Patents by Inventor Hirokazu Atsumori
Hirokazu Atsumori 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: 11896205Abstract: A digestive organ internal contents sampling capsule for sampling internal contents in a digestive organ includes: a cylindrical container insoluble in a digestive tract for housing the internal contents in the digestive organ; an outer lid enclosing an orifice of the cylindrical container and to dissolve at least partially in the digestive organ; an inner lid arranged in the cylindrical container, and to swell in response to contact with the internal contents in the digestive organ to enclose the orifice of the cylindrical container after the orifice is exposed by dissolving of at least a part of the outer lid; and a marker material to be discharged together with the cylindrical container housing the internal contents in the digestive organ and feces.Type: GrantFiled: March 17, 2021Date of Patent: February 13, 2024Assignee: Hitachi, Ltd.Inventors: Ayako Nishimura, Akihiko Kandori, Tsukasa Funane, Akiko Obata, Hirokazu Atsumori, Masashi Kiguchi
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Publication number: 20230306604Abstract: An image processing apparatus includes an image acquisition unit acquiring a medical image, a region setting unit setting a peripheral region around an inner region set in the medical image as a region including a lesion, an intensity value ratio distribution calculation unit calculating a histogram comprising a distribution of intensity value ratios for the inner region and calculating a histogram being a distribution of intensity value ratios for the peripheral region, a ratio difference calculation unit that calculates a ratio difference comprising a difference between intensity value ratios in the inner region and peripheral regions for each of predetermined intensity values, an intensity value determination unit selecting a pixel to be highlighted in the medical image based on the ratio difference, and a display processing unit outputting the medical image whereby the pixel selected by the pixel selection unit is highlighted in the medical image to a display device.Type: ApplicationFiled: January 27, 2023Publication date: September 28, 2023Applicant: Hitachi, Ltd.Inventors: Hirokazu ATSUMORI, Stephanie SUTOKO, Tsukasa FUNANE, Ayako NISHIMURA, Akihiko KANDORI
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Patent number: 11744486Abstract: A biometric system includes: a camera that captures a subject; a pressure information collection unit that detects a pressure value of at least one sole of the subject; a skeleton direction vector calculation unit that calculates a skeleton direction vector of the subject captured by the camera; a floor reaction force vector calculation unit that calculates a floor reaction force vector on a basis of information on pressure from the pressure information collection unit; and an analysis result output unit that displays, in a superimposing manner, the skeleton direction vector calculated by the skeleton direction vector calculation unit and the floor reaction force vector calculated by the floor reaction force vector calculation unit.Type: GrantFiled: October 19, 2020Date of Patent: September 5, 2023Assignees: Hiroshima University, Hitachi, Ltd.Inventors: Ayako Nishimura, Hirokazu Atsumori, Tsukasa Funane, Akihiko Kandori, Yasuaki Nakamura, Akiko Obata, Yuto Komatsu, Seiji Hama, Toshio Tsuji
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Publication number: 20220087655Abstract: A digestive organ internal contents sampling capsule for sampling internal contents in a digestive organ includes: a cylindrical container insoluble in a digestive tract for housing the internal contents in the digestive organ; an outer lid enclosing an orifice of the cylindrical container and to dissolve at least partially in the digestive organ; an inner lid arranged in the cylindrical container, and to swell in response to contact with the internal contents in the digestive organ to enclose the orifice of the cylindrical container after the orifice is exposed by dissolving of at least a part of the outer lid; and a marker material to be discharged together with the cylindrical container housing the internal contents in the digestive organ and feces.Type: ApplicationFiled: March 17, 2021Publication date: March 24, 2022Inventors: Ayako NISHIMURA, Akihiko KANDORI, Tsukasa FUNANE, Akiko OBATA, Hirokazu ATSUMORI, Masashi KIGUCHI
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Patent number: 11244552Abstract: A watching system, which calculates a fall probability of an imaged person to be fallen using a computer which includes a processor and a memory, includes a trunk extraction unit that receives time-series skeleton information of the imaged person, calculates an angle between a head and a waist of the imaged person based on the skeleton information, extracts the angle as a trunk of the imaged person, calculates the center of the trunk as a trunk center based on trunk information set in advance, extracts a trunk to be reference as a reference trunk from a time-series trunk calculated from the time-series skeleton information, and holds a center of the reference trunk, and a fall probability calculation unit that calculates a distance between a trunk center of the reference trunk and a trunk center of the trunk as a deviation amount, and calculates the fall probability from the deviation amount.Type: GrantFiled: August 7, 2020Date of Patent: February 8, 2022Assignee: HITACHI, LTDInventors: Yuto Komatsu, Hirokazu Atsumori, Tsukasa Funane, Akiko Obata, Akihiko Kandori
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Patent number: 11071483Abstract: A mood score calculation apparatus has a memory device that stores a manipulation history of a user on a predetermined device and a arithmetic device that classifies the manipulation history into any one of a verbal task and a spatial task on the basis of a predetermined algorithm, calculates the user's mood score on the basis of a relative relationship between the manipulation histories for each of the verbal task and the spatial task specified in the classification, and outputs information on the mood score into a predetermined output target.Type: GrantFiled: March 23, 2018Date of Patent: July 27, 2021Assignee: HITACHI, LTD.Inventors: Masashi Egi, Masashi Kiguchi, Hirokazu Atsumori
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Publication number: 20210121100Abstract: A biometric system includes: a camera that captures a subject; a pressure information collection unit that detects a pressure value of at least one sole of the subject; a skeleton direction vector calculation unit that calculates a skeleton direction vector of the subject captured by the camera; a floor reaction force vector calculation unit that calculates a floor reaction force vector on a basis of information on pressure from the pressure information collection unit; and an analysis result output unit that displays, in a superimposing manner, the skeleton direction vector calculated by the skeleton direction vector calculation unit and the floor reaction force vector calculated by the floor reaction force vector calculation unit.Type: ApplicationFiled: October 19, 2020Publication date: April 29, 2021Inventors: Ayako NISHIMURA, Hirokazu ATSUMORI, Tsukasa FUNANE, Akihiko KANDORI, Yasuaki NAKAMURA, Akiko OBATA, Yuto KOMATSU, Seiji HAMA, Toshio TSUJI
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Publication number: 20210090460Abstract: An information processing system visualizes brain states to optimize rehabilitation programs for rapid feedback of their effects to a patient and healthcare staff, to thereby promote the efficiency of rehabilitation. An embodiment of the system includes: a storage section that stores test-result brain-state relationship information associating results of activities of multiple examinees subjected to predetermined tests with brain states of the examinees; an input section that accepts a first test result as the result of the activity of a first examinee subjected to the predetermined tests; a control section that estimates the brain state from the first test result on the basis of the test-result brain-state relationship information; and an output section that outputs the estimated brain state.Type: ApplicationFiled: July 22, 2020Publication date: March 25, 2021Inventors: Tsukasa FUNANE, Hirokazu ATSUMORI, Akihiko KANDORI, Akiko OBATA, Ayako NISHIMURA, Yuto KOMATSU, Takashi NUMATA, Seiji HAMA, Toshio TSUJI
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Publication number: 20210082270Abstract: A watching system, which calculates a fall probability of an imaged person to be fallen using a computer which includes a processor and a memory, includes a trunk extraction unit that receives time-series skeleton information of the imaged person, calculates an angle between a head and a waist of the imaged person based on the skeleton information, extracts the angle as a trunk of the imaged person, calculates the center of the trunk as a trunk center based on trunk information set in advance, extracts a trunk to be reference as a reference trunk from a time-series trunk calculated from the time-series skeleton information, and holds a center of the reference trunk, and a fall probability calculation unit that calculates a distance between a trunk center of the reference trunk and a trunk center of the trunk as a deviation amount, and calculates the fall probability from the deviation amount.Type: ApplicationFiled: August 7, 2020Publication date: March 18, 2021Applicant: HITACHI, LTD.Inventors: Yuto KOMATSU, Hirokazu ATSUMORI, Tsukasa FUNANE, Akiko OBATA, Akihiko KANDORI
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Patent number: 10755187Abstract: A mood score calculation system includes a processor and a memory. The memory is configured to hold relationship information on a relationship between a mood score of a user and a statistical feature for indicating fluctuation of operational interval time of a user terminal. The processor is configured to acquire an operation log of a first user terminal. The processor is configured to calculate, from the operation log, a value of a statistical feature for indicating fluctuation of operational interval time of the first user terminal. The processor is configured to determine a mood score of a user of the first user terminal based on the value of the statistical feature and the relationship information and output the mood score.Type: GrantFiled: June 17, 2015Date of Patent: August 25, 2020Assignee: Hitachi, Ltd.Inventors: Masashi Egi, Masashi Kiguchi, Hirokazu Atsumori
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Patent number: 10548518Abstract: In a biophotonic measurement device based on the principles of near-infrared spectroscopy (NIRS), in order to realize appropriate conditions in any light-source/detector arrangement and various required specifications, a photoirradiation module 13 including a light source 101, a photodetection module 14 including a photodetector 102, and a central control/analysis unit 18 are provided. The central control/analysis unit 18 acquires correspondence relations between each of photodetection units and photoirradiation units by using a correspondence acquiring unit 19. The photoirradiation module 13 and the photodetection module 14 switch signal detection methods at each measurement point by utilizing an evaluation function value determined by detection output of the photodetector 102 so that the plurality of signal detection methods are mixable, and the high-precision and optimum biophotonic measurement device is realized.Type: GrantFiled: June 23, 2014Date of Patent: February 4, 2020Assignee: Hitachi, Ltd.Inventors: Tsukasa Funane, Takusige Katura, Hirokazu Atsumori, Masashi Kiguchi
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Publication number: 20190110727Abstract: A mood score calculation apparatus has a memory device that stores a manipulation history of a user on a predetermined device and a arithmetic device that classifies the manipulation history into any one of a verbal task and a spatial task on the basis of a predetermined algorithm, calculates the user's mood score on the basis of a relative relationship between the manipulation histories for each of the verbal task and the spatial task specified in the classification, and outputs information on the mood score into a predetermined output target.Type: ApplicationFiled: March 23, 2018Publication date: April 18, 2019Applicant: HITACHI, LTD.Inventors: Masashi EGI, Masashi KIGUCHI, Hirokazu ATSUMORI
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Patent number: 9888874Abstract: The present invention provides a stimulus presentation system which determines a mental state and changes presentation contents of a problem based on the determined mental state. The system determines the mental state by measuring gaze and cerebral function of a user, and changes presentation contents of a problem based on the determined mental state.Type: GrantFiled: June 15, 2012Date of Patent: February 13, 2018Assignee: Hitachi, Ltd.Inventors: Akiko Nakajima, Hiroki Sato, Takushige Katsura, Hirokazu Atsumori, Tsukasa Funane
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Publication number: 20170270423Abstract: A mood score calculation system includes a processor and a memory. The memory is configured to hold relationship information on a relationship between a mood score of a user and a statistical feature for indicating fluctuation of operational interval time of a user terminal. The processor is configured to acquire an operation log of a first user terminal. The processor is configured to calculate, from the operation log, a value of a statistical feature for indicating fluctuation of operational interval time of the first user terminal. The processor is configured to determine a mood score of a user of the first user terminal based on the value of the statistical feature and the relationship information and output the mood score.Type: ApplicationFiled: June 17, 2015Publication date: September 21, 2017Applicant: Hitachi, Ltd.Inventors: Masashi EGI, Masashi KIGUCHI, Hirokazu ATSUMORI
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Patent number: 9706955Abstract: Provided is a biological state assessment device for assessing biological state, such as mood or emotions, using non-invasive biophotonic measurement technology. The present invention includes a light irradiation unit (1041), a light-receiving unit (1061), and an inputting means (112). A subject (800) is presented with a plurality of different problems (first problem, second problem), and a biological signal in the interior of the subject is calculated from the intensity of light received by the light-receiving unit (1061). Subjective information about the subject is accepted by the inputting means (112). The difference is calculated between the subjective information and the relative value of the biological signal of the measurement point for the first problem and the biological signal of the measurement point for the second problem, and the result is displayed.Type: GrantFiled: June 21, 2012Date of Patent: July 18, 2017Assignee: Hitachi, Ltd.Inventors: Hirokazu Atsumori, Masashi Kiguchi
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Publication number: 20170079567Abstract: In a biophotonic measurement device based on the principles of near-infrared spectroscopy (NIRS), in order to realize appropriate conditions in any light-source/detector arrangement and various required specifications, a photoirradiation module 13 including a light source 101, a photodetection module 14 including a photodetector 102, and a central control/analysis unit 18 are provided. The central control/analysis unit 18 acquires correspondence relations between each of photodetection units and photoirradiation units by using a correspondence acquiring unit 19. The photoirradiation module 13 and the photodetection module 14 switch signal detection methods at each measurement point by utilizing an evaluation function value determined by detection output of the photodetector 102 so that the plurality of signal detection methods are mixable, and the high-precision and optimum biophotonic measurement device is realized.Type: ApplicationFiled: June 23, 2014Publication date: March 23, 2017Inventors: Tsukasa FUNANE, Takusige KATURA, Hirokazu ATSUMORI, Masashi KIGUCHI
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Patent number: 9198624Abstract: The present invention is capable of separating/removing the influence of skin blood flow contained in near infrared spectroscopy (NIRS) signals and extracting a brain- or brain cortex-origin signal. Moreover, the present invention enables versatile separation of brain-origin and skin-origin signals in view of differences among individuals. A biological photometric device, wherein light transmitters and light receivers are located in such a manner that measurement can be conducted at a plurality of source-detector (SD) distances and light received by the individual light-receivers can pass through the gray matter to thereby separate a brain-origin signal and a skin-origin signal. Individual component analysis (ICA) is conducted on data obtained at the individual measurement points. Then, it is determined whether each individual component originates in the brain or in the skin with the use of the SD distance-dependency of the weighted value of each of the separated components.Type: GrantFiled: July 6, 2011Date of Patent: December 1, 2015Assignee: HITACHI MEDICAL CORPORATIONInventors: Tsukasa Funane, Hirokazu Atsumori, Takusige Katura, Masashi Kiguchi, Tsuyoshi Takatera, Michiyuki Fujiwara
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Publication number: 20150297126Abstract: Provided is a biological state assessment device for assessing biological state, such as mood or emotions, using non-invasive biophotonic measurement technology. The present invention includes a light irradiation unit (1041), a light-receiving unit (1061), and an inputting means (112). A subject (800) is presented with a plurality of different problems (first problem, second problem), and a biological signal in the interior of the subject is calculated from the intensity of light received by the light-receiving unit (1061). Subjective information about the subject is accepted by the inputting means (112). The difference is calculated between the subjective information and the relative value of the biological signal of the measurement point for the first problem and the biological signal of the measurement point for the second problem, and the result is displayed.Type: ApplicationFiled: June 21, 2012Publication date: October 22, 2015Applicant: HITACHI, LTD.Inventors: Hirokazu ATSUMORI, Masashi KIGUCHI
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Publication number: 20150141865Abstract: The present invention provides a stimulus presentation system which determines a mental state and changes presentation contents of a problem based on the determined mental state. The system determines the mental state by measuring gaze and cerebral function of a user, and changes presentation contents of a problem based on the determined mental state.Type: ApplicationFiled: June 15, 2012Publication date: May 21, 2015Applicant: HITACHI, LTD.Inventors: Akiko Nakajima, Hiroki Sato, Takushige Katsura, Hirokazu Atsumori, Tsukasa Funane
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Patent number: 8750951Abstract: To make the peak value of the driving current of light source smaller than the conventional one and to make the peak value of the light receiving level of light-sensitive elements smaller than the conventional one in order to save power consumption of the device and to improve the precision of measurement, codes of which the bits of the Hadamard codes are shifted by the same bit for each code series having the same bit cycle, or codes of which the bits of a PN code are shifted are used as different codes.Type: GrantFiled: July 2, 2008Date of Patent: June 10, 2014Assignee: Hitachi, Ltd.Inventors: Masashi Kiguchi, Hirokazu Atsumori, Tadahiro Horita