Patents by Inventor Yukihiro Miyashita

Yukihiro Miyashita 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: 11940347
    Abstract: A pressure sensor has a stem in which a pressure introduction hole into which a pressure medium is introduced and a diaphragm deformable according to the pressure of the pressure medium are formed, and a strain detecting element which is arranged on the diaphragm via an insulating film and being configured to output a detection signal according to the deformation of the diaphragm. The strain detecting element is configured to have a portion made of polysilicon. A low doping layer having a higher electrical resistivity than polysilicon and a higher crystallinity than the insulating film is arranged between the insulating film and the strain detecting element.
    Type: Grant
    Filed: October 22, 2021
    Date of Patent: March 26, 2024
    Assignees: DENSO CORPORATION, NAGANO KEIKI CO., LTD.
    Inventors: Hiroshi Kodama, Naoki Yoshida, Kaori Miyashita, Eiji Takeda, Nobuaki Yamada, Yoshihiro Tomomatsu, Yasushi Yanagisawa, Yusuke Midorikawa, Shirou Kamanaru, Kenichi Yokoyama, Inao Toyoda, Hisayuki Takeuchi, Naohisa Niimi, Masao Takahashi, Yasutake Ura, Kouji Asano, Yukihiro Kamada
  • Patent number: 11732807
    Abstract: An eccentric butterfly valve that maintains high sealability when closed even when a high-pressure fluid is oriented in either direction of a forward flow or backflow. The valve includes a disk (23) axially supported at an eccentric position via a stem (22) inside a body (21). The disk is provided to a seat ring (24) fixed with a seat retainer (25) so as to be hermetically sealable. A flexible part is formed on an inner diameter side of the seat ring, and a spring member is mounted between the flexible part and the seat retainer. In the spring member, a load increases substantially in proportion to the magnitude of tilt of the flexible part when the disk is displaced to a seat retainer side. When the flexible part is elastically deformed, the spring member is elastically deformed in a state where contact with the seat retainer is avoided.
    Type: Grant
    Filed: October 29, 2020
    Date of Patent: August 22, 2023
    Assignee: KITZ CORPORATION
    Inventors: Yukihiro Miyashita, Kazuhisa Kubota, Yuri Kobayashi
  • Publication number: 20230151888
    Abstract: Provided are an eccentric butterfly valve, in particular, suitable for high-pressure fluids, in which: even if a dimensional error among components is large, the seat ring is aligned with the disk while sealability between the seat ring and the body is ensured; for either pressure, positive pressure or counter pressure, the seal surface pressure between the disk and the seat ring is ensured to achieve sealability; and a continuous seal portion is ensured between the body and the seat ring, thereby reliably inhibiting fluid leakage, and a method of manufacturing the eccentric butterfly valve. A tapered surface 31 formed on a seat ring 20 and a step portion 30 formed on a body 2 are opposed to each other. With a corner portion 35 of the step portion 30 on a tapered surface 31 side digging into the tapered surface 31, an annular seal portion 33 is formed on an opposed plane between the body 2 and a seat ring 6.
    Type: Application
    Filed: March 18, 2021
    Publication date: May 18, 2023
    Inventors: Yukihiro MIYASHITA, Chokkaku YOKOZAWA
  • Patent number: 11630746
    Abstract: A substitution apparatus for installation in a vehicle in which a plurality of in-vehicle control apparatuses are implemented, the substitution apparatus including a control unit and a substitute unit. The control unit is configured to control the substitute unit based on transmission data transmitted from the in-vehicle control apparatuses, specify an abnormal in-vehicle control apparatus based on the transmission data, disable the specified abnormal in-vehicle control apparatus, and apply, to the substitute unit, a program for exhibiting functions otherwise normally executed by the specified abnormal in-vehicle control apparatus. The substitute unit is configured to substitute for the disabled in-vehicle control apparatus by executing the applied program.
    Type: Grant
    Filed: January 15, 2020
    Date of Patent: April 18, 2023
    Assignees: AutoNetworks Technologies, Ltd., Sumitomo Wiring Systems, Ltd., Sumitomo Electric Industries, Ltd.
    Inventors: Fumiya Ishikawa, Yukihiro Miyashita, Hiroshi Ueda, Naoki Adachi, Shinichi Aiba, Shogo Kamiguchi
  • Publication number: 20220364649
    Abstract: An eccentric butterfly valve that maintains high sealability when closed even when a high-pressure fluid is oriented in either direction of a forward flow or backflow. The valve includes a disk (23) axially supported at an eccentric position via a stem (22) inside a body (21). The disk is provided to a seat ring (24) fixed with a seat retainer (25) so as to be hermetically sealable. A flexible part is formed on an inner diameter side of the seat ring, and a spring member is mounted between the flexible part and the seat retainer. In the spring member, a load increases substantially in proportion to the magnitude of tilt of the flexible part when the disk is displaced to a seat retainer side. When the flexible part is elastically deformed, the spring member is elastically deformed in a state where contact with the seat retainer is avoided.
    Type: Application
    Filed: October 29, 2020
    Publication date: November 17, 2022
    Inventors: Yukihiro MIYASHITA, Kazuhisa KUBOTA, Yuri KOBAYASHI
  • Publication number: 20220206909
    Abstract: A substitution apparatus for installation in a vehicle in which a plurality of in-vehicle control apparatuses are implemented, the substitution apparatus including a control unit and a substitute unit. The control unit is configured to control the substitute unit based on transmission data transmitted from the in-vehicle control apparatuses, specify an abnormal in-vehicle control apparatus based on the transmission data, disable the specified abnormal in-vehicle control apparatus, and apply, to the substitute unit, a program for exhibiting functions otherwise normally executed by the specified abnormal in-vehicle control apparatus. The substitute unit is configured to substitute for the disabled in-vehicle control apparatus by executing the applied program.
    Type: Application
    Filed: January 15, 2020
    Publication date: June 30, 2022
    Applicants: AutoNetworks Technologies, Ltd., Sumitomo Wiring Systems, Ltd., Sumitomo Electric Industries, Ltd.
    Inventors: Fumiya Ishikawa, Yukihiro Miyashita, Hiroshi Ueda, Naoki Adachi, Shinichi Aiba, Shogo Kamiguchi
  • Patent number: 10778696
    Abstract: Provided is a vehicle-mounted relay device, a vehicle-mounted communication system, and a relay program configured to prevent an unauthorized message from being relayed between networks. A vehicle-mounted relay device includes a plurality of communication units to which a plurality of CAN buses are connected and determines whether a message transmitted by any ECU connected to the CAN buses are authorized. If a message is unauthorized, then the vehicle-mounted relay device 10 gives, to the respective CAN bus connected to the communication unit receiving the message, a notification that the unauthorized message has been transmitted. The vehicle-mounted relay device prohibits further relaying of a message that has the same CAN-ID as the CAN-ID contained in the message determined to be unauthorized. Concurrently, the vehicle-mounted relay device gives, to the other communication lines connected to a communication unit, a notification that relay of the message is prohibited.
    Type: Grant
    Filed: June 10, 2016
    Date of Patent: September 15, 2020
    Assignees: AutoNetworks Technologies, Ltd., Sumitomo Wiring Systems, Ltd., Sumitomo Electric Industries, Ltd.
    Inventor: Yukihiro Miyashita
  • Patent number: 10520098
    Abstract: A butterfly-valve seat ring and fixing structure of the same, and an eccentric-type butterfly valve in which, the butterfly-valve seat ring has a flexible part (31) with a predetermined material thickness integrally and extendedly provided on one side surface of an inner diameter of a ring-shaped base body part (30) having a substantially rectangular shape in section and has a fixing part (32) integrally and extendedly provided on one side surface of an outer diameter of the base body part, has a recessed-shaped space part (40) provided between an outer circumferential surface (36) of the flexible part and an inner circumferential surface (37) of the fixing part, and has a seal contact part (35) provided to project at an inner diameter position of the flexible part. The seal contact part is positioned on an inner circumferential surface of the flexible part rather than a depth-side position of the space part.
    Type: Grant
    Filed: October 6, 2015
    Date of Patent: December 31, 2019
    Assignee: KITZ CORPORATION
    Inventors: Yukihiro Miyashita, Kazunori Sakyu
  • Patent number: 10377257
    Abstract: A vehicle-mounted charging device (12) includes a vehicle-mounted battery (18), a vehicle-mounted electronic control unit (30) and a modem startup control unit. The vehicle-mounted battery is charged with power supplied from external charging equipment via a charging cable (16). The vehicle-mounted electronic control unit is configured to perform charging communication, relating to charging of the vehicle-mounted battery, with the external charging equipment using an in-band modem (32). The modem startup control unit starts up the in-band modem when the vehicle-mounted electronic control unit performs the charging communication, and that stops a startup of the in-band modem when the vehicle-mounted electronic control unit does not perform the charging communication.
    Type: Grant
    Filed: December 27, 2013
    Date of Patent: August 13, 2019
    Assignees: TOYOTA JIDOSHA KABUSHIKI KAISHA, SUMITOMO ELECTRIC INDUSTRIES, LTD., SUMITOMO WIRING SYSTEMS, LTD., AUTONETWORKS TECHNOLOGIES, LTD.
    Inventors: Hiroya Ando, Ryuichi Kamaga, Nobuyuki Nakagawa, Yuta Ochiai, Yukihiro Miyashita, Takeshi Hagihara, Yoshikazu Isoyama
  • Publication number: 20180367546
    Abstract: Provided is a vehicle-mounted relay device, a vehicle-mounted communication system, and a relay program configured to prevent an unauthorized message from being relayed between networks. A vehicle-mounted relay device includes a plurality of communication units to which a plurality of CAN buses are connected and determines whether a message transmitted by any ECU connected to the CAN buses are authorized. If a message is unauthorized, then the vehicle-mounted relay device 10 gives, to the respective CAN bus connected to the communication unit receiving the message, a notification that the unauthorized message has been transmitted. The vehicle-mounted relay device prohibits further relaying of a message that has the same CAN-ID as the CAN-ID contained in the message determined to be unauthorized. Concurrently, the vehicle-mounted relay device gives, to the other communication lines connected to a communication unit, a notification that relay of the message is prohibited.
    Type: Application
    Filed: June 10, 2016
    Publication date: December 20, 2018
    Inventor: Yukihiro Miyashita
  • Patent number: 10049232
    Abstract: A rewrite detection system, a rewrite detection device and an information processing device can detect unauthorized rewrite to a program or data stored in a storage unit of the information processing device. A rewrite detection device generates a random seed and transmits it to an ECU and a server device. The ECU calculates a hash value using a predetermined hash function on the basis of the received random seed and the storage content of the storage unit, and transmits the hash value to the rewrite detection device. The server device transmits an expectation in response to an inquiry from the rewrite detection device. The rewrite detection device determines whether unauthorized rewrite to a program or data in the ECU has been performed or not in accordance with whether the expectation received from the server device and the hash value received from the ECU coincide with each other or not.
    Type: Grant
    Filed: September 12, 2014
    Date of Patent: August 14, 2018
    Assignees: NATIONAL UNIVERSITY CORPORATION NAGOYA UNIVERSITY, AUTONETWORKS TECHNOLOGIES LTD., SUMITOMO WIRING SYSTEMS, LTD., SUMITOMO ELECTRIC INDUSTRIES, LTD.
    Inventors: Hiroaki Takada, Hiroki Takakura, Yukihiro Miyashita, Satoshi Horihata, Hiroshi Okada, Naoki Adachi
  • Patent number: 10000503
    Abstract: A power supply system and a connector, which can suppress occurrence of crosstalk between a power supply wire, and a control wire and an earth wire in a charging cable that includes the power supply wire, the control wire and the earth wire at the time of connecting a power supplying device with a vehicle having a power storage device to be supplied with power from the power supplying device via the power supply wire and the earth wire to be used for supplying power and the control wire for transmitting a control signal to be used for power supply control of the power storage device, are provided. The ratio of the winding number of a primary coil connected with at least one of the control wire and the earth wire to the winding number of a secondary coil connected with a communication unit that sends and receives a communication signal is set at 1/N (N>1) in a system which satisfies VnC>VnL or is set at N (N>1) in a system which satisfies VnC<VnL.
    Type: Grant
    Filed: September 7, 2012
    Date of Patent: June 19, 2018
    Assignees: SUMITOMO ELECTRIC INDUSTRIES, LTD., SUMITOMO WIRING SYSTEMS, LTD., AUTONETWORKS TECHNOLOGIES, LTD., TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Takeshi Hagihara, Ryou Okada, Yousuke Takata, Hiroya Andoh, Yuta Ochiai, Nobuyuki Nakagawa, Yukihiro Miyashita
  • Publication number: 20170302693
    Abstract: Provided are a rewrite detection system and an information processing device capable of reducing communication traffic between devices and processing time in each device. A rewrite detecting device generates a random seed and transmits the random seed to an ECU, the ECU calculates a hash value using a predetermined hash function, and transmits the hash value to a rewrite detecting device. The ECU decides a storage region serving among storage regions of the storage unit, and calculates the hash value. The rewrite detecting device determines whether the hash value received from the ECU is right or wrong, and determines whether or not fraudulent rewrite has been performed. The ECU designates a storage region which is apart from a storage region used as a previous hash value calculation target by a predetermined address as a storage region of a current processing target.
    Type: Application
    Filed: September 11, 2015
    Publication date: October 19, 2017
    Inventors: Hiroaki Takada, Hiroki Takakura, Naoki Adachi, Yukihiro Miyashita, Satoshi Horihata, Hiroshi Okada
  • Publication number: 20170299065
    Abstract: A butterfly-valve seat ring and fixing structure of the same, and an eccentric-type butterfly valve in which, the butterfly-valve seat ring has a flexible part (31) with a predetermined material thickness integrally and extendedly provided on one side surface of an inner diameter of a ring-shaped base body part (30) having a substantially rectangular shape in section and has a fixing part (32) integrally and extendedly provided on one side surface of an outer diameter of the base body part, has a recessed-shaped space part (40) provided between an outer circumferential surface (36) of the flexible part and an inner circumferential surface (37) of the fixing part, and has a seal contact part (35) provided to project at an inner diameter position of the flexible part. The seal contact part is positioned on an inner circumferential surface of the flexible part rather than a depth-side position of the space part.
    Type: Application
    Filed: October 6, 2015
    Publication date: October 19, 2017
    Inventors: Yukihiro MIYASHITA, Kazunori SAKYU
  • Patent number: 9735832
    Abstract: An output circuit sends a control pilot signal generated in a voltage generator to an input circuit. A communication unit is connected between an earthed wire and a control pilot wire on the output side of the output circuit via a bandpass filter. A communication unit is connected between the earthed wire and the control pilot wire on the input side of the input circuit via a bandpass filter. A low-pass filter is interposed between the output circuit and the communication unit. A low-pass filter is interposed between the input circuit and the communication unit.
    Type: Grant
    Filed: July 13, 2012
    Date of Patent: August 15, 2017
    Assignees: SUMITOMO ELECTRIC INDUSTRIES, LTD., SUMITOMO WIRING SYSTEMS, LTD., AUTONETWORKS TECHNOLOGIES, LTD., TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Takeshi Hagihara, Yutaka Komatsu, Tatsuya Izumi, Kazuhiko Nii, Ryou Okada, Yousuke Takata, Hiroya Andoh, Yuta Ochiai, Ryuichi Kamaga, Atsushi Iwai, Yukihiro Miyashita, Nobuyuki Nakagawa
  • Patent number: 9694701
    Abstract: A vehicle charging apparatus mounted on a vehicle for charging an on-vehicle battery from an external power supply, with a charging plug connected to the vehicle, includes a communication device that is configured to perform communication with a charging facility providing the external power supply with the charging plug connected and locked to the vehicle. The communication device prohibits disconnection of the communication when an unlocking operation to unlock the charging plug is executed during charging from the external power supply to the on-vehicle battery.
    Type: Grant
    Filed: February 21, 2013
    Date of Patent: July 4, 2017
    Assignees: Toyota Jidosha Kabushiki Kaisha, Sumitomo Electric Industries, Ltd., Sumitomo Wiring Systems, Ltd., Autonetworks Technologies, Ltd.
    Inventors: Nobuyuki Nakagawa, Yuta Ochiai, Yukihiro Miyashita, Hiroshi Nagao, Takeshi Hagihara, Yoshikazu Isoyama
  • Patent number: 9577709
    Abstract: An output circuit sends out, to an input circuit, a control pilot signal generated by a voltage source. A voltage transformer is provided to a control pilot line on the output side of the output circuit, and a communication unit transmits and receives communication signals via the voltage transformer. A voltage transformer is provided to the control pilot line on the input side of the input circuit, and a communication unit transmits and receives the communication signals via the voltage transformer. A low-pass filter is provided to the control pilot line between the input circuit and the voltage transformer.
    Type: Grant
    Filed: July 13, 2012
    Date of Patent: February 21, 2017
    Assignees: SUMITOMO ELECTRIC INDUSTRIES, LTD., SUMITOMO WIRING SYSTEMS, LTD., AUTONETWORKS TECHNOLOGIES, LTD., TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Ryou Okada, Takeshi Hagihara, Yutaka Komatsu, Tatsuya Izumi, Kazuhiko Nii, Yousuke Takata, Hiroya Andoh, Yuta Ochiai, Ryuichi Kamaga, Atsushi Iwai, Yukihiro Miyashita, Nobuyuki Nakagawa
  • Patent number: 9511727
    Abstract: Provided are a power line communication system, a connector device, and a power line communication device that allow downsizing of a device for power line communication in a vehicle that performs power line communication with a feeding device via a charging cable. An electromagnetic induction type signal converter and a filter necessary for power line communication are provided in a connector device 3, and a power line communication section which performs power line communication with the electromagnetic induction type signal converter is provided in an ECU. A capacitor 16, a signal wire 17, and a capacitor 16 are connected in series between AC lines 11 and 12 extending from a tubular part 32 of the connector device 3.
    Type: Grant
    Filed: February 1, 2012
    Date of Patent: December 6, 2016
    Assignees: Sumitomo Electric Industries, Ltd., Toyota Jidosha Kabushiki Kaisha
    Inventors: Yousuke Takata, Takeshi Hagihara, Yutaka Komatsu, Hiroya Andoh, Yuta Ochiai, Nobuyuki Nakagawa, Yukihiro Miyashita
  • Publication number: 20160221455
    Abstract: A charging system of an in-vehicle battery (11) is configured to charge the in-vehicle battery with an external charging device (30) capable of performing quick charging. The charging system includes a rainfall information acquiring unit and a controller (15). The rainfall information acquiring unit is configured to acquire rainfall information that is information indicating whether it is raining. The controller is configured to control a charging mode of the in-vehicle battery with the external charging device. Furthermore, the controller is configured to inhibit performing of the quick charging or to reduce an amount of charging current in the quick charging based on the rainfall information, which indicates that it is raining, acquired by the rainfall information acquiring unit.
    Type: Application
    Filed: September 8, 2014
    Publication date: August 4, 2016
    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Hiroya ANDO, Kengo HAYASHIZAKI, Yukihiro MIYASHITA, Yoshifumi OHMORI
  • Publication number: 20160224806
    Abstract: A rewrite detection system, a rewrite detection device and an information processing device can detect unauthorized rewrite to a program or data stored in a storage unit of the information processing device. A rewrite detection device generates a random seed and transmits it to an ECU and a server device. The ECU calculates a hash value using a predetermined hash function on the basis of the received random seed and the storage content of the storage unit, and transmits the hash value to the rewrite detection device. The server device transmits an expectation in response to an inquiry from the rewrite detection device. The rewrite detection device determines whether unauthorized rewrite to a program or data in the ECU has been performed or not in accordance with whether the expectation received from the server device and the hash value received from the ECU coincide with each other or not.
    Type: Application
    Filed: September 12, 2014
    Publication date: August 4, 2016
    Applicants: NATIONAL UNIVERSITY CORPORATION NAGOYA UNIVERSITY, AUTONETWORKS TECHNOLOGIES, LTD., SUMITOMO WIRING SYSTEMS, LTD., SUMITOMO ELECTRIC INDUSTRIES, LTD.
    Inventors: Hiroaki TAKADA, Hiroki TAKAKURA, Yukihiro MIYASHITA, Satoshi HORIHATA, Hiroshi OKADA, Naoki ADACHI