Patents by Inventor Kohei Maruchi
Kohei Maruchi 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).
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Patent number: 11921162Abstract: According to one embodiment, the information processing device includes: a first state estimator configured to estimate a state of a target rechargeable battery based on: first data including a charge amount and voltage value of a rechargeable battery; information including a state of the rechargeable battery; and second data including a charge amount and voltage value of the rechargeable battery.Type: GrantFiled: September 8, 2021Date of Patent: March 5, 2024Assignee: KABUSHIKI KAISHA TOSHIBAInventors: Hisaaki Hatano, Takahiro Yamamoto, Kohei Maruchi, Kenichi Fujiwara, Masatake Sakuma
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Publication number: 20230417839Abstract: According to one embodiment, an information processing apparatus, includes: processing circuitry configured to calculate, based on measured data of a voltage value and a charge amount of a rechargeable battery which is controlled for charge/discharge according to a charge/discharge command value, first information indicating a change of the voltage value with respect to the charge amount; and acquire second information indicating a reference change of a voltage value with respect to a charge amount in accordance with a range of the voltage values in the measured data and estimate a state of the rechargeable battery based on the first information and the second information.Type: ApplicationFiled: September 8, 2023Publication date: December 28, 2023Applicants: KABUSHIKI KAISHA TOSHIBA, TOSHIBA ENERGY SYSTEMS & SOLUTIONS CORPORATIONInventors: Takahiro YAMAMOTO, Kohei MARUCHI, Hisaaki HATANO, Yasuhiro OGURA, Koji TOBA, Kenji MITSUMOTO
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Publication number: 20220260646Abstract: An information processing apparatus includes: an SoH calculator to calculate an SoH (State of Health) for each of a plurality battery units on the basis of measurement data related to an electric power applied to each of the plurality of battery units in a rechargeable battery; a maximum/minimum voltage SoH calculator to calculate a maximum/minimum voltage SoH which is an SoH based on a maximum voltage and a minimum voltage in voltages applied to a plurality of cells or a plurality of battery subunits in the battery unit for each of the plurality of battery units on the basis of the measurement data; and an SoH ratio calculator to calculate an SoH ratio which is a ratio of the maximum/minimum voltage SoH to the SoH for each of the plurality of battery units on the basis of the calculated SoH and the calculated maximum/minimum voltage SoH.Type: ApplicationFiled: March 14, 2022Publication date: August 18, 2022Applicants: KABUSHIKI KAISHA TOSHIBA, TOSHIBA ENERGY SYSTEMS & SOLUTIONS CORPORATIONInventors: Takahiro YAMAMOTO, Hisaaki HATANO, Kohei MARUCHI, Kenji MITSUMOTO
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Patent number: 11379493Abstract: An apparatus as an aspect of the present invention is a factor analysis apparatus that analyzes a relationship between a target event that is a target of factor analysis and an assumed factor of the target event, and includes a similarity calculator, a first influence calculator, and a second influence calculator. The similarity calculator calculates a degree of similarity between a data item included in provided time-series data and the assumed factor. The first influence calculator calculates a first degree of influence indicating a degree of influence of the data item on the target event on the basis of time-series data of the data item and time-series data of the target event. The second influence calculator calculates a second degree of influence indicating a degree of influence of the assumed factor on the target event on the basis of the degree of similarity and the first degree of influence.Type: GrantFiled: February 20, 2018Date of Patent: July 5, 2022Assignee: KABUSHIKI KAISHA TOSHIBAInventors: Sayaka Akiyama, Kohei Maruchi, Masatake Sakuma
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Publication number: 20210405120Abstract: According to one embodiment, the information processing device includes: a first state estimator configured to estimate a state of a target rechargeable battery based on: first data includes a charge amount and voltage value of a rechargeable battery; information including a state of the rechargeable battery; and second data including a charge amount and voltage value of the rechargeable battery.Type: ApplicationFiled: September 8, 2021Publication date: December 30, 2021Applicant: KABUSHIKI KAISHA TOSHIBAInventors: Hisaaki HATANO, Takahiro YAMAMOTO, Kohei MARUCHI, Kenichi FUJIWARA, Masatake SAKUMA
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Publication number: 20210178927Abstract: There is provided a rechargeable battery evaluation device including: a charging controller configured to switch charging current of a rechargeable battery being charged with first current to second current; and a first state estimator configured to estimate a state of the rechargeable battery based on a feature of change in at least one of a voltage and a charging amount of the rechargeable battery due to switching from the charging current to the second current.Type: ApplicationFiled: February 26, 2021Publication date: June 17, 2021Applicant: KABUSHIKI KAISHA TOSHIBAInventors: Takahiro YAMAMOTO, Kaoru KOIWA, Hisaaki HATANO, Kenichi FUJIWARA, Kohei MARUCHI, Koji TAKAZAWA, Yoshiyuki ISOZAKI, Shun EGUSA, Tomokazu MORITA
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Publication number: 20200311576Abstract: A time series data analysis method, includes: generating a plurality of first feature vectors including feature amounts of a plurality of feature waveforms, based on distances from a plurality of first time series data sequences to the plurality of feature waveforms, the first time series data sequences belonging to a first class; generating a plurality of second feature vectors including feature amounts of the plurality of feature waveforms, based on distances from a plurality of second time series data sequences to the plurality of feature waveforms, the plurality of second time series data sequences belonging to a second class; and updating the plurality of feature waveforms, based on the plurality of first feature vectors, the plurality of second feature vectors, a performance indicator parameter related to a performance indicator for a classification model and a model parameter including weights on the plurality of feature waveforms.Type: ApplicationFiled: March 11, 2020Publication date: October 1, 2020Applicant: KABUSHIKI KAISHA TOSHIBAInventors: Akihiro YAMAGUCHI, Shigeru MAYA, Kohei MARUCHI, Tatsuya INAGI
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Publication number: 20190050460Abstract: An apparatus as an aspect of the present invention is a factor analysis apparatus that analyzes a relationship between a target event that is a target of factor analysis and an assumed factor of the target event, and includes a similarity calculator, a first influence calculator, and a second influence calculator. The similarity calculator calculates a degree of similarity between a data item included in provided time-series data and the assumed factor. The first influence calculator calculates a first degree of influence indicating a degree of influence of the data item on the target event on the basis of time-series data of the data item and time-series data of the target event. The second influence calculator calculates a second degree of influence indicating a degree of influence of the assumed factor on the target event on the basis of the degree of similarity and the first degree of influence.Type: ApplicationFiled: February 20, 2018Publication date: February 14, 2019Applicant: KABUSHIKI KAISHA TOSHIBAInventors: Sayaka AKIYAMA, Kohei Maruchi, Masatake Sakuma
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Publication number: 20190012553Abstract: According to one embodiment, a diagnostic device includes an anomaly diagnoser and a graph creator. The anomaly diagnoser performs anomaly diagnosis based on first measured data. The graph creator determines parameter information for graph production in accordance with a result of the anomaly diagnosis and creates a first graph from the first measured data based on the parameter information.Type: ApplicationFiled: March 5, 2018Publication date: January 10, 2019Applicant: Kabushiki Kaisha ToshibaInventors: Kohei MARUCHI, Topon PAUL, Genta KIKUCHI, Sayaka AKIYAMA
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Publication number: 20160154903Abstract: According to this embodiment, an information processor comprises an electrical connection relation generating unit which generates an electrical connection relation of a plurality of components by adjusting the electrical connection relation of the components determined by the number of connections which each component can make with other components and a kind of the components of each hierarchy, based on the number of the components of a predetermined kind that can be arranged in a given space and an electrical permissible amount of the component in a top layer of the hierarchy. The information processor comprises a spatial arrangement determining unit which determines spatial arrangement of the components of the predetermined kind, based on the electrical connection relation generated by the electrical connection relation generating unit and rules of the spatial arrangement of the components.Type: ApplicationFiled: January 29, 2016Publication date: June 2, 2016Applicant: KABUSHIKI KAISHA TOSHIBAInventors: Gaku ISHII, Kohei MARUCHI, Mikito IWAMASA
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Publication number: 20150269292Abstract: An insolation information generating device has a mesh generator to generate meshes by projecting a solar trajectory on a celestial sphere onto a plurality of mesh positions on a two-dimensional plane, a solar position calculator to calculate a solar position, a feature road shape storage to store three-dimensional information on feature and road shapes, a feature road shape acquisition module to acquire three-dimensional information of a feature and a road located around each of a plurality of regions of interest, an insolation information calculator to determine whether sunlight from each solar position calculated by the solar position calculator is blocked by a feature acquired by the feature road shape acquisition module to calculate at least either one of a sunny ratio and a shady ratio, and an insolation information storage to store each mesh position and at least either one of the corresponding sunny ratio and shady ratio.Type: ApplicationFiled: March 16, 2015Publication date: September 24, 2015Applicant: KABUSHIKI KAISHA TOSHIBAInventors: Hiromasa SHIN, Kohei Maruchi, Yusuke Endoh, Yoshiaki Hasegawa
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Publication number: 20150198739Abstract: An insolation calculating device has a 3D model acquisition module to acquire a 3D model of an area around a target location to calculate insolation, a routing information acquisition module to acquire routing information about the area around the location, a main routing information extractor to acquire main routing information including a plurality of representative points from the routing information acquired by the routing information acquisition module, a sky diagram generator to generate a sky diagram at each of the representative points, the sky diagram being generated as two-dimensional image data corresponding to a shot image of the whole sky, a representative point insolation calculator to calculate representative point insolation showing insolation at each of the representative points, and a route insolation calculator to calculate insolation of each route connecting two adjacent representative points in the representative points.Type: ApplicationFiled: January 13, 2015Publication date: July 16, 2015Applicant: KABUSHIKI KAISHA TOSHIBAInventors: Yusuke ENDOH, Hiromasa SHIN, Mikito IWAMASA, Kohei MARUCHI, Masahiro SAKAI
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Publication number: 20090172643Abstract: A program verification apparatus includes: a program executing unit executing a program; a variable monitoring unit monitoring a plurality of variables in the program to obtain monitor values of the variables; a target variable determiner determining one or more target variables out of the variables; a constraint condition storage storing a first constraint condition that defines a constraint to be satisfied for each of the target variables and a second constraint condition that defines a constraint to be satisfied among the target variables; a state acquiring unit sequentially acquiring target program state each of which is a combination of monitor values of the target variables at same time respectively; a state generating unit generating an unreached target program state which has not been acquired yet and satisfies the first and second constraint conditions; and a state setting unit setting the unreached target program state to the program.Type: ApplicationFiled: December 23, 2008Publication date: July 2, 2009Applicant: KABUSHIKI KAISHA TOSHIBAInventors: Kohei Maruchi, Yoshio Kataoka, Masahiro Sakai
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Patent number: 7477477Abstract: There is provided with command execution method, including; detecting a use situation of a non-volatile memory; selecting, when the use situation is low, the command which enables the disk head to be located at a start position of writing or reading most rapidly from among the write commands and the read commands assuming that the disk head performs the fast seek for the write command and the slow seek for the read command; selecting, when the use situation of the non-volatile memory is high, the command which enables the disk head to be located at the start position of writing or reading most rapidly from among the write commands and the read commands assuming that the disk head performs the slow seek.Type: GrantFiled: September 20, 2007Date of Patent: January 13, 2009Assignee: Kabushiki Kaisha ToshibaInventors: Kohei Maruchi, Shinji Takakura, Mitsunobu Yoshida, Toshikatsu Akiba, Hiroaki Nakamura
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Publication number: 20080291568Abstract: A magnetic disk apparatus includes: a driving unit; a position error feedback control system; and a velocity control system. The driving unit is configured to move a magnetic head operative for magnetic recording/reproduction of information on a magnetic disk. The position error feedback control system is configured to perform feedback control of the driving unit based on difference between target track position and detected position of the magnetic head. The velocity control system is configured to vary a target velocity curve based on position of the magnetic head before motion, the target track position of the magnetic head, and position of a data sector to be subjected to recording/reproduction, for using a control mathematical model of the driving unit to control the driving unit so that velocity of the driving unit follows the target velocity curve.Type: ApplicationFiled: February 4, 2008Publication date: November 27, 2008Applicant: KABUSHIKI KAISHA TOSHIBAInventors: Shinji Takakura, Kohei Maruchi, Mitsunobu Yoshida
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Publication number: 20080144209Abstract: There is provided with command execution method, including; detecting a use situation of a non-volatile memory; selecting, when the use situation is low, the command which enables the disk head to be located at a start position of writing or reading most rapidly from among the write commands and the read commands assuming that the disk head performs the fast seek for the write command and the slow seek for the read command; selecting, when the use situation of the non-volatile memory is high, the command which enables the disk head to be located at the start position of writing or reading most rapidly from among the write commands and the read commands assuming that the disk head performs the slow seek.Type: ApplicationFiled: September 20, 2007Publication date: June 19, 2008Applicant: KABUSHIKI KAISHA TOSHIBAInventors: Kohei Maruchi, Shinji Takakura, Mitsunobu Yoshida, Toshikatsu Akiba, Hiroaki Nakamura