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Matsumoto, Yokohama-Shi

Atsuo Matsumoto, Yokohama-Shi JP

Patent application numberDescriptionPublished
20090108646VEHICLE SEAT - A seat back has a seat back frame, a plane spring structure, and a headrest provided at the upper end of a seat back frame. The plane spring structure has left and right side wires, and horizontal wires extending in the horizontal direction. Connection wires are provided between the seat back frame and plane spring structure. First end portions and second end portions of the connection wires function as detachable portions. At least one of these detachable portions is detached from the seat back frame or plane spring structure by the load applied to the seat back, when a vehicle is bumped from behind.04-30-2009

Kazumasa Matsumoto, Yokohama-Shi JP

Patent application numberDescriptionPublished
20120075507RADIATION IMAGING APPARATUS AND CONTROL METHOD FOR RADIATION IMAGING APPARATUS - A radiation imaging apparatus includes an imaging unit and an imaging control unit. The imaging control unit causes a switch unit, a accumulation unit, a removal unit, a holding unit, and an addition unit, which constitute a pixel circuit of the imaging unit, to operate at a timing before imaging operation by the imaging unit so as to fix unstable voltages of the accumulation unit, the removal unit, the holding unit, and the addition unit to a predetermined voltage of a power supply connected via a switch unit.03-29-2012
20120075515IMAGING APPARATUS AND CONTROL METHOD THEREOF - A radiation imaging apparatus includes: a radiation detection unit in which a plurality of photoelectric conversion units to convert radiation signals into charge signals and store the charge signals is located; a storage control unit configured to control the storage of the charge signals executed by the plurality of photoelectric conversion units; a reading control unit configured to control reading of the charge signals stored by the plurality of photoelectric conversion units; and a control unit configured to fix an indefinite potential generated at the radiation detection unit while at least one of the storage control of the charge signals by the storage control unit and the reading control of the charge signals by the reading control unit is not carried out.03-29-2012

Kengo Matsumoto, Yokohama-Shi JP

Patent application numberDescriptionPublished
20100061730OPTICAL TRANSMITTING OR RECEIVING UNIT INTEGRATING A PLURALITY OF OPTICAL DEVICES EACH HAVING A SPECIFIC WAVELENGTH DIFFERENT FROM EACH OTHER - An optical unit is disclosed, in which the optical unit provides four optical devices each of which corresponds to a specific wavelength different from each other. In the transmitter unit, the unit includes two optical modules each including two optical devices and one filter unit with a polarization beam filter. The optical beam form two optical devices are combined by the polarization beam filter, while the optical output from the optical modules are combined with the thin film filter.03-11-2010
20100142958OPTICAL RECEIVER FOR THE WDM SYSTEM AND METHOD TO CONTROL THE SAME - An optical receiver with a simplified arrangement able to compensate the optical loss of the transmission medium is disclosed. The optical receiver of the invention includes an SOA in the front end thereof, an optical de-multiplexer, and a plurality of receiver modules that receives de-multiplexed light. The optical gain of the SOA is adjusted based on the electrical signals output from respective optical modules. When the receiver modules show the output thereof in a preset range, the bias current is kept unchanged, while, one receiver module shows the output out of the range, the bias current is incremented or decremented. When one receiver module shows the output out of the absolute maximum/minimum, the bias current is forced to the initial value.06-10-2010
20100183307Optical transmitter outputting a plurality of signal light with a preset wavelength span - An optical transmitter that multiplexes a plurality of signal light each having less chirp characteristic by the CML technique is disclosed. The optical transmitter comprises a plurality of optical modules, a plurality of TEC controllers each driving the TEC in the optical module, a de-multiplexer that de-multiplexes the output of respective modules, an etalon filter, and a monitoring unit that monitors the component of the signal light output from respective modules. The TEC controller controls the temperature of the LD in the module such that two emission wavelengths of the LD each corresponding to the ON level and the OFF level is set in both side of one of the critical wavelengths of the etalon filter where the transmittance thereof becomes a maximum.07-22-2010

Mari Matsumoto, Yokohama-Shi JP

Patent application numberDescriptionPublished
20090327379RANDOM NUMBER GENERATING DEVICE - A random number generating device includes: a pulse voltage generator configured to generate a pulse voltage having an amplitude of 26 mV or more; a random noise generating element including source and drain regions formed at a distance from each other on a semiconductor substrate, a tunnel insulating film formed on a portion of the semiconductor substrate located between the source region and the drain region, and a gate electrode formed above the tunnel insulating film and to which the pulse voltage is applied, the random noise generating element configured to generate a random noise contained in a current flowing between the source region and the drain region; and a random number generating unit configured to generate a random number signal based on the random noise.12-31-2009
20100057820RANDOM NUMBER GENERATION APPARATUS - A random number generation apparatus includes: a random noise generation element comprising a source region and a drain region, a tunnel insulation film, a gate electrode, and a charge trap portion provided between the tunnel insulation film and the gate electrode and being capable of trapping charges, random noise being generated in a drain current flowing between the source region and the drain region on the basis of charges trapped in the charge trap portion; a random number conversion circuit for converting random noise generated from the random noise generation element to a random number; a first test circuit for performing a random number test to test quality of the random number output from the random number conversion circuit; and an initialization circuit for pulling out charges in the charge trap portion of the random noise generation element to the semiconductor substrate through the tunnel insulation film and thereby initializing the charge trap portion.03-04-2010

Patent applications by Mari Matsumoto, Yokohama-Shi JP

Naohisa Matsumoto, Yokohama-Shi JP

Patent application numberDescriptionPublished
20110179330WIRELESS COMMUNICATION TERMINAL AND COMMUNICATION CONTROL METHOD - A wireless communication terminal having a plurality of antennas with a variable relative distance includes a decoder for iterative decoding of reception signals including an error-correcting code received by the plurality of antennas) and a control unit for controlling an iteration count of decoding by the decoder in accordance with a distance between the antennas detected by an antenna distance detection unit for detecting the distance between the plurality of antennas.07-21-2011

Naomichi Matsumoto, Yokohama-Shi JP

Patent application numberDescriptionPublished
20100209923Probe for diagnosis of marfan syndrome and a method for screening using the probe - The purpose of this invention is to provide a probe for diagnosis of Marfan syndrome, which enables early diagnosis of Marfan syndrome, and to provide a method for screening using said probe. The invention is a probe for a Marfan Syndrome characterized by using a nucleic acid comprising following (a) or (b); 08-19-2010

Noriyuki Matsumoto, Yokohama-Shi JP

Patent application numberDescriptionPublished
20090009036PRESSURE TRANSDUCER - A pressure transducer for high-pressure measurements comprising a housing and a piezoelectric resonator located in the housing, wherein the resonator comprises double rotation cut piezoelectric material configured or designed for vibrating in the fundamental tone of dual modes of the fast and slow thickness-shear vibrations.01-08-2009
20100050761DETECTING GAS COMPOUNDS FOR DOWNHOLE FLUID ANALYSIS - A gas separation and detection tool for performing in situ analysis of borehole fluid is described. A separation system such as a membrane is employed to separate one or more target gasses from the borehole fluid. The separated gas may be detected by reaction with another material or spectroscopy. When spectroscopy is employed, a test chamber defined by a housing is used to hold the gas undergoing test. Various techniques may be employed to protect the gas separation system from damage due to pressure differential. For example, a separation membrane may be integrated with layers that provide strength and rigidity. The integrated membrane separation may include one or more of a water impermeable layer, gas selective layer, inorganic base layer and metal support layer. The gas selective layer itself can also function as a water impermeable layer. The metal support layer enhances resistance to differential pressure. Alternatively, the chamber may be filled with a liquid or solid material.03-04-2010
20100147083PACKAGING FOR DOWNHOLE PRESSURE TRANSDUCERS - Methods and related systems are described for a sealed housing for downhole transducers. The housing system includes a housing body and a transducer positioned within the housing body, and one or more flexible members sealably mounted on the housing body. The flexible members each have one or more undulations which facilitate movement of the flexible member in directions primarily perpendicular to the surface of the flexible member. The dimensions of the one or more undulations are designed so as to optimize the ability of the movements of the member thereby accommodating volume changes in the sealed housing. A substantial amount of compensating material can also be positioned within the housing body. The compensating material has a coefficient of thermal expansion substantially less than that of the housing material.06-17-2010
20100148782RUGGED QUARTZ CLOCK - A resonator clock suitable for use in downhole conditions is described. The resonator clock includes a resonator portion of piezoelectric material; two electrodes in electrical communication with the resonator portion such that the resonator portion resonates when voltage is applied between the two electrodes; and four supports to support the resonator portion. The supports are dimensioned and positioned to support the resonator portion under shock and vibration encountered in downhole use. The supports and the resonator portion are formed from the same continuous piece of piezoelectric material.06-17-2010
20110030455VIBRATING WIRE VISCOMETERS - Vibrating wire viscometers are disclosed. An example vibrating wire viscometer includes first and second electrically conductive tubes, where the first tube is at least partially inserted into the second tube, and where the first and second tubes are coupled via an electrically insulating bonding agent. The example viscometer further includes first and second electrically conductive pins inserted into respective ones of the first and second tubes, and an electrically conductive wire fastened to the first and second pins to vibrate in a downhole fluid to determine a viscosity of the downhole fluid.02-10-2011
20110083501VIBRATING WIRE VISCOMETERS - Vibrating wire viscometers are disclosed. An example apparatus to determine the viscosity of a downhole fluid is described, the apparatus including a wire to be immersed in a downhole fluid, to vibrate when an alternating current is applied to the wire within a magnetic field, and to generate an electromotive force when vibrating within the magnetic field, the wire comprising a first resistance. The apparatus further includes a nulling circuit coupled to the wire, wherein the nulling circuit comprises a second resistance that is selectable to be substantially equal to the first resistance, and an analyzer coupled to the wire and the nulling circuit to determine the first resistance, the second resistance, and a viscosity of the downhole fluid based on the first and second resistances, at least one characteristic of the wire, and the electromotive force.04-14-2011
20110283801LOW COST RESONATOR-BASED PRESSURE TRANSDUCER - An improved manufacturing process for resonator-based pressure transducers is described. The process is a batch process in which several resonators are shaped simultaneously, using an etching process such as plasma etching. The end pieces are also shaped, if required, for several transducers. The end pieces and resonators are sandwiched together prior to separating the individual transducer units. The individual transducer units are then separated using a cutting process. The described process can be used to manufacture pressure transducers having a substantially smaller size, for example 5-6 mm outer dimensions and 2-3 mm resonators. The outer shape of the transducers can be a non-circular cylindrical shape such as that of a right square prism or an octagonal prism.11-24-2011

Patent applications by Noriyuki Matsumoto, Yokohama-Shi JP

Ryoichi Matsumoto, Yokohama-Shi JP

Patent application numberDescriptionPublished
20100105323Electric-Field Communication Device - A signal electrode (04-29-2010

Ryota Matsumoto, Yokohama-Shi JP

Patent application numberDescriptionPublished
20100322650IMAGE FORMING APPARATUS - An image forming apparatus includes an image bearing member; a charging device, including a rotatable magnetic particle carrying member and electroconductive magnetic particles carried on the rotatable magnetic particle carrying member, for charging the image bearing member by contacting the magnetic particles to the image bearing member; the measuring device for measuring magnitudes of a first force in a first direction and a second force in a second direction which are produced in a contact region between the image bearing member and the magnetic particle, wherein the first direction and second direction are independent from each other; and a control device for controlling an image forming operation on the basis of the forces measured by the measuring device.12-23-2010
20110081155IMAGE FORMING APPARATUS - An image forming apparatus includes a rotatable drum; charging means for charging the drum, the charging means including a first carrying member for carrying electroconductive magnetic particles and a second carrying member for carrying the magnetic particles, the second carrying member being disposed at a downstreammost position with respect to a rotational direction of the drum, wherein the magnetic particle is in contact with the drum while charging the drum; latent image forming means, disposed at a position downstream of the charging means, for forming a latent image on the drum; potential detecting means for detecting a surface potential of the drum, the potential detecting means being disposed downstream of the charging means and upstream of the latent image forming means; phase detecting means for detecting information relates to a rotational phase of the second carrying member; control means for controlling voltages applied to the first carrying member and to the second carrying member; and wherein the control means is capable of executing an operation in a control mode for controlling the voltages applied to the first carrying member and to the second carrying member, on the basis of a result of detection by the potential detecting means and a result of detection by the phase detecting means.04-07-2011

Shigeru Matsumoto, Yokohama-Shi JP

Patent application numberDescriptionPublished
20090288416TURBINE SYSTEM AND METHOD FOR STARTING-CONTROLLING TURBINE SYSTEM - The present invention provides a turbine system which can start a turbine, while controlling thermal stress generated in a turbine rotor and an expansion difference, due to thermal expansion, between a casing and the turbine rotor, to be lower than defined values, respectively. The turbine system (11-26-2009
20100198640ELECTRIC-POWER-GENERATING-FACILITY OPERATION MANAGEMENT SUPPORT SYSTEM, ELECTRIC-POWER-GENERATING-FACILITY OPERATION MANAGEMENT SUPPORT METHOD, AND PROGRAM FOR EXECUTING OPERATION MANAGEMENT SUPPORT METHOD ON COMPUTER - An electric-power-generating-facility operation management support system includes an analyzing unit that calculates operation plan creating basic information based upon received information with regard to lifespan calculating expressions, present electric-power market information, and operation-history information with regard to electric power generation, and an operation plan creating unit that calculates and outputs operational conditions of electric power generating facilities as created operation planning based upon said operation plan creating basic information calculated by said analyzing unit. The analyzing unit includes a lifespan-consumption-costs calculating unit that calculates lifespan consumption costs of said electric power generating facilities, a reserve-electric-power-price estimating unit that estimates the market price of reserve electric power, and a reserve-electric-power supply-probability estimating unit that estimates probability of supply of reserve electric power.08-05-2010

Patent applications by Shigeru Matsumoto, Yokohama-Shi JP

Shogo Matsumoto, Yokohama-Shi JP

Patent application numberDescriptionPublished
20100061777IMAGE FORMING APPARATUS - An image forming apparatus for transporting a recording medium on which an image is formed includes a guide plate. The guide plate guides the recording medium to a predetermined position in the image forming apparatus and includes a flexible sheet member and a rigid holding member. The rigid holding member holds the flexible sheet member such that the flexible sheet member projects from a front end of the rigid holding member. The projecting portion of the flexible sheet member includes at least three flexible sub-portions having a different bend-stiffness per unit area from each other, and the bend-stiffness per unit area is reduced toward a downstream side in a sheet guide direction.03-11-2010

Shoji Matsumoto, Yokohama-Shi JP

Patent application numberDescriptionPublished
20090016031CIRCUIT CONNECTION STRUCTURE AND PRINTED CIRCUIT BOARD - While gradually increasing the widths of signal lines (01-15-2009
20120019331PRINTED CIRCUIT BOARD - A printed circuit board includes signal transmitting units that transmit signals, signal receiving units that receive signals, and a plurality of signal lines that connect the signal transmitting units and the signal receiving units. A resistor having a value Rp [Ω] of resistance with a first tolerance is provided between two signal lines that are adjacent to each other. In addition, a capacitor element that is connected in series to the resistor and that has a value Cp [F] of capacitance with a second tolerance is also connected between the two signal lines. In relation to the rise time tr [s] of the signals output from the signal transmitting units, the value Rp of resistance of the resistor and the value Cp of capacitance of the capacitor element are set such that an expression (Cp×Rp)×0.9 tr/3≦(Cp×Rp)×1.1 is satisfied.01-26-2012

Patent applications by Shoji Matsumoto, Yokohama-Shi JP

Tae Matsumoto, Yokohama-Shi JP

Patent application numberDescriptionPublished
20110076040IMAGE FORMING APPARATUS AND DENSITY UNEVENNESS DETECTION METHOD - A plurality of test patches each including a dark and light image which has density unevenness of a predetermined period in which the plurality of test patches are differentiated in phase difference relative to a phase of density unevenness induced by rotational unevenness occurring at a predetermined period in the motor for driving a photosensitive drum is formed. Then, density information of the plurality of test patches with is detected by a density sensor 03-31-2011
20110243582IMAGE FORMING APPARATUS - An image forming apparatus executes banding correction at a level determined according to variation of the density characteristic of the image forming apparatus to achieve a high quality image. In the image forming apparatus, a banding correction unit acquires information about a cause of density variation that may occur in a sub scanning direction of a rotation member, which is used for forming a toner image on an image carrier based on input image information and sets, based on the acquired information, the level of the density correction, which is determined according to the density variation cause information.10-06-2011
20110299861IMAGE FORMING APPARATUS HAVING BANDING CORRECTION FUNCTION - The image forming apparatus includes a CPU that performs control to form an inspection image for determining whether or not banding is suppressed to be smaller than a predetermined threshold value; and a density sensor that detects an intensity of banding periodically occurring in a sub-scanning direction of the formed inspection image. If based the detected banding intensity, the CPU has determined that the banding is not suppressed to be smaller than the predetermined threshold value, the CPU performs control to not perform banding correction or performs control to re-set a relationship between a phase of a rotary member and correction information.12-08-2011

Toshiya Matsumoto, Yokohama-Shi JP

Patent application numberDescriptionPublished
20090152803RECORDING APPARATUS - A recording apparatus has a paper cassette in which sheets are loaded and a cassette feeding roller that feeds the sheets. The paper cassette is configured to be inserted into the main body of the recording apparatus rearward from the front of the main body. The paper cassette can move between a first fixing position where the paper cassette is fully retracted within the main body and a second fixing position where the sheets positioned at the end of the paper cassette in the inserting direction into the main body can be fed by the cassette feeding roller.06-18-2009
20090297210IMAGE FORMING APPARATUS - An image forming apparatus comprising: a recording unit; a reading unit rotatably supported to the upper portion of the recording unit so as to be openable and closable about one end as a fulcrum and reads an original; an L-shaped guide groove which is provided for the recording unit and in which a long groove portion and a short groove portion are connected by a bending portion; and a stay at one end is fitted into the guide groove and coupled therewith, the other end is swingably coupled with the reading unit. The guide groove has a restricting mechanism configured to alternately guide the projecting portion to the long groove portion and the short groove portion when the projecting portion moves from the bending portion.12-03-2009

Patent applications by Toshiya Matsumoto, Yokohama-Shi JP

Yoshinori Matsumoto, Yokohama-Shi JP

Patent application numberDescriptionPublished
20100270716ANTI-VIBRATION APPARATUS - A liquid (L) sealed in a first mounting member (10-28-2010

Yoshiyuki Matsumoto, Yokohama-Shi JP

Patent application numberDescriptionPublished
20110187959ELECTRONIC APPARATUS - An electronic apparatus includes: a display panel, a retention member retaining the display panel, and an external case covering the retention member. The retention member has a retention main body portion retaining the display panel and a plurality of fastening portions for fixing to the external case. At least one of the plurality of fastening portions has a displacement absorbing portion absorbing displacement of the retention member.08-04-2011