Patents by Inventor Tetsuya Matsuoka

Tetsuya Matsuoka 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: 12081137
    Abstract: A power converter includes an inverter, a converter, an electrical-machine busbar, an electrical-machine sensor, an electrical-machine-sensor housing, a converter, a converter busbar, a converter-sensor housing. The inverter supplies a three-phase alternating current to a rotating electrical machine. The converter converts a voltage between a direct current power supply and the inverter. The electrical-machine busbar passes a current between the inverter and the rotating electrical machine. The electrical-machine sensor detects the current flowing through the electrical-machine busbar based on a magnetic field. The electrical-machine-sensor housing accommodates the electrical-machine sensor and the electrical-machine busbar together. The converter sensor detects the current flowing through the converter based on a magnetic field. The converter-sensor housing is disposed apart from the electrical-machine-sensor housing, and accommodates the converter sensor and the converter busbar together.
    Type: Grant
    Filed: September 28, 2022
    Date of Patent: September 3, 2024
    Assignee: DENSO CORPORATION
    Inventors: Yuuya Hashimoto, Yuu Yamahira, Toshiyuki Kouno, Hiromi Ichijyo, Kazuya Takeuchi, Tatsuya Murakami, Tetsuya Matsuoka
  • Publication number: 20240279624
    Abstract: It is an object of the present invention to provide an enzyme agent containing a transglutaminase having high reactivity at a low temperature and the use thereof. According to the present invention, provided is an enzyme agent containing, as an active ingredient, a transglutaminase consisting of an amino acid sequence having a sequence identity of 90% or more to the amino acid sequence of SEQ ID NO: 1.
    Type: Application
    Filed: June 13, 2022
    Publication date: August 22, 2024
    Applicant: AMANO ENZYME INC.
    Inventors: Tetsuya Takahashi, Hirotaka Matsubara, Tomohiro Matsuoka, Kiyota Sakai
  • Publication number: 20240255064
    Abstract: To provide a safety valve capable of suppressing creep of a fusible alloy to the minimum even if a member that blocks a flow path directly presses the fusible alloy. A fusible alloy is disposed between a blocking member that blocks the flow of fluid flowing from a discharge path of a fluid apparatus and a pressing cap, a reservoir part 8 that reserves the fused fusible alloy is formed at least in one of the blocking member 3 and the pressing cap, and two porous plates punched positions of which do not overlap with each other are arranged between the reservoir part and the fusible alloy.
    Type: Application
    Filed: July 29, 2021
    Publication date: August 1, 2024
    Applicants: FUJIKIN INCORPORATED, JTEKT CORPORATION
    Inventors: Masashi Matsuoka, Kunihiko Daido, Tadayuki Yakushijin, Koji Hiramatsu, Yusei Horikawa, Takao Kitanaka, Kazushi Numazaki, Natsuki Iwamoto, Tetsuya Tokuno
  • Publication number: 20240215211
    Abstract: The power conversion device has a case, a semiconductor module, a first cooler that cools the semiconductor module from one side, a second cooler that cools the semiconductor module from the back side, and a coupling pipe that couples a flow path of the first cooler with a flow path of the second cooler. A flow rate of the refrigerant is made different between the flow paths, and the flow path having a larger flow rate is larger in cross-sectional area than the flow path having a smaller flow rate. The first cooler having a wider flow path is formed by a part of the case that houses the semiconductor module, and the second cooler having a narrower flow path is housed in the case together with the semiconductor module.
    Type: Application
    Filed: March 4, 2024
    Publication date: June 27, 2024
    Applicant: DENSO CORPORATION
    Inventors: Tetsuya MATSUOKA, Yuta Hashimoto, Tomoki Kozawa, Kazuya Takeuchi, Shinji Takai, Takahiro Shimizu
  • Publication number: 20240213887
    Abstract: In a power conversion device, first-phase semiconductor modules are successively arranged in a first direction to form a part of a first row. Second-phase semiconductor modules are successively arranged in the first direction to form a part of a second row while facing the first-phase semiconductor modules. Third-phase semiconductor modules are arranged in a second direction so that one of the third-phase semiconductor modules forms a part of the first row and another of the third-phase semiconductor modules forms a part of the second row. The first row and the second row have surfaces facing each other and from which output terminals protrude. Each of output conductors extends from a connected portion of an output terminal in a direction away from the third-phase semiconductor modules.
    Type: Application
    Filed: March 4, 2024
    Publication date: June 27, 2024
    Applicant: DENSO CORPORATION
    Inventors: Tetsuya MATSUOKA, Yuta HASHIMOTO, Masataka DEGUCHI, Tatsuya MURAKAMI, Yoshinori HAYASHI
  • Publication number: 20230328938
    Abstract: A power module has a semiconductor module and a cooling device. The cooling device has a cooling unit provided in the semiconductor module so as to be capable of conducting heat, a supply pipe configured to supply refrigerant to an interior of the cooling unit, and a discharge pipe configured to discharge the refrigerant that is flowed inside the cooling unit. The semiconductor module and the cooling unit are arranged in a z-direction. The supply pipe and the discharge pipe are spaced apart in a x-direction. Each of the supply pipe and the discharge pipe faces the semiconductor module in a y-direction.
    Type: Application
    Filed: June 14, 2023
    Publication date: October 12, 2023
    Applicant: DENSO CORPORATION
    Inventors: Tetsuya MATSUOKA, Yuta HASHIMOTO, Kazuya TAKEUCHI, Tomoki KOZAWA
  • Patent number: 11563384
    Abstract: In a power converter, electronic components constituting a power conversion circuit is provided. A capacitor module and a converter case are also provided in the power converter. Fastening members, which include a first fastening member and a second fastening member, are configured to fasten the capacitor module to the converter case. The first and second fastening members are mounted on the inner bottom surface of the converter case. At least one of the electronic components is mounted to the capacitor module and is arranged between the first fastening member and the second fastening member when viewed in a view direction perpendicular to an alignment direction of the first and second fastening members. The view direction is parallel to the inner bottom surface of the converter case.
    Type: Grant
    Filed: February 9, 2021
    Date of Patent: January 24, 2023
    Assignee: DENSO CORPORATION
    Inventors: Masaya Tonomoto, Tetsuya Matsuoka, Hiromi Ichijo
  • Publication number: 20230020456
    Abstract: A power converter includes an inverter, a converter, an electrical-machine busbar, an electrical-machine sensor, an electrical-machine-sensor housing, a converter, a converter busbar, a converter-sensor housing. The inverter supplies a three-phase alternating current to a rotating electrical machine. The converter converts a voltage between a direct current power supply and the inverter. The electrical-machine busbar passes a current between the inverter and the rotating electrical machine. The electrical-machine sensor detects the current flowing through the electrical-machine busbar based on a magnetic field. The electrical-machine-sensor housing accommodates the electrical-machine sensor and the electrical-machine busbar together. The converter sensor detects the current flowing through the converter based on a magnetic field. The converter-sensor housing is disposed apart from the electrical-machine-sensor housing, and accommodates the converter sensor and the converter busbar together.
    Type: Application
    Filed: September 28, 2022
    Publication date: January 19, 2023
    Applicant: DENSO CORPORATION
    Inventors: Yuuya HASHIMOTO, Yuu YAMAHIRA, Toshiyuki KOUNO, Hiromi ICHIJYO, Kazuya TAKEUCHI, Tatsuya MURAKAMI, Tetsuya MATSUOKA
  • Patent number: 11538794
    Abstract: A power converter includes: at least one pair of first and second semiconductor devices including multiple first and second semiconductor chips, having first and second switching elements providing upper and lower arms, and multiple first and second main terminals having at least one of multiple first and second high potential terminals and multiple first and second low potential terminals; and a bridging member providing an upper and lower coupling portion, together with the first low and second high potential terminals. The first and second semiconductor chips are arranged in line symmetry with respect to first and second axes and in line symmetry with the second axis as a symmetry axis to differentiate the arrangement of the second low potential terminal with respect to the second high potential terminal from the arrangement of the first low potential terminal with respect to the first high potential terminal.
    Type: Grant
    Filed: June 17, 2020
    Date of Patent: December 27, 2022
    Assignee: DENSO CORPORATION
    Inventors: Tetsuya Matsuoka, Yuu Yamahira, Kazuma Fukushima, Noriyuki Kakimoto
  • Patent number: 11509234
    Abstract: A power conversion apparatus has a positive electrode bus bar and a negative electrode bus bar. The power conversion apparatus has a first semiconductor module incorporating an upper-arm switching element and including a positive electrode terminal and a second semiconductor module incorporating a lower-arm switching element and including a negative electrode terminal. The first semiconductor module and the second semiconductor module are placed such that the positive electrode terminal and the negative electrode terminal face each other in a direction orthogonal to a protruding direction. The positive electrode bus bar and the negative electrode bus bar respectively have coexisting parts placed together between the positive electrode terminal and the negative electrode terminal as seen in the protruding direction of power terminals. The coexisting parts are at least partially placed in a space between the positive electrode terminal and the negative electrode terminal.
    Type: Grant
    Filed: February 5, 2020
    Date of Patent: November 22, 2022
    Assignee: DENSO CORPORATION
    Inventors: Tetsuya Matsuoka, Ryota Tanabe, Yuu Yamahira, Kazuma Fukushima, Kosuke Kamiya
  • Publication number: 20220165712
    Abstract: A power module includes three switching elements including a third switching element, a second switching element, and a third switching element. Each of the switching elements includes two positive electrode terminals including a third positive electrode terminal and a second positive electrode terminal, which are connected to a drain electrode. Each of the switching elements includes one negative electrode terminal including a negative electrode terminal connected to a source electrode. In the power module, a total number of the positive electrode terminals and the negative electrode terminals is three.
    Type: Application
    Filed: February 8, 2022
    Publication date: May 26, 2022
    Inventors: TETSUYA MATSUOKA, MITSUNORI KIMURA, KAZUTOSHI SHIOMI
  • Patent number: 11239224
    Abstract: A power conversion device provided with a switching circuit unit including a plurality of upper-arm switching elements connected to positive electrode wiring and a plurality of lower-arm switching elements connected to negative electrode wiring. The power conversion device includes a first semiconductor module incorporating a plurality of the upper-arm switching elements connected together in parallel, a second semiconductor module incorporating a plurality of the lower-arm switching elements connected together in parallel, and a third semiconductor module incorporating the upper-arm switching elements connected together in series and the lower-arm switching elements connected together in series.
    Type: Grant
    Filed: February 10, 2020
    Date of Patent: February 1, 2022
    Assignee: DENSO CORPORATION
    Inventors: Kazuma Fukushima, Yuu Yamahira, Ryota Tanabe, Tetsuya Matsuoka, Kosuke Kamiya, Taijiro Momose
  • Patent number: 11067154
    Abstract: A toroidal continuously variable transmission includes a first disc and a second disc disposed so that the first disc and the second disc are rotatable around a common rotational axis line, the first disc and the second disc facing each other; a power roller which is tiltably disposed between the first disc and the second disc; a pressing device of a loading cam type, the pressing device including a cam plate which is rotatable around the rotational axis line, and a roller unit including at least one roller sandwiched between a cam surface of the second disc and a cam surface of the cam plate; and a cam plate support supporting a back surface of the cam plate, the back surface being opposite to the cam surface of the cam plate, at a radial position conforming to a radial position of at least a portion of the roller unit.
    Type: Grant
    Filed: October 24, 2017
    Date of Patent: July 20, 2021
    Assignee: KAWASAKI JUKOGYO KABUSHIKI KAISHA
    Inventors: Kippei Matsuda, Hideyuki Imai, Kenichiro Tanaka, Tetsuya Matsuoka
  • Publication number: 20210167694
    Abstract: In a power converter, electronic components constituting a power conversion circuit is provided. A capacitor module and a converter case are also provided in the power converter. Fastening members, which include a first fastening member and a second fastening member, are configured to fasten the capacitor module to the converter case. The first and second fastening members are mounted on the inner bottom surface of the converter case. At least one of the electronic components is mounted to the capacitor module and is arranged between the first fastening member and the second fastening member when viewed in a view direction perpendicular to an alignment direction of the first and second fastening members. The view direction is parallel to the inner bottom surface of the converter case.
    Type: Application
    Filed: February 9, 2021
    Publication date: June 3, 2021
    Applicant: DENSO CORPORATION
    Inventors: Masaya TONOMOTO, Tetsuya MATSUOKA, Hiromi ICHIJO
  • Patent number: 10932397
    Abstract: In a power conversion device, each of semiconductor modules of a layered body includes a body portion incorporating a plurality of switching elements and a plurality of power terminals protruding therefrom. The semiconductor modules include upper-arm switching elements and lower-arm switching element that are alternately layered in a layering direction of the layered body. A capacitor is disposed on one side of the layered body and a current sensor is disposed on an opposite side of the layered body, in an orthogonal direction orthogonal to both a protruding direction of the power terminals and the layering direction. Each of the semiconductor modules includes, as the power terminals, two collector terminals connected to a collector electrode of the switching element and one emitter terminal connected to an emitter electrode of the switching element, and the emitter terminal is disposed between the two collector terminals in the orthogonal direction.
    Type: Grant
    Filed: February 11, 2020
    Date of Patent: February 23, 2021
    Assignee: DENSO CORPORATION
    Inventors: Yuu Yamahira, Tetsuya Matsuoka, Kazuma Fukushima
  • Patent number: 10879782
    Abstract: The semiconductor device is provided with a plurality of switching elements connected in parallel to each other, and a plurality of recirculation element connected in parallel to the aforementioned plurality of switching elements. An emitter electrode serves as a reference potential of the aforementioned plurality of switching elements and an anode electrode serves as a reference potential of the aforementioned plurality of recirculation elements are electrically connected by the same plate-like member consisting of a conductive material. The aforementioned switching elements and the aforementioned recirculation elements which are connected in parallel on the lowest potential side are constituted so that the distance from the emitter terminal connected to the aforementioned emitter electrode to the aforementioned recirculation element becomes no greater than the distance from the aforementioned emitter terminal.
    Type: Grant
    Filed: August 2, 2017
    Date of Patent: December 29, 2020
    Assignee: DENSO CORPORATION
    Inventors: Yuu Yamahira, Tetsuya Matsuoka
  • Patent number: 10848078
    Abstract: In a power converter, a control circuit has a speed adjustment resistor that limits a control current to adjust a switching speed of each of first and second switching elements. The speed adjustment resistor has a resistance that varies depending on a voltage at the control electrode of each of the first and second switching elements. A feedback route connects between the control electrode of the first switching element and the control electrode of the second switching element. The feedback route has a resistance that is set to be lower than a value of the resistance of the speed adjustment resistor during a predetermined Miller period of each of the first and second switching elements.
    Type: Grant
    Filed: July 30, 2019
    Date of Patent: November 24, 2020
    Assignee: DENSO CORPORATION
    Inventors: Yuu Yamahira, Tetsuya Matsuoka, Kazuma Fukushima, Akifumi Araragi, Noriyuki Kakimoto, Masakiyo Sumitomo
  • Publication number: 20200321319
    Abstract: A power converter includes: at least one pair of first and second semiconductor devices including multiple first and second semiconductor chips, having first and second switching elements providing upper and lower arms, and multiple first and second main terminals having at least one of multiple first and second high potential terminals and multiple first and second low potential terminals; and a bridging member providing an upper and lower coupling portion, together with the first low and second high potential terminals. The first and second semiconductor chips are arranged in line symmetry with respect to first and second axes and in line symmetry with the second axis as a symmetry axis to differentiate the arrangement of the second low potential terminal with respect to the second high potential terminal from the arrangement of the first low potential terminal with respect to the first high potential terminal.
    Type: Application
    Filed: June 17, 2020
    Publication date: October 8, 2020
    Applicant: DENSO CORPORATION
    Inventors: Tetsuya MATSUOKA, Yuu YAMAHIRA, Kazuma FUKUSHIMA, Noriyuki KAKIMOTO
  • Publication number: 20200176435
    Abstract: A power conversion device provided with a switching circuit unit including a plurality of upper-arm switching elements connected to positive electrode wiring and a plurality of lower-arm switching elements connected to negative electrode wiring. The power conversion device includes a first semiconductor module incorporating a plurality of the upper-arm switching elements connected together in parallel, a second semiconductor module incorporating a plurality of the lower-arm switching elements connected together in parallel, and a third semiconductor module incorporating the upper-arm switching elements connected together in series and the lower-arm switching elements connected together in series.
    Type: Application
    Filed: February 10, 2020
    Publication date: June 4, 2020
    Applicant: DENSO CORPORATION
    Inventors: Kazuma FUKUSHIMA, Yuu YAMAHIRA, Ryota TANABE, Tetsuya MATSUOKA, Kosuke KAMIYA, Taijiro MOMOSE
  • Publication number: 20200177093
    Abstract: A power conversion apparatus has a positive electrode bus bar and a negative electrode bus bar. The power conversion apparatus has a first semiconductor module incorporating an upper-arm switching element and including a positive electrode terminal and a second semiconductor module incorporating a lower-arm switching element and including a negative electrode terminal. The first semiconductor module and the second semiconductor module are placed such that the positive electrode terminal and the negative electrode terminal face each other in a direction orthogonal to a protruding direction. The positive electrode bus bar and the negative electrode bus bar respectively have coexisting parts placed together between the positive electrode terminal and the negative electrode terminal as seen in the protruding direction of power terminals. The coexisting parts are at least partially placed in a space between the positive electrode terminal and the negative electrode terminal.
    Type: Application
    Filed: February 5, 2020
    Publication date: June 4, 2020
    Applicant: DENSO CORPORATION
    Inventors: Tetsuya MATSUOKA, Ryota TANABE, Yuu YAMAHIRA, Kazuma FUKUSHIMA, Kosuke KAMIYA