Kawahata, JP
Junichi Kawahata, Tokyo JP
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20150295317 | ANTENNA DEVICE - An antenna device includes a first antenna element. The first antenna element includes a first conductive line portion extending from a power supply point, a first turn-back portion connected to the first conductive line portion, a second conductive line portion extending from the first turn-back portion, a second turn-back portion connected to the second conductive line portion, a third conductive line portion extending from the second turn-back portion, a first shortcircuit portion shortcircuiting the first conductive line portion and the second conductive line portion, the first shortcircuit portion being located between a reference portion and the first turn-back portion, the reference portion being located between the first turn-back portion and the second turn-back portion, and a second shortcircuit portion shortcircuiting the reference portion and the third conductive line portion. | 10-15-2015 |
Junichi Kawahata, Shinagawa-Ku, Tokyo JP
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20160079661 | VEHICLE-MOUNTED ANTENNA DEVICE - An antenna device that is built inside a hollow body fixed to a vehicle comprises a composite antenna element that has an antenna length corresponding to a first frequency band and is bent so as to also function as a capacitive antenna corresponding to a second frequency band and to improve an antenna effective capacitance and that is disposed in a substantially planar manner. The composite antenna element is disposed such that a planar direction thereof is inclined toward a vertical-direction side with respect to a metal body of the vehicle, and is offset-disposed to a left or right side in the hollow body with respect to a vehicle traveling direction, and is grounded in a metal portion of the vehicle near a position where the composite antenna element is disposed. | 03-17-2016 |
Kanae Kawahata, Kawasaki-Shi JP
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20140329057 | PHOTO-CURABLE COMPOSITION AND PATTERNING METHOD - A photo-curable composition having a high polymerization rate and a high polymerization conversion is provided. A patterning method having a high throughput is also provided. | 11-06-2014 |
20140349086 | PHOTO-CURABLE COMPOSITION AND PATTERNING METHOD USING THE SAME - The present invention provides a photo-curable composition that requires a small demolding force. The present invention also provides a UV imprint method that requires a small demolding force. | 11-27-2014 |
20150050426 | METHOD OF FORMING FILM - Provided is a method of manufacturing a film, including: applying, onto a substrate, a photocurable composition containing a polymerizable monomer, a photopolymerization initiator, and a photosensitive gas generator that generates a gas through light stimulation to form an applied film; bringing a mold into contact with the applied film; irradiating the applied film with light through the mold to cure the applied film and to generate the gas in the applied film; and releasing the mold from the applied film after the irradiation of the applied film with the light to form a film (cured film) having a predetermined pattern shape on the substrate, in which in the irradiation of the applied film with the light, a reaction rate of a polymerization reaction of the polymerizable monomer in the applied film is higher than a reaction rate of a gas-generating reaction of the photosensitive gas generator in the applied film. | 02-19-2015 |
Kazunari Kawahata, Kyoto JP
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20130285875 | FREQUENCY-VARIABLE CIRCUIT AND MULTI-BAND ANTENNA DEVICE - A multi-band antenna device includes a frequency variable circuit, a first radiating element used in a first frequency band, a second radiating element used in a second frequency band lower than the first frequency band, and a power supply circuit. The frequency variable circuit includes a parallel resonant circuit in which a capacitor and an inductor are connected in parallel, and a first variable capacitance element connected in parallel with the capacitor. An end of the parallel resonant circuit and the first variable capacitance element are connected to the power supply circuit and the first radiating element. Another end of the parallel resonant circuit and the first variable capacitance element are connected to the second radiating element. The parallel resonant circuit has a resonant frequency closer to the first frequency band than to the second frequency band. | 10-31-2013 |
20130293432 | MEMS MODULE, VARIABLE REACTANCE CIRCUIT AND ANTENNA DEVICE - Provided is a MEMS module that includes a MEMS element having a first capacitor electrode that can be displaced, a second capacitor electrode that opposes the first capacitor electrode, and driving electrodes that cause the first capacitor electrode to be displaced. The driving electrodes are connected to a control unit that applies a driving voltage to the driving electrodes and monitor terminals for detecting power. Thus, an element for monitoring power is not needed and a MEMS module, a variable reactance circuit and an antenna device are provided that are capable of realizing smaller size and lower loss. | 11-07-2013 |
Kazunari Kawahata, Kanagawa-Ken JP
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20100149053 | ANTENNA APPARATUS AND RADIO COMMUNICATION APPARATUS - An antenna apparatus and a radio communication apparatus are capable of separately controlling a resonance frequency in a basic mode and a resonance frequency in a higher mode and have a wide bandwidth in which the resonance frequency in the basic mode is variable. The antenna apparatus includes a feeding electrode | 06-17-2010 |
Kazunari Kawahata, Yokohama-Shi JP
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20090040120 | ANTENNA STRUCTURE AND RADIO COMMUNICATION DEVICE USING THE SAME - A radiation electrode is formed on a substrate of a surface mount antenna. One end of the radiation electrode forms a ground connection portion connected to ground, and the other end of the radiation electrode forms an open end. A ground connection electrode for connecting the open end of the radiation electrode to ground via a capacitance is provided on the substrate. No feeding electrode for feeding power to the radiation electrode is provided on the substrate. This surface mount antenna is mounted on a non-ground region (a region on which a ground electrode is not formed) of a board so as to constitute an antenna structure. On the board of the antenna structure, a feeding electrode for capacitively feeding power to the radiation electrode is provided at a position between the ground connection portion and the open end. | 02-12-2009 |
20090109106 | SURFACE-MOUNT ANTENNA AND ANTENNA DEVICE - A ground electrode is formed on the lower surface of a ferroelectric substrate, a control electrode including capacitor electrodes and an inductor electrode is formed on the upper surface of the ferroelectric substrate, and an upper-surface radiating electrode and an end-surface radiating electrode are formed on a paraelectric substrate. The shapes and dimensions of the ferroelectric substrate, paraelectric substrate, and radiating electrodes are determined such that when the ferroelectric substrate and the paraelectric substrate are stacked in layers, a circuit including the radiating electrodes resonates at frequencies outside a frequency band exhibiting frequency dispersion of a dielectric constant. | 04-30-2009 |
20090115674 | ANTENNA DEVICE AND WIRELESS COMMUNICATION APPARATUS - An antenna device and a wireless communication apparatus that are capable of obtaining a plurality of resonant frequencies and varying the plurality of resonant frequencies over a wide range are provided. A first antenna unit of an antenna device includes a feed electrode, a first radiation electrode, and a first frequency-variable circuit. The first frequency-variable circuit includes first and second reactance circuits each including a variable-capacitance diode. A control voltage is applied to the first frequency-variable circuit, and the resonant frequency of the first antenna unit can thus be varied. A second antenna unit includes the feed electrode, a second radiation electrode, and a second frequency-variable circuit. The second frequency-variable circuit includes first and third reactance circuits each including a variable-capacitance diode. A control voltage is applied to the second frequency-variable circuit, and the resonant frequency of the second antenna unit can thus be varied. | 05-07-2009 |
20090128428 | ANTENNA DEVICE AND WIRELESS COMMUNICATION APPARATUS - An antenna device capable of not only achieving multiple resonances and wideband characteristics but also achieving improvement of antenna efficiency and accurate matching at all resonant frequencies, and a wireless communication apparatus. In one example, an antenna device | 05-21-2009 |
20090273531 | ANTENNA DEVICE AND WIRELESS COMMUNICATION APPARATUS - A compact and low-cost antenna device in which no interference occurs even when many antenna units corresponding to various systems are mounted close together in a small area, and a wireless communication apparatus including the antenna device. An antenna device includes plural antenna units mounted on a single dielectric base. A first antenna unit having a lowest fundamental frequency is disposed at a left end of a non-ground region, a second antenna unit having a highest fundamental frequency of the plurality of the antenna units is disposed at a right end of the non-ground region, and a third antenna unit having a fundamental frequency between those of the first antenna unit and the second antenna unit is disposed between the first and second antenna units. A current-density control coil is connected between a first radiation electrode and a power feeder of the first antenna unit, while a reactance circuit is disposed in the middle of the first radiation electrode. Notches may be disposed between the first radiation electrode and a second radiation electrode and between the first radiation electrode and a third radiation electrode. | 11-05-2009 |
Kazunari Kawahata, Kyoto-Fu JP
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20120001821 | ANTENNA DEVICE AND WIRELESS COMMUNICATION DEVICE - There is provided an antenna device which has a structure using control lines of an integrated circuit as a portion of an emitting electrode so as to prevent electromagnetic coupling between the emitting electrode and the control lines, and thereby prevent the occurrence of unnecessary resonance and deteriorations in antenna characteristics. Also there is provided a wireless communication device of the same. The antenna device includes at least one emitting electrode and an other emitting electrode provided with the control lines. Connection circuits are provided between the control lines and the other emitting electrode to allow an RF signal of the emitting electrode to flow to the control lines such that the other emitting electrode and the control lines function as a single emitting electrode. | 01-05-2012 |
20120075158 | ANTENNA MODULE - An antenna module is provided and includes two feeding parts and having different frequencies of feeding on a circuit board. A first feeding radiation electrode is connected to the feeding part on a lower frequency side and performs an antenna operation. A second feeding radiation electrode is connected to the feeding part on a higher frequency side and performs an antenna operation. The first and second feeding radiation electrodes electrically connected, and the second feeding radiation electrode is smaller than and on the first feeding radiation electrode with an insulating part therebetween. The first feeding radiation electrode is configured to serve as an electrode that also performs an antenna operation of the second feeding radiation electrode, in such a manner that the second feeding radiation electrode performs an antenna operation in which the second feeding radiation electrode and the first feeding radiation electrode are electrically coupled to each other. | 03-29-2012 |
Ken Kawahata, Miyagi-Ken JP
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20150069997 | MANUFACTURING METHOD FOR CURRENT SENSOR AND CURRENT SENSOR - A manufacturing method is used for a current sensor including a current measurement circuit configured to include magnetoelectric conversion elements, a first amplification-and-correction circuit configured to amplify an output of the current measurement circuit and correct, based on a set first correction amount, a temperature characteristic of an offset, a second amplification-and-correction circuit configured to amplify an output of the first amplification-and-correction circuit, adjust a sensitivity, and correct, based on a set second correction amount, a magnitude of the offset, and a substrate in which the current measurement circuit, the first amplification-and-correction circuit, and the second amplification-and-correction circuit are provided, wherein after the first correction amount is set based on characteristics of the magnetoelectric conversion elements, the magnetoelectric conversion elements are mounted in the substrate and the second correction amount is set. | 03-12-2015 |
Kenji Kawahata, Sayama-Shi JP
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20110080222 | Voltage controlled oscillator - There is provided a voltage controlled oscillator using a Colpitts circuit capable of suppressing deterioration (decrease) in variable range (adjustable range) of an output frequency due to the influence of an inductance component on a conductive line, which connects a connection point between two capacitors of a feedback part and an emitter of a transistor. In a VCO using a Colpitts circuit, with respect to capacitors | 04-07-2011 |
20110080223 | Voltage controlled oscillator - There is provided a voltage controlled oscillator that is compact and can be manufactured at low cost. The voltage controlled oscillator is structured to include: a resonance part including a variable capacitance element and an inductance element, the variable capacitance element having a capacitance that varies according to a control voltage for frequency control input from an external part, and a series resonant frequency of the resonance part being adjusted according to the capacitance; an amplifying part amplifying a frequency signal from the resonance part; and a feedback part including a capacitance element for feedback and feeding the frequency signal amplified by the amplifying part back to the resonance part to form an oscillation loop together with the amplifying part and the resonance part, wherein the amplifying part is provided in an integrated circuit chip, and the resonance part and the capacitance element for feedback are formed as circuit components separate from the integrated circuit chip. The circuit components are selected according to an oscillation frequency. | 04-07-2011 |
20110080228 | Voltage controlled oscillator - To provide a voltage controlled oscillator capable of being treated as a lumped constant circuit, having small size and capable of obtaining an oscillation frequency in a high frequency band. A resonance part | 04-07-2011 |
Kohji Kawahata, Osaka JP
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20150229346 | AMPLIFIER CIRCUIT, ANTENNA MODULE AND WIRELESS COMMUNICATION APPARATUS - An amplifier circuit that amplifies a carrier wave that a transmitting and receiving part has received, and includes a superimposition wave generation part that generates a superimposition wave to be superimposed onto the carrier wave; an amplifying part that adds the carrier wave and the superimposition wave to obtain an amplified carrier wave and outputs the amplified carrier wave; and an amplitude detection part that detects, based on a change in an amplitude value of the carrier wave, that the carrier wave is a predetermined carrier wave that carries a predetermined communication signal. The amplifier circuit outputs the amplified carrier wave when having detected the predetermined carrier wave. | 08-13-2015 |
Koji Kawahata, Osaka JP
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20150358053 | AMPLIFIER CIRCUIT, ANTENNA MODULE, AND RADIO COMMUNICATION DEVICE - An amplifier circuit performs an amplification of a carrier signal received by a transmitting and receiving unit. The amplifier circuit includes an impedance matching circuit that performs matching of an impedance of the amplifier circuit when the transmitting and receiving unit and the amplifier circuit are connected. A superposition wave generating unit generates a superposition wave which is superimposed on the received carrier signal. A driver outputs an amplified carrier signal which is obtained by adding the superposition wave to the received carrier signal. An amplitude detecting unit detects whether the received carrier signal is a predetermined carrier signal superimposed with a predetermined communication signal, based on changes of an amplitude value of the received carrier signal. When the predetermined carrier signal is detected, the amplifier circuit outputs the amplified carrier signal. | 12-10-2015 |
Makoto Kawahata, Shizuoka JP
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20140144187 | GLASS FORMING APPARATUS - Forming defects and cracks caused by agglomerated glass components are prevented in a glass forming apparatus, such as a fusion draw glass forming apparatus. The glass forming apparatus has first peripheral walls; a forming member to form the glass into sheet form; second peripheral walls provided beneath the first peripheral walls with an interval therebetween; rollers provided within the second peripheral walls for drawing the glass in sheet form downward; partitioning plates for adjusting the temperature of the space; box shaped trays having open portions; and a tray holding mechanism that enables the trays to enter and exit the interval and that hold the trays such that the open portions of the trays extend along the distal ends of the partitioning plates at a position under the partitioning plates when the trays are within the interval. | 05-29-2014 |
Mitsuru Kawahata, Iwaki JP
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20110185350 | SHARED-PROGRAM UPDATING SYSTEM - A shared-program updating system for updating a shared program that is loaded in a memory and is dynamically linked to and shared by other programs, includes an update processing unit that updates a target shared program, which is shared by the other programs, and which is to be updated. The update processing unit includes 1) an updating access control section that directs each of a plurality of using programs, serving as the other programs that access the target shared program, to stop accessing the target shared program and, after the target shared program is updated, allows the using program to resume accessing the target shared program, and 2) an updating section that updates the target shared program after the using program has stopped accessing the target shared program. | 07-28-2011 |
Ryoji Kawahata, Yamato-Shi JP
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20140067009 | ELECTRICAL LIVING BODY STIMULATION SIGNAL WAVEFORM GENERATION DEVICE AND ELECTRICAL LIVING BODY STIMULATION DEVICE - An electrical living body stimulation signal waveform generation device includes a waveform generation unit that generates a low-frequency pulse signal wave and a high-frequency signal wave individually, and a waveform synthesis circuit that superimposes the high-frequency signal wave on the low-frequency pulse signal wave during an ON period of the low-frequency pulse signal wave to form a synthesized wave having a waveform in which a level gradually rises from a point of time when the superimposition is started and the ON period and an OFF period are continuously repeated, wherein the synthesized wave is given as an electrical stimulus to a living body. | 03-06-2014 |
Takashi Kawahata, Tokyo JP
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20150340789 | PRESSURE CONTACT TYPE CONNECTOR AND MANUFACTURING METHOD OF THE SAME - A pressure contact type connector includes: an upper flat plate portion; a lower flat plate portion which is disposed below the upper flat plate portion; a first spring portion which connects the upper and lower flat plate portions; and a second spring portion which extends upward from the lower flat plate portion and applies a resilient force to the upper flat plate portion, in which the first and second spring portions are wound about the upper flat plate portion when viewed from above in a plan view, and extend so that the spring portions do not interfere with each other when being compressed and extended in the vertical direction, the first spring portion is formed to be bent so that a width dimension is larger than a thickness dimension, and the second spring portion is formed to be bent so that a width dimension is larger than a thickness dimension. | 11-26-2015 |
Takashi Kawahata, Ota-Ku JP
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20090280657 | CARD CONNECTOR MECHANISM AND CARD ADAPTER HAVING THE CARD CONNECTOR MECHANISM - [Object] To provide a low-profile card connector mechanism and a card adapter having the card connector mechanism. | 11-12-2009 |
Toshikazu Kawahata, Sagamihara-Shi JP
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20140369883 | COPPER ALLOY AND METHOD OF PRODUCING SAME - To obtain a copper alloy having a tensile strength of 700 N/mm | 12-18-2014 |
Yasuoki Kawahata, Ibaraki JP
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20130180116 | PORTABLE CUTTING MACHINE - Front feet are provided at a lower part of a cutting-machine main body via a foot holder. Furthermore, a slider positioned on a front side relative to the front feet is provided at the lower part. When a workpiece to be cut is to be cut by a blade, the cutting-machine main body is tilted so as to let the blade go down. When the cutting-machine main body is tilted, a state where the front feet are in contact with the workpiece is switched to a state where the slider is in contact with the workpiece. Then, by moving the cutting-machine main body forward while sliding the slider on the workpiece, the workpiece is cut by the blade. In the cutting operation, the front feet can get away from the workpiece. Therefore, damage of the front feet can be prevented, and the running cost can be suppressed. | 07-18-2013 |
Yasuoki Kawahata, Hitachinaka-Shi JP
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20100283332 | Electric power tool - An electric power tool includes: a motor including a motor shaft; a tip tool driven by the motor; a housing that houses the motor; a switching element for driving the motor; and a bearing that can retain the motor shaft. The switching element is provided so as to overlap with the bearing in a direction of the motor shaft inside the housing. | 11-11-2010 |
Yasutaka Kawahata, Otsu JP
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20110216213 | METHOD FOR ESTIMATING A PLANE IN A RANGE IMAGE AND RANGE IMAGE CAMERA - 3D data of pixels arranged in a square lattice is converted to a houndstooth arrangement, a largest value among respective magnitudes of cross products of all pairings of the normal vector of a small triangle of interest and the normal vectors of three adjacent small triangles is derived, and a large triangle composed of the small triangle of interest and the adjacent small triangles is determined to be a plane candidate if the largest value is less than or equal to a first threshold, after which similar processing is repeated with this large triangle taken as a small triangle, and this repetition is recursively performed while enlarging the small triangle of interest, and when the area of a new large triangle is greater than or equal to a predetermined area, the region thereof is determined to be a plane and separated from a range image. | 09-08-2011 |
20120062749 | HUMAN BODY IDENTIFICATION METHOD USING RANGE IMAGE CAMERA AND HUMAN BODY IDENTIFICATION APPARATUS - A human body identification method includes a monitoring target region capturing step of obtaining a range image of a monitoring target region using a range image camera, a normal vector image calculation step of calculating a normal vector image, a template preparation step of preparing, as a template, a normal vector image from a range image captured so as to include at least a head portion of a human body, a template scaling step of scaling the size of each template based on range information that is a pixel value, a human body corresponding region estimation step of estimating at least one region corresponding to a human body, and a number-of-persons determination step of determining the number of human bodies based on a logical sum of the at least one region estimated as corresponding to a human body. | 03-15-2012 |
Yasutaka Kawahata, Otsu-Shi JP
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20130016880 | TRAFFIC MONITORING DEVICEAANM KAWAHATA; YasutakaAACI Otsu-shiAACO JPAAGP KAWAHATA; Yasutaka Otsu-shi JP - A traffic monitoring device determines accurately the number of objects (H) such as, for example, human bodies present within a supervised sector ( | 01-17-2013 |
Yuichi Kawahata, Kawasaki JP
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20080304157 | Chromatic dispersion compensation device and method - A chromatic dispersion compensator whereby the amount of dispersion and the group delay time can be easily adjusted. A dispersion unit, a transmitting lens and a group delay generation unit are arranged along the optical axis of incident light. The dispersion unit separates the incident light into beams of respective different wavelengths. The transmitting lens is arranged across the optical paths of the beams of different wavelengths separated by the dispersion unit, and refracts the beams at different angles according to their respective incidence positions. The group delay generation unit is arranged across the optical paths of the beams of different wavelengths refracted by the transmitting lens, causes the beams to undergo propagation delay for periods corresponding to their respective incidence positions, and converges and emits the beams of different wavelengths. Consequently, the beams of different wavelengths are imparted group delay corresponding to the refracting angles of the transmitting lens. | 12-11-2008 |
Yukiyasu Kawahata, Tokyo JP
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20150042515 | COMMUNICATION DEVICE, COMMUNICATION METHOD, AND PROGRAM - A transmission system that can continue communication even if a tracking error exists and to reduce interference on other transponders when transmitting a video and audio between an endstation facility and another endstation facility via a transponder mounted on communications satellite. This transmission system includes a tracking antenna that tracks a transponder, a tracking error calculation circuit that obtains a tracking error in a tracking operation of the tracking antenna, a transmission level control circuit that obtains a transmission level of a signal in response to the tracking error, and a transmitter that transmits the signal at the obtained signal level via the tracking antenna to the transponder of the communication target. | 02-12-2015 |