公开(公告)号：US10337892B2

公开(公告)日：2019-07-02

申请号：US15501084

申请日：2015-08-05

Applicant: NSK LTD.

Inventor： Yasuhiro Kawai ,  Toshiaki Oguchi ,  Hideki Furukawa ,  Tomoyuki Yanagisawa ,  Minoru Kubokawa

IPC: G01D5/34 ,  G01D5/347 ,  G01D5/244

Abstract: A sensor including: a generating unit; a detecting unit that detects the object to be detected generated by the generating unit; and a substrate at which the generating unit and the detecting unit are provided. The substrate is a flexible substrate that includes a first portion provided with the generating unit and a second portion provided with the detecting unit, the first portion and the second portion being integrated, and that takes a curved shape or a bent shape in which a surface of the first portion at which the generating unit is provided and a surface of the second portion at which the detecting unit is provided face each other. A plate support member is attached to a back-side surface of at least one of the surface of the first portion and the surface of the second portion.

公开(公告)号：US10670430B2

公开(公告)日：2020-06-02

申请号：US16078901

申请日：2016-02-25

Applicant: NSK LTD.

Inventor： Tomoyuki Yanagisawa ,  Minoru Kubokawa ,  Toshiaki Oguchi ,  Hideki Furukawa ,  Yasuhiro Kawai

IPC: G01D5/26 ,  G01D11/02 ,  G01D5/347 ,  G01D5/34

Abstract: A sensor configured to detect displacement of a rotation angle of a shaft due to a rotation or a turn of the shaft, the sensor includes: a bearing rotatably supporting the shaft; and a housing including a bearing hole to which the bearing is fixed. The shaft and an inner circumferential surface of the bearing are fixed to each other by an adhesive agent, and an outer circumferential surface of the bearing and an inner circumferential surface of the bearing hole of the housing are fixed to each other by an adhesive agent.

公开(公告)号：US10378932B2

公开(公告)日：2019-08-13

申请号：US15500795

申请日：2015-08-05

Applicant: NSK LTD.

Inventor： Yasuhiro Kawai ,  Toshiaki Oguchi ,  Hideki Furukawa ,  Tomoyuki Yanagisawa ,  Minoru Kubokawa

IPC: G01D11/24 ,  G01D5/347

Abstract: A sensor including a generating unit; a detecting unit; a substrate; a member that exerts influence on an object to be detected; and a housing that includes a first housing that operably supports the member and a second housing to which a part of the substrate is fixed. The substrate includes a first portion provided with the generating unit and a second portion provided with the detecting unit that are integrated, and has a curved shape or a bent shape in which a surface of the first portion at which the generating unit is provided and a surface of the second portion at which the detecting unit is provided face each other. One of the first portion and the second portion is fixed to the second housing. A surface of the other of the first portion and the second portion adheres to the first housing.

公开(公告)号：US10139252B2

公开(公告)日：2018-11-27

申请号：US15500776

申请日：2015-08-05

Applicant: NSK LTD.

Inventor： Yasuhiro Kawai ,  Toshiaki Oguchi ,  Hideki Furukawa ,  Tomoyuki Yanagisawa ,  Minoru Kubokawa

IPC: G01D5/347

Abstract: An optical sensor including a light-emitting element, four light-receiving elements facing the light-emitting element, and a substrate at which the light-emitting element and the light-receiving elements are provided. The substrate includes a first portion at which the light-emitting element is provided and a second portion at which the light-receiving elements are provided, the first portion and the second portion being integrated. Respective distances from the four light-receiving elements to one point on a predetermined plane are equal, four line segments that connect the one point and centers of respective light-receiving regions of the four light-receiving elements form right angles with each other, and a normal line of the predetermined plane that passes through the one point passes through an emission point of the light of the light-emitting element or a center of an emission surface of the light of the light-emitting element.

公开(公告)号：US11231298B2

公开(公告)日：2022-01-25

申请号：US16079621

申请日：2016-02-25

Applicant: NSK LTD.

Inventor： Tomoyuki Yanagisawa ,  Minoru Kubokawa ,  Toshiaki Oguchi ,  Hideki Furukawa ,  Yasuhiro Kawai

IPC: G01D5/347

Abstract: A sensor includes a generator configured to generate a predetermined detection target, a detector configured to detect the detection target generated by the generator, and a substrate provided with the generator and the detector. The substrate includes a first portion provided with the generator, a second portion provided with the detector, a bent portion that is bent between the first portion and the second portion such that the generator and the detector face each other, and a ground pattern provided in a portion including the first portion, the second portion, and the bent portion. In the ground pattern, a ground pattern of the bent portion is narrower than a ground pattern of the first portion and a ground pattern of the second portion.

公开(公告)号：US10458817B2

公开(公告)日：2019-10-29

申请号：US15743090

申请日：2016-02-25

Applicant: NSK LTD.

Inventor： Tomoyuki Yanagisawa ,  Minoru Kubokawa ,  Toshiaki Oguchi ,  Hideki Furukawa ,  Yasuhiro Kawai

IPC: G01D5/34 ,  G01D5/347 ,  G01D5/14 ,  G01D5/245 ,  G01D5/12

Abstract: A sensor manufacturing method is a method for manufacturing a sensor including a generator that generates a predetermined detection target, a detector that detects the detection target generated by the generator, and a motion body that performs motion in the area in between the generator and the detector. In the method, the generator and the detector are positioned opposite to each other by either curving or bending a substrate including a first portion having the generator installed thereon and a second portion having the detector installed thereon that are formed in an integrated manner, and the substrate and the motion body are made to perform relative movement in such a way that the motion body enters the area in between the generator and the detector.

公开(公告)号：US10379111B2

公开(公告)日：2019-08-13

申请号：US14783671

申请日：2014-03-31

Applicant: NSK LTD.

Inventor： Keisuke Yokoyama ,  Hideki Furukawa ,  Nobuko Okutani ,  Kunihiko Sasao ,  Toshiaki Oguchi

IPC: G01N33/53 ,  G01N21/75 ,  G01N21/552 ,  G01N21/77 ,  B82Y5/00

Abstract: A target substance capturing device includes a reflection surface on which a plurality of non-flat portions is arrayed, the reflection surface capturing a target substance, and reflecting irradiated light. The plurality of non-flat portions are arranged in an array, the array includes a plurality of unit arrays in which the plurality of non-flat portions are arranged such that each one center of the non-flat portions superposes a position of a vertex in an M-time symmetrical figure, and the plurality of unit arrays is arranged such that each one center of gravity of the M-time symmetrical figure superposes a position of an intersection of an N-time symmetrical lattice pattern, where M is an integer of two or more, and N is an integer of two or more and different from M.

公开(公告)号：US10156459B2

公开(公告)日：2018-12-18

申请号：US15034076

申请日：2014-10-31

Applicant: NSK LTD.

Inventor： Toshiaki Oguchi

IPC: G01D5/34 ,  G01D5/347

Abstract: An optical encoder unit includes: a light source having a predetermined light distribution; an optical scale having a polarizer whose polarization direction on a plane is along a predetermined direction, and whose polarization direction is changed according to rotation; and an optical sensor unit including a first photoreceiver, a second photoreceiver, a third photoreceiver, and a fourth photoreceiver for receiving incident light that is light source light from the light source made incident on the respective photoreceivers by passing through or being reflected by the optical scale. An emitting surface of the light source and the optical sensor unit are arranged at positions so as to receive a light intensity that is predetermined times greater or more than that corresponding to dark current of the optical sensor.

公开(公告)号：US09481394B2

公开(公告)日：2016-11-01

申请号：US14894103

申请日：2015-08-07

Applicant: NSK Ltd.

Inventor： Kei Kondo ,  Toshiaki Oguchi ,  Yusuke Imai ,  Tomoki Watanabe

IPC: G01D5/244 ,  B62D15/02 ,  B62D5/04 ,  G01D5/34 ,  G01D5/20

CPC classification number: B62D15/021 ,  B62D5/04 ,  G01D5/20 ,  G01D5/2013 ,  G01D5/24476 ,  G01D5/345 ,  G01L3/08 ,  G01L5/221 ,  G01L25/003

Abstract: There are provided an angle detection apparatus configured to correct an error included in angle information output from a multipolar angle detector, a motor having the angle detection apparatus, a torque sensor, an electric power steering apparatus, and a vehicle. A multiplication circuit (12) generates digital electrical angle information (θed) from analog angle information output from a multipolar optical encoder (11), a first differentiator 30 differentiates the electrical angle information (θed) to operate an electrical angular velocity (ωed), a first discontinuity correction circuit (31) carries out processing of correcting a discontinuity of an angular velocity in a temporal change for the electrical angular velocity (ωed), and a digital filter (32) carries out correction processing of reducing a high-frequency noise component for an electrical angular velocity (ωedc) corrected by the first discontinuity correction circuit (31).

Abstract translation: 提供了一种角度检测装置，其被配置为校正由多极角度检测器输出的角度信息中包含的误差，具有角度检测装置的电动机，扭矩传感器，电动助力转向装置和车辆。 乘法电路（12）从多极光学编码器（11）输出的模拟角度信息生成数字电角度信息（θed），将电角度信息（θed）与电角速度（ωed）进行微分的第一微分器30， 第一不连续性校正电路（31）执行在电角速度（ωed）的时间变化中校正角速度的不连续性的处理，数字滤波器（32）执行降低高频噪声的校正处理 由第一不连续校正电路（31）校正的电角速度（ωedc）的分量。

公开(公告)号：US20140311258A1

公开(公告)日：2014-10-23

申请号：US14355106

申请日：2012-10-31

Applicant: NSK LTD.

Inventor： Toshiaki Oguchi ,  Kunihiko Sasao ,  Sumio Sugita

IPC: G01D5/34 ,  G01L3/08

CPC classification number: G01L3/12 ,  B62D5/0481 ,  G01D5/345 ,  G01D5/34707 ,  G01D5/34715 ,  G01D5/3473 ,  G01L3/08

Abstract: An optical sensor, an optical encoder, a torque detection apparatus, and an electric power steering apparatus less affected by fluctuations in the amount of detected light and with an improved resolution are provided. The optical sensor includes a first polarizing layer that splits incident light to light with a first polarization direction, a first photoreceiver that receives first polarized light split by the first polarizing layer, a second polarizing layer that splits the incident light to light with a second polarization direction, and a second photoreceiver that receives second polarized light split by the second polarizing layer. The first photoreceiver and the second photoreceiver are positioned alternatingly and spaced uniformly with each other.

Abstract translation: 提供了一种光学传感器，光学编码器，扭矩检测装置和较少受到检测光量的波动影响并具有改善的分辨率的电动转向装置。 光学传感器包括：第一偏振层，其将入射光与第一偏振方向分开;第一光接收器，接收由第一偏振层分离的第一偏振光;第二偏振层，其将入射光与第二偏振光分开; 以及第二光接收器，其接收由第二偏振层分裂的第二偏振光。 第一光接收器和第二光接收器彼此交替地和间隔开地定位。