Patents by Inventor Akihiko Kandori
Akihiko Kandori 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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Publication number: 20220054078Abstract: The purpose of the present invention is to obtain a biological information analysis device, a biological information analysis method, and a biological information analysis system that enable more accurate determination of a swallowing motion. In order to attain the purpose, this biological information analysis device has: a swallowing motion assessment unit which assesses a user's motion by analyzing distance information and sound information that are obtained by measuring the motion and sound of the pharynx region; and a display unit, wherein the swallowing motion assessment unit is configured to output a first swallowing motion position that is assessed by analyzing the distance information and a second swallowing motion position that is assessed by analyzing the sound information, and the display unit is configured to display the distance information, the sound information, and the first swallowing motion position and the second swallowing motion position outputted by the swallowing motion assessment unit.Type: ApplicationFiled: December 28, 2018Publication date: February 24, 2022Inventors: Takashi KANEMARU, Yasuaki NAKAMURA, Akihiko KANDORI, Tomohiko MIZUGUCHI
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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: 11219407Abstract: An object of the present invention is to provide a technique of quantitatively measuring physical properties including both of viscosity and elasticity. A viscoelasticity measurement system includes a measurement apparatus, a processor, and a display apparatus. The measurement apparatus includes a movable unit continuously pressed against a measurement object, a first sensor outputting acceleration information corresponding to an acceleration of pressing-directional movement of a contact portion of the movable unit with respect to the measurement object, and a second sensor outputting reactive force information corresponding to a reactive force applied to the contact portion of the movable unit with respect to the measurement object. The processor calculates first information on an elasticity component of the measurement object and second information on a viscosity component of the measurement object based on the acceleration information and the reactive force information.Type: GrantFiled: April 6, 2016Date of Patent: January 11, 2022Assignee: MAXELL, LTD.Inventors: Yuhua Zhang, Akihiko Kandori, Masayoshi Ishibashi, Shinya Kajiyama
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Publication number: 20210401283Abstract: Provided is a technique with which it is possible to measure a subject's reaction by moving a visual target object in an arbitrarily defined direction as well as a horizontal direction. A dynamic visual acuity measuring device includes a projector projecting an index image pattern, a reflecting mirror reflecting light from the projector, a screen receiving light from the reflecting mirror and displaying the index image pattern, a movable casing holding and maintaining relative positions of the projector, the reflecting mirror, and the screen, a fixed casing supporting the movable casing, and a rotating shaft linking the movable casing rotatably to the fixed casing. In this device, the index image pattern displayed on the screen is moved in one direction by the reflecting mirror being displaced and a direction of movement of the index image pattern is changed in a coordinate system fixed to the fixed casing by the rotating shaft being rotated.Type: ApplicationFiled: September 8, 2021Publication date: December 30, 2021Inventor: Akihiko KANDORI
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Patent number: 11172849Abstract: The present invention addresses the problem of limiting power consumption and radio wave interference when assessing the movements of multiple sites of a living body. The present invention is a movement function assessment system provided with: a movement function measurement apparatus for calculating movement data on the basis of the relative distances of pairs of transmission coils and reception coils attached to movable portions of a living body; and an assessment apparatus for assessing the movement function of the living body on the basis of the movement data received from the movement function measurement apparatus. A control unit of the movement function measurement apparatus performs the switching of the multiple transmission coils by a switching unit (1) and the switching of the multiple reception coils by a switching unit (2) so that the paired transmission coils and reception coils are operated sequentially.Type: GrantFiled: June 12, 2015Date of Patent: November 16, 2021Assignee: MAXELL, LTD.Inventors: Akihiko Kandori, Yuko Sano, Kanako Esaki, Yuhua Zhang
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Publication number: 20210341368Abstract: An object of the present invention is to provide a durometer enabling a contact portion in contact with an object to perform smooth piston motion. The durometer includes a main body unit including a movable unit pressed continuously against an object to be measured, a first sensor outputting acceleration information corresponding to an acceleration of movement of a contact part of the object to be measured in contact with the movable unit in a pressing direction, a second sensor outputting reactive force information corresponding to a reactive force at the contact part of the object to be measured in contact with the movable unit, a motor, a crank mechanism driven by the motor and causing the main body unit and the movable unit to perform piston motion, and at least one buffering member disposed on a periphery of the main body unit.Type: ApplicationFiled: July 13, 2021Publication date: November 4, 2021Applicant: MAXELL, LTD.Inventors: Akihiko Kandori, Yuko Sano, Yuhua Zhang, Shigemitsu Ando, Mitsunobu Watanabe, MItsuo Okimoto
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Patent number: 11141058Abstract: Provided is a technique with which it is possible to measure a subject's reaction by moving a visual target object in an arbitrarily defined direction as well as a horizontal direction. A dynamic visual acuity measuring device includes a projector projecting an index image pattern, a reflecting mirror reflecting light from the projector, a screen receiving light from the reflecting mirror and displaying the index image pattern, a movable casing holding and maintaining relative positions of the projector, the reflecting mirror, and the screen, a fixed casing supporting the movable casing, and a rotating shaft linking the movable casing rotatably to the fixed casing. In this device, the index image pattern displayed on the screen is moved in one direction by the reflecting mirror being displaced and a direction of movement of the index image pattern is changed in a coordinate system fixed to the fixed casing by the rotating shaft being rotated.Type: GrantFiled: February 6, 2018Date of Patent: October 12, 2021Assignee: MAXELL, LTD.Inventor: Akihiko Kandori
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Publication number: 20210307653Abstract: A system for evaluating a degree of brain dysfunction of a subject, such as a decline in cognitive function, calculates a difference in movement functions between both hands in a coordination movement. The system includes a storage device for storing time-series data on a finger movement task of each of both hands of a test subject acquired by a movement sensor; a data processing device for analyzing the time-series data stored in the storage device; and a display device for displaying an analysis result analyzed by the data processing device. The data processing device includes a movement waveform generation unit for generating a movement waveform corresponding to the time-series data stored in the storage device; and a difference-between-hands feature quantity generation unit for generating a difference-between-hands feature quantity which represents a difference in respective finger movement tasks between both hands, based on the respective movement waveforms of both hands.Type: ApplicationFiled: June 18, 2021Publication date: October 7, 2021Applicant: MAXELL, LTD.Inventors: Akihiko Kandori, Yuko Sano
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Patent number: 11092526Abstract: An object of the present invention is to provide a durometer enabling a contact portion in contact with an object to perform smooth piston motion. The durometer includes a main body unit including a movable unit pressed continuously against an object to be measured, a first sensor outputting acceleration information corresponding to an acceleration of movement of a contact part of the object to be measured in contact with the movable unit in a pressing direction, a second sensor outputting reactive force information corresponding to a reactive force at the contact part of the object to be measured in contact with the movable unit, a motor, a crank mechanism driven by the motor and causing the main body unit and the movable unit to perform piston motion, and at least one buffering member disposed on a periphery of the main body unit.Type: GrantFiled: March 2, 2020Date of Patent: August 17, 2021Assignee: MAXELL, LTD.Inventors: Akihiko Kandori, Yuko Sano, Yuhua Zhang, Shigemitsu Ando, Mitsunobu Watanabe, MItsuo Okimoto
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Patent number: 11064914Abstract: A system for evaluating the degree of brain dysfunction of a subject, such as a decline in cognitive function, calculates a difference in movement functions between both hands in a coordination movement. The system includes a storage device for storing time-series data on a finger movement task of each of both hands of a test subject acquired by a movement sensor; a data processing device for analyzing the time-series data stored in the storage device; and a display device for displaying an analysis result analyzed by the data processing device. The data processing device includes a movement waveform generation unit for generating a movement waveform corresponding to the time-series data stored in the storage device; and a difference-between-hands feature quantity generation unit for generating a difference-between-hands feature quantity which represents a difference in respective finger movement tasks between both hands, based on the respective movement waveforms of both hands.Type: GrantFiled: June 12, 2015Date of Patent: July 20, 2021Assignee: MAXELL, LTD.Inventors: Akihiko Kandori, Yuko Sano
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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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Patent number: 10989694Abstract: Provided is a rail inspection system capable of accurately detecting a defect of a railroad rail. The system includes: a sensor part group that has a plurality of sensor parts having receiver coils, and first oscillator coils and second oscillator coils corresponding to the receiver coils being arranged in a line parallel in a width direction of a railroad rail to be inspected; an oscillation part that supplies an oscillation signal to each of the first oscillator coils and the second oscillator coils; and a detection part group that has a plurality of detection parts to detect, with respect to an output signal from each of the receiver coils when the sensor part group moves in a laying direction of the railroad rail, a first inspection signal corresponding to a first phase of the output signal and a second inspection signal corresponding to a second phase of the output signal.Type: GrantFiled: September 11, 2017Date of Patent: April 27, 2021Assignee: Hitachi High-Tech Fine Systems CorporationInventors: Ryuzo Kawabata, Hiroshi Suzuki, Kenji Yamamoto, Akihiko Kandori
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Patent number: 10963805Abstract: The present invention solves a problem that there may be a case that an estimated value of regression cannot be calculated depending on a discrimination result when a regression method is applied after a discrimination method, and has a purpose to obtain an estimating equation with high accuracy even when the number of sample groups to which the regression method is applied is small. An estimating equation that satisfies the regression and discrimination at the same time can be obtained by combining a discrimination evaluation function that evaluates discrimination accuracy and a regression evaluation function that evaluates regression accuracy, calculating a combination evaluation function, and optimizing the combination evaluation function.Type: GrantFiled: October 5, 2012Date of Patent: March 30, 2021Assignee: MAXELL, LTD.Inventors: Yuko Sano, Akihiko Kandori, Toshinori Miyoshi
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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: 20210076978Abstract: To perform respiratory monitoring and cardiac-output measurement on general patients, an aspect of a biological measurement apparatus includes: at least two electrodes that are attached to a living body; a power supply that causes an AC current to flow between the two electrodes; at least two coils that are placed so as to sandwich a line linking the two electrodes, and detect a magnetic field related to a change in the AC current accompanying a change in impedance of the living body; and a detection circuit that performs addition or subtraction of signals related to the magnetic field detected with the two coils, and outputs the signals as a change in the impedance.Type: ApplicationFiled: August 7, 2020Publication date: March 18, 2021Applicant: HITACHI, LTD.Inventors: Akihiko KANDORI, Ryuzo KAWABATA, Kuniomi OGATA, Takako MIZOGUCHI, Tsukasa FUNANE
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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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Publication number: 20200256776Abstract: An object of the present invention is to provide a durometer enabling a contact portion in contact with an object to perform smooth piston motion. The durometer includes a main body unit including a movable unit pressed continuously against an object to be measured, a first sensor outputting acceleration information corresponding to an acceleration of movement of a contact part of the object to be measured in contact with the movable unit in a pressing direction, a second sensor outputting reactive force information corresponding to a reactive force at the contact part of the object to be measured in contact with the movable unit, a motor, a crank mechanism driven by the motor and causing the main body unit and the movable unit to perform piston motion, and at least one buffering member disposed on a periphery of the main body unit.Type: ApplicationFiled: March 2, 2020Publication date: August 13, 2020Applicant: MAXELL, LTD.Inventors: Akihiko KANDORI, Yuko SANO, Yuhua ZHANG, Shigemitsu ANDO, Mitsunobu WATANABE, MItsuo OKIMOTO
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Patent number: 10739311Abstract: In a rail inspection system, a positional deviation can be detected with accuracy. The rail inspection system includes a first sensor unit which is disposed to face a rail for a vehicle, and includes at least one receiver coil and at least one oscillation coil which are arranged in an arrangement direction intersecting with a layout direction of the rail, an AC voltage source which applies AC voltage to the oscillation coil, and a displacement detection unit which detects a displacement between the rail and the first sensor unit based on an induced voltage of the receiver coil. The first sensor unit is configured such that, when the displacement is a first displacement, a first maximum value appears in the induced voltage, and when the displacement is a second displacement, a second maximum value of which a phase is reversed against the first maximum value appears in the induced voltage.Type: GrantFiled: June 9, 2017Date of Patent: August 11, 2020Assignee: HITACHI HIGH-TECH FINE SYSTEMS CORPORATIONInventors: Ryuzo Kawabata, Akihiko Kandori
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Publication number: 20200245902Abstract: The abnormal data processing system is provided with: a storage unit for holding a multiple-subject DB in which data on multiple subjects are accumulated and individual-subject DB in which data on individual subjects are accumulated; an individual-subject DB divergence-degree calculation unit for calculating an individual-subject DB divergence degree which is the degree of divergence of the new data from the individual-subject DB; a multiple-subject DB divergence degree calculation unit for calculating a multiple-subject DB divergence degree which is the degree of divergence of the new data from the multiple-subject DB; and a composite divergence degree calculation unit for determining a composite divergence by compositing the individual-subject DB divergence degree and the multiple-subject DB divergence degree using the number of data instances in the individual-subject DB. The abnormal data processing system determines whether or not the new data is abnormal on the basis of the composite divergence degree.Type: ApplicationFiled: October 17, 2018Publication date: August 6, 2020Inventors: Yuko SANO, Akihiko KANDORI, Tomohiko MIZUGUCHI, Ying YIN
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Publication number: 20200222756Abstract: A training apparatus is capable of generating and presenting a suitable training menu for finger exercise to maintain or improve a cognitive function and/or an exercise function of a human and supporting training of the human. The training apparatus includes a measuring apparatus and a terminal device. Analysis evaluating data based on measurement of the finger exercise including finger tapping is obtained, and the analysis evaluating data contains an evaluation value of an index item related to an exercise function of a user. A training menu for the user is generated based on the analysis evaluating data and contains a training item for the finger exercise. The index item includes at least one of an amount of exercise, endurance, rhythmicity, cooperativeness of both sides, or marker trackability. The training item includes an exercise to carry out the finger tapping in accordance with teaching information, stimulation, or a marker.Type: ApplicationFiled: March 7, 2017Publication date: July 16, 2020Inventors: Yuko SANO, Ying YIN, Tomohiko MIZUGUCHI, Akihiko KANDORI, Mitsunobu WATANABE, Hiroshi SHIMIZU