Patents Assigned to Mitsubishi Electric Engineering Company Limited
  • Publication number: 20190356170
    Abstract: A receiving antenna (3) receiving power transferred from a transmitting antenna (2) is provided. Further, a receiving circuit (4) controlling an input impedance in accordance with mutual inductance between the transmitting antenna and the receiving antenna is provided.
    Type: Application
    Filed: March 10, 2017
    Publication date: November 21, 2019
    Applicant: Mitsubishi Electric Engineering Company, Limited
    Inventors: Yoshiyuki AKUZAWA, Hiroshi MATSUMORI
  • Publication number: 20190341814
    Abstract: There are included: a switching parameter detecting unit (21) that detects a switching voltage of a switching element (Q1); and an abnormality detecting unit (a first comparing unit (264a) and an abnormality determining unit (265)) that detects an abnormality caused by foreign matter, on the basis of a result of the detection by the switching parameter detecting unit (21).
    Type: Application
    Filed: February 8, 2017
    Publication date: November 7, 2019
    Applicant: Mitsubishi Electric Engineering Company, Limited
    Inventors: Yoshiyuki AKUZAWA, Hirokazu SUZUKI
  • Patent number: 10432027
    Abstract: A movable portion transmission system includes a transmitter and receiver having a transmission antenna to perform wireless transmission of electric power supplied thereto and a reception antenna to receive the electric power from the transmission antenna, a transmission power supply circuit to establish a resonance condition of the transmission antenna, and a reception power supply circuit to establish a resonance condition of the reception antenna. The transmission antenna includes a transmission side coil in a spiral shape which is arranged while being centered at the axial center of a rotary member, and the reception antenna includes a reception side coil in a spiral shape which is arranged with a gap therefrom to the transmission side coil while being centered at the axial center of the rotary member.
    Type: Grant
    Filed: May 13, 2014
    Date of Patent: October 1, 2019
    Assignee: MITSUBISHI ELECTRIC ENGINEERING COMPANY, LIMITED
    Inventors: Yoshiyuki Akuzawa, Kiyohide Sakai, Toshihiro Ezoe, Yuki Ito
  • Patent number: 10361592
    Abstract: A transmission/reception unit including a transmitting antenna and a receiving antenna for carrying out a wireless power transmission in cooperation with the transmitting antenna. Each of the transmitting antenna and the receiving antenna includes a coil which has a shape in which a portion through which a current flows in a direction extends along another portion through which a current flows in an opposite direction.
    Type: Grant
    Filed: August 3, 2015
    Date of Patent: July 23, 2019
    Assignee: Mitsubishi Electric Engineering Company, Limited
    Inventors: Yoshiyuki Akuzawa, Yuki Ito
  • Patent number: 10243413
    Abstract: Disclosed is a resonance type power transmission device in which a plurality of systems having respective transmitters and receivers 3 are arranged opposite to each other and each of the systems transmits electric power having a single frequency, each of the transmitters and receivers having a transmission antenna 5 and a reception antenna 6 which are disposed so as to be fitted to each other, and in which a magnetic sheet 7 is disposed in a portion between the systems, opposite to the transmitters and receivers 3 at a distance, from each of the transmitters and receivers 3, of 1/10 or more of the minimum of the outer diameters of the transmission antenna 5 and the reception antenna 6.
    Type: Grant
    Filed: January 28, 2015
    Date of Patent: March 26, 2019
    Assignee: Mitsubishi Electric Engineering Company, Limited
    Inventors: Yoshiyuki Akuzawa, Yuki Ito, Hiroshi Matsumori
  • Publication number: 20190081711
    Abstract: A carrier wave generating unit for generating a carrier wave signal; a modulating unit for generating a modulated wave signal by performing amplitude modulation on the carrier wave signal generated by the carrier wave generating unit with an audio signal; an adding unit for adding the carrier wave signal generated by the carrier wave generating unit and the modulated wave signal generated by the modulating unit to generate a signal; an ultrasonic emitter for emitting the signal generated by the adding unit, and an ultrasonic emitter arranged on the central axis of the ultrasonic emitter and ahead of the emitting surface of the ultrasonic emitter, for emitting the carrier wave signal generated by the carrier wave generating unit in the same direction as the emitting direction of the ultrasonic emitter are included, wherein the phase of the carrier wave signal emitted by the ultrasonic emitter is opposite to that of the carrier wave signal included in the signal emitted by the ultrasonic emitter.
    Type: Application
    Filed: January 27, 2017
    Publication date: March 14, 2019
    Applicant: Mitsubishi Electric Engineering Company, Limited
    Inventor: Shunji YOSHIDA
  • Patent number: 10158254
    Abstract: A resonant coupling power transmission system includes a resonance type power transmission device 1 having a resonance type power supply 11 to supply power, and a resonance type transmission antenna 13 to transmit the power supplied by the resonance type power supply 11, and a resonance type power reception device 2 having a resonance type reception antenna 21 to receive the power transmitted by the resonance type transmission antenna 13, and a reception circuit 23 to supply the power received by the resonance type reception antenna 21 to a load, and the characteristic impedance of each of the functional units is set in such a way that there is provided a correlation among the resonance characteristic value of the resonance type power supply 11, that of the resonance type transmission antenna 13, and that of the resonance type power reception device 2.
    Type: Grant
    Filed: September 2, 2014
    Date of Patent: December 18, 2018
    Assignee: Mitsubishi Electric Engineering Company, Limited
    Inventors: Yoshiyuki Akuzawa, Kiyohide Sakai, Toshihiro Ezoe
  • Patent number: 10112077
    Abstract: An electric training apparatus is configured to apply, by a load motor, a load on a rotating body configured to apply a load on an exercising person, detect an exercise physiological response value of the exercising person and a number of revolutions of the rotating body, perform control for gradually increasing the load of the load motor toward a set load upper limit value so that a detection result of the exercise physiological response value of the exercising person approaches a target exercise physiological response value set in advance, and change, before an exercise or during the exercise by the exercising person, the load upper limit value in response to a control command input based on a state of the exercising person, a state of the control, and a perceived exertion scale for the exercising person.
    Type: Grant
    Filed: February 28, 2017
    Date of Patent: October 30, 2018
    Assignee: MITSUBISHI ELECTRIC ENGINEERING COMPANY, LIMITED
    Inventors: Haruki Itoh, Masataku Ichikawa, Isao Mizukura
  • Patent number: 10110071
    Abstract: A configuration includes: resonance-type power source circuits provided for at least two electric paths, each including a power element that performs switching at a high frequency of 2 MHz or more, and a resonant circuit element that causes the power element to perform resonant switching; a phase-control-type matching circuits provided for the respective electric paths, each having a function of controlling a phase difference between output currents of the resonance-type power source circuits and a function of providing matching of resonance conditions between the resonance-type power source circuit and a load; and a combining unit that combines output currents processed by the phase-control-type matching circuits for the respective electric paths.
    Type: Grant
    Filed: September 12, 2014
    Date of Patent: October 23, 2018
    Assignee: Mitsubishi Electric Engineering Company, Limited
    Inventors: Yoshiyuki Akuzawa, Kiyohide Sakai, Toshihiro Ezoe, Kansuke Tsuji
  • Publication number: 20180294680
    Abstract: Disclosed is a resonance type power transmission device in which a plurality of systems having respective transmitters and receivers 3 are arranged opposite to each other and each of the systems transmits electric power having a single frequency, each of the transmitters and receivers having a transmission antenna 5 and a reception antenna 6 which are disposed so as to be fitted to each other, and in which a magnetic sheet 7 is disposed in a portion between the systems, opposite to the transmitters and receivers 3 at a distance, from each of the transmitters and receivers 3, of 1/10 or more of the minimum of the outer diameters of the transmission antenna 5 and the reception antenna 6.
    Type: Application
    Filed: January 28, 2015
    Publication date: October 11, 2018
    Applicant: Mitsubishi Electric Engineering Company, Limited
    Inventors: Yoshiyuki AKUZAWA, Yuki ITO, Hiroshi MATSUMORI
  • Publication number: 20180235479
    Abstract: A kinesitherapy apparatus includes a measuring instrument, a pedaled rotational mechanism, a rotating electrical machine configured to apply an assist load, which is a regenerative load or a power running load, to the pedaled rotational mechanism, and a motion control device. The motion control device performs power running operation of the rotating electrical machine so that a minus assist load is generated in a warm-up period. In a ramp loading period following the warm-up period, the motion control device raises the assist load from the minus assist load, and calculates an anaerobic threshold based on time-series data of oxygen uptake and carbon dioxide emission that are obtained via the measuring instrument.
    Type: Application
    Filed: August 22, 2017
    Publication date: August 23, 2018
    Applicant: MITSUBISHI ELECTRIC ENGINEERING COMPANY LIMITED
    Inventors: Isao MIZUKURA, Tomohiko KISAKA
  • Patent number: 10033227
    Abstract: Disclosed is a resonant type transmission power supply device including a transmission power state detecting circuit 11 to detect a transmission power state of a transmission antenna 2, a foreign object detecting circuit 124 to detect the presence or absence of a foreign object in an electromagnetic field generated from the transmission antenna 2 on the basis of a detection result acquired by the transmission power state detecting circuit 11, and a power control circuit 125 to reduce or stop the supply of electric power to the transmission antenna 2 when foreign object is detected by the foreign object detecting circuit 124.
    Type: Grant
    Filed: December 26, 2013
    Date of Patent: July 24, 2018
    Assignee: Mitsubishi Electric Engineering Company, Limited
    Inventors: Yoshiyuki Akuzawa, Kiyohide Sakai, Toshihiro Ezoe, Yuki Ito
  • Publication number: 20180205264
    Abstract: A transmission/reception unit including a transmitting antenna and a receiving antenna for carrying out a wireless power transmission in cooperation with the transmitting antenna. Each of the transmitting antenna and the receiving antenna includes a coil which has a shape in which a portion through which a current flows in a direction extends along another portion through which a current flows in an opposite direction.
    Type: Application
    Filed: August 3, 2015
    Publication date: July 19, 2018
    Applicant: Mitsubishi Electric Engineering Company, Limited
    Inventors: Yoshiyuki AKUZAWA, Yuki ITO
  • Patent number: 10028238
    Abstract: A transmitting device includes a transmission power supply to output electric power, whose frequency matches a resonance frequency of each of the transmitting antennas, based on input power, plural switches respectively provided for the transmitting antennas, the switches being switchable to connect or disconnect supply lines for supplying the electric power outputted by the transmission power supply to the transmitting antennas, a parameter detector to detect parameters regarding the transmission power supply, the parameter being changed as a receiving antenna gets close to the transmitting antennas, by using a protective function of the transmission power supply, and a switch controller to estimate the position of the receiving antenna from the result of the detection, and to perform switching control on the switches in accordance with the position of the receiving antenna.
    Type: Grant
    Filed: December 5, 2014
    Date of Patent: July 17, 2018
    Assignee: Mitsubishi Electric Engineering Company, Limited
    Inventors: Yoshiyuki Akuzawa, Yuki Ito, Hiroshi Matsumori
  • Patent number: 10003128
    Abstract: Disclosed is a resonant type power transmission antenna device provided with a plurality of transmission antennas 12 and a plurality of reception antennas 13, the resonant type power transmission antenna device including a transmission shield antenna 22 arranged between the plurality of transmission antennas 12, a reception shield antenna 23 arranged between the plurality of reception antennas 13, transmission and reception circuits 21 and 24 to operate the transmission and reception shield antennas 22 and 23 in electromagnetic field resonance having a phase opposite to that of the transmission and reception antennas 12 and 13 respectively adjacent to the transmission and reception shield antennas.
    Type: Grant
    Filed: December 26, 2013
    Date of Patent: June 19, 2018
    Assignee: MITSUBISHI ELECTRIC ENGINEERING COMPANY, LIMITED
    Inventors: Yoshiyuki Akuzawa, Kiyohide Sakai, Toshihiro Ezoe, Yuki Ito
  • Patent number: 9979315
    Abstract: A rectifying circuit for high-frequency power supply that rectifies an alternating voltage at a high frequency exceeding 2 MHz, the rectifying circuit for high-frequency power supply including a bridge rectifier circuit that rectifies the alternating voltage inputted from a reception antenna for power transmission, a matching functional circuit that matches a resonance condition to that of the reception antenna for power transmission, and a smoothing functional circuit that smooths the voltage rectified by the bridge rectifier circuit into a direct voltage, in which the rectifying circuit for high-frequency power supply causes the bridge rectifier circuit to perform partial resonant switching in a switching operation at the time of rectification by using the matching functional circuit and the smoothing functional circuit.
    Type: Grant
    Filed: November 15, 2013
    Date of Patent: May 22, 2018
    Assignee: MITSUBISHI ELECTRIC ENGINEERING COMPANY, LIMITED
    Inventors: Yoshiyuki Akuzawa, Kiyohide Sakai, Toshihiro Ezoe, Yuki Ito
  • Patent number: 9941745
    Abstract: A second resonant type transmission power supply device 1b includes a transmission power state detecting circuit 11b that detects a transmission power state of a second transmission antenna 2b, a foreign object detecting circuit 124b that detects the presence or absence of a foreign object in an overlapping range of electromagnetic fields on the basis of a detection result acquired by the transmission power state detecting circuit 11b, and a power control circuit 125b that, when a foreign object is detected by the foreign object detecting circuit 124b, controls a first resonant type transmission power supply device 1a in such a way as to reduce or stop the supply of electric power to a first transmission antenna 2a.
    Type: Grant
    Filed: December 26, 2013
    Date of Patent: April 10, 2018
    Assignee: Mitsubishi Electric Engineering Company, Limited
    Inventors: Yoshiyuki Akuzawa, Kiyohide Sakai, Toshihiro Ezoe, Yuki Ito
  • Patent number: 9901779
    Abstract: Provided is a control apparatus for an exercise therapy device to be used to carry out interval training where a high-intensity exercise and a low-intensity exercise, which have different exercise loads, are alternately carried out, including: an exercise load setting part for inputting an exercise load and exercise time period for the high-intensity exercise and low-intensity exercise from an input device of the exercise therapy device and setting the input exercise load and exercise time period in a storage part of the exercise therapy device as an exercise program; and a display control part for displaying a timing at which an exercise intensity of the exercise program is to change next during the interval training on a display device of the exercise therapy device.
    Type: Grant
    Filed: August 29, 2014
    Date of Patent: February 27, 2018
    Assignee: Mitsubishi Electric Engineering Company, Limited
    Inventor: Hironori Suzuki
  • Patent number: 9906739
    Abstract: Provided is an image pickup device capable of facilitating distinction between a normal area and a specific area for a camera for medical or industrial use. The image pickup device for picking up images in a plurality of wavelength bands includes a first image pickup part for picking up an optical image in a near-infrared band, a second image pickup part for picking up an optical image in a visible-light band, an image processing part for performing processing for extracting necessary information from a near-infrared image acquired by the first image pickup part, and a synthesized-image generating part for adding a visible image acquired by the second image pickup part and an image obtained by the image processing part at a predetermined ratio to generate a synthetized image.
    Type: Grant
    Filed: July 29, 2014
    Date of Patent: February 27, 2018
    Assignee: Mitsubishi Electric Engineering Company, Limited
    Inventors: Tetsuo Sugano, Satoshi Shikita
  • Patent number: 9882435
    Abstract: A resonant type high frequency power supply device provided with a power semiconductor element that performs a switching operation, the power supply device including a second power semiconductor element at least one or more connected in parallel to the power semiconductor element to achieve optimization of parasitic capacitances of the power semiconductor element and the second power semiconductor element itself, and a high frequency pulse drive circuit that transmits a pulse-shaped voltage signal having a high frequency exceeding 2 MHz to the power semiconductor element and the second power semiconductor element to drive the power semiconductor element and the second power semiconductor element.
    Type: Grant
    Filed: October 31, 2013
    Date of Patent: January 30, 2018
    Assignee: Mitsubishi Electric Engineering Company, Limited
    Inventors: Yoshiyuki Akuzawa, Kiyohide Sakai, Toshihiro Ezoe, Yuki Ito