Takahiro Koyama has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
Abstract: A microwave-heating system irradiates sealed packaged foods with microwaves to heat the packaged foods at 100° C. or higher for heat sterilization. The microwave-heating system includes a microwave generator to irradiate the packaged foods with microwaves of 2450 MHz in a multi-mode and a microwave generator to irradiate the packaged foods in a waveguide with microwaves of 915 MHz in a single-mode.
Abstract: There is provided an engine capable of reducing oil consumption. The engine includes a cylinder head, a cylinder head cover mounted above the cylinder head, a rocker arm covered by the cylinder head cover, and a breather chamber provided inside the cylinder head cover. As a front-rear direction is defined by a longitudinal direction of the cylinder head cover, the breather chamber has a blow-by gas inlet at one side in the front-rear direction, a blow-by gas outlet at another side in the front-rear direction, and an oil discharging guide chamber at an intermediate part in the front-rear direction. The blow-by gas inlet is opened on a bottom wall of the breather chamber, and a peripheral wall of the oil discharging guide chamber is protruded downwardly from the bottom wall of the breather chamber toward between the rocker arm provided at a side of the blow-by gas outlet and the blow-by gas inlet.
Abstract: An antenna device according to an exemplary embodiment radiates electromagnetic waves. In the antenna device, a dielectric window is in contact with a lower wall of a first waveguide, the first waveguide is provided between the dielectric window and a second waveguide and extends in a direction crossing a tube axis of the second waveguide, a dispersion part in the first waveguide disperses the electromagnetic wave in the first waveguide, a coaxial conversion part causes propagation of the electromagnetic waves dispersed by the dispersion part to direct to a side of the dielectric window, and a front surface of the dielectric window does not have irregularities.
Abstract: A display method is a display method performed by a display device that operates in conjunction with a mobile object, and includes: determining which one of first surrounding information, which is video showing a surrounding condition of the mobile object and is generated using two-dimensional information, and second surrounding information, which is video showing the surrounding condition of the mobile object and is generated using three-dimensional data, is to be displayed, based on a driving condition of the mobile object; and displaying the one of the first surrounding information and the second surrounding information that is determined to be displayed.
Abstract: Provided are a power conversion device and a system using the same, which can reduce loss of each semiconductor element in a power conversion circuit and enable high efficiency of a device controlled by the power conversion device. The power conversion device includes a direct current (DC) power source; and a full-bridge circuit having first upper and lower arms having an upper element and a lower element and second upper and lower arms having an upper element and a lower element, in which the first upper and lower arms and the second upper and lower arms are electrically connectable to a device, and ON resistances of the upper element of the first upper and lower arms and the lower element of the second upper and lower arms are smaller than ON resistances of the lower element of the first upper and lower arms and the upper element of the second upper and lower arms.
Abstract: The break-off spout of the present invention includes: a spout main body (110) having a break-off section (150) formed via a weakened section (121) such that an annular section (152) having a through-hole formed therein protrudes to the tip side; and a pair of left and right cover members (160) integrally formed with the spout main body (110) via hinge sections provided below the weakened section (121). The pair of left and right cover members (160) are formed in a shape such that, when the cover members are engaged with each other, the cover members cover a portion of the spout main body (110) above the hinge sections including the break-off section (150). An insertion port (164) through which deformation means that deforms the annular section (152) and blocks the through-hole can be inserted is provided in the cover members (160).
Abstract: Provided is an electrostatic capacitance detection device including: an electrode pair including a pair of electrodes, the electrode pair being arranged inside a compressor configured to compress refrigerant; a capacitor being connected in series to the electrode pair; an inverter having one of power lines connected to one end of series-connected electrode pair and capacitor, and is configured to drive the compressor, the power lines being used for driving the compressor; and a voltage detecting unit configured to measure a voltage between the pair of electrodes of the electrode pair.
Abstract: A three-dimensional data creation method for use in a vehicle including a sensor and a data receiver that transmits and receives three-dimensional data to and from an external device. The three-dimensional data creation method includes: creating second three-dimensional data based on information detected by the sensor and first three-dimensional data received by the data receiver; and transmitting, to the external device, third three-dimensional data that is part of the second three-dimensional data.
Abstract: There is provided an engine stopping device including a stopping solenoid, where an operating shaft, interlocked to a control rack of a fuel injection pump, is rotatably supported by an engine case in a pass-through manner. The control rack is forcibly movable to a stopping position by an action of the stopping solenoid on an operation arm provided for a projecting portion of the operating shaft in an integrally rotatable manner. An extending-retracting rod of the stopping solenoid and the operation arm are interlocked by fitting engagement between a pin provided for the extending-retracting rod and a cut-out portion of the operation arm. The cut-out portion is configured in a shape elongated along a direction perpendicular to a movement trajectory of the extending-retracting rod.
Abstract: A three-dimensional information processing method includes: obtaining, via a communication channel, map data that includes first three-dimensional position information; generating second three-dimensional position information from information detected by a sensor; judging whether one of the first three-dimensional position information and the second three-dimensional position information is abnormal by performing, on one of the first three-dimensional position information and the second three-dimensional position information, a process of judging whether an abnormality is present; determining a coping operation to cope with the abnormality when one of the first three-dimensional position information and the second three-dimensional position information is judged to be abnormal; and executing a control that is required to perform the coping operation.
Abstract: In a semiconductor laser according to an embodiment of the present disclosure, a ridge part has a structure in which a plurality of gain regions and a plurality of Q-switch regions are each disposed alternately with each of separation regions being interposed therebetween in an extending direction of the ridge part. The separation regions each have a separation groove that separates from each other, by a space, the gain region and the Q-switch region adjacent to each other. The separation groove has a bottom surface at a position, in a second semiconductor layer, higher than a part corresponding to a foot of each of both sides of the ridge part. The semiconductor laser includes an electrode provided over the bottom surface of each separation groove with an insulating layer being interposed therebetween.
Abstract: In a semiconductor laser according to an embodiment of the present disclosure, a ridge part has a structure in which a plurality of gain regions and a plurality of Q-switch regions are each disposed alternately with each of separation regions being interposed therebetween in an extending direction of the ridge part. The separation regions each have a separation groove that separates from each other, by a space, the gain region and the Q-switch region adjacent to each other. The separation groove has a bottom surface at a position, in a second semiconductor layer, higher than a part corresponding to a foot of each of both sides of the ridge part.
Abstract: Controllability of a linear motor or a compressor is improved. There is provided a linear motor system that includes: an armature having magnetic poles and winding wires; a mover having a permanent magnet; and a power conversion unit that outputs AC power to the winding wires, in which the mover and the armature are relatively movable, and the mover or the armature is connected to an elastic body. The linear motor system further includes: a position detection unit that detects and outputs the position of the mover with respect to the armature, a position estimation, or a current detection unit that outputs the value of current flowing through the winding wires; and a control unit that controls the output of the power conversion unit on the basis of the output of the position detection unit, the output of the position estimation unit, or the output of the current detection unit.
Abstract: A three-dimensional data creation method includes: creating first three-dimensional data from information detected by a sensor; receiving encoded three-dimensional data that is obtained by encoding second three-dimensional data; decoding the received encoded three-dimensional data to obtain the second three-dimensional data; and merging the first three-dimensional data with the second three-dimensional data to create third three-dimensional data.
Abstract: To provide a motor system that can control the position of a control object in multiple directions while suppressing the number of required switching elements. A motor system includes: a power conversion device including first, second, and third up-down arms each including two switching elements connected in series; a control object; and a first load including a magnetic pole tooth facing the control object, and a winding wound around the magnetic pole tooth. The motor system includes a second load including two magnetic pole teeth facing each other in a second direction with the control object therebetween, and a winding wound around one or both of the magnetic pole teeth. The power conversion device provides a force with respect to a first direction to the control object through an output to the first load, and provides a force with respect to the second direction to the control object through an output to the second load.
Abstract: A distance measurement apparatus including at least one measurement unit, in which the measurement unit includes: a voltage level converter that applies an arbitrary bias to a voltage obtained on the basis of an output from a light receiver to offset a level of the voltage; an amplifier that amplifies a voltage output from the voltage level converter; and a measurement section that measures a timing at which an output from the amplifier reaches a predetermined threshold.
January 31, 2017
May 2, 2019
TAKAHIRO KOYAMA, TOYOHARU OOHATA, TOMOKI ONO
Abstract: A ranging device provided with a light projecting unit for projecting a reference pulse set row including a main pulse and at least one sub pulse, a light receiving unit for receiving a reflected pulse set row obtained by reflection of the reference pulse set row by an object to be measured, an identifying unit for identifying the reflected pulse set row corresponding to the reference pulse set row, and a calculating unit for calculating a distance to the object to be measured on the basis of a delay time difference between the reference pulse set row and the reflected pulse set row corresponding to the reference pulse set row, in which the light projecting unit is configured to project a plurality of reference pulse set rows having different pulse intervals.
October 26, 2016
January 31, 2019
TAKAHIRO KOYAMA, TOYOHARU OOHATA, TOMOKI ONO
Abstract: The invention is provided with a metal base plate including a first surface and a second surface and a cooling case including a bottom wall and a side wall formed around the bottom wall, in which one end of the side wall being joined to a second surface side of the metal base plate, and a coolant can be circulated in a space enclosed by the metal base plate, the bottom wall, and the side wall, in which the cooling case has an inlet portion and an outlet portion for the coolant which are connected to either the bottom wall or the side wall and disposed along a peripheral edge of the second surface of the metal base plate, and includes a first flange disposed at an inlet opening side of the inlet portion and a second flange disposed at an outlet opening side of the outlet portion.
Abstract: Provided is a correction device including: a photon number counting unit that counts a photon number on the basis of an output signal output from a light receiving unit; a correction value acquiring unit that acquires a correction value corresponding to the photon number; and a correction unit that performs correction based on the correction value.
June 7, 2016
September 13, 2018
TOYOHARU OOHATA, TAKAHIRO KOYAMA, TOMOKI ONO