Patents by Inventor Shigenori Kawabata

Shigenori Kawabata 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).

  • Publication number: 20240050189
    Abstract: A biomagnetic field measurement device includes an irradiation unit configured to irradiate a subject with radiation; an imaging unit having a light-receiving surface for receiving radiation, the imaging unit being configured to image the subject based on the radiation from the irradiation unit; a marker part configured to absorb the radiation from the irradiation unit; and a processing circuit configured to output biological information based on third position information of the marker part and an imaged result of the subject by the imaging unit, the third position information of the marker part being calculated from first position information of the marker part, second position information of the irradiation unit, and a captured image of the marker part imaged by the imaging unit.
    Type: Application
    Filed: August 8, 2023
    Publication date: February 15, 2024
    Applicants: Ricoh Company, Ltd., National University Corporation Tokyo Medical and Dental University
    Inventors: Masahiro Takada, Shigenori Kawabata, Akira Kinoshita
  • Publication number: 20240023862
    Abstract: A diagnostic support apparatus includes a computing unit that computes a decreasing rate of a current intensity of an inward current flowing into a nerve pathway, based on magnetic field data obtained by measuring a magnetic field generated by a subject.
    Type: Application
    Filed: January 11, 2022
    Publication date: January 25, 2024
    Applicants: Ricoh Company, Ltd., National University Corporation Tokyo Medical and Dental University
    Inventors: Nobuyori NAGAOKA, Taishi WATANABE, Shigenori KAWABATA
  • Publication number: 20230284951
    Abstract: The present invention is designed such that, even when inward currents cannot be calculated properly, it is possible to generate current waveforms that can appropriately evaluate the action of a target body tissue by calculating currents that are equivalent to inward currents. A biomagnetic field measurement system includes circuitry and a memory storing executable instructions which, when executed by the circuitry, cause the circuitry to: based on current components extracted from current signals calculated from a biomagnetic field signal, add up current waveforms of current components along a conduction pathway of an action current in a body tissue that is targeted for evaluation, and generate a current waveform for evaluating an intra-cellular current flowing in the conduction pathway, locations of the current components of the added current waveforms being predetermined set distances apart on the conduction pathway, in front of and behind a location of interest on the conduction pathway.
    Type: Application
    Filed: March 6, 2023
    Publication date: September 14, 2023
    Applicants: Ricoh Company, Ltd., National University Corporation Tokyo Medical and Dental University
    Inventors: Koki Ishida, Taishi Watanabe, Shigenori Kawabata, Yuta Tanaka
  • Patent number: 11666759
    Abstract: A nerve stimulating apparatus includes a plurality of stimulating units configured to respectively apply stimuli to a plurality of nerve regions branching from a particular nerve region of a living body, and a stimulation timing controller configured to set generating timings of respectively generating the stimuli at the plurality of stimulating units. The stimulation timing controller sets the generating timings of generating the stimuli at the plurality of stimulating units based on response results of the particular nerve region, the response results being obtained in response to the stimuli that are respectively generated at the plurality of stimulating units and that are respectively applied to the plurality of nerve regions, and the response results being measured by a biometric information measuring apparatus that measures biometric information.
    Type: Grant
    Filed: October 13, 2020
    Date of Patent: June 6, 2023
    Assignees: Ricoh Company, Ltd, National University Corporation Tokyo Medical and Dental University
    Inventors: Shinji Sato, Sukchan Kim, Taishi Watanabe, Yuki Mitani, Yuki Miyano, Shigenori Kawabata, Toru Sasaki
  • Patent number: 11666261
    Abstract: An objective of the present invention is to provide a biomagnetism measurement device capable of three-dimensionally acquiring magnetism information of a living body with ease. This biomagnetism measurement device (101) is for measuring biomagnetism using a plurality of magnetic sensors (1) at the same time. The plurality of magnetic sensors (1) is retained by a retaining part (10) (a first retaining portion [11] and a second retaining portion [12]) so as to have different measurement directions. Furthermore, the retaining part (10) (the first retaining portion [11] and the second retaining portion [12]) has arranged thereon the plurality of magnetic sensors (1) so as to enable biomagnetism to be measured at a plurality of sites at the same time. The magnetic sensor (1) comprises a means for detecting the biomagnetism in a temperature environment commensurate with normal temperature.
    Type: Grant
    Filed: August 21, 2018
    Date of Patent: June 6, 2023
    Assignees: National University Corporation Tokyo Medical and Dental University, TDK CORPORATION
    Inventors: Shigenori Kawabata, Tomohiko Shibuya
  • Patent number: 11647928
    Abstract: The objective of the present invention is to provide a biomagnetism measuring device with which it is possible for a magnetic sensor to be disposed in an optimal position in accordance with an object being measured. A biomagnetism measuring device (1) according to the present invention is provided with: a plurality of magnetic sensors (11) which detect biomagnetism; and a holding portion (12) in which are formed frames (13) which detachably hold the plurality of magnetic sensors (11) in such a way as to face a living body. Further, the biomagnetism measuring device (1) according to the present invention is provided with: a plurality of magnetic sensors (11) which detect biomagnetism; and a holding portion (12) in which are formed rails (16) which movably hold the plurality of magnetic sensors (11) in such a way as to face a living body.
    Type: Grant
    Filed: June 2, 2017
    Date of Patent: May 16, 2023
    Assignees: National University Corporation Tokyo Medical and Dental University, TDK Corporation
    Inventors: Shigenori Kawabata, Tomohiko Shibuya, Shuichi Okawa
  • Patent number: 11612368
    Abstract: The present invention provides a biometric information measuring device with which a diagnostic imaging result and a biomagnetism measurement result can be superimposed simply and with satisfactory accuracy, and which is easy to handle. This biometric information measuring device (1) is provided with: a biomagnetism detecting unit (2) capable of detecting biomagnetism of a subject (S); and a radiation detecting unit (3) capable of acquiring an image corresponding to irradiated radiation, as digital image data, by means of the supply of a power source. The radiation detecting unit (3) is disposed between a measuring region of the subject (S) and the biomagnetism detecting unit (2). Further, it is preferable to provide a control unit (6) capable of performing control such that the power source is not supplied to the radiation detecting unit (3) while the biomagnetism detecting unit (2) is detecting biomagnetism.
    Type: Grant
    Filed: September 29, 2017
    Date of Patent: March 28, 2023
    Assignees: National University Corporation Tokyo Medical and Dental University, TDK CORPORATION
    Inventors: Shigenori Kawabata, Tomohiko Shibuya, Shuichi Okawa
  • Publication number: 20220409156
    Abstract: A biometric information display apparatus (30) for displaying a measurement result obtained by measuring a biometric signal, includes a maximum value calculation unit (63) configured to calculate a maximum value of the measurement result in a certain period of time for at least one of blocks into which a measurement area, in which the biometric signal is measured, is divided, a determination unit (64) configured to determine whether a measurement value in the at least one of blocks is greater than or equal to a threshold value obtained by multiplying the maximum value by a fractional value, the fractional value being determined in advance, and a display control unit configured to display, in response to an occurrence of an event in which the measurement value is determined to be greater than or equal to the threshold value, the measurement result in such a manner as to indicate the occurrence of the event.
    Type: Application
    Filed: November 25, 2020
    Publication date: December 29, 2022
    Applicants: Ricoh Company, Ltd., National University Corporation Tokyo Medical and Dental University
    Inventors: Yuki MIYANO, Taishi WATANABE, Shigenori KAWABATA
  • Publication number: 20220369982
    Abstract: A biomagnetic field measurement processing apparatus includes circuitry; and a memory storing computer-executable instructions that cause the circuitry to execute reconfiguring a current signal from a biomagnetic field signal; extracting a current component from the current signal; and based on the extracted current component, adding to each other at least two current waveforms among current waveforms of a plurality of inward currents that are current components directed toward a nerve axon from around the nerve axon, or adding to each other at least two current waveforms among current waveforms of a plurality of inward currents that are current components directed toward a muscle fiber from around the muscle fiber, and generating a current waveform to be displayed on a display device, according to the at least two current waveforms added to each other.
    Type: Application
    Filed: May 17, 2022
    Publication date: November 24, 2022
    Applicants: Ricoh Company, Ltd., National University Corporation Tokyo Medical and Dental University
    Inventors: Koki ISHIDA, Taishi WATANABE, Shigenori KAWABATA, Jun HASHIMOTO
  • Publication number: 20220296143
    Abstract: A biomagnetism measurement apparatus includes a memory and a processor configured to set a curved surface as a region-of-interest based on a morphological image including a portion to be evaluated of a subject, the morphological image being acquired by an image acquisition apparatus, and the curved surface being a surface on which an anterior-posterior position of the subject changes in a cranial-caudal direction and in a left-right direction along a position of a nerve to be evaluated. The processor is further configured to estimate current distribution in the region-of-interest based on magnetic data, the magnetic data being acquired by measuring a magnetic field with a magnetic measurement instrument, and the magnetic field being generated by an electrical activity of a nerve in the portion to be evaluated.
    Type: Application
    Filed: March 14, 2022
    Publication date: September 22, 2022
    Applicants: Ricoh Company, Ltd., National University Corporation Tokyo Medical and Dental University
    Inventors: Koki ISHIDA, Taishi WATANABE, Shigenori KAWABATA, Jun HASHIMOTO
  • Patent number: 11443717
    Abstract: A biometric information display device includes a display controller configured to display a morphological image indicative of a morphology of a subject, on a display, an input controller configured to receive a designation of a specified position on the morphological image, a pathway generating section configured to generate a pathway based on the specified position on the morphological image, and a current extracting section configured to extract current components at a plurality of positions along the pathway, based on current information reconstructed based on magnetic field measurement data generated by the subject. The display controller displays the current components extracted along the pathway on the display.
    Type: Grant
    Filed: November 20, 2020
    Date of Patent: September 13, 2022
    Assignees: Ricoh Company, Ltd., National University Corporation Tokyo Medical and Dental University
    Inventors: Yoichiro Takahashi, Taishi Watanabe, Shigenori Kawabata
  • Patent number: 11412945
    Abstract: The present invention addresses the problem of providing a muscle activity measurement device and a muscle activity measurement method which make it possible to measure the muscle activity of an object to be sensed with increased accuracy. The muscle activity measurement device is provided with a magnetic sensor unit which senses a magnetic field generated from a living body. The muscle activity measurement device identifies an installed direction of the muscle activity measurement device, and includes an indication, on a surface of a container, which comprises identification information for installing the muscle activity measurement device in such a way that a magnetism sensing direction X of the magnetic sensor unit and the direction in which the muscle fibers of the living body as the object to be sensed extend are substantially orthogonal to each other.
    Type: Grant
    Filed: June 6, 2017
    Date of Patent: August 16, 2022
    Assignees: National University Corporation Tokyo Medical and Dental University, TDK CORPORATION
    Inventors: Shigenori Kawabata, Shuichi Okawa, Shuta Ushio
  • Patent number: 11375934
    Abstract: A biomagnetic measurement apparatus includes a table on which a subject is placed; a biomagnetic detector configured to detect a biomagnetic field of the subject; a supporter configured to support a detection target region from which the biomagnetic field of the subject is detected; a radiation detector provided below the supporter; and a position changer configured to change relative positions of the biomagnetic detector and the detection target region. The supporter has a surface shape that corresponds to a surface of the biomagnetic detector.
    Type: Grant
    Filed: November 23, 2018
    Date of Patent: July 5, 2022
    Assignees: Ricoh Company, Ltd., NATIONAL UNIVERSITY CORPORATION TOKYO MEDICAL AND DENTAL UNIVERSITY
    Inventors: Yoshinori Okada, Yoshihisa Naijo, Hiroshi Deguchi, Taishi Watanabe, Yuki Miyano, Shigenori Kawabata
  • Publication number: 20220202371
    Abstract: A biological-data processing apparatus includes a processor; and a memory that includes instructions, which when executed, cause the processor to execute performing an addition-averaging process every time an addition count of biological data reaches a predetermined count, the biological data being measured in response to a trigger signal associated with a stimulus applied to one or more parts; storing, in a storage, addition-average data resulting from the addition-averaging process performed for each of the stimulated one or more parts, in association with the addition count in the addition-average data; and performing a biological data process based on the biological data, by using the addition-average data corresponding to each of the stimulated one or more parts, the addition-average data being acquired by referring to the storage based on the addition count that is specified.
    Type: Application
    Filed: December 22, 2021
    Publication date: June 30, 2022
    Applicants: Ricoh Company, Ltd., National University Corporation Tokyo Medical and Dental University
    Inventors: Fumikazu HOSHI, Yuki Miyano, Hideaki Yamagata, Shigenori Kawabata, Nobuyori Nagaoka, Taishi Watanabe
  • Patent number: 11317843
    Abstract: The objective of the present invention is to provide a biomagnetism measuring device capable of accurately detecting biomagnetism regardless of the object to be measured. This biomagnetism measuring device (1) is provided with: a plurality of magnetic sensors (11) which detect biomagnetism of a living body (100); a retaining portion (12) including retaining holes (12a) which retain the plurality of magnetic sensors (11) with freedom to move individually; and a movement mechanism which moves the magnetic sensors (11) individually in a contacting/separating direction causing the magnetic sensors (11) to come into contact with or separate from the living body (100). As movement mechanisms there may be mentioned, for example, a pneumatic/hydraulic mechanism (20), a resilient body mechanism (30), a screw mechanism (40) and a gear mechanism (50).
    Type: Grant
    Filed: August 1, 2017
    Date of Patent: May 3, 2022
    Assignees: National University Corporation Tokyo Medical and Dental University, TDK CORPORATION
    Inventors: Shigenori Kawabata, Takato Fukui, Tomohiko Shibuya
  • Publication number: 20220031276
    Abstract: An image processing apparatus includes a processor programmed to obtain a first radiation image of a subject captured from a first direction, obtain a second radiation image of the subject captured from a second direction that intersects the first direction, and either correct one of the first radiation image and the second radiation image based on positional information of a device for capturing the one of the first radiation image and the second radiation image, or correct another one of the first radiation image and the second radiation image based on information on a position of a specific region of the subject obtained from the one of the first radiation image and the second radiation image.
    Type: Application
    Filed: July 16, 2021
    Publication date: February 3, 2022
    Applicants: Ricoh Company, Ltd., National University Corporation Tokyo Medical and Dental University
    Inventors: Taishi WATANABE, Akira Kinoshita, Masahiro Takada, Shigenori Kawabata
  • Patent number: 11138746
    Abstract: A diagnostic support system includes a spinal cord/spinal nerve evoked magnetic field data acquisition device configured to acquire spinal cord/spinal nerve evoked magnetic field data and a medical image information acquisition device configured to acquire first medical image information having each pixel associated with a corresponding pixel of visualized data of the spinal cord/spinal nerve evoked magnetic field data. The diagnostic support system superimposes the visualized data of the spinal cord/spinal nerve evoked magnetic field data on second medical image information based on information included in the first medical image information.
    Type: Grant
    Filed: June 13, 2018
    Date of Patent: October 5, 2021
    Assignees: Ricoh Company, Ltd., NATIONAL UNIVERSITY CORPORATION TOKYO MEDICAL AND DENTAL UNIVERSITY
    Inventors: Akira Kinoshita, Shigenori Kawabata, Masahiro Takada, Kazuya Niyagawa
  • Publication number: 20210290143
    Abstract: A bioelectric current estimation method includes acquiring position information of a nerve in a measurement target region of a subject for which magnetic data is measured with a magnetic sensor, the position information of the nerve being acquired based on a nerve image included in a morphological image of the measurement target region; acquiring a positional relationship between a position of the nerve and a position of the magnetic sensor, based on the acquired position information of the nerve and position information of the magnetic sensor when the magnetic sensor is positioned to face the measurement target region; and estimating a neural activity current, which is generated in association with neural activity of the subject, based on the acquired positional relationship and the magnetic data of the measurement target region measured by the magnetic sensor.
    Type: Application
    Filed: March 18, 2021
    Publication date: September 23, 2021
    Applicants: Ricoh Company, Ltd., National University Corporation Tokyo Medical and Dental University
    Inventors: Taishi WATANABE, Shigenori KAWABATA, Takanori YOKOTA, Miho AKAZA, Hiroshi DEGUCHI, Sukchan KIM, Yuki MIYANO
  • Patent number: 11076790
    Abstract: A biological information measuring apparatus includes a biomagnetism detector configured to detect biomagnetism of a subject, the biomagnetism detector including a temperature adjustment mechanism; and a radiation detector configured to acquire emitted radiation as digital image data. The radiation detector is disposed between a measurement region of the subject and the biomagnetism detector.
    Type: Grant
    Filed: September 26, 2017
    Date of Patent: August 3, 2021
    Assignees: National University Corporation Tokyo Medical and Dental University, Ricoh Company, Ltd.
    Inventors: Shigenori Kawabata, Taishi Watanabe
  • Publication number: 20210158780
    Abstract: A biometric information display device includes a display controller configured to display a morphological image indicative of a morphology of a subject, on a display, an input controller configured to receive a designation of a specified position on the morphological image, a pathway generating section configured to generate a pathway based on the specified position on the morphological image, and a current extracting section configured to extract current components at a plurality of positions along the pathway, based on current information reconstructed based on magnetic field measurement data generated by the subject. The display controller displays the current components extracted along the pathway on the display.
    Type: Application
    Filed: November 20, 2020
    Publication date: May 27, 2021
    Applicants: Ricoh Company, Ltd., National University Corporation Tokyo Medical and Dental University
    Inventors: Yoichiro TAKAHASHI, Taishi WATANABE, Shigenori KAWABATA