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).

  • Patent number: 11896205
    Abstract: 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: Grant
    Filed: March 17, 2021
    Date of Patent: February 13, 2024
    Assignee: Hitachi, Ltd.
    Inventors: Ayako Nishimura, Akihiko Kandori, Tsukasa Funane, Akiko Obata, Hirokazu Atsumori, Masashi Kiguchi
  • Publication number: 20230306604
    Abstract: 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: Application
    Filed: January 27, 2023
    Publication date: September 28, 2023
    Applicant: Hitachi, Ltd.
    Inventors: Hirokazu ATSUMORI, Stephanie SUTOKO, Tsukasa FUNANE, Ayako NISHIMURA, Akihiko KANDORI
  • Patent number: 11744486
    Abstract: 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: Grant
    Filed: October 19, 2020
    Date of Patent: September 5, 2023
    Assignees: Hiroshima University, Hitachi, Ltd.
    Inventors: Ayako Nishimura, Hirokazu Atsumori, Tsukasa Funane, Akihiko Kandori, Yasuaki Nakamura, Akiko Obata, Yuto Komatsu, Seiji Hama, Toshio Tsuji
  • Publication number: 20220087655
    Abstract: 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: Application
    Filed: March 17, 2021
    Publication date: March 24, 2022
    Inventors: Ayako NISHIMURA, Akihiko KANDORI, Tsukasa FUNANE, Akiko OBATA, Hirokazu ATSUMORI, Masashi KIGUCHI
  • Patent number: 11244552
    Abstract: 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: Grant
    Filed: August 7, 2020
    Date of Patent: February 8, 2022
    Assignee: HITACHI, LTD
    Inventors: Yuto Komatsu, Hirokazu Atsumori, Tsukasa Funane, Akiko Obata, Akihiko Kandori
  • Patent number: 11071483
    Abstract: 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: Grant
    Filed: March 23, 2018
    Date of Patent: July 27, 2021
    Assignee: HITACHI, LTD.
    Inventors: Masashi Egi, Masashi Kiguchi, Hirokazu Atsumori
  • Publication number: 20210121100
    Abstract: 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: Application
    Filed: October 19, 2020
    Publication date: April 29, 2021
    Inventors: Ayako NISHIMURA, Hirokazu ATSUMORI, Tsukasa FUNANE, Akihiko KANDORI, Yasuaki NAKAMURA, Akiko OBATA, Yuto KOMATSU, Seiji HAMA, Toshio TSUJI
  • Publication number: 20210090460
    Abstract: 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: Application
    Filed: July 22, 2020
    Publication date: March 25, 2021
    Inventors: Tsukasa FUNANE, Hirokazu ATSUMORI, Akihiko KANDORI, Akiko OBATA, Ayako NISHIMURA, Yuto KOMATSU, Takashi NUMATA, Seiji HAMA, Toshio TSUJI
  • Publication number: 20210082270
    Abstract: 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: Application
    Filed: August 7, 2020
    Publication date: March 18, 2021
    Applicant: HITACHI, LTD.
    Inventors: Yuto KOMATSU, Hirokazu ATSUMORI, Tsukasa FUNANE, Akiko OBATA, Akihiko KANDORI
  • Patent number: 10755187
    Abstract: 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: Grant
    Filed: June 17, 2015
    Date of Patent: August 25, 2020
    Assignee: Hitachi, Ltd.
    Inventors: Masashi Egi, Masashi Kiguchi, Hirokazu Atsumori
  • Patent number: 10548518
    Abstract: 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: Grant
    Filed: June 23, 2014
    Date of Patent: February 4, 2020
    Assignee: Hitachi, Ltd.
    Inventors: Tsukasa Funane, Takusige Katura, Hirokazu Atsumori, Masashi Kiguchi
  • Publication number: 20190110727
    Abstract: 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: Application
    Filed: March 23, 2018
    Publication date: April 18, 2019
    Applicant: HITACHI, LTD.
    Inventors: Masashi EGI, Masashi KIGUCHI, Hirokazu ATSUMORI
  • Patent number: 9888874
    Abstract: 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: Grant
    Filed: June 15, 2012
    Date of Patent: February 13, 2018
    Assignee: Hitachi, Ltd.
    Inventors: Akiko Nakajima, Hiroki Sato, Takushige Katsura, Hirokazu Atsumori, Tsukasa Funane
  • Publication number: 20170270423
    Abstract: 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: Application
    Filed: June 17, 2015
    Publication date: September 21, 2017
    Applicant: Hitachi, Ltd.
    Inventors: Masashi EGI, Masashi KIGUCHI, Hirokazu ATSUMORI
  • Patent number: 9706955
    Abstract: 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: Grant
    Filed: June 21, 2012
    Date of Patent: July 18, 2017
    Assignee: Hitachi, Ltd.
    Inventors: Hirokazu Atsumori, Masashi Kiguchi
  • Publication number: 20170079567
    Abstract: 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: Application
    Filed: June 23, 2014
    Publication date: March 23, 2017
    Inventors: Tsukasa FUNANE, Takusige KATURA, Hirokazu ATSUMORI, Masashi KIGUCHI
  • Patent number: 9198624
    Abstract: 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: Grant
    Filed: July 6, 2011
    Date of Patent: December 1, 2015
    Assignee: HITACHI MEDICAL CORPORATION
    Inventors: Tsukasa Funane, Hirokazu Atsumori, Takusige Katura, Masashi Kiguchi, Tsuyoshi Takatera, Michiyuki Fujiwara
  • Publication number: 20150297126
    Abstract: 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: Application
    Filed: June 21, 2012
    Publication date: October 22, 2015
    Applicant: HITACHI, LTD.
    Inventors: Hirokazu ATSUMORI, Masashi KIGUCHI
  • Publication number: 20150141865
    Abstract: 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: Application
    Filed: June 15, 2012
    Publication date: May 21, 2015
    Applicant: HITACHI, LTD.
    Inventors: Akiko Nakajima, Hiroki Sato, Takushige Katsura, Hirokazu Atsumori, Tsukasa Funane
  • Patent number: 8750951
    Abstract: 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: Grant
    Filed: July 2, 2008
    Date of Patent: June 10, 2014
    Assignee: Hitachi, Ltd.
    Inventors: Masashi Kiguchi, Hirokazu Atsumori, Tadahiro Horita