Patents Assigned to Harada Electronics Industry
  • Patent number: 11872407
    Abstract: An apparatus for generating signal waveform for biological stimulation capable of generating and outputting a biological stimulation signal wave, from a signal existing in the external environment, reflected from the signal, which includes a signal input unit for inputting an external signal from the external environment and an output waveform generation unit for generating and outputting a first biological stimulation signal wave modulated with at least one of a frequency component, an envelope component and an amplitude component included in the external signal acquired by the signal input unit and/or synchronized with an output timing of the external signal.
    Type: Grant
    Filed: June 8, 2018
    Date of Patent: January 16, 2024
    Assignees: NIPRO CORPORATION, HARADA ELECTRONICS INDUSTRY CO., LTD.
    Inventors: Toshizo Ishikawa, Shigenori Tominaga, Yoshihiko Sano, Masahide Harada
  • Patent number: 11484224
    Abstract: A triaxial acceleration sensor and a triaxial angular rate sensor are mounted on each of the lower limb portions on both sides of one joint among joints constituting a part of one lower limb of a subject. The acceleration and angular rate of each lower limb portion are measured by the triaxial acceleration sensor and triaxial angular rate sensor while the subject is walking. The orientations of each lower limb portion while walking are calculated on the basis of the measured acceleration and angular rate. A three-dimensional model including the motion trajectory of one joint is constructed by linking the lower limb portions in the calculated orientation to each other. The angle formed by the acceleration vector of one joint when the heel strikes the ground to the movement trajectory in the sagittal plane is calculated as a gait parameter.
    Type: Grant
    Filed: July 22, 2016
    Date of Patent: November 1, 2022
    Assignees: NIPRO CORPORATION, HARADA ELECTRONICS INDUSTRY CO., LTD.
    Inventors: Shigeru Tadano, Ryo Takeda, Harukazu Tohyama, Yoshihiko Sano, Masahide Harada
  • Publication number: 20210007623
    Abstract: A biomedical electrode including: an attachment sheet being elastically stretchable and contractible with an electrically insulating property on a back surface side, an adhesive surface suitable for attachment to the skin; a plurality of electrodes located apart from one another on the back surface side of the attachment sheet and exposed on the back surface side; a plurality of connecting parts located at a central part on the back surface side of the attachment sheet and covered with electrical insulation while being exposed toward a front surface side through openings of the attachment sheet; and electrode connecting wires located on the back surface side of the attachment sheet and covered with electrical insulation that electrically connect respective ones of the plurality of electrodes with corresponding ones of the plurality of connecting parts, wherein at least one of the electrode connecting wires extends in a stretchable, contractible, and bendable manner.
    Type: Application
    Filed: March 13, 2019
    Publication date: January 14, 2021
    Applicants: NIPRO CORPORATION, HARADA ELECTRONICS INDUSTRY CO., LTD.
    Inventors: Yoshihiko SANO, Masahide HARADA
  • Patent number: 10702182
    Abstract: A myoelectric sensor for detecting myoelectric signals which accompany body movement includes: a wearing band that is elastic, expandable, and circular, and that is worn around a limb to surround the limb tightly; myoelectric detection units a plurality of which are disposed in the circumferential direction on the wearing band with intervals therebetween so as to cause each of a plurality of myoelectric detection electrodes to be in close contact with the surface of the limb, and which detect myoelectric signals from corresponding positions on the limb using the myoelectric detection electrodes; and connection cables that electrically connect mutually adjacent myoelectric detection units and thereby transmit the myoelectric signals. The connection cables each include a bent portion, the bent shape of which changes in response to changes in the distance between the mutually adjacent myoelectric detection units.
    Type: Grant
    Filed: January 12, 2016
    Date of Patent: July 7, 2020
    Assignees: NIPRO CORPORATION, HARADA ELECTRONICS INDUSTRY CO., LTD.
    Inventors: Shigeru Tadano, Yoshihiko Sano, Masahide Harada
  • Publication number: 20200197717
    Abstract: An apparatus for generating signal waveform for biological stimulation capable of generating and outputting a biological stimulation signal wave, from a signal existing in the external environment, reflected from the signal, which includes a signal input unit for inputting an external signal from the external environment and an output waveform generation unit for generating and outputting a first biological stimulation signal wave modulated with at least one of a frequency component, an envelope component and an amplitude component included in the external signal acquired by the signal input unit and/or synchronized with an output timing of the external signal.
    Type: Application
    Filed: June 8, 2018
    Publication date: June 25, 2020
    Applicants: NIPRO CORPORATION, HARADA ELECTRONICS INDUSTRY CO., LTD.
    Inventors: Toshizo ISHIKAWA, Shigenori TOMINAGA, Yoshihiko SANO, Masahide HARADA
  • Patent number: 10203281
    Abstract: A transmitted light intensity measurement unit for measuring a concentration of fluid flowing through a duct comprises: a light source for supplying light into the duct from a light supply part on a surface of the duct; a light receiving element for receiving the light, which has been passed from the light supply part through the duct wall and the fluid inside the duct, at a light receiving part located on an opposite side in a diametrical direction of the duct relative to the light supply part, and outputs a signal indicating an intensity of the light; and a light-transmissive member disposed on at least one light path among a light pass between the light source and the light supply part and a light pass between the light receiving element and the light receiving part, abutting and closely contacting the duct wall by an elastic deformation of the duct wall.
    Type: Grant
    Filed: May 27, 2016
    Date of Patent: February 12, 2019
    Assignees: NIPRO CORPORATION, HARADA ELECTRONICS INDUSTRY CO., LTD.
    Inventors: Yoshihiko Sano, Masahide Harada
  • Publication number: 20180220935
    Abstract: A triaxial acceleration sensor and a triaxial angular rate sensor are mounted on each of the lower limb portions on both sides of one joint among joints constituting a part of one lower limb of a subject. The acceleration and angular rate of each lower limb portion are measured by the triaxial acceleration sensor and triaxial angular rate sensor while the subject is walking. The orientations of each lower limb portion while walking are calculated on the basis of the measured acceleration and angular rate. A three-dimensional model including the motion trajectory of one joint is constructed by linking the lower limb portions in the calculated orientation to each other. The angle formed by the acceleration vector of one joint when the heel strikes the ground to the movement trajectory in the sagittal plane is calculated as a gait parameter.
    Type: Application
    Filed: July 22, 2016
    Publication date: August 9, 2018
    Applicants: NIPRO CORPORATION, HARADA ELECTRONICS INDUSTRY CO., LTD.
    Inventors: Shigeru TADANO, Ryo TAKEDA, Harukazu TOHYAMA, Yoshihiko SANO, Masahide HARADA
  • Patent number: 4984519
    Abstract: A delay circuit for use in an electric blasting system including a capacitor for storing electric energy supplied from an electric blaster, an actuation circuit for detecting the stop of voltage supply from the blaster to generate an actuation signal, a circuit for generating clock pulses, a circuit for counting a predetermined number of clock pulses in response to the actuation signal to generate an igniting signal, and a switching circuit for responding to the igniting signal to discharge the electric energy stored in the capacitor through an igniting resistor, the actuation circuit having a zener diode with a threshold voltage. When the voltage supply from the blaster is stopped and the voltage across the zener diode becomes lower than the threshold voltage, the zener diode is cut-off to generate the actuation signal.
    Type: Grant
    Filed: February 13, 1989
    Date of Patent: January 15, 1991
    Assignees: Nippon Oil and Fats Company, Limited, Harada Electronics Industry, Hitachi Ltd.
    Inventors: Koji Ochi, Masahide Harada, Kunio Kobayashi
  • Patent number: 4899658
    Abstract: An electric detonator of the delay type including a housing having a metal portion and an insulating portion, a pair of leg wires extending outside through the housing, a delay circuit connected across the leg wires and generating an ignition current at a predetermined timing, and an igniting resistor connected to an output terminal of the delay circuit and one of the leg wires. In order to check the resistance value of the igniting resistor even after the detonator has been assembled, a by-pass resistor is connected between the other of the leg wires and a junction point between the delay circuit and the igniting resistor. A small measuring current is conducted through the igniting resistor via the by-pass resistor to generate a voltage drop across the igniting resistor. This voltage drop is measured by connecting a voltage measuring device between the leg wire and the metal portion of the housing.
    Type: Grant
    Filed: October 7, 1988
    Date of Patent: February 13, 1990
    Assignees: Nippon Oil and Fats Company, Limited, Harada Electronics Industry
    Inventors: Koji Ochi, Masahide Harada
  • Patent number: 4893564
    Abstract: An electric detonator of delay type including leg wires connectable to bus wires, a capacitor connected across the leg wires for storing the electric energy supplied from an electric blaster via the leg wires, a delay circuit connected across the leg wires and generating an igniting signal at a predetermined timing, a switching circuit and an igniting resistor connected to the switching circuit, whereby the switching circuit is made conductive in response to the igniting signal to discharge the electric energy stored in the capacitor through the igniting resistor to explode the detonator. In order to operate the detonator reliably and safely, there are provided low and high voltage protection circuits for discharging the electric energy therethrough when the power supply voltage is out of a predetermined normal operation range.
    Type: Grant
    Filed: October 12, 1988
    Date of Patent: January 16, 1990
    Assignees: Nippon Oil & Fats Co., Ltd., Harada Electronics Industry
    Inventors: Koji Ochi, Masahide Harada
  • Patent number: 4825765
    Abstract: A delay type electric detonating primer for use in a multiple-step blasting system including a capacitor for storing electric changes supplied from an electric blaster via bus wires and leg wires, an actuation circuit connected across the capacitor for generating an actuation signal when an energy supply from the electric blaster is stopped, a clock pulse generating circuit having a crystal oscillator and being energized with energy stored in the capacitor to produce clock pulses, a counting circuit which is initiated to count the clock pulses in response to the actuation signal, and generates an ignition signal when the counter has counted the predetermined number of clock pulses, and a switching circuit for discharging electric charges stored in the capacitor through an igniting resistor in response to the ignition signal.
    Type: Grant
    Filed: September 17, 1987
    Date of Patent: May 2, 1989
    Assignees: Nippon Oil and Fats Co., Ltd., Harada Electronics Industry
    Inventors: Koji Ochi, Masahide Harada