Patents by Inventor Hyeong-Jun Kim

Hyeong-Jun Kim has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Publication number: 20250143115
    Abstract: A display device includes a plate including an open part, a lower film disposed on the plate, a first substrate disposed on the lower film, a first connection line disposed on the first substrate, a pad part inserted into a first contact hole penetrating through the first connection line, the first substrate, and the lower film, where the pad part is connected to the first connection line, and a flexible film including a first lead electrode inserted into the open part of the plate. The first lead electrode includes a pin part protruding from an upper surface of the first lead electrode and penetrating through the pad part.
    Type: Application
    Filed: June 25, 2024
    Publication date: May 1, 2025
    Inventors: Jung Kyu CHOI, Hyeong Jun KIM, Ju An NA, Ki Sik BAN, Su Chang RYU, Suk Ho CHOI
  • Publication number: 20250123122
    Abstract: The present invention relates to a pressure sensor using a magnetic field. The pressure sensor using a magnetic field of the present invention includes an elastic portion containing a magnetic material having remanent magnetization; and a circuit portion configured to generate a Hall voltage in response to a change in a magnetic field, wherein when at least a portion of the elastic portion is deformed due to external pressure, causing a change in the magnetic field acting on the circuit portion, the circuit portion detects a magnitude of the Hall voltage corresponding to the change in the magnetic field.
    Type: Application
    Filed: September 14, 2023
    Publication date: April 17, 2025
    Inventors: One Jae SUL, Jeen Gi KIM, Hyeong Jun KIM
  • Publication number: 20250117090
    Abstract: Provided is a haptic input device for providing haptic feedback to a user, the haptic input device including a case for providing an internal space, a shaft having an end exposed outside, and another end located in the internal space of the case, a magnetic circuit part positioned on at least one side of the shaft to form a magnetic circuit, an elastic part contacting the other end of the shaft to provide a restoring force to the shaft, and a magnetorheological fluid filled in at least a portion of the internal space.
    Type: Application
    Filed: December 19, 2024
    Publication date: April 10, 2025
    Applicant: CK MATERIALS LAB CO., LTD.
    Inventors: Hyeong Jun KIM, Jeen Gi KIM, In Sik JEE
  • Publication number: 20250091584
    Abstract: The present invention relates to a control system and method for a vehicle suspension system. More specifically, the present invention relates to a control system and method for a vehicle suspension system capable of controlling a suspension system of a traveling vehicle by detecting a road surface condition of a lane.
    Type: Application
    Filed: September 18, 2023
    Publication date: March 20, 2025
    Inventors: Hyeong Jun KIM, Young Chul CHA
  • Patent number: 12251731
    Abstract: A haptic device includes: a housing; a magnetic field generation unit disposed in the housing; an elastic support unit connected to the housing; a vibration unit which is connected to the elastic support unit, and which includes an elastic material in which magnetic particles are dispersed in a matrix; and a control unit for transmitting a signal to the magnetic field generation unit.
    Type: Grant
    Filed: July 14, 2021
    Date of Patent: March 18, 2025
    Assignee: CK MATERIALS LAB CO., LTD.
    Inventors: Jeen Gi Kim, Hyeong Jun Kim, Cheol Sung Jeong, In Sik Jee
  • Patent number: 12251730
    Abstract: Disclosed is a flexible tactile actuator including a tactile transmitter configured to be flexible and including magnetic particles capable of being polarized in response to an external magnetic field and a matrix layer including the magnetic particles, a magnetic field generator disposed below the tactile transmitter and configured to generate a magnetic field in the tactile transmitter, and an elastic member provided in a shape of a film, having at least a portion in surface contact with the magnetic field generator, and attached to be in surface contact with one of a top surface and a bottom surface of the tactile transmitter.
    Type: Grant
    Filed: October 19, 2022
    Date of Patent: March 18, 2025
    Assignee: CK MATERIALS LAB CO., LTD.
    Inventors: Hyeong Jun Kim, Myung Sun Park, Jong Hun Lee, Ji Goo Kang, Nam Seok Kim
  • Patent number: 12248634
    Abstract: An apparatus and method for generating and reproducing pattern data is provided. The apparatus for generating pattern data includes an input data reception unit for receiving input data according to a user selection; a controller for determining pattern information on the basis of the input data and generating pattern data including the determined pattern information; and a communication unit for transmitting the generated pattern data to the apparatus for reproducing pattern data.
    Type: Grant
    Filed: January 22, 2024
    Date of Patent: March 11, 2025
    Assignee: CK MATERIALS LAB CO., LTD.
    Inventors: Hyeong Jun Kim, Jong Hun Lee
  • Publication number: 20250081769
    Abstract: A display device includes a display panel including a substrate including a display area and a non-display area which is adjacent to the display area, pixels which are on the substrate, in the display area, and a pad electrode which is on the substrate, in the non-display area, a support member which overlaps the display area and the non-display area and is under the substrate of the display panel, the support member including a connecting wire which is in the non-display area, penetrates a thickness of the support member and is electrically connected to the pad electrode, and a connecting member which contacts each of the pad electrode of the display panel and the connecting wire of the support member and connects the pad electrode to the connecting wire.
    Type: Application
    Filed: February 23, 2024
    Publication date: March 6, 2025
    Inventors: HIROTSUGU KISHIMOTO, HYEONG-JUN KIM, SUNGGUK AN, JUNHO KWACK, KI-SIK BAN, SUKHO CHOI
  • Publication number: 20250060786
    Abstract: A display device includes a substrate that includes a display area and a non-display area, a display layer disposed on the substrate and overlapping the display area, and a support plate disposed under the substrate. The support plate includes a first region disposed on a rear surface of the display layer, a second region connected to the first region and including a lattice pattern, and a third region connected to the second region and disposed on a rear surface of the first region. The second region is bent and overlaps a bending area of the non-display area of the substrate.
    Type: Application
    Filed: March 7, 2024
    Publication date: February 20, 2025
    Applicant: Samsung Display Co., LTD.
    Inventors: Su Chang RYU, Sung Guk AN, HYEONG-JUN KIM, Suk Ho CHOI, Jung Kyu CHOI
  • Publication number: 20250044885
    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.
    Type: Application
    Filed: October 18, 2024
    Publication date: February 6, 2025
    Applicant: CK MATERIALS LAB CO., LTD.
    Inventors: Hyeong Jun KIM, Jeen Gi KIM, Min Jae KANG, Dong Wook KIM
  • Publication number: 20240418618
    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.
    Type: Application
    Filed: August 26, 2024
    Publication date: December 19, 2024
    Applicant: CK MATERIALS LAB CO., LTD.
    Inventors: Hyeong Jun KIM, Seong Jun SHIN, Jeong Hoon KIM, Seung Hyun SON
  • Publication number: 20240419203
    Abstract: Provided is a magnetorheological rotating load apparatus and a control method therefor, the magnetorheological rotating load apparatus including a housing, a yoke fixed in the housing, a shaft mounted to rotate in the housing, at least one rotating ring connected to the shaft to rotate in conjunction with the rotation of the shaft, a coil disposed in the housing, and a magnetorheological fluid filled in at least a portion of the housing, wherein at least a portion of the shaft positioned inside the housing is made of a non-magnetic material.
    Type: Application
    Filed: August 30, 2024
    Publication date: December 19, 2024
    Applicant: CK MATERIALS LAB CO., LTD.
    Inventors: Hyeong Jun KIM, Jeen Gi KIM, In Sik JEE
  • Publication number: 20240404433
    Abstract: An electronic device includes a display panel including a folding area and a non-folding area which is adjacent to the folding area along a first direction, and a support member facing the display panel. The support member includes in order from the display panel, an upper plate which faces the folding area and the non-folding area, has a thickness and in which are defined a plurality of openings corresponding to the folding area, and a lower plate having a thickness which is greater than the thickness of the upper plate and including a first lower plate and a second lower plate each corresponding to the folding area and the non-folding area. At the folding area, the second lower plate is spaced apart from the first lower plate by a gap along the first direction.
    Type: Application
    Filed: August 8, 2024
    Publication date: December 5, 2024
    Inventors: SEUNGHWA HA, SANGJAE KIM, HYEONG-JUN KIM, SEUNG-HO JUNG, IN-WOO JEONG
  • Patent number: 12147619
    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.
    Type: Grant
    Filed: February 22, 2023
    Date of Patent: November 19, 2024
    Assignee: CK MATERIALS LAB CO., LTD.
    Inventors: Hyeong Jun Kim, Jeen Gi Kim, Min Jae Kang, Dong Wook Kim
  • Publication number: 20240371241
    Abstract: A method of providing a vehicle with information of an incoming message using a tactile signal is provided. The method includes receiving the incoming message at the vehicle, selecting a type of the tactile signal among different types of tactile signals depending on the information of the received incoming message to transform the incoming message to the selected type of the tactile signal, and transforming the information of the incoming message into the selected type of the tactile signal and providing the information of the incoming message via the selected type of the tactile signal in the vehicle by a tactile signal operator.
    Type: Application
    Filed: July 12, 2024
    Publication date: November 7, 2024
    Inventors: Seoung Hun DO, Hyeong Jun KIM
  • Publication number: 20240365583
    Abstract: A display device includes a substrate having a light emission area, a light emitting element layer including a light emitting element on the light emission area, and an sensing layer on the light emitting element layer and including a sensing electrode having a first opening overlapping the light emission area, a first refraction layer directly on the sensing electrode and having a second opening overlapping the light emission area, and a second refraction layer on the light emitting element layer and the first refraction layer, a first optical refractive index of the first refraction layer being less than a second optical refraction index of the second refraction layer.
    Type: Application
    Filed: July 5, 2024
    Publication date: October 31, 2024
    Inventors: Hyeong Jun KIM, Ji Ryun PARK, Chi Wook AN, Mi Ran JI
  • Publication number: 20240347245
    Abstract: The present invention relates to a magnetorheological fluid. The magnetorheological fluid according to the present invention is a magnetorheological fluid whose flow characteristics change in response to the application of an external magnetic field, the magnetorheological fluid including: a dispersion medium containing oil; magnetic particles; and an additive, wherein the oil has a triglyceride structure composed of ester bonds between glycerol and fatty acid.
    Type: Application
    Filed: January 9, 2024
    Publication date: October 17, 2024
    Inventors: Hyeong Jun KIM, Young Chul CHA, Seong Jun SHIN, Jeong Hoon KIM
  • Publication number: 20240338083
    Abstract: The present invention relates to a tactile keyboard and a tactile input device. The tactile keyboard according to the present invention, which includes a plurality of keys, comprises a base portion providing a region on which the plurality of keys are arranged, wherein at least one of the keys comprises: a magnetic field generator which is arranged on the base portion; a cap portion which provides one surface so that a user comes in contact with the surface to apply an external force; an elastic portion which is disposed between the base portion and the cap portion and elastically supports the cap portion; and a motion portion which is at least partially connected to the cap portion and includes an elastic material, in which magnetic particles are distributed in a matrix.
    Type: Application
    Filed: June 20, 2024
    Publication date: October 10, 2024
    Applicant: CK MATERIALS LAB CO., LTD.
    Inventors: Hyeong Jun KIM, Jeen Gi KIM, In Sik JEE
  • Patent number: 12087185
    Abstract: An electronic device includes a display panel including a folding area and a non-folding area which is adjacent to the folding area along a first direction, and a support member facing the display panel. The support member includes in order from the display panel, an upper plate which faces the folding area and the non-folding area, has a thickness and in which are defined a plurality of openings corresponding to the folding area, and a lower plate having a thickness which is greater than the thickness of the upper plate and including a first lower plate and a second lower plate each corresponding to the folding area and the non-folding area. At the folding area, the second lower plate is spaced apart from the first lower plate by a gap along the first direction.
    Type: Grant
    Filed: January 9, 2023
    Date of Patent: September 10, 2024
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Seunghwa Ha, Sangjae Kim, Hyeong-Jun Kim, Seung-Ho Jung, In-Woo Jeong
  • Patent number: 12080155
    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.
    Type: Grant
    Filed: June 7, 2023
    Date of Patent: September 3, 2024
    Assignee: CK MATERIALS LAB CO., LTD.
    Inventors: Hyeong Jun Kim, Jong Hun Lee, In Sik Jee