Patents by Inventor Shigehiro Kataoka
Shigehiro Kataoka 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: 10947985Abstract: A pressure sensor device includes a pressure sensor, a sensor case, first and second terminals protruding from the pressure sensor in a first direction, a third terminal protruding from the pressure sensor in a second direction, a fourth terminal protruding from the pressure sensor in the second direction, a first capacitor on one side of the pressure sensor, a second capacitor on the other side of the pressure sensor, a first lead line extending out of the sensor case from the first terminal, a second lead line extending out of the sensor case from the second terminal, and a third lead line extending out of the sensor case from a side edge between the first terminal and the second terminal.Type: GrantFiled: July 24, 2017Date of Patent: March 16, 2021Assignee: NIDEC TOSOK CORPORATIONInventors: Yoshiyuki Kobayashi, Shigehiro Kataoka
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Patent number: 10948373Abstract: A sensor case of pressure sensor device includes a sensor housing portion, a first terminal housing portion that extends from the sensor housing portion in a first direction, and a second terminal housing portion that extends from the sensor housing portion in a second direction. The first terminal housing portion includes a first upper-side opening that opens upward, and a first lower-side opening that opens downward. The second terminal housing portion includes a second upper-side opening that opens upward, and a second lower-side opening that opens downward. A first terminal includes a first exposed portion including an upper surface exposed to outside of the first terminal housing portion through the first upper-side opening and a lower surface exposed to outside of the first terminal housing portion through the first lower-side opening.Type: GrantFiled: July 25, 2017Date of Patent: March 16, 2021Assignee: NIDEC TOSOK CORPORATIONInventors: Yoshihiro Kamimura, Yoshiyuki Kobayashi, Shigehiro Kataoka
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Patent number: 10935448Abstract: A pressure detection device includes a base plate having first and second principal surfaces and a through-hole in which a fluid to be measured flows. A pressure sensor arranged above the first principal surface to cover the through-hole outputs an electric signal corresponding to the pressure of the fluid. A housing includes a recessed portion and first and second capacitor holders. The recessed portion retains the base plate and first and second lead terminals electrically connected to the pressure sensor and allows a part of each of the lead terminals to be exposed. The capacitor holders each includes an outwardly opened recess and together hold a capacitor electrically connected to the lead terminals. Each of the capacitor holders obliquely protrudes from an outer shape of the housing to both sides when viewed in a plan view in a direction from the first principal surface to the second principal surface.Type: GrantFiled: February 10, 2017Date of Patent: March 2, 2021Assignees: NIDEK TOSOK CORPORATION, NIPPON SEIKI CO., LTD.Inventors: Yoshiyuki Kobayashi, Shigehiro Kataoka, Yoshihiro Kamimura
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Publication number: 20200319048Abstract: A pressure detection apparatus includes a base plate including a first surface, a second surface, and an opening, a pressure sensor disposed on the first surface so as to cover the opening of the base plate and outputting an electric signal according to a pressure of measured fluid inside the opening, a lead terminal electrically connected to the pressure sensor, a housing holding the base plate and the lead terminal and including an exposed portion in which a portion of the lead terminal is exposed, and a capacitor protecting the pressure sensor. The housing includes a capacitor housing portion, the capacitor being electrically connected to the lead terminal inside the exposed portion, and a positioning portion that positions, inside the capacitor housing portion, the capacitor that has been mounted in the capacitor housing portion.Type: ApplicationFiled: May 24, 2017Publication date: October 8, 2020Applicant: Nidec Tosok CorporationInventors: Yoshiyuki KOBAYASHI, Shigehiro KATAOKA, Yoshihiro KAMIMURA
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Publication number: 20200313505Abstract: An electric oil pump includes a pump part; a motor driving the pump part and having a rotor, a stator, and a motor shaft; a housing housing the motor; a control board including a drive circuit controlling driving of the motor; and a sensor board equipped with a rotation sensor detecting a rotation angle of the rotor of the motor. The motor shaft has one axial side connected to the pump part. The control board includes a sensor connection part performing electrical connection with the sensor board. The control board is arranged on a radially outer side with respect to the motor in a position of extending in an axial direction. The sensor board is arranged on the other axial side with respect to the motor shaft, and is arranged in a direction intersecting the axial direction.Type: ApplicationFiled: March 25, 2020Publication date: October 1, 2020Applicant: NIDEC TOSOK CORPORATIONInventors: Yoshiyuki KOBAYASHI, Shigehiro KATAOKA
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Publication number: 20200308999Abstract: In an electric oil pump, a motor includes a main body including a coil, bus bars electrically connected to lead wires of the coil, and a shaft including a portion on one side in an axial direction protruding from an end of the main body on the one side in the axial direction and connected to a pump, a control board includes a power supply input portion and a power supply output portion and is disposed in a posture in which any one of a first surface and a second surface of the control board lies in the axial direction, the power supply input portion is at an end portion of the control board on the other side in the axial direction, and bus bar terminals are disposed on one side of the main body in the axial direction.Type: ApplicationFiled: February 14, 2020Publication date: October 1, 2020Inventors: Yoshiyuki KOBAYASHI, Shigehiro KATAOKA
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Publication number: 20200309119Abstract: A board surface of a control board is disposed on an outward side of a motor in a radial direction in a posture along an axial direction. A rotation angle sensor is disposed on a rear side of a control board in the axial direction. A power supply input portion on the control board is disposed in an end portion on the rear side in the axial direction. A main body of a motor includes the control board and a wiring assembly electrically connecting a connector and the rotation angle sensor to each other. The wiring assembly includes a power supply input wiring, a sensor wiring, and a wiring holder holding the power supply input wiring and the sensor wiring.Type: ApplicationFiled: February 14, 2020Publication date: October 1, 2020Inventors: Shigehiro KATAOKA, Yoshiyuki KOBAYASHI
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Publication number: 20200232457Abstract: A pump device includes a motor including a shaft along a central axis, a pump on one side of the motor in an axial direction and driven by the motor via the shaft to discharge oil, and an inverter circuit to drive the pump. The motor includes a housing to accommodate a rotor and a stator. The pump includes a pump rotor attached to the shaft, a pump body to accommodate the pump rotor, and a pump cover to cover an opening on one side of the pump body in the axial direction. The pump cover includes a cover extension extending from an outer edge portion of the pump cover in a radial direction and extending to the outside of a sidewall of the housing. The pump cover is provided to come into thermal contact with the inverter circuit.Type: ApplicationFiled: February 23, 2018Publication date: July 23, 2020Applicant: Nidec Tosok CorporationInventors: Shigehiro KATAOKA, Yoshiyuki KOBAYASHI
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Publication number: 20200232477Abstract: An electric oil pump includes a motor including a shaft, a pump driven with the shaft therebetween, and an inverter fixed to a rear side of the motor. The motor includes a motor housing. The inverter includes an inverter housing including a circuit board accommodation portion. The inverter housing includes bus bars that connect coil ends inside the circuit board accommodation portion and extending from the motor and a circuit board to each other. The motor housing includes a bottomed cylindrical shape including a bottom portion on the inverter side. The inverter housing includes a fixed portion that is fixed to the bottom portion. The fixed portion is fixed to the bottom portion using fixing members, and the fixing members are disposed within a region surrounded by bus bars.Type: ApplicationFiled: August 16, 2018Publication date: July 23, 2020Inventors: Shigehiro KATAOKA, Yoshiyuki KOBAYASHI
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Publication number: 20200235630Abstract: A circuit board assembly includes a circuit board, an inverter housing including a circuit board accommodating portion, and an external terminal connected to the circuit board. The circuit board includes a connection hole, and the inverter housing includes an external terminal receiving portion projecting on a bottom surface of the circuit board accommodating portion. The external terminal receiving portion includes an external terminal fitting hole including an insertion side opening that opens on a bottom of the inverter housing, and a projection side opening that opens on a tip of the external terminal receiving portion. The projection side opening faces the connection hole, and the external terminal is disposed in the external terminal fitting hole so as to project from the projection side opening and be inserted into the connection hole.Type: ApplicationFiled: August 16, 2018Publication date: July 23, 2020Inventors: Yoshiyuki KOBAYASHI, Shigehiro KATAOKA
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Publication number: 20200217309Abstract: A filter module includes an attachment attached to an attachment catch. The attachment of the filter module on the attachment catch of the electric oil pump main body to the attachment catch is fixed in a posture where an outlet port of the filter module is caused to communicate with the suction port of the electric oil pump main body.Type: ApplicationFiled: December 12, 2019Publication date: July 9, 2020Inventors: Shigehiro KATAOKA, Yoshiyuki KOBAYASHI
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Publication number: 20200208631Abstract: An electric oil pump includes a motor including a shaft, a pump driven via the shaft, and an inverter on a rear side of the motor and fixed to the motor. The motor includes a rotor, a stator, and a motor housing. The pump includes a pump rotor and a pump housing. The motor housing includes a bottomed tubular shape including a bottom portion on the inverter side, and the inverter portion includes an inverter housing that accommodates a circuit board. The inverter includes a metal base plate on a front side of the inverter housing and extends in the radial direction with respect to the central axis. The base plate is fixed to the bottom portion of the motor housing.Type: ApplicationFiled: August 16, 2018Publication date: July 2, 2020Inventors: Shigehiro KATAOKA, Yoshiyuki KOBAYASHI
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Publication number: 20200182245Abstract: An electric oil pump includes a motor including a shaft, a pump on a front side of the motor and driven by the shaft, and an inverter fixed to a rear side of the motor. The motor includes a rotor, a stator, and a motor housing. The pump includes a pump housing. The inverter includes an inverter housing in which a circuit board is housed, and an inverter housing connector that fixes the inverter housing to the motor housing. The pump includes a pump fixing connector, and the circuit board includes an electronic component mounted on the circuit board adjacent to the motor part, and overlaps the inverter housing fixing connector in a direction perpendicular or substantially perpendicular to an axial direction.Type: ApplicationFiled: August 16, 2018Publication date: June 11, 2020Inventors: Shigehiro KATAOKA, Yoshiyuki KOBAYASHI
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Publication number: 20200116156Abstract: A pressure sensor device includes a pressure sensor, a sensor case, first and second terminals protruding from the pressure sensor in a first direction, a third terminal protruding from the pressure sensor in a second direction, a fourth terminal protruding from the pressure sensor in the second direction, a first capacitor on one side of the pressure sensor, a second capacitor on the other side of the pressure sensor, a first lead line extending out of the sensor case from the first terminal, a second lead line extending out of the sensor case from the second terminal, and a third lead line extending out of the sensor case from a side edge between the first terminal and the second terminal.Type: ApplicationFiled: July 24, 2017Publication date: April 16, 2020Inventors: Yoshiyuki KOBAYASHI, Shigehiro KATAOKA
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Publication number: 20200032794Abstract: An oil pump device includes a motor, a pump, a pump cover, and a solenoid. The pump cover includes a discharge port, an intake opening through which oil is suctioned, a first discharge opening and a second discharge opening through which oil is discharged, a first oil passage that is a flow path between the first discharge opening and the discharge port, and a second oil passage that is a flow path between the second discharge opening and the discharge port. A solenoid valve of a solenoid is located on the second oil passage.Type: ApplicationFiled: March 12, 2018Publication date: January 30, 2020Inventors: Takamitsu ETO, Yoshiyuki KOBAYASHI, Koji HIGUCHI, Shigehiro KATAOKA
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Publication number: 20200003209Abstract: An oil pump includes a motor including a shaft disposed along a central axis extending in an axial direction, a rotor rotatable around the shaft, a stator disposed to face the rotor, a housing that accommodates the rotor and the stator, a pump including a pump rotor rotatable together with the shaft to suction and discharge oil, and a pump housing including an accommodation portion that accommodates the pump rotor. The pump housing includes an intake port through which the oil is suctioned, a discharge port through which the oil is discharged, and a pressure sensor disposed between the discharge port and the accommodation portion.Type: ApplicationFiled: March 12, 2018Publication date: January 2, 2020Inventors: Takamitsu ETO, Yoshiyuki KOBAYASHI, Koji HIGUCHI, Shigehiro KATAOKA
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Publication number: 20200003210Abstract: An oil pump includes a motor including a shaft disposed along a center axis, a rotor rotating around the shaft, a stator disposed to face the rotor, a housing accommodating the rotor and the stator, and a pump. The pump includes a pump rotor rotating together with the shaft, and a pump housing including an accommodating portion that accommodates the pump rotor. The pump housing includes a suction port that suctions in oil, a discharge port that discharges oil, and a pressure sensor that detects hydraulic pressure of oil in a partial flow passage allowing communication between the discharge port and the accommodating portion. The pressure sensor is disposed outside the housing of the motor, and the housing includes a wall that blocks electromagnetic waves.Type: ApplicationFiled: March 12, 2018Publication date: January 2, 2020Inventors: Yoshiyuki KOBAYASHI, Koji HIGUCHI, Shigehiro KATAOKA
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Publication number: 20190376511Abstract: An electric oil pump includes a motor, a pump, and a motor driver. The pump includes a pump rotor attached to the shaft, a pump body, and a pump cover. A motor driver includes an inverter circuit that controls driving of a motor and an inverter cover. The inverter circuit is in thermal contact with the pump cover.Type: ApplicationFiled: February 23, 2018Publication date: December 12, 2019Inventors: Yoshiyuki KOBAYASHI, Takamitsu ETO, Shigehiro KATAOKA, Hirotaka KANAMONO
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Publication number: 20190301596Abstract: An electric oil pump includes a motor part having a shaft, a pump part located on a front side of the motor part and driven via the shaft, and a control part controlling the motor part. The motor part includes a rotor, a stator, and a motor housing accommodating the rotor and the stator. The pump part includes a pump rotor mounted on the shaft protruding from the motor part, and a pump housing accommodating the pump rotor. The control part includes a substrate having a surface on which a plurality of electronic components are mounted. The surface of the substrate is disposed to face the cylindrical portion of the motor housing and extends in the axial direction. The substrate has an axial length shorter than an axial length of an assembly of the motor part and the pump part and is disposed within an axial range of the assembly.Type: ApplicationFiled: March 19, 2019Publication date: October 3, 2019Applicant: NIDEC TOSOK CORPORATIONInventors: Yoshiyuki KOBAYASHI, Shigehiro KATAOKA, Yutaka OMORI
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Publication number: 20190301468Abstract: An electric oil pump includes a motor part having a shaft, a pump part located on a front side of the motor part and driven via the shaft, and a control part which controls the motor part. The motor part includes a rotor, a stator, and a motor housing having a cylindrical portion which accommodates the rotor and the stator. The pump part includes a pump rotor, and a pump housing which accommodates the pump rotor. The control part includes a substrate having a surface on which a plurality of electronic components are mounted. The surface of the substrate is disposed to face the cylindrical portion and extends in the axial direction. A coil, which is provided on the stator, and the substrate are electrically connected via a connecting bus bar assembly. The connecting bus bar assembly is disposed between the cylindrical portion and the substrate.Type: ApplicationFiled: March 19, 2019Publication date: October 3, 2019Applicant: NIDEC TOSOK CORPORATIONInventors: Shigehiro KATAOKA, Yoshiyuki KOBAYASHI, Yutaka OMORI