Patents by Inventor Ryohei Hasegawa

Ryohei Hasegawa 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: 10786173
    Abstract: Provided are a method, a device, a system, and a program for evaluating similarity of brain activity with respect to an object to be evaluated, using data obtained by a simple measurement of brain waves. Brain wave data related to cognitive processing with respect to a plurality of sensory stimuli are dimensionally compressed, and a distribution of the object to be evaluated is displayed on a two-dimensional plane or three-dimensionally. In this way, similarity of brain information with respect to the plurality of sensory stimuli is evaluated, and the similarity is visualized. The brain wave data related to the cognitive processing include brain wave data upon selection of a stimulus as a target, and brain wave data caused by a non-target stimulus event.
    Type: Grant
    Filed: November 16, 2015
    Date of Patent: September 29, 2020
    Assignee: NATIONAL INSTITUTE OF ADVANCED INDUSTRIAL SCIENCE AND TECHNOLOGY
    Inventors: Ryohei Hasegawa, Tomomi Fujimura
  • Publication number: 20200037911
    Abstract: An intention decoding apparatus and a decoding method that quickly and precisely analyze brain waves for decoding an intention decision without requiring an advance brain wave measurement for, for example, a calibration step, and an intention conveyance assist apparatus, an intention conveyance assist system, and a program using a decoding result of the intention decision in the brain. The intention decoding apparatus that analyzes brain waves to decode an intention performs a process to examine a dispersion by classifying brain wave data of event-related potentials corresponding to a plurality of stimulus events into any one stimulus event and the other stimulus events among the plurality of stimulus events, on all the stimulus events, and identifies a classification where the dispersion becomes maximum to identify the one stimulus event in the classification as the intention. The intention conveyance assist apparatus includes a presentation unit that presents a decoding result.
    Type: Application
    Filed: April 6, 2017
    Publication date: February 6, 2020
    Applicant: NATIONAL INSTITUTE OF ADVANCED INDUSTRIAL SCIENCE AND TECHNOLOGY
    Inventor: Ryohei Hasegawa
  • Patent number: 10508417
    Abstract: A construction information display device configured to display construction information includes: a display unit configured to display at least a partial distribution map indicating a current landform and a design landform; an input unit through which a target surface is selected from the design landform; and a display processing unit configured to, when the target surface is selected through the input unit, display a range of the selected target surface while visibly displaying the partial distribution map within the selected target surface.
    Type: Grant
    Filed: December 18, 2015
    Date of Patent: December 17, 2019
    Assignee: KOMATSU LTD.
    Inventors: Ryohei Hasegawa, Kenji Ohiwa, Satoru Shintani
  • Patent number: 10498907
    Abstract: A medium stores a program. The program causes a computer to: acquire relative area information which at least indicates a relative position of a reference area relative to a reference document and a relative size of the reference area relative to a size of the reference document; acquire target image data which indicates a target image including a document; identify a target area in the target image by use of the target image data, the target area being in the relative position, which is indicated by the relative area information, relative to the target image, the target area having the relative size, which is indicated by the relative area information, relative to the size of the target image; analyze an area, in the target image, including the target area; and output image data based on the target image data.
    Type: Grant
    Filed: December 26, 2017
    Date of Patent: December 3, 2019
    Assignee: BROTHER KOGYO KABUSHIKI KAISHA
    Inventors: Tomohiko Hasegawa, Akidi Yoshida, Ryohei Ozawa
  • Publication number: 20190351128
    Abstract: An extracorporeal circulation apparatus has a blood reservoir temporarily storing blood and a presence information acquisition unit to detect presence or absence of blood at respective wall locations in a two-dimensional array. A control unit determines the position of a blood surface on the basis of consecutive elements in the array having detected blood along at least one of a first direction parallel to the blood surface and a second direction perpendicular to the blood surface.
    Type: Application
    Filed: August 5, 2019
    Publication date: November 21, 2019
    Inventors: Tomoaki Hashimoto, Tsuyoshi Hasegawa, Ryohei Katsuki, Yuuki Hara
  • Patent number: 10470690
    Abstract: Provided are a highly confidential personal authentication device which uses brain waves, a personal authentication method, and a personal authentication system and program. The authentication device using brain waves is provided with: an electroencephalograph; and a processing unit which, with respect to brain waves with respect to a plurality of stimulus events obtained by the electroencephalograph, determines a discrimination score according to a discrimination model for estimating brain information for each authentication candidate accumulated in advance, based on a discrimination-model-to-discrimination-model comparison of the discrimination score, identifies and authenticates an authentication candidate who provided the model. The identifying of the authentication candidate based on the discrimination score in the processing unit is based on the discrimination score and/or decoding accuracy determined from the discrimination score.
    Type: Grant
    Filed: November 17, 2015
    Date of Patent: November 12, 2019
    Assignee: NATIONAL INSTITUTE OF ADVANCED INDUSTRIAL SCIENCE AND TECHNOLOGY
    Inventors: Ryohei Hasegawa, Yukako Hasegawa
  • Patent number: 10383540
    Abstract: Provided are a cognitive function evaluation apparatus, a cognitive function evaluation method and system, and a program that can be implemented for non-handicapped persons and persons with severe motor impairment. The apparatus according to the present invention is an apparatus for evaluating cognitive function provided with a processing unit that analyzes and processes a brain wave caused by a plurality of stimulus events including a target and a non-target; estimates a stimulus event selected as the target from the plurality of stimulus events; determines a discrimination score or decoding accuracy; and evaluates cognitive function on the basis of a value of one or more of the discrimination score, the decoding accuracy, any of time courses, and decoding speed.
    Type: Grant
    Filed: December 16, 2014
    Date of Patent: August 20, 2019
    Assignee: NATIONAL INSTITUTE OF ADVANCED INDUSTRIAL SCIENCE AND TECHNOLOGY
    Inventor: Ryohei Hasegawa
  • Publication number: 20170340230
    Abstract: Provided are a method, a device, a system, and a program for evaluating similarity of brain activity with respect to an object to be evaluated, using data obtained by a simple measurement of brain waves. Brain wave data related to cognitive processing with respect to a plurality of sensory stimuli are dimensionally compressed, and a distribution of the object to be evaluated is displayed on a two-dimensional plane or three-dimensionally. In this way, similarity of brain information with respect to the plurality of sensory stimuli is evaluated, and the similarity is visualized. The brain wave data related to the cognitive processing include brain wave data upon selection of a stimulus as a target, and brain wave data caused by a non-target stimulus event.
    Type: Application
    Filed: November 16, 2015
    Publication date: November 30, 2017
    Inventors: Ryohei HASEGAWA, Tomomi FUJIMURA
  • Publication number: 20170325720
    Abstract: Provided are a highly confidential personal authentication device which uses brain waves, a personal authentication method, and a personal authentication system and program. The authentication device using brain waves is provided with: an electroencephalograph; and a processing unit which, with respect to brain waves with respect to a plurality of stimulus events obtained by the electroencephalograph, determines a discrimination score according to a discrimination model for estimating brain information for each authentication candidate accumulated in advance, based on a discrimination-model-to-discrimination-model comparison of the discrimination score, identifies and authenticates an authentication candidate who provided the model. The identifying of the authentication candidate based on the discrimination score in the processing unit is based on the discrimination score and/or decoding accuracy determined from the discrimination score.
    Type: Application
    Filed: November 17, 2015
    Publication date: November 16, 2017
    Inventors: Ryohei HASEGAWA, Yukako HASEGAWA
  • Patent number: 9798796
    Abstract: A device, a system, a method, and a program are realized which are capable of predicting the order of the feeling and the preference of a subject to products which are the research objects, for marketing research and others. The images of a plurality of research objects are presented a plurality of times as visual stimuli in order to measure the brain wave. A brain wave data of an event related electrical potential for the research objects which the subject has selected as a target immediately after the stimulus presentation, is processed by a linear discriminant analysis to quantitatively represent with a single index, in order to rank the research objects.
    Type: Grant
    Filed: October 12, 2012
    Date of Patent: October 24, 2017
    Assignee: National Institute of Advanced Industrial Science and Technology
    Inventor: Ryohei Hasegawa
  • Publication number: 20170175364
    Abstract: A construction information display device configured to display construction information includes: a display unit configured to display at least a partial distribution map indicating a current landform and a design landform; an input unit through which a target surface is selected from the design landform; and a display processing unit configured to, when the target surface is selected through the input unit, display a range of the selected target surface while visibly displaying the partial distribution map within the selected target surface.
    Type: Application
    Filed: December 18, 2015
    Publication date: June 22, 2017
    Applicant: KOMATSU LTD.
    Inventors: Ryohei Hasegawa, Kenji Ohiwa, Satoru Shintani
  • Publication number: 20170007147
    Abstract: Provided are a cognitive function evaluation apparatus, a cognitive function evaluation method and system, and a program that can be implemented for non-handicapped persons and persons with severe motor impairment. The apparatus according to the present invention is an apparatus for evaluating cognitive function provided with a processing unit that analyzes and processes a brain wave caused by a plurality of stimulus events including a target and a non-target; estimates a stimulus event selected as the target from the plurality of stimulus events; determines a discrimination score or decoding accuracy; and evaluates cognitive function on the basis of a value of one or more of the discrimination score, the decoding accuracy, any of time courses, and decoding speed.
    Type: Application
    Filed: December 16, 2014
    Publication date: January 12, 2017
    Inventor: Ryohei HASEGAWA
  • Patent number: 9230065
    Abstract: According to a conventional BMI technology for controlling external equipment or transmitting an intention to another person by focusing on a biosignal such as brain activity, there has been the problem that a large-sized apparatus is required, the operation method is complex from the user's viewpoint, and noise is large. The present invention provides an apparatus and method such that an intention in the brain can be analyzed with high accuracy and at high speed and transmitted in real-time. A communication assist apparatus according to the present invention comprises an apparatus for presenting a visual stimulus on a display screen and the like, and a processing apparatus for processing brain wave data from an electroencephalograph that measures a brain wave after stimulus presentation by the presenting apparatus.
    Type: Grant
    Filed: August 30, 2011
    Date of Patent: January 5, 2016
    Assignee: National Institute of Advanced Industrial Science and Technology
    Inventors: Ryohei Hasegawa, Yukako Hasegawa, Hideaki Takai
  • Publication number: 20150026195
    Abstract: A device, a system, a method, and a program are realized which are capable of predicting the order of the feeling and the preference of a subject to products which are the research objects, for marketing research and others. The images of a plurality of research objects are presented a plurality of times as visual stimuli in order to measure the brain wave. A brain wave data of an event related electrical potential for the research objects which the subject has selected as a target immediately after the stimulus presentation, is processed by a linear discriminant analysis to quantitatively represent with a single index, in order to rank the research objects.
    Type: Application
    Filed: October 12, 2012
    Publication date: January 22, 2015
    Inventor: Ryohei Hasegawa
  • Publication number: 20130158883
    Abstract: According to a conventional BMI technology for controlling external equipment or transmitting an intention to another person by focusing on a biosignal such as brain activity, there has been the problem that a large-sized apparatus is required, the operation method is complex from the user's viewpoint, and noise is large. The present invention provides an apparatus and method such that an intention in the brain can be analyzed with high accuracy and at high speed and transmitted in real-time. A communication assist apparatus according to the present invention comprises an apparatus for presenting a visual stimulus on a display screen and the like, and a processing apparatus for processing brain wave data from an electroencephalograph that measures a brain wave after stimulus presentation by the presenting apparatus.
    Type: Application
    Filed: August 30, 2011
    Publication date: June 20, 2013
    Applicant: National Institute of Advanced Industrial Science and Technology
    Inventors: Ryohei Hasegawa, Yukako Hasegawa, Hideaki Takai