual carrier distortion compensation signal and the carrier inter-modulation distortion compensation signal to generate an output signal to an amplifier. | 07-10-2014 |
Jyunya Ohkawara, Yokohama-Shi JP
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20100060356 | POWER SERIES PREDISTORTER AND CONTROL METHOD THEREOF - A power series predistorter of the present invention includes a delay path for delaying a signal, a distortion generation path having an N-th order distortion generator and a vector adjuster, a divider for dividing an input signal between the delay path and the distortion generation path, a combiner for combining the output signal of the delay path and the output signal of the distortion generation path, and a controller for controlling the vector adjuster. The controller includes a setting unit, a distortion component measurement unit, a minimum condition calculation unit, and a recording unit. The setting unit specifies the phase or amplitude value of the vector adjuster. The distortion component measurement unit measures the distortion component of a power amplifier. The minimum condition calculation unit obtains a phase or amplitude value that minimizes the distortion component by function approximation, using the magnitude of the distortion components corresponding to three or more phase or amplitude values specified for sampling by the setting unit. | 03-11-2010 |
Masaaki Ohkawara, Kanagawa JP
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20160083266 | SEAWATER DESALINATION DEVICE AND SEAWATER DESALINATION METHOD - Embodiments of the invention provide a seawater desalination device, including a steam re-compressor configured to pressurize steam by pressurizing a steam; a first heat exchanger configured to exchange an amount of sensible heat of seawater to be desalinated with an amount of liquid sensible heat after pressurized steam is condensed, and an amount of sensible heat of a concentrated liquid after seawater is concentrated; a second heat exchanger configured to exchange an amount of heat of pressurized steam, an amount of latent heat of vaporization of seawater, and an amount of sensible heat when seawater is evaporated, and configured to concentrate seawater; a seawater supply means; a steam supply means; a first discharge means; a second discharge means; and a water-droplet separation means. | 03-24-2016 |
Tadashi Ohkawara, Ibaraki JP
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20150174590 | CENTRIFUGE - A centrifuge including a rotor, a rotor chamber having an opening, a motor, a door configured to close the opening, an input/output unit configured to receive an input of an operating condition and to display an operating status, and a housing accommodating therein the rotor, the rotor chamber, the motor, the door and the input/output unit, wherein the housing has the opening at an upper surface thereof, wherein a light emitting part having a horizontal width longer than the opening is provided in the vicinity of a corner portion at which the upper surface and a front surface of the housing intersect with each other or in the vicinity of a front side of the opening, and wherein a light emitting form of the light emitting part is configured to be changed depending on the operating status. | 06-25-2015 |
Yuichi Ohkawara, Hyogo JP
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20150282484 | INSECTICIDE COMPOSITIONS - Insecticide compositions which comprise one or not less than two kinds of compounds being selected from a compound represented by the formula [I]: | 10-08-2015 |
Yuichi Ohkawara, Kawanishi-Shi JP
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20100227893 | INSECTICIDE COMPOSITIONS - Insecticide compositions which comprise one or not less than two kinds of compounds being selected from a compound represented by the formula [I]: | 09-09-2010 |
Yusuke Ohkawara, Yokohama-Shi JP
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20130088066 | VEHICLE SEAT - A vehicle seat including: a moving member that moves as one with a rail configured to move in a vehicle front-rear direction; a seat cushion that is coupled to the moving member through a lifter mechanism, is disposed above the rail, and is configured such that the top-bottom direction position of the seat cushion is capable of being adjusted by the lifter mechanism; and a gap concealing member that extends between a vehicle rear direction lower portion of the seat cushion and the rail to conceal a gap between the seat cushion and the rail. The gap concealing member is integrally formed from the top end portion to the bottom end portion. | 04-11-2013 |
20160059742 | RECLINING DEVICE AND VEHICLE SEAT - A reclining device including: a lower frame member that configures a portion of a frame of a vehicle seat; an upper frame member that configures a portion of the frame of the vehicle seat; a recliner that is provided between and welded to both the lower frame member and the upper frame member, and that couples the upper frame member to the lower frame member such that a relative rotation angle of the upper frame member is adjustable relative to the lower frame member; a lower side engagement portion that is provided at the lower frame member and that is formed in a circular arc shape that is concentric with the recliner; and an extension member that extends from the upper frame member toward a lower frame member side. | 03-03-2016 |