Nidec Corporation

Shimadzu Corporation

Sanyu Rec Co., Ltd.

Casio Computer Co., Ltd.

Japan Rec Co., Ltd.

Nidec Coporation

Yuki Ishikawa

Takayuki Migita

Yasuo Yamaguchi

Keisuke Nakata

Shuhei Nakamatsu

Hitoshi Kuroyanagi

Keisuke Fukunaga

Yusuke Tagawa

Hironobu Kumagai

Naohiro Wada

Takanobu Oyama

Atsushi Okuno

Noriko Fujita

Noritaka Oyama

Hiroaki Kozawa

Daisuke Ogasawara

Jun Murakami

Koichiro Nagai

Tsunekazu Hashimoto

Kazuyuki Yamamoto

Takeshi Yoshida

Hiroyuki Abe

Hisashi Fujihara

Toshinobu Yanagisawa

Keigo Nakamura

Kentaro Morimoto

Yuji Katsuyama

Yohei Miyata

Kouhei Oba

Sota Doi

Akiyoshi Otani

Masami Sugino

Hayato Nakama

Hiroki Akaishi

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.

Waveform processing device for chromatogram and waveform processing method for chromatogram

A motor unit includes a motor including a rotor to rotate about a motor axis, and a stator radially outside of the rotor, a reduction gear connected to the motor, a differential connected to the motor through the reduction gear, a housing including a housing space to house the motor, the reduction gear, and the differential, and an oil passage to lead an oil to the motor. The oil passage includes an electric pump and a cooler. The electric pump and the cooler are fixed to the housing. The electric pump includes a portion located vertically below the cooler.

Motor unit with oil colling passage

A drive device includes a motor and an inverter. A motor axis is parallel to an output axis. The inverter is located in a second direction orthogonal to a first direction with respect to the motor axis and extends in a third direction orthogonal to the first and second directions. When viewed from the first direction, a virtual straight line passing through the axes extends in the third direction. An inverter housing portion overlaps the axes when viewed from the second direction, and has a boundary wall on the virtual straight line side in the second direction. In the second direction, a distance between the boundary wall and the output axis is smaller than a distance between the boundary wall and the motor axis. A motor side connection portion has a portion closer to the side opposite to the output axis than the motor axis in the third direction.

Drive device

In a motor, a stator includes: a stator core having slots arranged in a circumferential direction; and conductor connection bodies with conductors connected in series and inserted into the slots. A conductor connection body includes: a first portion wave-wound toward one side in the circumferential direction from a first end to a second end; a second portion wave-wound toward the one side in the circumferential direction from a third end to a fourth end; and a folded portion connecting the first and second portions. The first and third ends protrude in an axial direction from different slots in the circumferential direction, and the second and fourth ends protrude in the axial direction from different slots in the circumferential direction. The conductors include a folded conductor that forms a folded portion connecting the second end of the first portion and the fourth end of the second portion.

Motor

In an electric power unit which accommodates at least an electric motor in a housing, polygonal rib regions in which polygonal ribs are respectively formed are provided on at least two surfaces of an outer peripheral surface of the housing, and the polygonal rib regions are connected by a circumferential rib. Here, a first axial rib and a second axial rib extending parallel to an axial direction are formed on the outer peripheral surface of the housing, and the polygonal rib region is provided in a portion sandwiched between the first axial rib and the second axial rib. Further, the circumferential rib is formed over the entire part of the polygonal rib region in a circumferential direction. Note that the polygonal rib is a honeycomb rib.

Electric power unit

In a drive device, a housing includes a motor accommodation portion for accommodating a motor and an inverter accommodation portion for accommodating an inverter unit, the motor accommodation portion includes a tubular portion of a tubular shape extending in a first direction, the inverter accommodation portion includes a peripheral wall portion surrounding the inverter accommodation portion when viewed from a second direction and a plate portion extending from the tubular portion along one side in a direction perpendicular to the first direction and intersecting the second direction and continuous with the peripheral wall portion, and at least one of the pump and the oil cooler is fixed to the plate portion.

Drive device and vehicle

A model estimator () estimates a model function of an analyzing system () based on target observation data and reference observation data. For this estimation, the amount of variation between the model of the target system and that of a reference model is estimated from the target observation data and reference observation data. The model function of the target model is estimated after the observation data are corrected based on the estimated amount of variation. A parameter determiner () calculates an acquisition function based on the mean and covariance of the model function, and determines a parameter value for the next observation, using the acquisition function. A data acquirer () sets the parameter value in the analyzing system () and acquires a corresponding observed value. A loop process with the feedback of the observation data is repeated to determine an optimal parameter value. In the case of a parameter search using a multi-task Bayesian optimization method, the present technique improves the efficiency of the parameter search even if the correlation between the target observation data and reference observation data is low.

Parameter-searching method, parameter-searching device, and program for parameter search

A motor includes a rotor, a stator, and first and second bus bar disposed on one side in an axial direction of the stator. The stator includes a winding portion including conductor connection bodies in which conductors are connected in series and a stator core having slots through which the conductor connection body passes. The winding portion includes a coil end located on one side in the axial direction of the stator core. The conductor connection body includes first and second ends located at an outermost circumference in the radial direction of the coil end. The first bus bar is connected to the first end. The second bus bar is connected to the second end. The first bus bar is located on one side in the axial direction of the coil end. The second bus bar is located on the radial outside of the coil end.

Motor and stator bus bar

A motor includes a rotor, a stator, and a bus bar unit disposed on one side in an axial direction of the stator. The stator includes conductor connection bodies and a segment coil. Each connection body includes first and second ends in the axial direction. The bus bar unit includes a neutral point bus bar connected to the first end and phase bus bars connected to the second end. The neutral point bus bar extends along a circumferential direction. The phase bus bar includes a main body extending along the circumferential direction and at least partially overlapping the neutral point bus bar and a connection portion extending from the main body to one side in the axial direction. The first end passes through one side in the axial direction of the neutral point bus bar and is connected to the connection portion.

A mass spectrometer according to one aspect of the present invention includes an ion source (), a mass separator (), and a detector (), the mass spectrometer further including: a parameter optimization unit () 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 (), a display processor () 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 (), and to sequentially update the sensitivity model, and a file creation unit () configured to a user to designate a position on the displayed graph, and to create a method file containing a measurement condition used for sample measurement, based on a combination of values of parameters corresponding to the designated position.

Mass spectrometer and program for mass spectrometer

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.

Waveform processing assistance device and waveform processing assistance method

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 (), a measurement controller () 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 () that sequentially finds an optimum value for each parameter based on a result of the measurement executed under control of the measurement controller (). At least one parameter whose physical quantity is temperature is optimized prior to all of the parameters whose physical quantities are other than temperature.

Mass spectrometer and mass spectrometry method

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.

A housing of a drive device includes a refrigerant flow path through which a refrigerant flows. The refrigerant flow path includes a first flow path, a second flow path, a third flow path, and a fourth flow path. The refrigerant to be sent from a pump flows through the first flow path. The refrigerant to be supplied to the motor portion flows in the second flow path. The third flow path supplies a part of the refrigerant flowing through the second flow path to the outer surface of a stator. The fourth flow path supplies the other part of the refrigerant flowing through the second flow path to a hollow portion of a shaft. A minimum flow-path cross-sectional area in the fourth flow path is smaller than a minimum flow-path cross-sectional area in the third flow path.

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.

Growing community of inventors

Kyoto, Japan

Yuki Ishikawa