Patents Assigned to Nabtesco Corporation
  • Patent number: 11859763
    Abstract: A container includes a pouch formed of a film material and in which a lubricant composition with a worked penetration of 300 to 450 is filled and sealed, and a spout fixed to the pouch.
    Type: Grant
    Filed: September 22, 2020
    Date of Patent: January 2, 2024
    Assignee: Nabtesco Corporation
    Inventors: Koji Nakamura, Hiroyuki Miyoshi
  • Patent number: 11852623
    Abstract: A sensor relating to one aspect of the present invention includes a first electrode, a second electrode arranged relative to the first electrode with a gap being provided therebetween, a sensor body having the first and second electrodes arranged therein, and a catching portion arranged in the gap and having an outer peripheral surface made of an insulating material. Electric connection is established along the outer peripheral surface via conductive particles gathering to the catching portion.
    Type: Grant
    Filed: November 20, 2020
    Date of Patent: December 26, 2023
    Assignee: NABTESCO CORPORATION
    Inventors: Kazuhiko Sakurai, Takahito Azuma, Atsushi Koike
  • Patent number: 11852504
    Abstract: A sensor device is attached to, for example, a mechanical component. The sensor device includes a sensor unit, an output unit, and an energy harvesting unit. The sensor unit measures a condition related to the mechanical component. The output unit outputs information that is based on the measurement result from the sensor unit to the outside. The energy harvesting unit converts energy that exists in an external environment into electric power and supplies an electric power for operating at least one of the sensor unit and the output unit.
    Type: Grant
    Filed: April 4, 2022
    Date of Patent: December 26, 2023
    Assignee: NABTESCO CORPORATION
    Inventors: Kiyoshi Andoh, Takashi Wada, Hiroyuki Inoue
  • Patent number: 11852217
    Abstract: A speed reducer according to the invention includes: a main speed reduction unit decelerating rotation from an input side and transmitting decelerated rotation to an output side; a fixed block coupled to the main speed reduction unit and rotatably supporting an input gear coupled to a rotary drive source; an output gear transmitting rotation of the input gear to an input side of the main speed reduction unit; and an intermediate gear meshing with the input gear and the output gear and rotatably supported by the fixed block.
    Type: Grant
    Filed: March 25, 2020
    Date of Patent: December 26, 2023
    Assignee: NABTESCO CORPORATION
    Inventors: Koji Nakamura, Yuta Nagaya
  • Patent number: 11852220
    Abstract: An aspect of the present invention provides a speed reducer including a supporting block, an input gear rotatably supported on the supporting block, an intermediate gear meshing with the input gear, an output gear meshing with the intermediate gear, and a gear position changing mechanism configured to change a position of the intermediate gear relative to the input and output gears.
    Type: Grant
    Filed: March 25, 2020
    Date of Patent: December 26, 2023
    Assignee: Nabtesco Corporation
    Inventors: Koji Nakamura, Yuta Nagaya, Mitsuru Shimamoto, Takayuki Okimura
  • Patent number: 11846341
    Abstract: A drive unit includes an actuator from which an output rod protrudes at one end of a cylinder and being coupled to a flap of an aircraft, an attachment disposed on the other side of the cylinder, a reaction link coupled to the flap at one end and to the attachment at the other end, and a connection-disconnection section allowing the cylinder and the attachment to be coupled to and separated from each other.
    Type: Grant
    Filed: November 10, 2020
    Date of Patent: December 19, 2023
    Assignee: NABTESCO CORPORATION
    Inventors: Koji Ito, Toshiaki Tanaka
  • Patent number: 11841073
    Abstract: A shaft retention mechanism of the present invention includes: a casing forming a housing space containing a lubricant; an input shaft penetrating a through-hole formed in the casing, the input shaft extending through the casing; a sealing ring encircling the input shaft in the through-hole, the sealing ring sealing between the input shaft and the casing; and a bearing disposed on an opposite side of the sealing ring to the housing space, the bearing rotatably supporting the input shaft in the through-hole.
    Type: Grant
    Filed: April 22, 2021
    Date of Patent: December 12, 2023
    Assignee: NABTESCO CORPORATION
    Inventor: Masato Kihira
  • Patent number: 11821507
    Abstract: The present disclosure relates to a manufacturing method of a speed reducer. The speed reducer includes an outer tube, a shaft portion, an input shaft, a first bearing, a speed reducing portion, and an attachment member. The shaft portion has a first receiving surface and a shaft end surface. The outer tube has a second receiving surface. The first bearing has a first inner ring and a first outer ring. The first receiving surface contacts the first inner ring. The second receiving surface contacts the first outer ring. A first machining accuracy is obtained based on a first parallelism between the first receiving surface and the shaft end surface. A second machining accuracy is obtained based on a second parallelism between the second receiving surface and the flange mounting surface. The manufacturing method includes performing machining such that the first machining accuracy becomes higher than the second machining accuracy.
    Type: Grant
    Filed: March 20, 2023
    Date of Patent: November 21, 2023
    Assignee: Nabtesco Corporation
    Inventors: Koji Nakamura, Shinji Inoue
  • Patent number: 11808337
    Abstract: One aspect of the present invention provides a method for manufacturing a strain wave gear device. The method includes steps of measuring a between pin diameter of an internal gear, measuring an over pin diameter of an external gear, where the external gear is to be placed radially inside the internal gear, configured to mesh with the internal gear, and flexible, measuring a dimension of a bearing, where the bearing is to be placed radially inside the external gear, and flexible, and machining an elliptical cam, where the elliptical cam is to be placed radially inside the bearing, and configured to flex the external gear in a non-circular manner. The elliptical cam is machined based on the measured dimensions of the internal gear, external gear and bearing such that the internal and external gears mesh with each other at a constant position.
    Type: Grant
    Filed: March 1, 2022
    Date of Patent: November 7, 2023
    Assignee: NABTESCO CORPORATION
    Inventors: Masashi Imai, Yuichi Asakawa
  • Patent number: 11807314
    Abstract: A steering device includes: a steering unit steered by a driver; a drive unit rotating for imparting an auxiliary force to the steering unit; a first control unit calculating a load torque that corresponds to a reaction force from a road surface and is estimated based on a value measured in the steering unit and the drive unit, the first control unit also calculating a target steering torque for the steering unit based on the calculated load torque; and a second control unit calculating the auxiliary force of the drive unit to achieve the target steering torque calculated by the first control unit.
    Type: Grant
    Filed: April 21, 2022
    Date of Patent: November 7, 2023
    Assignee: NABTESCO CORPORATION
    Inventors: Stephan Klotzbach, Tobias Niermann
  • Patent number: 11781637
    Abstract: A speed reducer with a falling-off prevention feature according to an aspect of the disclosure includes: a speed reducer for decelerating rotation from a drive source that generates a rotational force and outputting the decelerated rotation, the speed reducer being mounted to a robot; and a coupling member for coupling the speed reducer to the robot. The coupling member maintains coupling between the speed reducer and the robot irrespective of displacement of the speed reducer relative to the robot.
    Type: Grant
    Filed: May 12, 2022
    Date of Patent: October 10, 2023
    Assignee: NABTESCO CORPORATION
    Inventors: Kazuyoshi Makisumi, Yoshiaki Makizoe
  • Patent number: 11774387
    Abstract: A wiring structure includes a wiring such as a flexible printed wiring board, a permanent magnet, and a relay piece. The wiring has a conductive portion. The permanent magnet has electrical conductivity. The relay piece is formed of a conductive metal and connected to the conductive portion of the wiring. The relay piece has the permanent magnet fixed thereto by magnetic attraction.
    Type: Grant
    Filed: March 7, 2022
    Date of Patent: October 3, 2023
    Assignee: NABTESCO CORPORATION
    Inventors: Masaki Harada, Atsushi Koike, Kazuhiko Sakurai
  • Patent number: 11773797
    Abstract: Provided is a status monitoring device for a speed reducer, including: at least one signal transmission unit for monitoring a status of at least one crankshaft of a speed reducer and transmitting a status signal; and a determination unit for determining a status of the speed reducer based on the status signal from the at least one signal transmission unit.
    Type: Grant
    Filed: March 10, 2021
    Date of Patent: October 3, 2023
    Assignee: NABTESCO CORPORATION
    Inventors: Masakazu Kurita, Hiroki Mori, Koji Nakamura, Kazuhiko Sakurai
  • Patent number: 11768192
    Abstract: A conductive particle detecting device includes a plurality of electrodes, a permanent magnet, and a detecting circuit. The plurality of electrodes are arranged at intervals in a lubricant. The permanent magnet accumulates conductive particles in the lubricant between adjacent electrodes by a magnetic force. The detecting circuit detects target conductive particles based on electrical resistance between the adjacent electrodes. An attractive force of the permanent magnet acting on the conductive particles between the adjacent electrodes is set such that the lubricant remains as a non-conductive layer around fine-sized conductive particles having a smaller particle size than the target conductive particles.
    Type: Grant
    Filed: March 7, 2022
    Date of Patent: September 26, 2023
    Assignee: NABTESCO CORPORATION
    Inventors: Masakazu Kurita, Hiroki Mori, Koji Nakamura, Kazuhiko Sakurai, Masaki Harada
  • Patent number: 11754166
    Abstract: A power transmission device according to one aspect of the disclosure includes a first gear, a base member, a second gear, a support block, a position adjusting unit, and a fixing unit. The base member rotatably supports the first gear. The second gear engages with the first gear so as to be able to transmit power. The support block rotatably supports the second gear. The position adjusting unit adjusts relative positions of the support block and the base member in a direction in which an engagement depth between the second gear and the first gear varies. The fixing unit fixes the relative positions of the support block and the base member.
    Type: Grant
    Filed: April 26, 2022
    Date of Patent: September 12, 2023
    Assignee: Nabtesco Corporation
    Inventors: Tetsuya Kito, Masato Uchihara
  • Patent number: 11732778
    Abstract: A speed reducer according to one embodiment of the disclosure includes: a casing; a carrier disposed rotatably relative to the casing; a speed reduction mechanism that is disposed in the casing and reduces rotation inputted from a motor and outputs reduced rotation; and a bolt protruding from the carrier toward the outside of the casing. The bolt has a male threaded portion that is configured to engage with a female threaded portion provided in a second arm.
    Type: Grant
    Filed: September 9, 2021
    Date of Patent: August 22, 2023
    Assignee: NABTESCO CORPORATION
    Inventor: Kazuyoshi Makisumi
  • Patent number: 11732689
    Abstract: A wind turbine drive control device according to one aspect of the present invention is a wind turbine drive control device for controlling a plurality of drive devices for moving two structures included in a wind power generation device relative to each other, the wind turbine drive control device including: an obtaining unit for obtaining a plurality of information items related to loads occurring between each of the plurality of drive devices and one of the two structures that receives forces generated by the plurality of drive devices; and a control unit for controlling the plurality of drive devices in such a manner that, in a state where each of the plurality of drive devices is controlled to generate a predetermined braking force, the braking force of at least one first drive device among the plurality of drive devices is increased, based on the plurality of information items.
    Type: Grant
    Filed: November 20, 2020
    Date of Patent: August 22, 2023
    Assignee: Nabtesco Corporation
    Inventors: Haruo Kodama, Hirofumi Komori
  • Patent number: 11668339
    Abstract: A joining structure according to one embodiment of the present invention includes a first member and a second member, the first member having a hole extending along an axis direction, the second member including a shaft member, the shaft member being formed of a fiber-containing composite material and having a shape to fit in the hole, the second member being joined to the first member via the shaft member so that movement thereof in the axis direction is restricted.
    Type: Grant
    Filed: August 23, 2019
    Date of Patent: June 6, 2023
    Assignee: Nabtesco Corporation
    Inventor: Tsutomu Yasui
  • Patent number: 11672097
    Abstract: An electronic device for an aircraft includes: a casing; a first boss projecting from a bottom wall of the casing toward an opening of the casing; a second boss projecting from the bottom wall of the casing toward the opening of the casing by a larger amount than the first boss; a first circuit board fixed to the first boss; and a second circuit board fixed to the second boss. The first circuit board includes cutouts penetrated by the second boss when the first circuit board is fixed to the first boss.
    Type: Grant
    Filed: November 2, 2020
    Date of Patent: June 6, 2023
    Assignee: NABTESCO CORPORATION
    Inventor: Hisanobu Kimura
  • Patent number: 11661104
    Abstract: A steering device according to one aspect of the disclosure includes: a speed reducer configured to decelerate a rotational power input from one surface side while increasing a torque and output rotation from an output section disposed on the other surface side; a motor provided on the one surface side and configured to input the rotational power to the speed reducer; and a control device for controlling the motor. The motor includes a rotor for generating the rotational power. The rotor includes a rotor output shaft disposed coaxially with an output axis of the output section. The motor inputs the rotational power from one end side of the rotor output shaft to the speed reducer. The control device is disposed on the other end side of the rotor output shaft coaxially with the rotor output shaft and includes a sensing unit for sensing rotation of the rotor.
    Type: Grant
    Filed: April 18, 2022
    Date of Patent: May 30, 2023
    Assignee: NABTESCO CORPORATION
    Inventors: Satoshi Tanaka, Stefan Kubina