Yuki Ishikawa 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: An object is to provide a semiconductor device which suppresses poor bonding between a metal pattern and an electrode terminal due to insufficient temperature rise at the time of bonding the metal pattern and the electrode terminal. The electrode terminal is branched into a plurality of branch portions in a width direction on one end side of an extending direction thereof, of the plurality of branch portions, a first branch portion and a second branch portion are bonded on the metal pattern via a bonding material, respectively, the first branch portion has a wider width than that of the second branch portion, and the bonding material between the second branch portion and the metal pattern is thinner than the bonding material between the first branch portion and the metal pattern.
Abstract: A mass spectrometer according to one aspect of the present invention includes an ion source (31), a mass separator (32), and a detector (33), the mass spectrometer further including: a parameter optimization unit (531, 532, 533) configured to optimize a parameter value using a Bayesian optimization method based on a result obtained by making measurements while changing values of device parameters including a plurality of parameters that affects ionization efficiency in the ion source (31), a display processor (536) configured to display a sensitivity model which is a posterior distribution indicating a relationship between a plurality of parameters in all or some of the device parameters and signal strength estimated during the optimization of the device parameters, expressing as a graph like a heat map or an array of a plurality of the graphs on a display unit (7), and to sequentially update the sensitivity model, and a file creation unit (535) configured to a user to designate a position on the displayed gr
Abstract: Provided is an interlayer film for laminated glass capable of effectively enhancing the sound insulating property at 6300 Hz while effectively preventing deterioration in sound insulating property at 3150 Hz in laminated glass. An interlayer film for laminated glass according to the present invention has a one-layer structure or a two or more-layer structure and includes a resin layer containing a resin and a plasticizer. The interlayer film has a resonance frequency X of 550 Hz or more and 740 Hz or less, a loss factor Y in a secondary mode of 0.35 or more, and satisfies a formula: Y>0.0008X?0.142 in a measurement of resonance frequency in a secondary mode in a damping test for laminated glass according to a central exciting method of laminated glass, when the laminated glass is obtained by arranging the interlayer film between two glass plates of 25 mm wide, 300 mm long and 2 mm thick.
Abstract: An image forming apparatus includes a print engine, a sheet transportation unit, an optical sensor, and an image processing unit. The print engine is configured to physically print an image to be printed on a print sheet. The sheet transportation unit is configured to transport the print sheet along a predetermined transportation path. The optical sensor is arranged so as to face the transportation path, and configured to detect a color of a test chart on a colored print sheet transported along the transportation path. The image processing unit is configured to perform color correction of the image to be printed on the colored print sheet, on the basis of the detected color of the test chart on the colored print sheet so as to restrain color change of the image due to a surface color of the colored print sheet.
Abstract: A mass spectrometer includes an ionization unit, a mass separation unit, a detection unit, a first measurement control unit configured to control the ionization unit to repeatedly execute a first measurement on a target sample while changing values of a plurality of parameters defined as device parameters, a second measurement control unit configured to control the ionization unit to set a value of each of the plurality of parameters to a predetermined reference value and execute a second measurement on the target sample at two or more time points before, after, or in a middle of repetition of the first measurement, a correction processing unit configured to correct results of the first measurements using results of the second measurements, and a device parameter-related information acquisition unit configured to determine the plurality of parameters using the corrected measurement results or acquire reference information for determining the plurality of parameters.
Abstract: One aspect of a motor of the present disclosure may include a rotor having a motor shaft disposed along a central axis extending in one direction, a stator facing the rotor via a gap in a radial direction, and a housing having an accommodating portion configured to accommodate the rotor and the stator, and to enable oil to be stored therein, wherein the housing comprises a lower wall portion facing a vertical-directional lower region in the inside of the accommodating portion, the lower wall portion comprises a cooling flow passage formed therein, and refrigerant flows in the cooling flow passage, and at least a portion of the cooling flow passage overlaps the vertical-directional lower region in the inside of the accommodating portion when viewed along a vertical direction.
Abstract: A drive device includes a motor, a housing, an oil passage in the housing, an oil pump in which a portion of the oil passage is provided, and a strainer inside the housing and in which a portion of the oil passage is provided. The oil passage includes an oil sump in which oil is accumulated and a suction path connecting the oil sump and the oil pump. A central axis of the oil pump extends in a direction intersecting the vertical direction. The strainer is in the suction path. The strainer includes a suction port to suction oil from the oil sump, a discharge port to discharge oil toward the oil pump, and a filter. The suction port opens downward in the vertical direction. The discharge port opens in a direction intersecting the vertical direction toward the oil pump.
Abstract: Provided is A metal paste for joints, containing: metal particles; and monovalent carboxylic acid having 1 to 9 carbon atoms, in which the metal particles include sub-micro copper particles having a volume average particle diameter of 0.12 ?m to 0.8 ?m, and a content of the monovalent carboxylic acid having 1 to 9 carbon atoms is 0.015 part by mass to 0.2 part by mass with respect to 100 parts by mass of the metal particles.
Abstract: A waveform processing assistance device includes an acquirer that acquires a plurality of waveform data obtained by an analysis of a sample, a selector that selects reference data among the waveform data, an extractor that extracts correct answer peaks and correct answer data from the reference data a determiner that determines each processing section including a correct answer peak and each parameter initial value, a waveform processor that performs waveform processing in each determined processing section based on each parameter initial value, an adjuster that generates a parameter adjustment value at which a waveform processing result obtained in each processing section matches or approximates corresponding correct answer data, and a program creator that creates a waveform processing execution program that includes an instruction to execute waveform processing using the parameter adjustment value in each processing section.
Abstract: A mass spectrometer according to an aspect of the present invention includes, to optimize N (where N is an integer of 2 or more) parameters that affect ionization efficiency in an ion source (31), a measurement controller (41) that causes respective units to repeatedly execute measurement on a sample containing a target component while changing values of the N parameters or a value set of M (where M is an integer smaller than N) parameters, in a plurality of stages, and a parameter determiner (53) that sequentially finds an optimum value for each parameter based on a result of the measurement executed under control of the measurement controller (41). At least one parameter whose physical quantity is temperature is optimized prior to all of the parameters whose physical quantities are other than temperature.
Abstract: A motor assembly includes a motor including a rotor that rotates about a motor axis, a transmission that transmits motive power of the motor to an axle, a housing that accommodates the motor and the transmission, and an oil pump fixed to the housing. The housing includes a tubular motor housing extending along the motor axis, and the motor housing includes a rib on a side surface facing the oil pump. The rib protrudes to a radially outer side from the side surface, and has a plate shape extending along the motor axis.
October 17, 2019
Date of Patent:
June 21, 2022
Daisuke Ogasawara, Kazuyuki Yamamoto, Jun Murakami, Yuki Ishikawa
Abstract: A gear portion of a drive device is connected to a motor shaft. An oil passage through which oil to cool a motor flows includes a first oil passage, a second oil passage, a third oil passage, and a fourth oil passage. The first oil passage connects a gear accommodation portion and a pump accommodation portion. The second oil passage connects the pump accommodation portion and an oil cooler. The third oil passage connects the oil cooler and the fourth oil passage. The fourth oil passage connects the third oil passage and a motor accommodation portion. Each of the first oil passage, the second oil passage, and the third oil passage is in a first housing portion. The fourth oil passage is in a third housing portion.
Abstract: An inner rotor motor includes a rotor rotatable about a central axis, a stator that includes a stator core that surrounds the rotor from radially outside, and a motor housing that holds the stator. The motor housing includes a tubular portion and a bottom wall. The bottom wall includes a through hole. An inner circumferential surface of the tubular portion includes a first portion that is located at a circumferential position that coincides with the through hole and includes a surface that can come into contact with an outer circumferential surface of the stator core, and a second portion that is located between the first portion and the bottom wall and includes a surface located radially outside relative to the first portion.
Abstract: A drive device includes a motor, an inverter to control current supplied to the motor, plate-shaped busbars that electrically connect the motor with the inverter, and a housing that accommodates the motor, the inverter, and the busbars. The housing includes a partition wall that partitions the inside of the housing into a motor housing and an inverter housing. The partition wall is provided with a through hole. Each busbar includes a motor connection terminal, an inverter connection terminal, a first portion extending from the motor connection terminal toward the through hole, and a second portion extending from the first portion to the inverter connection terminal through the through hole. At least two busbars overlap each other in a plate thickness direction inside the through hole.
Abstract: A housing of a drive device includes a tubular portion, a side plate portion, a plate portion, and a peripheral wall portion. The tubular portion extends in a first direction and accommodates a motor. The side plate portion has a plate shape intersecting the first direction, and is at one end portion of the tubular portion in the first direction. The plate portion expands from the tubular portion along one of the first direction and a second direction perpendicular to the first direction. The peripheral wall portion surrounds an inverter accommodation portion that accommodates inverter when viewed from a third direction perpendicular to the first direction and the second direction, and is connected to the plate portion. Each of a pump and an oil cooler is at any of one end portion of the peripheral wall portion in the second direction, another end portion of the plate portion in the third direction, and another end portion of the side plate portion in the first direction.
Abstract: A drive device includes a first catch tank above a first gear and including a first bent portion bent between the first gear and a second gear, and a second catch tank below the first catch tank and including a second bent portion that is bent downward. A space above the second bent portion communicates with a space above the first bent portion. A third catch tank is above the second gear, and includes a third bent portion that is bent toward between the first gear and the second gear. A space above the third bent portion communicates with the space above the first bent portion. A fourth catch tank is in front of the second gear and above the third gear, and includes a fourth bent portion that is bent downward.
Abstract: A drive apparatus includes a motor; a reduction gear connected to the motor; a differential connected to the reduction gear, for rotating an axle about a differential axis; a housing including a gear housing portion housing the reduction gear and the differential; and an oil housed in the gear housing portion. The differential includes a gear for rotating about the differential axis. An end portion of the gear is lower than the reduction gear, and is configured to soak in the oil. The housing includes an oil drain hole and an oil feed hole for joining an interior of the housing and a space outside of the housing, a first stopper member removably in the oil drain hole, and a second stopper member removably in the oil feed hole. Each of the oil drain hole and the oil feed hole is in a portion of the gear housing portion.
Abstract: A waveform processing assistance device includes an acquirer that acquires a correspondence relationship between a plurality of values of a waveform processing parameter and a plurality of results of waveform processing as a plurality of peak separation information pieces in regard to a plurality of peaks that are separated from one or a plurality of waveform data pieces based on the plurality of values of the waveform processing parameter, a determiner that determines robustness of each value of the waveform processing parameter based on a plurality of peak separation information pieces acquired by the acquirer, and a display controller that causes the display to display a plurality of peak separation information pieces acquired by the acquirer and a robustness information piece representing robustness of each value of the waveform processing parameter that is calculated by the determiner.
Abstract: According to one embodiment, a semiconductor device includes a first system including a first operation circuit, and a second system configured to control a debug operation in the first system. The semiconductor device includes a normal mode and a debug mode. In the debug mode of the semiconductor device, in a case where a first key received from an outside corresponds to a second key stored in the second system, the second system transmits a debug command to the first operation circuit.
Abstract: A sample chromatogram produced by measurement of a mobile phase into which a sample has been injected is acquired by a sample chromatogram acquirer. A background chromatogram produced by measurement of a mobile phase into which a sample is not injected or a mobile phase into which a control sample is injected is acquired by a background chromatogram acquirer. Alignment of a sample chromatogram and a background chromatogram is performed by an alignment processor by causing of baselines of the acquired sample chromatogram and the acquired background chromatogram to coincide with each other. Subtraction processing of subtracting a background chromatogram from a sample chromatogram after alignment is executed by a subtraction processor.