公开(公告)号：US20230304975A1

公开(公告)日：2023-09-28

申请号：US18023346

申请日：2021-03-03

Applicant: SHIMADZU CORPORATION

Inventor： Yusuke TAMAI

IPC: G01N30/86 ,  G06N7/01

CPC classification number: G01N30/8637 ,  G01N30/8675 ,  G01N30/8693 ,  G06N7/01

Abstract: An acquirer that acquires, based on measurement data acquired over time using an analysis device, measurement waveform data, the measurement data representing a change in domain direction of the measurement data, and an estimator that acquires estimation waveform data that is what noise data is at least partially removed from the measurement waveform data, are included. The estimator acquires the estimation waveform data as data such that the noise data included in the measurement waveform data has a correlation in the domain direction. Thus, a peak shape can be correctly estimated based on measurement waveform data to which noise is added.

公开(公告)号：US20220382834A1

公开(公告)日：2022-12-01

申请号：US17729906

申请日：2022-04-26

Applicant: SHIMADZU CORPORATION

Inventor： Yuichiro FUJITA ,  Akira NODA ,  Yusuke TAMAI ,  Yoshihiro YAMADA

IPC: G06F17/18 ,  G01N21/27

Abstract: An analysis method for analyzing a sample includes a first step of acquiring measurement data including a first signal based on the sample and a second signal based on noise added to the first signal as a result of analysis of the sample, a second step of assuming a shape representing the first signal and a shape representing the second signal and modeling the measurement data using Bayesian inference, and a third step of estimating a probability distribution of characteristics of the sample based on the modeled measurement data.

公开(公告)号：US20230417714A1

公开(公告)日：2023-12-28

申请号：US17926356

申请日：2021-03-04

Applicant: Shimadzu Corporation

Inventor： Yusuke TAMAI

IPC: G01N30/86 ,  G01N30/72

CPC classification number: G01N30/8637 ,  G01N30/72

Abstract: A data processing device performs a data process on a measured waveform obtained by a prescribed measurement of a sample. The data processing device includes an estimator, a calculator, and a display processor. The estimator estimates a predictive distribution of each peak shape for a corresponding one of a plurality of peak waveforms using a prescribed peak shape model, the plurality of peak waveforms being included in the measured waveform and being close to each other. The calculator calculates a predictive distribution of a quantitative indicator for each of the plurality of peak waveforms based on the predictive distribution of the peak shape estimated by the estimator. The display processor is operable to display the predictive distribution of the quantitative indicator calculated by the calculator.

公开(公告)号：US20200065699A1

公开(公告)日：2020-02-27

申请号：US16462611

申请日：2017-01-19

Applicant: SHIMADZU CORPORATION

Inventor： Yusuke TAMAI ,  Shigeki KAJIHARA ,  Shin FUJITA ,  Ryota AISU

IPC: G06N20/00

Abstract: This analytical data analysis method uses machine learning of analysis result data (31) measured by an analyzer (1), and includes generating simulated data (32) in which a data variation has been added to the analysis result data (31) within a range that does not affect identification, performing the machine learning using the generated simulated data (32), and performing discrimination using a discrimination criterion (23b) obtained through the machine learning.

公开(公告)号：US20240219204A1

公开(公告)日：2024-07-04

申请号：US18396521

申请日：2023-12-26

Applicant: SHIMADZU CORPORATION

Inventor： Yusuke TAMAI ,  Akira NODA

IPC: G01D3/032

CPC classification number: G01D3/032 ,  G01N30/86

Abstract: A measurement data analysis device analyzes measurement data of a sample obtained in an analyzer, and includes a noise variation estimator that estimates a noise variation coefficient, the noise variation coefficient being applied to a noise included in the measurement data by a frequency filter included in the analyzer, an acquirer that acquires the measurement data to which the frequency filter has been applied in the analyzer, and a calculator that estimates, with use of the noise variation coefficient, a noise intensity included in the measurement data obtained before the frequency filter is applied, and analyzes, based on the estimated noise intensity, the measurement data.

公开(公告)号：US20220220969A1

公开(公告)日：2022-07-14

申请号：US17440975

申请日：2019-11-20

Applicant: SHIMADZU CORPORATION

Inventor： Yusuke TAMAI

IPC: F04D27/00 ,  F04D19/04

Abstract: Provided is a pump monitoring device diagnosing an accumulation of a reaction product in a vacuum pump. The pump monitoring device includes an acquisition unit configured to acquire data representing pump state of the vacuum pump, a statistical value calculation unit configured to calculate a statistical value representing a width of data distribution per predetermined time period, based on the data acquired by the acquisition unit, and a diagnosis unit configured to output diagnostic information of the vacuum pump about an amount of the accumulation of the reaction product, based on the statistical value.