Patents by Inventor Takaaki Sekine

Takaaki Sekine 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: 20210362716
    Abstract: A driving assistance device includes a guide line detecting unit, a remaining distance acquiring unit, and a braking control unit. The guide line includes a base-point mark which is provided at a position which is separated a first distance from the scheduled stop position. The guide line detecting unit detects the base-point mark at a measurement position of a captured image and sets the detected position of the base-point mark at the measurement position of the captured image as the center of the base-point mark in an extending direction of the guide line when the base-point mark is detected at the measurement position of the captured image. The remaining distance acquiring unit acquires the remaining distance on the basis of the position of the base-point mark set by the guide line detecting unit.
    Type: Application
    Filed: April 23, 2019
    Publication date: November 25, 2021
    Applicants: Hino Motors, Ltd., ISUZU MOTORS LIMITED
    Inventors: Hirofumi YASUI, Motoaki HIBI, Takaaki SEKINE, Masahiro YAMAGUCHI, Masato AMINO
  • Publication number: 20210163006
    Abstract: A driving assistance device includes a guide line detecting unit configured to detect the guide line, a remaining distance acquiring unit configured to acquire a remaining distance to the scheduled stop position, and a braking control unit configured to control deceleration of a vehicle. The guide line detecting unit detects a base-point mark, a curvature of the guide line, and a curvature feature point. The remaining distance acquiring unit acquires the remaining distance on the basis of the position of the base-point mark when the guide line detecting unit has detected the base-point mark, and acquires the remaining distance on the basis of the position of the curvature feature point when the guide line detecting unit has not detect the base-point mark and has detected the curvature feature point.
    Type: Application
    Filed: April 23, 2019
    Publication date: June 3, 2021
    Applicants: Hino Motors, Ltd., ISUZU MOTORS LIMITED
    Inventors: Hirofumi YASUI, Motoaki HIBI, Takaaki SEKINE, Masahiro YAMAGUCHI, Masato AMINO
  • Patent number: 10388596
    Abstract: An electronic part mounting heat-dissipating substrate which includes lead frames of wiring pattern shapes formed by conductor plate and an insulating member 130 which is provided between the lead frames 110, wherein a plate surface of a part arrangement surface of said conductor plate and a top surface of said insulating member at a side of said part arrangement surface form one continuous surface, the lead frames have different thicknesses, the thick lead frame 110H is used for a large current signal and the thin lead frame 110L is used for a small current signal, a plate surface of a back surface of the part arrangement surface and a top surface of the insulating member at a side of the back surface at the part arrangement surface-side are formed in an identical plane.
    Type: Grant
    Filed: November 20, 2015
    Date of Patent: August 20, 2019
    Assignee: NSK LTD.
    Inventors: Shigeru Shimakawa, Takashi Sunaga, Takaaki Sekine, Teruyoshi Kogure, Ryoichi Suzuki
  • Patent number: 10249558
    Abstract: An electronic heat-dissipating substrate including: lead frames of wiring pattern shapes on a conductor plate; and an insulating member between the lead frames. A plate surface of the lead frames and a top surface of the insulating member form one continuous surface. The part arrangement surface is on both surfaces of the electronic part mounting heat-dissipating substrate, a reductant circuit which includes at least similar dual-system circuit is formed on the electronic part mounting heat-dissipating substrate, a first-system circuit of the dual-system circuit is formed on a first surface of the electronic part mounting heat-dissipating substrate, a second-system circuit of the dual-system circuit is formed on a second surface of the electronic part mounting heat-dissipating substrate, and the common lead frames used in a portion of a circuit wiring are used to the first surface and the second surface of the electronic part mounting heat-dissipating substrate.
    Type: Grant
    Filed: November 20, 2015
    Date of Patent: April 2, 2019
    Assignee: NSK LTD.
    Inventors: Shigeru Shimakawa, Takashi Sunaga, Takaaki Sekine, Teruyoshi Kogure, Ryoichi Suzuki
  • Patent number: 10192818
    Abstract: An electronic part mounting heat-dissipating substrate which includes: a conductor plate which is formed on lead frames of wiring pattern shapes; and an insulating member which is provided between the lead frames of the wiring pattern shapes on the conductor plate; wherein a plate surface of a part arrangement surface of the conductor plate and a top surface of the insulating member at a side of the part arrangement surface form one continuous surface, wherein a plate surface of a back surface of the part arrangement surface of the conductor plate and a top surface of the insulating member at a side of the back surface at the part arrangement surface-side are formed in an identical plane, wherein the substrate is formed in a circular shape.
    Type: Grant
    Filed: November 20, 2015
    Date of Patent: January 29, 2019
    Assignee: NSK LTD.
    Inventors: Shigeru Simakawa, Takashi Sunaga, Takaaki Sekine, Teruyoshi Kogure, Ryoichi Suzuki
  • Patent number: 10093352
    Abstract: A motor controller, an electric power steering device using the motor controller, and a vehicle using the motor controller are provided. The motor controller includes plural hardware sets configured to operate in a normal state and to output a motor current, a control operation device configured to control the plurality of hardware sets commonly, an electric motor configured to operate with motor current output from each of the plurality of hardware sets, and an abnormality diagnosis unit configured to diagnose an abnormality of each of the plurality of hardware sets. In the control device, when there is an abnormal hardware set that has been diagnosed by the abnormality diagnosis unit, the control operation device stops an operation of the abnormal hardware set that has been diagnosed, and continues driving of the electric motor with a normal hardware set.
    Type: Grant
    Filed: December 13, 2013
    Date of Patent: October 9, 2018
    Assignee: NSK LTD.
    Inventors: Kenji Mori, Kotaro Tagami, Hiroki Sugawara, Shigeo Shinohara, Takaaki Sekine, Takeshi Senba, Shuji Endo
  • Patent number: 10096572
    Abstract: A power semiconductor module that comprises plural arrangements of power semiconductor elements comprising a power semiconductor bare chip which one electrode portion thereof is connected to a metal plate which at least one external connecting terminal is formed and other external connecting terminals which are electrically connected to other electrode portions of the power semiconductor bare chip, and that are contained in a same package, comprises wherein the power semiconductor elements are basically same outline, electrodes of the bare chip of the power semiconductor elements are mutually connected between the power semiconductor elements with a metal connector or a wiring, and the package is a resin mold package that seals the power semiconductor elements with an electrical insulating resin.
    Type: Grant
    Filed: December 2, 2015
    Date of Patent: October 9, 2018
    Assignee: NSK LTD.
    Inventors: Shigeru Shimakawa, Takashi Sunaga, Takaaki Sekine
  • Patent number: 9944312
    Abstract: An electronic control unit (50) includes power modules (60A), (60B), an input and output board (70) on which an input connector (71) and an output connector (72) are mounted, and a control board (80). The input and output board (70) and the control board (80) are arranged to vertically face each other. A discrete part (73) that is taller in height (H1), (H2), (H3) than a half (D/2) a distance (D) between the input and output board (70) and the control board (80) is mounted only on a face (70e), of the input and output board (70), facing the control board (80).
    Type: Grant
    Filed: December 12, 2014
    Date of Patent: April 17, 2018
    Assignee: NSK Ltd.
    Inventors: Yoshikatsu Inada, Kotaro Tagami, Takaaki Sekine
  • Publication number: 20170338201
    Abstract: [Problem] An object of the present invention is to miniaturize and integrate plural power semiconductors in an electronic circuit in a low cost without occurrence of a problem of a heat dissipation or the like.
    Type: Application
    Filed: December 2, 2015
    Publication date: November 23, 2017
    Applicant: NSK LTD.
    Inventors: Shigeru SHIMAKAWA, Takashi SUNAGA, Takaaki SEKINE
  • Publication number: 20170309555
    Abstract: [Problem] An object of the present invention is to provide an electronic part mounting heat-dissipating substrate which enables a circuit for which a power semiconductor in which a large current flows is used to reduce the wiring resistances of a large power operation and improve the heat dissipation.
    Type: Application
    Filed: November 20, 2015
    Publication date: October 26, 2017
    Applicant: NSK LTD.
    Inventors: Shigeru SHIMAKAWA, Takashi SUNAGA, Takaaki SEKINE, Teruyoshi KOGURE, Ryoichi SUZUKI
  • Publication number: 20170309556
    Abstract: An electronic heat-dissipating substrate including: lead frames of wiring pattern shapes on a conductor plate; and an insulating member between the lead frames. A plate surface of the lead frames and a top surface of the insulating member form one continuous surface. The part arrangement surface is on both surfaces of the electronic part mounting heat-dissipating substrate, a reductant circuit which includes at least similar dual-system circuit is formed on the electronic part mounting heat-dissipating substrate, a first-system circuit of the dual-system circuit is formed on a first surface of the electronic part mounting heat-dissipating substrate, a second-system circuit of the dual-system circuit is formed on a second surface of the electronic part mounting heat-dissipating substrate, and the common lead frames used in a portion of a circuit wiring are used to the first surface and the second surface of the electronic part mounting heat-dissipating substrate.
    Type: Application
    Filed: November 20, 2015
    Publication date: October 26, 2017
    Applicant: NSK Ltd.
    Inventors: Shigeru SHIMAKAWA, Takashi SUNAGA, Takaaki SEKINE, Teruyoshi KOGURE, Ryoichi SUZUKI
  • Publication number: 20170294374
    Abstract: An electronic part mounting heat-dissipating substrate which includes: a conductor plate which is formed on lead frames of wiring pattern shapes; and an insulating member which is provided between the lead frames of the wiring pattern shapes on the conductor plate; wherein a plate surface of a part arrangement surface of the conductor plate and a top surface of the insulating member at a side of the part arrangement surface form one continuous surface, wherein a plate surface of a back surface of the part arrangement surface of the conductor plate and a top surface of the insulating member at a side of the back surface at the part arrangement surface-side are formed in an identical plane, wherein the substrate is formed in a circular shape
    Type: Application
    Filed: November 20, 2015
    Publication date: October 12, 2017
    Applicant: NSK Ltd.
    Inventors: Shigeru SIMAKAWA, Takashi SUNAGA, Takaaki SEKINE, Teruyoshi KOGURE, Ryoichi SUZUKI
  • Patent number: 9634587
    Abstract: A motor control apparatus includes a motor current shutoff unit inserted between a multi-phase inverter circuit and a multi-phase electric motor to shut off a current for each of plural phases, the inverter circuit including an arm for each of the plural phases, a redundant arm unit including one or more arms, a connection selecting unit selecting which one of windings of the electric motor is to be connected to each of the one or more arms of the redundant arm unit, an abnormal arm detection unit detecting an abnormality in each of the plural phases of the inverter circuit, and an abnormality control unit shutting off connection between an abnormal arm and the motor when the abnormal arm detection unit detects the abnormal arm, and connecting the one or more arms of the redundant arm unit to a winding of the motor shut off.
    Type: Grant
    Filed: December 13, 2013
    Date of Patent: April 25, 2017
    Assignee: NSK Ltd.
    Inventors: Yusuke Kikuchi, Atsushi Horikoshi, Satoshi Ozaki, Yoshihiro Aosaki, Takeshi Senba, Hisayoshi Koiwai, Shigeo Shinohara, Kenji Mori, Masahiro Okutani, Takaaki Sekine
  • Publication number: 20160362127
    Abstract: An electronic controlling unit includes a housing configured to accommodate a power module, an input/output board, and a control board. The housing includes a mounting portion and a ceiling portion opposed to each other with a spacing therebetween in one direction, and four side wall portions located between the mounting portion and the ceiling portion. At least one of the at least four side wall portions is an inclined side wall portion inclined inwardly at an acute angle with respect to the mounting portion.
    Type: Application
    Filed: December 12, 2014
    Publication date: December 15, 2016
    Inventors: Yoshikatsu INADA, Kotaro TAGAMI, Takaaki SEKINE
  • Publication number: 20160355210
    Abstract: An electronic control unit, an electric power steering device, and a vehicle are provided, such that the power loss from output terminals of two power modules including first and second power modules to the electric current joining point is suppressed. The electronic control unit includes an input and output board connected with the first and second power modules. First and second conductor patterns respectively connected with output terminals of the first and second power modules and extending independently of each other are formed in the input and output board. A terminal is mounted on the output connector, the terminal including first and second board connection portions respectively connected with the first and second conductor patterns.
    Type: Application
    Filed: December 12, 2014
    Publication date: December 8, 2016
    Inventors: Yoshikatsu INADA, Kotaro TAGAMI, Takaaki SEKINE
  • Publication number: 20160311462
    Abstract: An electronic control unit (50) includes power modules (60A), (60B), an input and output board (70) on which an input connector (71) and an output connector (72) are mounted, and a control board (80). The input and output board (70) and the control board (80) are arranged to vertically face each other. A discrete part (73) that is taller in height (H1), (H2), (H3) than a half (D/2) a distance (D) between the input and output board (70) and the control board (80) is mounted only on a face (70e), of the input and output board (70), facing the control board (80).
    Type: Application
    Filed: December 12, 2014
    Publication date: October 27, 2016
    Inventors: Yoshikatsu INADA, Kotaro TAGAMI, Takaaki SEKINE
  • Publication number: 20160200355
    Abstract: A motor controller, an electric power steering device using the motor controller, and a vehicle using the motor controller are provided. The motor controller includes plural hardware sets configured to operate in a normal state and to output a motor current, a control operation device configured to control the plurality of hardware sets commonly, an electric motor configured to operate with motor current output from each of the plurality of hardware sets, and an abnormality diagnosis unit configured to diagnose an abnormality of each of the plurality of hardware sets. In the control device, when there is an abnormal hardware set that has been diagnosed by the abnormality diagnosis unit, the control operation device stops an operation of the abnormal hardware set that has been diagnosed, and continues driving of the electric motor with a normal hardware set.
    Type: Application
    Filed: December 13, 2013
    Publication date: July 14, 2016
    Inventors: Kenji MORI, Kotaro TAGAMI, Hiroki SUGAWARA, Shigeo SHINOHARA, Takaaki SEKINE, Takeshi SENBA, Shuji ENDO
  • Publication number: 20160134212
    Abstract: A motor control apparatus includes a motor current shutoff unit inserted between a multi-phase inverter circuit and a multi-phase electric motor to shut off a current for each of plural phases, the inverter circuit including an arm for each of the plural phases, a redundant arm unit including one or more arms, a connection selecting unit selecting which one of windings of the electric motor is to be connected to each of the one or more arms of the redundant arm unit, an abnormal arm detection unit detecting an abnormality in each of the plural phases of the inverter circuit, and an abnormality control unit shutting off connection between an abnormal arm and the motor when the abnormal arm detection unit detects the abnormal arm, and connecting the one or more arms of the redundant arm unit to a winding of the motor shut off.
    Type: Application
    Filed: December 13, 2013
    Publication date: May 12, 2016
    Inventors: Yusuke Kikuchi, Atsushi Horikoshi, Satoshi Ozaki, Yoshihiro Aosaki, Takeshi Senba, Hisayoshi Koiwai, Shigeo Shinohara, Kenji Mori, Masahiro Okutani, Takaaki Sekine
  • Patent number: 8627918
    Abstract: An electric power steering device includes a steering column in which a steering shaft for transmitting a steering torque is built, an electric motor for transmitting a steering assist force through a gear mechanism in a gearbox to the steering shaft, and a control device for driving and controlling the electric motor. The control device includes a drive circuit module having a switching element for driving the electric motor, and a control module that is mounted on the gearbox for controlling the drive circuit module. The drive circuit module is mounted on a housing of the electric motor.
    Type: Grant
    Filed: October 29, 2010
    Date of Patent: January 14, 2014
    Assignee: NSK Ltd.
    Inventors: Takaaki Sekine, Shin Kumagai, Yusuke Ota, Yasuhiro Iwasaki, Yousuke Imamura, Yusuke Kikuchi
  • Publication number: 20120273292
    Abstract: There is provided an electric power steering device for solving unsolved problems with ensuring advantages of a control device of motor housing mounting type and gearbox mounting type. An electric power steering device includes: a steering column in which a steering shaft for transmitting a steering torque is built; an electric motor for transmitting a steering assist force through a gear mechanism in a gearbox to the steering shaft; and a control device for driving and controlling the electric motor. The control device including at least: a drive circuit module including a switching element for driving the electric motor, and mounted on a housing of the electric motor; and a control module, mounted on the gearbox, for controlling the drive circuit module.
    Type: Application
    Filed: October 29, 2010
    Publication date: November 1, 2012
    Applicant: NSK LTD.
    Inventors: Takaaki Sekine, Shin Kumagai, Yusuke Ota, Yasuhiro Iwasaki, Yousuke Imamura, Yusuke Kikuchi