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).
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Patent number: 11572070Abstract: 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: GrantFiled: April 23, 2019Date of Patent: February 7, 2023Assignees: Hino Motors, Ltd., ISUZU MOTORS LIMITEDInventors: Hirofumi Yasui, Motoaki Hibi, Takaaki Sekine, Masahiro Yamaguchi, Masato Amino
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Publication number: 20210362716Abstract: 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: ApplicationFiled: April 23, 2019Publication date: November 25, 2021Applicants: Hino Motors, Ltd., ISUZU MOTORS LIMITEDInventors: Hirofumi YASUI, Motoaki HIBI, Takaaki SEKINE, Masahiro YAMAGUCHI, Masato AMINO
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Publication number: 20210163006Abstract: 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: ApplicationFiled: April 23, 2019Publication date: June 3, 2021Applicants: Hino Motors, Ltd., ISUZU MOTORS LIMITEDInventors: Hirofumi YASUI, Motoaki HIBI, Takaaki SEKINE, Masahiro YAMAGUCHI, Masato AMINO
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Patent number: 10388596Abstract: 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: GrantFiled: November 20, 2015Date of Patent: August 20, 2019Assignee: NSK LTD.Inventors: Shigeru Shimakawa, Takashi Sunaga, Takaaki Sekine, Teruyoshi Kogure, Ryoichi Suzuki
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Patent number: 10249558Abstract: 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: GrantFiled: November 20, 2015Date of Patent: April 2, 2019Assignee: NSK LTD.Inventors: Shigeru Shimakawa, Takashi Sunaga, Takaaki Sekine, Teruyoshi Kogure, Ryoichi Suzuki
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Patent number: 10192818Abstract: 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: GrantFiled: November 20, 2015Date of Patent: January 29, 2019Assignee: NSK LTD.Inventors: Shigeru Simakawa, Takashi Sunaga, Takaaki Sekine, Teruyoshi Kogure, Ryoichi Suzuki
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Patent number: 10093352Abstract: 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: GrantFiled: December 13, 2013Date of Patent: October 9, 2018Assignee: NSK LTD.Inventors: Kenji Mori, Kotaro Tagami, Hiroki Sugawara, Shigeo Shinohara, Takaaki Sekine, Takeshi Senba, Shuji Endo
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Patent number: 10096572Abstract: 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: GrantFiled: December 2, 2015Date of Patent: October 9, 2018Assignee: NSK LTD.Inventors: Shigeru Shimakawa, Takashi Sunaga, Takaaki Sekine
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Patent number: 9944312Abstract: 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: GrantFiled: December 12, 2014Date of Patent: April 17, 2018Assignee: NSK Ltd.Inventors: Yoshikatsu Inada, Kotaro Tagami, Takaaki Sekine
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Publication number: 20170338201Abstract: [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: ApplicationFiled: December 2, 2015Publication date: November 23, 2017Applicant: NSK LTD.Inventors: Shigeru SHIMAKAWA, Takashi SUNAGA, Takaaki SEKINE
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Publication number: 20170309555Abstract: [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: ApplicationFiled: November 20, 2015Publication date: October 26, 2017Applicant: NSK LTD.Inventors: Shigeru SHIMAKAWA, Takashi SUNAGA, Takaaki SEKINE, Teruyoshi KOGURE, Ryoichi SUZUKI
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Publication number: 20170309556Abstract: 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: ApplicationFiled: November 20, 2015Publication date: October 26, 2017Applicant: NSK Ltd.Inventors: Shigeru SHIMAKAWA, Takashi SUNAGA, Takaaki SEKINE, Teruyoshi KOGURE, Ryoichi SUZUKI
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Publication number: 20170294374Abstract: 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 shapeType: ApplicationFiled: November 20, 2015Publication date: October 12, 2017Applicant: NSK Ltd.Inventors: Shigeru SIMAKAWA, Takashi SUNAGA, Takaaki SEKINE, Teruyoshi KOGURE, Ryoichi SUZUKI
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Patent number: 9634587Abstract: 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: GrantFiled: December 13, 2013Date of Patent: April 25, 2017Assignee: NSK Ltd.Inventors: Yusuke Kikuchi, Atsushi Horikoshi, Satoshi Ozaki, Yoshihiro Aosaki, Takeshi Senba, Hisayoshi Koiwai, Shigeo Shinohara, Kenji Mori, Masahiro Okutani, Takaaki Sekine
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Publication number: 20160362127Abstract: 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: ApplicationFiled: December 12, 2014Publication date: December 15, 2016Inventors: Yoshikatsu INADA, Kotaro TAGAMI, Takaaki SEKINE
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Publication number: 20160355210Abstract: 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: ApplicationFiled: December 12, 2014Publication date: December 8, 2016Inventors: Yoshikatsu INADA, Kotaro TAGAMI, Takaaki SEKINE
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Publication number: 20160311462Abstract: 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: ApplicationFiled: December 12, 2014Publication date: October 27, 2016Inventors: Yoshikatsu INADA, Kotaro TAGAMI, Takaaki SEKINE
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Publication number: 20160200355Abstract: 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: ApplicationFiled: December 13, 2013Publication date: July 14, 2016Inventors: Kenji MORI, Kotaro TAGAMI, Hiroki SUGAWARA, Shigeo SHINOHARA, Takaaki SEKINE, Takeshi SENBA, Shuji ENDO
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Publication number: 20160134212Abstract: 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: ApplicationFiled: December 13, 2013Publication date: May 12, 2016Inventors: Yusuke Kikuchi, Atsushi Horikoshi, Satoshi Ozaki, Yoshihiro Aosaki, Takeshi Senba, Hisayoshi Koiwai, Shigeo Shinohara, Kenji Mori, Masahiro Okutani, Takaaki Sekine
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Patent number: 8627918Abstract: 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: GrantFiled: October 29, 2010Date of Patent: January 14, 2014Assignee: NSK Ltd.Inventors: Takaaki Sekine, Shin Kumagai, Yusuke Ota, Yasuhiro Iwasaki, Yousuke Imamura, Yusuke Kikuchi