Patents Assigned to Soken Inc.
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Patent number: 10274385Abstract: A torque detecting apparatus includes a first shaft; a second shaft; an elastic member coaxially linking the first and second shafts; and a magnet attached to the first shaft; a pair of magnetic yokes composed of a first magnetic yoke and a second magnetic yoke, the first and second magnetic yokes being fixedly installed on the second shaft; and a magnetic sensor. Each magnetic yoke includes an opposing portion and a wall portion. The opposing portion is opposed to the magnet and displaced circumferentially relatively to the magnet when the elastic member is subjected to a torsional displacement. The wall portions of the first and second magnetic yokes are separated and positioned outside the opposing portions in the radial direction. The wall portions of the first and second magnetic yokes extend to be mutually opposed. The magnetic sensor is positioned between the wall portions.Type: GrantFiled: December 18, 2017Date of Patent: April 30, 2019Assignees: SOKEN, INC., DENSO CORPORATIONInventors: Yoshitaka Nishiguchi, Ken Tanaka, Shigetoshi Fukaya, Toshiro Suzuki, Satoru Jinno
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Patent number: 10242787Abstract: A solenoid device includes two electromagnetic coils, two stationary cores, two plungers and a yoke that surrounds the two electromagnetic coils. When a first electromagnetic coil is energized, magnetic flux flows through a first magnetic circuit that includes the first stationary core. When the two electromagnetic coils are energized, magnetic flux of the first electromagnetic coil flows through the first magnetic circuit, and magnetic flux of the second electromagnetic coil flows through a second magnetic circuit that includes a second stationary core. When energization of the first electromagnetic coil is stopped while maintaining energization of the second electromagnetic coil, the magnetic flux of the second electromagnetic coil continues to flow through the second magnetic circuit and a third magnetic circuit that includes the two stationary cores. A magnetism limiting portion is disposed in a portion of the second magnetic circuit that does not overlap the third magnetic circuit.Type: GrantFiled: November 22, 2016Date of Patent: March 26, 2019Assignees: NIPPON SOKEN, INC., DENSO CORPORATION, ANDEN CO., LTD.Inventors: Ken Tanaka, Shota Iguchi, Tomoaki Tanaka
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Publication number: 20190072988Abstract: A pressure reducing valve includes a body, an annular valve seat, a valve element, and a pressing mechanism configured to press the valve element. The pressing mechanism includes a plug provided downstream of the valve seat and having a plug hole, and a pin including a sliding portion and an upstream end, the sliding portion having a shaft shape and being inserted in the plug hole such that a gap is provided between the sliding portion and an inner peripheral surface of the plug hole, and the upstream end being provided upstream of the sliding portion so as to contact the valve element. A fitting length of the sliding portion with respect to the plug hole and the gap between the sliding portion and the plug hole satisfy 0.0005 L<C<0.00908 L, where L indicates the fitting length, and C indicates the gap.Type: ApplicationFiled: August 23, 2018Publication date: March 7, 2019Applicants: JTEKT Corporation, Toyota Jidosha Kabushiki Kaisha, Soken, Inc.Inventors: Kazuhisa SUGIYAMA, Koji Nishi, Akira Nakano, Yutaka Hotta, Akira Yamashita, Shota Yamamoto, Yasushi Mitsuishi
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Patent number: 10224925Abstract: A communication node is connected to a transmission line which transmits a differential signal changeable between a high level and a low level and has a high potential signal line and a low potential signal line as a pair of signal lines. The communication node includes: an inter-line potential detector that detects an intermediate potential between the pair of signal lines; a node potential detector that detects an intermediate potential of an operation power source voltage which is supplied to the communication node; and a voltage adjuster that detects a difference between the intermediate potential detected by the inter-line potential detector and the intermediate potential detected by the node potential detector, and adjusts the operation power source voltage in accordance with the difference.Type: GrantFiled: June 8, 2016Date of Patent: March 5, 2019Assignees: DENSO CORPORATION, SOKEN, INC.Inventors: Hiroyuki Mori, Takuya Honda, Tomohisa Kishigami, Hirofumi Isomura
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Patent number: 10220953Abstract: In an aerial vehicle, a malfunction determiner determines whether there is a malfunction in one of thrusters of the aerial vehicle. A flight controller activates the thrusters, and controls the output of each of the thrusters. The flight controller deactivates, when it is determined that there is a malfunction in one of the thrusters as a malfunctioned thruster, the malfunctioned thruster. The flight controller deactivates a selected thruster in the thrusters; the selected thruster being paired to the malfunctioned thruster, and controls the active thrusters except for the deactivated thrusters in all the thrusters to make the flight attitude of the aerial vehicle stable. The flight controller controls the active thrusters to cause the aerial vehicle to land while maintaining the flight attitude of the aerial vehicle being stable.Type: GrantFiled: December 2, 2016Date of Patent: March 5, 2019Assignees: SOKEN, INC., DENSO CORPORATIONInventors: Hiroki Ishii, Koji Kawasaki, Takenori Matsue, Shinji Andou, Hiroyasu Baba
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Patent number: 10224826Abstract: A control unit capable of accurately calculating a magnetization bias of a transformer is provided, thereby appropriately reducing the magnetization bias. The control unit acquires first and second currents that flow through a transformer during a period where either first or second switches individually turn ON. The control unit predicts an amount of magnetization bias in either positive side or negative side of the excitation current that flows through the transformer. The control unit reduces the magnetization bias of the transformer based on the predicted amount of magnetization bias.Type: GrantFiled: May 23, 2018Date of Patent: March 5, 2019Assignees: SOKEN, INC., DENSO CORPORATIONInventors: Seiji Iyasu, Yuji Hayashi, Yuichi Handa
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Patent number: 10211036Abstract: A jet flow generation device includes: a discharge electrode; a reference electrode that is disposed away from the discharge electrode; a power supply circuit that generates an output voltage to control a potential difference between the discharge electrode and the reference electrode; a controller that switches the output voltage of the power supply circuit between a first voltage that does not induce corona discharge between the discharge electrode and the reference electrode and a second voltage that induces corona discharge between the discharge electrode and the reference electrode; and a case housing at least the reference electrode has an injection port that injects an ion wind of ions generated by the corona discharge.Type: GrantFiled: August 11, 2016Date of Patent: February 19, 2019Assignees: DENSO CORPORATION, SOKEN, INC.Inventors: Noboru Maeda, Koji Ito, Kiyokazu Akiyama, Masayoshi Satake
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Patent number: 10180462Abstract: An AC component ?I addition unit of a diagnostic device superimposes an alternating current on an output current of a fuel cell. A Zn calculation unit calculates a cell impedance with respect to the alternating current with regard to any of a plurality of cells. A diagnosis unit diagnoses that any cell is subjected to hydrogen deficiency when an absolute value of the cell impedance exceeds (absolute value of a reference impedance+a predetermined value ?). It is diagnosed that any cell is subjected to oxygen deficiency when the absolute value of the cell impedance is smaller than (absolute value of the reference impedance?a predetermined value ?).Type: GrantFiled: August 19, 2016Date of Patent: January 15, 2019Assignees: Toyota Jidosha Kabushiki Kaisha, Nippon Soken, Inc.Inventors: Yuji Ishikawa, Takashi Yamamoto, Shigeki Hasegawa, Syuya Kawahara
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Patent number: 10170938Abstract: An electric power receiving device has an electric power receiving unit that contactlessly receives electric power from an electric power transmission device, and the power receiving unit includes a first node, a second node, and a capacitor, a coil, a capacitor, a coil, and a capacitor, which are sequentially connected in series, between the first node and the second node.Type: GrantFiled: March 30, 2016Date of Patent: January 1, 2019Assignees: TOYOTA JIDOSHA KABUSHIKI KAISHA, NIPPON SOKEN, INC.Inventors: Hiroaki Yuasa, Ryohei Nishizaki, Norihito Kimura
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Patent number: 10164620Abstract: A ringing suppression circuit, which is connected to a transmission line for transmitting a differential signal changeable between a high level and a low level in a binary level through a pair of a high potential side signal line and a low potential side signal line, and suppresses ringing that occurs in association with transmission of the differential signal, includes: an inter-line switching element that is connected to the pair of the high potential side signal line and the low potential side signal line; and a control unit that turns on the inter-line switching element and fixes an on state when detecting that the differential signal changes from the high level to the low level, and releases the on state after a predetermined time is measured and elapsed.Type: GrantFiled: August 25, 2016Date of Patent: December 25, 2018Assignees: DENSO CORPORATION, SOKEN, INC.Inventors: Takuya Honda, Hirofumi Isomura, Tomohisa Kishigami, Hiroyuki Mori, Yasuhiro Mori, Yuki Horii
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Patent number: 10156633Abstract: In a sensor system, a monitoring ECU includes a result-transmission-instruction transmission section that transmits through a signal line a measurement result transmission instruction for transmitting distance data. The result-transmission-instruction transmission section transmits, during a new detection operation, the measurement result transmission instruction to at least one of the ultrasonic sensors engaged in a last detection operation. Upon receipt of the measurement result transmission instruction, a communication section of the ultrasonic sensors transmits a detection result during the new detection operation.Type: GrantFiled: October 22, 2014Date of Patent: December 18, 2018Assignees: DENSO CORPORATION, NIPPON SOKEN, INC.Inventors: Takuya Nomura, Taketo Harada, Mitsuyasu Matsuura
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Patent number: 10145373Abstract: A rotary compression mechanism includes: a shaft attached to a casing; a drive cylinder rotatably supported on the shaft; a rotor provided inside the drive cylinder; a transfer mechanism connecting the drive cylinder and the rotor in rotational motion at a constant speed; and a partition plate dividing a space defined between an inner periphery of the drive cylinder and an outer periphery of the rotor. The rotor has a second rotation center which is eccentric with respect to a first rotation center of the drive cylinder such that the outer periphery of the rotor is in contact with the inner periphery of the drive cylinder at a contact portion. The partition plate has a structure by which one end of the partition plate is let in and out in a vicinity of the inner periphery of the drive cylinder or in a vicinity of the outer periphery of the rotor.Type: GrantFiled: May 26, 2014Date of Patent: December 4, 2018Assignees: DENSO CORPORATION, SOKEN, INC.Inventors: Yoshinori Murase, Masami Sanuki, Masashi Higashiyama, Hiroshi Ogawa
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Publication number: 20180342942Abstract: A control unit capable of accurately calculating a magnetization bias of a transformer is provided, thereby appropriately reducing the magnetization bias. The control unit acquires first and second currents that flow through a transformer during a period where either first or second switches individually turn ON. The control unit predicts an amount of magnetization bias in either positive side or negative side of the excitation current that flows through the transformer. The control unit reduces the magnetization bias of the transformer based on the predicted amount of magnetization bias.Type: ApplicationFiled: May 23, 2018Publication date: November 29, 2018Applicants: SOKEN, INC., DENSO CORPORATIONInventors: Seiji IYASU, Yuji HAYASHI, Yuichi HANDA
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Patent number: 10140676Abstract: An advance indication part performs an advance indication of operation of a robot by using a movable part in correspondence to an operation program or a command supplied to the robot. When the advance indication part performs the advance indication, a user detection part detects a user in a predetermined area of movement of the movable part based on a picture image taken by a camera. When the user detection part detects the user, a recognition check part checks whether the detected user has recognized the advance indication of the advance indication part. When the recognition check part determines that the detected user has not recognized the advance indication yet, a recognition promotion part promotes the detected user to recognize the advance indication or an operation of the robot.Type: GrantFiled: November 16, 2016Date of Patent: November 27, 2018Assignees: SOKEN, INC., DENSO CORPORATIONInventors: Rina Hayashi, Toshiki Isogai
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Patent number: 10138861Abstract: In an ignition device, a second circuit energizes a primary coil from its negative side in a first direction to thereby maintain energization of a second coil in a second direction during spark discharge started by a first circuit. The maintained energization continuously supplies energy to a spark plug, thus performing a continuation of the spark discharge. The first direction is opposite to a direction of energization of the primary coil carried out by the first circuit, and the second direction is the same as a direction of energization of the second coil that has been started based on the first circuit. A humidity detection unit detects humidity of intake air into an engine. The control section controls the first circuit to advance start timing of the spark discharge generated by the first circuit in accordance with an increase in the humidity of the intake air.Type: GrantFiled: July 26, 2016Date of Patent: November 27, 2018Assignees: SOKEN, INC., DENSO CORPORATIONInventors: Shohei Ishida, Shunichi Takeda
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Patent number: 10141145Abstract: A relay apparatus incorporates at least first and second relays having respective first and second electromagnetic coils, with a single yoke partially surrounding each of the coils. When current is passed through only the first electromagnetic coil, to activate the first relay, resultant magnetic flux acting on the armature of the second relay is attenuated by passing a current through the second electromagnetic coil to produce opposing-direction magnetic flux. When current is passed in the opposite direction through the second coil, to activate the second relay, the magnetic fluxes produced by the first and second electromagnetic coils become mutually reinforced, thereby reducing the power consumption required to activate both of the relays and to maintain that activated state.Type: GrantFiled: March 31, 2016Date of Patent: November 27, 2018Assignees: NIPPON SOKEN, INC., DENSO CORPORATION, ANDEN CO., LTD.Inventors: Ken Tanaka, Shota Iguchi
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Patent number: 10125770Abstract: A cylinder-rotation-type compressor includes a discharge valve that is disposed in a cylinder and configured by a reed valve, a valve body portion that closes a discharge hole provided in the cylinder, and a support portion that couples the valve body portion with a fixing portion fixed to the cylinder. A shape of the valve body portion and a shape of the support portion are substantially symmetrical with respect to a line segment extending in a radial direction of a rotating axis. The valve body portion is disposed on a radially outer side of a connection portion of the fixing portion and the support portion.Type: GrantFiled: December 23, 2014Date of Patent: November 13, 2018Assignees: DENSO CORPORATION, SOKEN, INC.Inventors: Hiroshi Ogawa, Yoshinori Murase
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Patent number: 10128825Abstract: A ringing suppression circuit includes: a single line switching element, which is driven by a voltage, that is connected between a pair of signal lines; a controller that detects a change in a level of the differential signal and turns on the single line switching element to lower an impedance between the pair of signal lines; a period detector that detects a length of a suppressing period indicated by a setting signal, which is an input; and a suppressing period storage that stores the length of the suppressing period which is detected by the period detector. In addition, the pair of signal lines includes a high potential signal line and a low potential signal line. Moreover, the controller turns on the single line switching element for only the suppressing period having the length, which is stored in the suppressing period storage.Type: GrantFiled: August 25, 2016Date of Patent: November 13, 2018Assignees: DENSO CORPORATION, SOKEN, INC.Inventors: Hiroyuki Mori, Takuya Honda, Tomohisa Kishigami, Hirofumi Isomura
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Patent number: 10123628Abstract: An air passage forming member includes an air passage inner wall surface that forms a wall surface of a connecting air passage connected to a cushion air passage. A blower device case has an air intake opening that is connected to the connecting air passage. A centrifugal fan is received in the inside of the blower device case. The air passage forming member is arranged such that at a downstream end of the connecting air passage, the air, which flows along the air passage inner wall surface in the connecting air passage, forms an air flow, which is directed in an axial direction of a fan central axis, or an air flow, which is directed toward an outer side in a radial direction of the fan central axis in comparison to the air flow that is directed in the axial direction.Type: GrantFiled: January 7, 2016Date of Patent: November 13, 2018Assignees: DENSO CORPORATION, SOKEN, INC.Inventors: Fumiya Ishii, Masanori Yasuda, Shuzo Oda
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Patent number: 10116182Abstract: An electric motor storing device for a hybrid vehicle, the hybrid vehicle including an electric motor, the electric motor including a rotor shaft and an inner circumferential side rotational shaft disposed on an inner circumferential side of the rotor shaft in a manner to penetrate said rotor shaft, and a case configured to store the electric motor, the electric motor storing device includes: a support member for rotatably supporting the inner circumferential side rotational shaft and the rotor shaft; and an insulating section for insulating between the support member and the case.Type: GrantFiled: February 23, 2016Date of Patent: October 30, 2018Assignees: TOYOTA JIDOSHA KABUSHIKI KAISHA, NIPPON SOKEN, INC.Inventors: Motoki Takeno, Takuya Kodama, Koki Kawamoto, Hiroaki Kiyokami, Ryoji Isarai