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公开(公告)号：US20240418618A1
公开(公告)日：2024-12-19
申请号：US18814886
申请日：2024-08-26
Applicant: CK MATERIALS LAB CO., LTD.
Inventor： Hyeong Jun KIM , Seong Jun SHIN , Jeong Hoon KIM , Seung Hyun SON
Abstract: The present invention relates to a method for evaluating the characteristics of a magnetorheological fluid. The method for evaluating the characteristics of magnetorheological fluid, according to the present invention, is for evaluating the characteristics of magnetorheological fluid comprising a dispersion medium and magnetic particles and is characterized by comprising the following steps: (a) preparing a container in which a magnetorheological fluid is filled or a flow channel in which a magnetorheological fluid flows; (b) placing a coil part such that the container or flow channel is positioned in the hollow portion of the coil part; and (c) using the coil to measure an impedance signal or inductance signal with respect to the magnetorheological fluid.
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公开(公告)号：US20230393677A1
公开(公告)日：2023-12-07
申请号：US18172736
申请日：2023-02-22
Applicant: CK MATERIALS LAB CO., LTD.
Inventor： Hyeong Jun KIM , Jeen Gi KIM , Min Jae KANG , Dong Wook KIM
IPC: G06F3/0362 , G06F3/01 , G01L5/00
CPC classification number: G06F3/0362 , G06F3/016 , G01L5/0042
Abstract: The present invention relates to a method of evaluating a magneto-rheological rotating load device. In a method of evaluating a structural defect of a magneto-rheological rotating load device according to the present invention, the magneto-rheological rotating load device includes a housing, a shaft rotatably installed in the housing, one or more rotary rings connected to the shaft and configured to rotate in conjunction with a rotation of the shaft, a coil part disposed in the housing, and a magneto-rheological fluid with which at least a part in the housing is filled, and the method includes measuring whether a torque value, which is applied when the shaft and the rotary ring rotate, decreases from an initial set value within a predetermined range.
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公开(公告)号：US20230316881A1
公开(公告)日：2023-10-05
申请号：US18330388
申请日：2023-06-07
Applicant: CK MATERIALS LAB CO., LTD.
Inventor： Hyeong Jun KIM , Jong Hun LEE , In Sik JEE
CPC classification number: G08B6/00 , G06F3/016 , G06F3/165 , G10L21/06 , H04R3/00 , H04S7/30 , H04R2420/07 , H04R2430/01
Abstract: Provided is a haptic device including a medium for receiving a digital sound signal from a portable terminal, a digital-to-analog converter (DAC) for receiving the digital sound signal from the medium and converting the digital sound signal into an analog signal, a sound outputter for receiving the analog signal and outputting sound, and a haptic actuator driven by receiving the analog signal.
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公开(公告)号：US11714490B2
公开(公告)日：2023-08-01
申请号：US16769568
申请日：2019-11-07
Applicant: CK MATERIALS LAB CO., LTD.
Inventor： Hyeong Jun Kim , Jong Hun Lee , Jong Ki Lee , Ihn Beom Lee
IPC: G06F3/01 , H02P25/032 , H02K33/16 , H02K1/17 , H02K33/10
CPC classification number: G06F3/016 , H02K1/17 , H02K33/10 , H02K33/16 , H02P25/032
Abstract: A radial magnet actuator includes a housing having an inner space, a moving body including a mass body provided to relatively move in the inner space, and a hollow radial magnet provided in the mass body, an elastic member configured to elastically support the moving body from one side of the inner space, and a hollow coil part provided at an upper side of the inner space, with at least a portion inserted into the hollow of the radial magnet, wherein the radial magnet is magnetized in a radial direction.
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公开(公告)号：US11623244B2
公开(公告)日：2023-04-11
申请号：US17377540
申请日：2021-07-16
Applicant: CK MATERIALS LAB CO., LTD.
Inventor： Hyeong Jun Kim , Jong Hun Lee , Jeong Bum Lee , Ji Goo Kang , Jong Hyung Jung
Abstract: According to one embodiment, a tactile actuator can comprise: a housing having an accommodation space therein; a cap covering at least a portion of the accommodation space; a vibration unit disposed inside the accommodation space; an elastic member for connecting the housing and the vibration unit such that the vibration unit can vibrate with respect to the housing; a coil for forming a magnetic field to drive the vibration unit; and a control unit for determining any one driving mode on the basis of collected driving information from among a plurality of preset driving modes and determining, according to the driving mode, the characteristic of a current to be applied to the coil.
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Patent Agency Ranking
公开(公告)号：US20210405752A1
公开(公告)日：2021-12-30
申请号：US16769568
申请日：2019-11-07
Applicant: CK MATERIALS LAB CO., LTD.
Inventor： Hyeong Jun Kim , Jong Hun Lee , Jong Ki Lee , Ihn Beom Lee
IPC: G06F3/01 , H02K33/16 , H02P25/032
Abstract: A radial magnet actuator includes a housing having an inner space, a moving body including a mass body provided to relatively move in the inner space, and a hollow radial magnet provided in the mass body, an elastic member configured to elastically support the moving body from one side of the inner space, and a hollow coil part provided at an upper side of the inner space, with at least a portion inserted into the hollow of the radial magnet, wherein the radial magnet is magnetized in a radial direction.
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公开(公告)号：US20210159815A1
公开(公告)日：2021-05-27
申请号：US17059446
申请日：2018-12-19
Applicant: CK MATERIALS LAB CO., LTD.
Inventor： Hyeong Jun KIM , Jong Hun LEE , Ki Suk SON
Abstract: A button type actuator according to one embodiment may comprise: a case; a button part having at least a part which is moved with respect to the case by a user's pressure; a vibrator connected to the button part and including a magnetic body; and a coil for generating a magnetic field on the vibrator.
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公开(公告)号：US11011032B2
公开(公告)日：2021-05-18
申请号：US16261978
申请日：2019-01-30
Applicant: CK MATERIALS LAB CO., LTD.
Inventor： Seoung Hun Do , Hyeong Jun Kim
Abstract: Provided is a tactile information supply module. The tactile information supply module includes a receiver for receiving message information from the outside, a controller for converting the message information into a tactile signal, and an operator for providing tactile information to a user based on the tactile signal, wherein the operator includes at least one tactile sensation provider comprising magnetic particles and a matrix material, and wherein the tactile sensation provider is transformed in response to an external magnetic field to provide the tactile information.
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9.发明申请公开(公告)号：US20200379571A1
公开(公告)日：2020-12-03
申请号：US16998093
申请日：2020-08-20
Applicant: CK MATERIALS LAB CO., LTD.
Inventor： Hyeong Jun KIM , Ji Goo KANG , Jong Hun LEE , Jeong Beom LEE , Jong Hyung JUNG
IPC: G06F3/01 , A63F13/285 , A63F13/424 , A63F13/24 , G10H1/00
Abstract: A haptic device according to one embodiment can comprise: a database unit for storing acoustic information or receiving the acoustic information from an external device; a control unit for converting the acoustic information into an electrical signal according to a predetermined pattern; a driving unit for generating a motion signal on the basis of the electrical signal; and a transfer unit for transferring a patterned tactile signal to a user by means of the motion signal.
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公开(公告)号：US20200241643A1
公开(公告)日：2020-07-30
申请号：US16757375
申请日：2018-10-19
Applicant: CK MATERIALS LAB CO., LTD.
Inventor： Hyeong Jun KIM , Jong Hun LEE , Ki Suk SON , Min Ho KIM
Abstract: The present invention relates to a haptic information providing system. A haptic information providing system according to the present invention comprises: a station for generating haptic pattern data on the basis of an input signal; and a haptic device for receiving haptic pattern data from the station, generating a haptic stimulus, and transmitting the generated haptic stimulus to a user.
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