Patents by Inventor Junichi USHIBA

Junichi USHIBA 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: 11957475
    Abstract: A biometric information processing device (1) includes a brain wave detecting unit (10), a control unit (20), and a movement assisting unit (30). The brain wave detecting unit (10) detects biometric information in at least one brain region from among a plurality of brain regions that are selectable in accordance with a body part that is a target of function recovery or function improvement. The control unit (20) determines, based on the detected biometric information, at least one activity state in the brain including the location of the brain region(s) that is (are) activated in a subject while attempting to move the body part, and an activation level of such activated brain region(s). When the control unit (20) determines that the at least one activated state of the brain satisfies a predetermined condition, the movement assisting unit (30) executes a predetermined motion to assist movement of the body part.
    Type: Grant
    Filed: May 15, 2017
    Date of Patent: April 16, 2024
    Assignee: KEIO UNIVERSITY
    Inventors: Junichi Ushiba, Fumio Liu, Kenichi Takasaki, Atsuko Nishimoto, Miho Hiramoto, Katsuhiro Mizuno, Meigen Liu, Toshiyuki Fujiwara
  • Publication number: 20200329991
    Abstract: An electroencephalogram measurement system includes an acquisition unit, a decision unit, and an output unit. The acquisition unit acquires electroencephalogram information representing an electroencephalogram obtained by an electrode unit placed on a region of interest that forms part of a subject's head. The decision unit makes a decision, based on the electroencephalogram information acquired by the acquisition unit, whether or not there are any artifacts. The output unit outputs the decision made by the decision unit.
    Type: Application
    Filed: October 19, 2018
    Publication date: October 22, 2020
    Inventors: Junichi USHIBA, Teruhisa OKUYA, Koji MORIKAWA, Mikio IWAKAWA, Miho HIRAMOTO, Kohei OKUYAMA
  • Publication number: 20200253499
    Abstract: An electroencephalogram decision system determines, when finding electroencephalogram information representing an electroencephalogram obtained by an electrode unit placed on a region of interest that forms part of a subject's head satisfying a predetermined condition, that a target electroencephalogram, which is an electroencephalogram with a characteristic variation, should have been produced. The predetermined condition is selected from of detection conditions including a first type of condition and a second type of condition. The first type of condition specifies that a decision should be made, based on a component falling within a single frequency band included in the electroencephalogram represented by the electroencephalogram information, whether or not the target electroencephalogram has been produced.
    Type: Application
    Filed: October 19, 2018
    Publication date: August 13, 2020
    Inventors: Junichi USHIBA, Koji MORIKAWA
  • Publication number: 20200237250
    Abstract: A biometric information processing device (1) includes a brain wave detecting unit (10), a control unit (20), and a movement assisting unit (30). The brain wave detecting unit (10) detects biometric information in at least one brain region from among a plurality of brain regions that are selectable in accordance with a body part that is a target of function recovery or function improvement. The control unit (20) determines, based on the detected biometric information, at least one activity state in the brain including the location of the brain region(s) that is (are) activated in a subject while attempting to move the body part, and an activation level of such activated brain region(s). When the control unit (20) determines that the at least one activated state of the brain satisfies a predetermined condition, the movement assisting unit (30) executes a predetermined motion to assist movement of the body part.
    Type: Application
    Filed: May 15, 2017
    Publication date: July 30, 2020
    Inventors: Junichi USHIBA, Fumio LIU, Kenichi TAKASAKI, Atsuko NISHIMOTO, Miho HIRAMOTO, Katsuhiro MIZUNO, Meigen LIU, Toshiyuki FUJIWARA
  • Patent number: 10668281
    Abstract: In order to make advanced gait training easy and effective, an electrical spinal cord stimulator for gait training used in gait training for those who have difficulty in walking due to hemiplegia includes: first and second electrodes attached to a rehabilitant; a detector which detects a gait-related physical movement of the rehabilitant; and an electrical sensory nerve stimulation generator which generates, according to a detection result of the detector, electrical stimulation to be applied through the first and second electrodes to a nerve root of a sensory nerve which communicates with a spinal cord.
    Type: Grant
    Filed: March 14, 2016
    Date of Patent: June 2, 2020
    Assignees: Tokai University Educational System, Keio University
    Inventors: Toshiyuki Fujiwara, Yoshihisa Masakado, Junichi Ushiba
  • Patent number: 10342475
    Abstract: In a threshold estimation apparatus, a setting unit sets an initial intensity value for each electrode. A selection unit randomly selects an electrode. A stimulation unit, via the selected electrode, stimulates a living subject at an intensity set for the electrode. A detection unit detects the presence or absence of a response evoked by the stimulation. An update unit reduces or increases the intensity associated with the selected electrode, based on the presence or absence of the response evoked by the stimulation. An estimation unit, if the thus updated intensity associated with each electrode satisfies a convergence condition, estimates a convergence value as a threshold associated with the electrode. The threshold estimation apparatus repeats these processes until thresholds associated with all electrodes are estimated. If the same electrode was consecutively selected, the time interval between a stimulation and a subsequent stimulation is adjusted.
    Type: Grant
    Filed: August 7, 2015
    Date of Patent: July 9, 2019
    Assignee: RIKEN
    Inventors: Atsushi Iriki, Junichi Ushiba, Mitsuaki Takemi
  • Publication number: 20190192054
    Abstract: A peg (3) is placed on a peg board (2) by a subject. A detection unit (32) detects a contact state between a peg body (31) and a body portion of the subject. A signal transmission unit (33) transmits a signal indicative of a detection result from the detection unit (32).
    Type: Application
    Filed: August 21, 2017
    Publication date: June 27, 2019
    Applicants: NIHON KOHDEN CORPORATION, KEIO UNIVERSITY
    Inventors: Junichi USHIBA, Shohei TSUCHIMOTO, Meigen LIU, Michiyuki KAWAKAMI, Tatsuo YOSHIDA, Yoshinobu ONO, Yoshiyuki FUJITA, Kaoru IMAJO, Fumihiko MURAYAMA
  • Publication number: 20180071528
    Abstract: In order to make advanced gait training easy and effective, an electrical spinal cord stimulator for gait training used in gait training for those who have difficulty in walking due to hemiplegia includes: first and second electrodes attached to a rehabilitant; a detector which detects a gait-related physical movement of the rehabilitant; and an electrical sensory nerve stimulation generator which generates, according to a detection result of the detector, electrical stimulation to be applied through the first and second electrodes to a nerve root of a sensory nerve which communicates with a spinal cord.
    Type: Application
    Filed: March 14, 2016
    Publication date: March 15, 2018
    Inventors: Toshiyuki Fujiwara, Yoshihisa Masakado, Junichi Ushiba
  • Publication number: 20160128620
    Abstract: In a threshold estimation apparatus, a setting unit sets an initial intensity value for each electrode. A selection unit randomly selects an electrode. A stimulation unit, via the selected electrode, stimulates a living subject at an intensity set for the electrode. A detection unit detects the presence or absence of a response evoked by the stimulation. An update unit reduces or increases the intensity associated with the selected electrode, based on the presence or absence of the response evoked by the stimulation. An estimation unit, if the thus updated intensity associated with each electrode satisfies a convergence condition, estimates a convergence value as a threshold associated with the electrode. The threshold estimation apparatus repeats these processes until thresholds associated with all electrodes are estimated. If the same electrode was consecutively selected, the time interval between a stimulation and a subsequent stimulation is adjusted.
    Type: Application
    Filed: August 7, 2015
    Publication date: May 12, 2016
    Inventors: Atsushi IRIKI, Junichi USHIBA, Mitsuaki TAKEMI