公开(公告)号：US10331217B2

公开(公告)日：2019-06-25

申请号：US15920378

申请日：2018-03-13

Applicant: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY ,  CENTER OF HUMAN-CENTERED INTERACTION FOR COEXISTENCE

Inventor： Youngsu Cha ,  Kahye Song ,  Jung Min Park ,  Bum-Jae You

IPC: B81B3/00 ,  G06F3/01

Abstract: Disclosed is an actuator including a support member, an actuating unit rotatably installed in the support member and having a first electrode installed on one side and a stimulation providing unit installed on the other side to provide stimulation by rotation, and an attraction force providing unit having a second electrode to provide an attraction force to the first electrode, wherein when an electrostatic attraction force is provided to the first electrode through the second electrode, the actuating unit pivots to enable the stimulation providing unit to apply stimulation to a sensing unit.

公开(公告)号：US11609211B2

公开(公告)日：2023-03-21

申请号：US17096092

申请日：2020-11-12

Applicant: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY

Inventor： Youngsu Cha ,  Jae Hoon Chung ,  Yonghwan Oh

IPC: G01N29/24 ,  G01N29/11 ,  B25J13/08

Abstract: The present disclosure provides an object recognition apparatus, which includes: an actuator unit configured to contact an object and generate vibrations and transmit them through objects based on the inherent characteristic of the object; and a sensor unit connected to the actuator unit to receive the vibration and generate a voltage signal.

公开(公告)号：US11036297B2

公开(公告)日：2021-06-15

申请号：US16502253

申请日：2019-07-03

Applicant: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY ,  CENTER OF HUMAN-CENTERED INTERACTION FOR COEXISTENCE

Inventor： Youngsu Cha ,  Kahye Song ,  Jung Min Park ,  Bum-Jae You

IPC: G06F3/01 ,  G08B6/00

Abstract: Provided is a tactile feedback device including a tactile transmission element having an enclosed space inside, the tactile transmission element including a compression part which is compressed toward the enclosed space by an electrostatic force generated by the application of voltage, and a tactile part which transmits tactile sensation to a user by expansion with movement of air by the compression.

公开(公告)号：US10132646B1

公开(公告)日：2018-11-20

申请号：US15848469

申请日：2017-12-20

Applicant: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY

Inventor： Youngsu Cha ,  Doik Kim ,  Junku Yuh

IPC: G01C22/00 ,  G01L1/16 ,  G01B7/16 ,  A43B3/00

Abstract: Disclosed is a measuring device for ambulation data including a bending sensor installed in a bottom of a shoe to sense a bending signal transmitted by bending of the bottom of the shoe and generate a voltage signal while a user is walking, a control unit electrically connected to the bending sensor to derive an ambulation parameter by processing the outputted voltage signal, and a terminal to output the ambulation parameter transmitted from the control unit, wherein the bending sensor is placed between a part that touches a forefoot and a part that touches a heel in the bottom of the shoe.

公开(公告)号：US11685044B2

公开(公告)日：2023-06-27

申请号：US17474384

申请日：2021-09-14

Applicant: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY

Inventor： Sohyun Kim ,  Youngsu Cha

IPC: B25J9/14 ,  F15B21/06 ,  F15B15/10 ,  B25J15/00

CPC classification number: B25J9/142 ,  B25J15/0023 ,  F15B15/10 ,  F15B21/065

Abstract: The present disclosure provides an actuator including a pouch which is sealed and formed with an asymmetric structure, a dielectric fluid which is filled in the pouch, and an electrode which is attached to one surface of the pouch and the other surface opposite the one surface, wherein the pouch includes a first part provided on one side and having a predetermined area, and a second part provided on the other side opposite the one side and having a smaller area than the first part, and when power is applied to the electrodes, the first part or the second part of the pouch is expandable by movement of the dielectric fluid due to the asymmetric structure, and an active plate having the same.

公开(公告)号：US11073434B2

公开(公告)日：2021-07-27

申请号：US16703114

申请日：2019-12-04

Applicant: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY

Inventor： Youngsu Cha ,  Ye Rim Lee

IPC: H01L41/29 ,  G01L1/16 ,  G01L5/00 ,  H01L41/047 ,  H01L41/45 ,  H01L41/193 ,  H01L41/113

Abstract: Provided are a method of manufacturing a shear and normal force sensor including fabricating raised and sunken polymers having a plurality of bent parts of bent shapes, forming an electrode pattern on one surface of a piezoelectric element, and embedding the piezoelectric element between the raised and sunken polymers, and a shear and normal force sensor including raised and sunken polymers having a plurality of bent parts of bent shapes, a piezoelectric element embedded between the raised and sunken polymers and having an electrode pattern on one surface, and a flexible printed circuit board (FPCB) embedded between the sunken polymer and the piezoelectric element and electrically connected to the electrode pattern.

公开(公告)号：US10739666B2

公开(公告)日：2020-08-11

申请号：US15985931

申请日：2018-05-22

Applicant: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY

Inventor： Donghyun Hwang ,  Doik Kim ,  Junsik Kim ,  Youngsu Cha

IPC: G03B17/02 ,  G01D11/24 ,  G03B11/04 ,  G03B9/06

Abstract: Disclosed is a shielding device, which includes: a casing having an open portion; a deformable unit installed at the casing and configured to be deformed in one direction at a predetermined temperature; a power transmission unit connected to the deformable unit to transmit a power generated by the deformation of the deformable unit; and a shielding unit installed at the casing and connected to the power transmission unit to receive the power from the power transmission unit, the shielding unit being configured to open or close the open portion, wherein the deformable unit is deformed at a first temperature to be expanded or compressed, and the shielding unit closes the open portion by means of the deformation of the deformable unit.

公开(公告)号：US11566952B2

公开(公告)日：2023-01-31

申请号：US16951728

申请日：2020-11-18

Applicant: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY

Inventor： Youngsu Cha ,  Hojoon Kim

IPC: G01L1/16

Abstract: The present disclosure provides a tensile force detecting device including a piezoelectric element to generate an electrical signal by a load, the elastic thread connected to the piezoelectric element to support the load applied to the piezoelectric element, and a sewing thread connected to the piezoelectric element to transmit the load to the piezoelectric element.

公开(公告)号：US11290029B2

公开(公告)日：2022-03-29

申请号：US16711641

申请日：2019-12-12

Applicant: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY

Inventor： Youngsu Cha

IPC: H02N2/00 ,  B25J9/12

Abstract: The present disclosure provides a biomimetic mobile legged robot, which includes a body formed to extend in one direction and having a piezoelectric element, and a leg connected to intersect the body and having a piezoelectric element. Here, a power is supplied to the body and the leg, respectively, and the piezoelectric elements of the body and the leg are operated with the supplied power to cause a full body motion so that the legged robot moves.

公开(公告)号：US10720856B2

公开(公告)日：2020-07-21

申请号：US16170461

申请日：2018-10-25

Applicant: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY

Inventor： Youngsu Cha ,  Kahye Song

IPC: H02N1/00 ,  H01L41/09 ,  C08K3/22

Abstract: A composite actuator device includes a composite material that is configured to be driven by applying power thereto and that is composed of a silicone; and from 1 to 20 wt % of an iron oxide mixed in the silicone; and a metal plate that is spaced apart from the composite material by a predetermined distance. When the power is applied, the composite actuator is driven toward the metal plate by an electrostatic attractive force. Preferably, the composite actuator device has a resonance frequency of 3±0.1 Hz.