公开(公告)号：US11205977B2

公开(公告)日：2021-12-21

申请号：US15759482

申请日：2017-07-26

Applicant: TRI-FORCE MANAGEMENT CORPORATION

Inventor： Kazuhiro Okada ,  Miho Okada ,  Satoshi Era

IPC: H02N2/18

Abstract: A power generating element according to the present invention includes: a support frame formed in a frame shape in plan view; a vibrating body provided inside the support frame; a first bridge portion and a second bridge portion that supports the vibrating body on the support frame; and a charge generating element to generate a charge at the time of displacement of the vibrating body. The support frame includes a first frame portion arranged on a first side with respect to the vibrating body and includes a second frame portion arranged on a second side opposite to the first side with respect to the vibrating body. The first bridge portion couples the vibrating body with the first frame portion. The second bridge portion couples the vibrating body with the second frame portion.

公开(公告)号：US10571346B2

公开(公告)日：2020-02-25

申请号：US15764762

申请日：2018-01-09

Applicant: TRI-FORCE MANAGEMENT CORPORATION

Inventor： Kazuhiro Okada ,  Miho Okada ,  Satoshi Era

IPC: G01L1/14 ,  G01L3/10 ,  G01L5/165 ,  G01L5/12

Abstract: A force sensor includes: a deformable body having a force receiving portion and a fixed portion; a displacement body configured to generate a displacement by elastic deformation generated in the deformable body; and a detection circuit configured to detect an applied force on the basis of the displacement generated in the displacement body, in which the deformable body includes: a tilting portion arranged between the force receiving portion and the fixed portion; a first deformable portion that connects the force receiving portion and the tilting portion; and a second deformable portion that connects the fixed portion and the tilting portion, the displacement body includes a displacement portion connected to the tilting portion and separated from the fixed portion, the detection circuit includes a first displacement sensor and a second displacement sensor arranged in the displacement portion, and the detection circuit outputs a first electric signal indicating an applied force on the basis of a detection value of the first displacement sensor, and outputs a second electric signal indicating an applied force on the basis of a detection value of the second displacement sensor, and then determines whether force detection is performed normally on the basis of the first electric signal and the second electric signal.

公开(公告)号：US10209151B2

公开(公告)日：2019-02-19

申请号：US15745979

申请日：2016-07-21

Applicant: TRI-FORCE MANAGEMENT CORPORATION ,  DAI-ICHI SEIKO CO., LTD.

Inventor： Kazuhiro Okada ,  Satoshi Era ,  Nobuhiro Nagamoto ,  Takahito Kamiudo ,  Kazuto Akiba

IPC: G01L3/10 ,  G01L3/14 ,  G01L1/22 ,  G01L1/14 ,  G01L5/16

Abstract: An inner support member, a detection deformable body, and a ring-shaped outer support member are disposed sequentially from the inside to the outside around a Z axis as a central axis. Inner surfaces in the vicinity of inner support points of the detection deformable body connect to outer surfaces of the inner support member via inner connecting members, and outer surfaces in the vicinity of outer support points of the detection deformable body connect to inner surfaces of the outer support member via outer connecting members. When a torque acts in the clockwise direction on the outer support member (130) while the inner support member is fixed, detection parts are displaced outwardly, and detection parts are displaced inwardly. These displacements are detected electrically as changes in capacitance values of four capacitor elements including opposing electrodes.