Patents by Inventor Takeshi Matsumoto

Takeshi Matsumoto 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).

  • Publication number: 20230198289
    Abstract: A power supply control apparatus includes: a first system capable of supplying electric power from a first power supply to a first load; a second system capable of supplying electric power from a second power supply to a load group including a second load and a third load having consumed electric power smaller than that of the second load; a plurality of load switches as defined herein; and a control unit configured to control the load switches so that backup control performed by the second system is executed by the electric power supply from the second power supply, in a case where an occurrence of a ground fault in the first system is detected, and when the control unit inspects as to whether the backup control can be executed, the control unit connects the load switch corresponding to the third load of the load group to execute the inspection.
    Type: Application
    Filed: March 18, 2022
    Publication date: June 22, 2023
    Applicant: DENSO TEN Limited
    Inventors: Takeshi MATSUMOTO, Daiki HAKUSHIMA, Shunsuke KOBAYASHI
  • Publication number: 20230198290
    Abstract: A power supply control device includes: a first system configured to supply electric power from a first power supply to a first load group; a second system configured to supply electric power from a second power supply to a second load group; a plurality of load switches configured to switch an electric power supply to each load of the first load group and the second load group; and a control unit configured to control the plurality of load switches such that electric power is supplied from the second power supply to a backup load included in at least one of the first load group and the second load group in a predetermined backup state, wherein the control unit detects a state of charge of the second power supply, and increases, in the predetermined backup state, number of the load switches to be connected as the state of charge is higher.
    Type: Application
    Filed: March 21, 2022
    Publication date: June 22, 2023
    Applicant: DENSO TEN Limited
    Inventors: Shunsuke KOBAYASHI, Takeshi MATSUMOTO
  • Patent number: 11682897
    Abstract: A power supply control apparatus includes: a first system configured to supply electric power of a first power supply to a first load; a second system configured to supply electric power of a second power supply to a second load; an inter-system switch capable of connecting the first system to the second system and disconnecting the first system from the second system; a battery switch capable of connecting the second power supply to the second system and disconnecting the second power supply from the second system; a primary ground fault detection unit configured to cut off the inter-system switch and conduct the battery switch when a ground fault of the first system or the second system is detected by the primary ground fault detection unit; a secondary ground fault detection unit as defined herein; and a failure determination unit as defined herein.
    Type: Grant
    Filed: March 21, 2022
    Date of Patent: June 20, 2023
    Assignee: DENSO TEN Limited
    Inventors: Daiki Hakushima, Hiroshi Matsumoto, Takeshi Matsumoto
  • Publication number: 20230155411
    Abstract: A power supply apparatus includes: a first system configured to supply electric power of a first power supply to a first load; a second system configured to supply electric power of a second power supply to a second load; a connection unit capable of connecting and disconnecting the first system and the second system; a second system switch capable of connecting the second power supply to the second system; and an inspection unit configured to perform inspection as to whether electric power is capable of being supplied from the second power supply to the second load, and, when a voltage of the second power supply is not equal to a voltage of the first power supply, the inspection unit controls the first power supply as defined herein and conducts the second system switch to perform the inspection by stepping down or up the voltage of the first power supply.
    Type: Application
    Filed: March 18, 2022
    Publication date: May 18, 2023
    Applicant: DENSO TEN Limited
    Inventors: Takeshi MATSUMOTO, Daiki HAKUSHIMA
  • Patent number: 11652361
    Abstract: A power supply apparatus includes: a first system configured to supply electric power of a first power supply to a first load; a second system configured to supply electric power of a second power supply to a second load; a connection unit capable of connecting and disconnecting the first system and the second system; a second system switch capable of connecting the second power supply to the second system; and an inspection unit configured to perform inspection as to whether electric power is capable of being supplied from the second power supply to the second load, and, when a voltage of the second power supply is not equal to a voltage of the first power supply, the inspection unit controls the first power supply as defined herein and conducts the second system switch to perform the inspection by stepping down or up the voltage of the first power supply.
    Type: Grant
    Filed: March 18, 2022
    Date of Patent: May 16, 2023
    Assignee: DENSO TEN Limited
    Inventors: Takeshi Matsumoto, Daiki Hakushima
  • Publication number: 20230099869
    Abstract: The propulsion system have a load change detecting unit detecting a load change and an operating point control unit controlling power operating points defined using a torque T and a rotation number Ne. The operating point control unit calculates target power operating points 44 and 54 corresponding to the load after change for first power operating points 41 and 51 that are current power operating points in a case in which a change in the load is detected by the load change detecting unit. By changing the fuel flow in a range not exceeding a predetermined fuel line, the operating point control unit moves the power operating points from first power operating points 41 and 51 to second power operating points 42 and 52, third power operating points 43 and 53, and target power operating points 44 and 54 in order.
    Type: Application
    Filed: September 16, 2022
    Publication date: March 30, 2023
    Inventors: Akinori Kita, Takeshi Matsumoto
  • Publication number: 20230084190
    Abstract: An optical integrated device includes a substrate and a waveguide that has a hollow structure. The waveguide includes a first waveguide and a second waveguide that is optically coupled to the first waveguide and that has a smaller relative refractive index difference than that of the first waveguide and converts a mode diameter to a mode diameter of an optical fiber in accordance with travelling of light. The optical integrated device includes a dent portion that is formed in the vicinity of the dicing line on the substrate such that the width of the output end surface is smaller than the core width of the optical fiber that is optically coupled to the output end surface in the state in which the dicing end surface of the substrate protrudes farther than the output end surface of the second waveguide in the axial direction of the optical waveguide.
    Type: Application
    Filed: August 10, 2022
    Publication date: March 16, 2023
    Applicant: FUJITSU OPTICAL COMPONENTS LIMITED
    Inventors: Tatsuya ITO, Takeshi MATSUMOTO
  • Publication number: 20230085180
    Abstract: A power supply control apparatus includes: a first system configured to supply electric power of a first power supply to a first load; a second system configured to supply electric power of a second power supply to a second load; an inter-system switch capable of connecting the first system to the second system and disconnecting the first system from the second system; a battery switch capable of connecting the second power supply to the second system and disconnecting the second power supply from the second system; a primary ground fault detection unit configured to cut off the inter-system switch and conduct the battery switch when a ground fault of the first system or the second system is detected by the primary ground fault detection unit; a secondary ground fault detection unit as defined herein; and a failure determination unit as defined herein.
    Type: Application
    Filed: March 21, 2022
    Publication date: March 16, 2023
    Applicant: DENSO TEN Limited
    Inventors: Daiki HAKUSHIMA, Hiroshi MATSUMOTO, Takeshi MATSUMOTO
  • Publication number: 20230082895
    Abstract: Optical device, that is provided between optical output element and optical propagation element, includes: first lens circuit configured to include one or more lenses through which output light of the optical output element passes; and second lens circuit configured to include one or more lenses and guide output light of the first lens circuit to the optical propagation element. When F11 represents distance between the optical output element and the first lens circuit, F12 represents distance between the first lens circuit and first beam waist position of the first lens circuit, F21 represents distance between the first beam waist position and the second lens circuit, and F22 represents distance between the second lens circuit and second beam waist position of the second lens circuit, F11 and F22 are equal to each other and F12 and F21 are equal to each other.
    Type: Application
    Filed: August 8, 2022
    Publication date: March 16, 2023
    Applicant: Fujitsu Optical Components Limited
    Inventor: Takeshi Matsumoto
  • Publication number: 20230077421
    Abstract: A power supply control apparatus includes: a first system configured to supply electric power of a first power supply to a first load; a second system configured to supply electric power of a second power supply to a second load; an inter-system switch provided in a connection path that connects the first system to the second system, and capable of connecting the first system to the second system and disconnecting the first system from the second system; a primary ground fault detection unit configured to cut off the inter-system switch when a ground fault of the first system or the second system is detected by the primary ground fault detection unit; a secondary ground fault detection unit as defined herein; and a mask processing unit as defined herein.
    Type: Application
    Filed: March 21, 2022
    Publication date: March 16, 2023
    Applicant: DENSO TEN Limited
    Inventors: Takeshi MATSUMOTO, Daiki HAKUSHIMA
  • Publication number: 20230076465
    Abstract: A load fluctuation detection unit that detects a load fluctuation of an aircraft, and an operating point control unit that controls a power operating point defined by a torque and rotation speed based on a flight state. The operating point control unit sets a target power operating point (62) for coping with a load with respect to an initial power operating point (61) in an operating point map (40) when the load has fluctuated. The operating point control unit moves the power operating point from the initial power operating point (61) on a first operating line (41) to the target power operating point (62) on a second operating line (42), to a return power operating point (63) on the first operating line (41) while keeping a torque T constant, and then to the initial power operating point (61) along the first operating line (41).
    Type: Application
    Filed: August 30, 2022
    Publication date: March 9, 2023
    Inventors: Akinori Kita, Takeshi Matsumoto
  • Patent number: 11591099
    Abstract: Technology for operating an engine smoothly is provided. In an aircraft propulsion system, a controller causes at least a first engine among the plurality of engines to be stopped and causes a second engine, which has not been stopped, to be operated when an aircraft is flying in a prescribed flight mode and causes the first engine to be operated and causes the second engine to be stopped when a detector detects that the temperature related to the first engine is less than or equal to a first prescribed temperature.
    Type: Grant
    Filed: December 1, 2021
    Date of Patent: February 28, 2023
    Assignee: HONDA MOTOR CO., LTD.
    Inventors: Akinori Kita, Takeshi Matsumoto, Daiko Tsutsumi
  • Patent number: 11588346
    Abstract: A power supply control device includes a first system, a second system, an inter-system switch, a battery switch and a controller. The controller turns off an inter-system switch that connects and disconnects the systems and turns on a battery switch that connects and disconnects a second power supply to and from the second system in response to an abnormality of a first power supply or the second power supply being detected and thereafter turn on the inter-system switch and turns off the battery switch in response to determination that there is no abnormality in the power supplies. Before turning on the inter-system switch, when voltage difference between the power supplies is equal to or larger than a threshold, the controller performs convergence control, and after determining that there is no abnormality in the power supplies, the controller keeps the battery switch turned off while performing the convergence control.
    Type: Grant
    Filed: September 20, 2021
    Date of Patent: February 21, 2023
    Assignee: DENSO TEN Limited
    Inventors: Daiki Hakushima, Takeshi Matsumoto
  • Publication number: 20230008278
    Abstract: A substrate processing apparatus 1 includes a controller 61 configured to perform a first recipe and a second recipe in parallel. Each of the first recipe and the second recipe includes a first transfer processing of transferring a substrate from a transit unit 14 to a liquid processing unit 17, a liquid processing, a second transfer processing of transferring the substrate from the liquid processing unit 17 to a drying unit 18 and a drying processing. The controller 61 determines, while the first recipe on a first substrate in substrates is being performed, when the second recipe on a second substrate in the substrates is started, a start timing of the first transfer processing of the second substrate such that a time period of the second transfer processing of the first substrate does not overlap with a time period of the second transfer processing of the second substrate.
    Type: Application
    Filed: November 27, 2020
    Publication date: January 12, 2023
    Inventors: Shuhei Goto, Tomohiro Kaneko, Takeshi Matsumoto
  • Publication number: 20220402087
    Abstract: A substrate processing method of grinding a first substrate in a combined substrate in which the first substrate and a second substrate are bonded to each other includes measuring a total thickness distribution of the combined substrate; measuring a thickness distribution of the first substrate; calculating a thickness distribution of the second substrate by subtracting the thickness distribution of the first substrate from the total thickness distribution of the combined substrate; deciding a relative inclination between a substrate holder configured to hold the combined substrate and a grinder configured to grind the combined substrate, based on the thickness distribution of the second substrate; and grinding the first substrate while holding the combined substrate at the inclination which is decided.
    Type: Application
    Filed: November 2, 2020
    Publication date: December 22, 2022
    Inventors: Nobutaka FUKUNAGA, Tomohiro KANEKO, Takeshi MATSUMOTO
  • Publication number: 20220402094
    Abstract: A substrate processing method includes measuring a first thickness distribution of a first substrate in a first one of multiple combined substrates before being subjected to a finishing grinding; measuring a second thickness distribution of the first substrate in a second one of the multiple combined substrates before being subjected to the finishing grinding; deciding a relative inclination between a substrate holder configured to hold the second one of the multiple combined substrates and a grinder configured to perform the finishing grinding on the corresponding combined substrate, based on first difference data between the first thickness distribution and the second thickness distribution; and performing finishing grinding on the first substrate in the second one of the multiple combined substrates while holding the second one of the multiple combined substrates at the inclination which is decided.
    Type: Application
    Filed: November 2, 2020
    Publication date: December 22, 2022
    Inventors: Nobutaka FUKUNAGA, Takeshi MATSUMOTO, Tomohiro KANEKO
  • Publication number: 20220368153
    Abstract: A power supply control device includes a first system, a second system, an inter-system switch, a battery switch and a controller. The controller turns off an inter-system switch that connects and disconnects the systems and turns on a battery switch that connects and disconnects a second power supply to and from the second system in response to an abnormality of a first power supply or the second power supply being detected and thereafter turn on the inter-system switch and turns off the battery switch in response to determination that there is no abnormality in the power supplies. Before turning on the inter-system switch, when voltage difference between the power supplies is equal to or larger than a threshold, the controller performs convergence control, and after determining that there is no abnormality in the power supplies, the controller keeps the battery switch turned off while performing the convergence control.
    Type: Application
    Filed: September 20, 2021
    Publication date: November 17, 2022
    Applicant: DENSO TEN Limited
    Inventors: Daiki HAKUSHIMA, Takeshi MATSUMOTO
  • Publication number: 20220364380
    Abstract: There is provided a conveying device that can support a car weight with a mechanism lighter in weight. A driving device (6) of a conveying device that lifts and lowers a loading-weight support along a rail (3) includes a wheel unit (13) and a link (14). The wheel unit (13) drives to rotate a driving wheel (15) in contact with a guide surface (11) to lift and lower the loading-weight support. The link (14) includes a first joint (17) connected to the wheel unit (13) and a second joint (18) rotatably supported by the loading-weight support. The second joint (18) is arranged in a position further apart from the guide surface (11) than the first joint (17), and above the first joint (17). The link (14) is arranged such that a straight line connecting the first joint (17) and the second joint (18) is tilted smaller than 45 degrees.
    Type: Application
    Filed: August 27, 2019
    Publication date: November 17, 2022
    Applicants: Mitsubishi Electric Corporation, Tokyo Institute of Technology
    Inventors: Yusuke SUGAHARA, Yukio TAKEDA, Daisuke MATSUURA, Takahiro ISHII, Takeshi MATSUMOTO, Masayuki KAKIO, Daisuke NAKAZAWA
  • Patent number: D984965
    Type: Grant
    Filed: February 24, 2021
    Date of Patent: May 2, 2023
    Assignee: SUMITOMO WIRING SYSTEMS, LTD.
    Inventors: Yasushi Okayasu, Takeshi Matsumoto, Shinichiro Morishita
  • Patent number: D990426
    Type: Grant
    Filed: February 24, 2021
    Date of Patent: June 27, 2023
    Assignee: SUMITOMO WIRING SYSTEMS, LTD.
    Inventors: Yasushi Okayasu, Takeshi Matsumoto, Shinichiro Morishita