Patents by Inventor Yong Won Choi

Yong Won Choi 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).

  • Patent number: 12148589
    Abstract: In an embodiment a shape-transformable switch apparatus includes a housing comprising an accommodating region with a high voltage electrode, a Electrorheological (ER) fluid located in the accommodating region, the ER fluid configured to change viscosity and rigidity, a switch cover shielding an upper portion of the housing, the switch cover configured to change a shape based on changes of the viscosity and of the rigidity of the ER fluid; and a controller configured to allow a voltage to be applied to the high voltage electrode such that an electrostatic attraction is generated so that the ER fluid flows and is pressed against the switch cover thereby changing a shape of the switch cover.
    Type: Grant
    Filed: October 21, 2022
    Date of Patent: November 19, 2024
    Assignees: Hyundai Motor Company, Kia Corporation, Korea University of Technology and Education Industry-University Cooperation Foundation
    Inventors: Yoon Im, Yong Won Choi, Myung Hoe Kim, Joo Hwa Kim, Eun Jae Shin, Hyun U Ko, Sang Youn Kim
  • Patent number: 12125637
    Abstract: In an embodiment a shape-transformable switch apparatus includes an electromagnet arranged inside a housing, wherein the electromagnet has an outer circumferential surface wound with a solenoid coil and is configured to provide a magnetic field when a power is applied to the solenoid coil, a Magnetorheological Elastomer (MRE) disposed on an upper portion of the electromagnet, wherein the MRE is configured to change from an initial soft state to a relatively hard state when the power is applied to the solenoid coil and configured to be pressed and to move upward when the electromagnet moves upward and a switch cover disposed on an upper portion of the housing, the switch cover configured to form a switch shape and to protrude outward when the MRE moves in an upward direction.
    Type: Grant
    Filed: December 5, 2022
    Date of Patent: October 22, 2024
    Assignees: Hyundai Motor Company, Kia Corporation, Korea University Of Technology And Education Industry-University Cooperation Foundation
    Inventors: Yoon Im, Yong Won Choi, Myung Hoe Kim, Joo Hwa Kim, Seok Han Lee, Hyun U Ko, Sang Youn Kim
  • Patent number: 12117861
    Abstract: In an embodiment a magnetorheological fluid-based haptic knob apparatus includes a housing, a solenoid coil mounted inside the housing, the solenoid coil configured to generate a magnetic field thereby providing magnetic flux, a shaft connected to the housing and including a rotational rod, wherein the shaft is configured to generate a plurality of modes and a magnetorheological fluid accommodated inside the housing, the magnetorheological fluid configured to form a magnetic chain in response of the magnetic flux.
    Type: Grant
    Filed: November 9, 2022
    Date of Patent: October 15, 2024
    Assignees: Hyundai Motor Company, Kia Corporation, Korea University Of Technology And Education Industry-University Cooperation Foundation
    Inventors: Yoon Im, Yong Won Choi, Myung Hoe Kim, Joo Hwa Kim, In Ho Yun, Hyun U Ko, Sang Youn Kim
  • Publication number: 20230402803
    Abstract: Provided is a holder device for a power supply rail, the holder device including a main body part positioned inside a power supply rail mounted in a vehicle interior and provided to be slidably movable in a rail direction, a head part rotatably coupled to the main body part, configured to fix a sliding movement position of the main body part inside the power supply rail, and formed to contact a pair of electrodes provided inside the power supply rail, and a fixing part formed to selectively protrude to an outside of the main body part when the head part rotates and provided to support an inner side of the power supply rail in a state in which the sliding movement position of the main body part is fixed.
    Type: Application
    Filed: December 8, 2022
    Publication date: December 14, 2023
    Inventors: Yong Won Choi, Hye Kyung Kim, Dae Hee Lee, Myung Hoe Kim, Yeong Jae Jang, Kwan Woo Lee
  • Publication number: 20230340099
    Abstract: A composition containing a chemokine inhibitor, a colony stimulating factor inhibitor, and an cancer immunotherapy agent, and a method for treatment of cancer, and a combination therapy are disclosed. The composition containing a CXCL12 inhibitor, a colony stimulating factor 1 (CSF1) inhibitor, and a cancer immunotherapy agent, for prevention and/or treatment of cancer, increases the infiltration and activity of CD8 cytotoxic T cells in cancers resistant to cancer immunotherapy agents, especially PD-1/PD-L1 immune checkpoint inhibitors, to effectively reduce tumor sizes and thus is useful for prevention and treatment of cancers resistant to immunotherapy agents, especially cancers overexpressing p16INK4A.
    Type: Application
    Filed: February 8, 2021
    Publication date: October 26, 2023
    Applicant: AJOU UNIVERSITY INDUSTRY-ACADEMIC COOPERATION FOUNDATION
    Inventors: Tae-Jun PARK, Jang-Hee KIM, Yong-Won CHOI
  • Patent number: 11754501
    Abstract: The present invention relates to a surface-enhanced Raman scattering substrate and a method of fabricating the same. More particularly, the surface-enhanced Raman scattering substrate according to an embodiment includes a substrate; a lower plasmonic layer formed on the substrate and based on a first metal nanostructure; an oxide layer formed on the lower plasmonic layer; and an upper plasmonic layer formed on the oxide layer and based on a second metal nanostructure.
    Type: Grant
    Filed: January 21, 2022
    Date of Patent: September 12, 2023
    Assignee: PICO FOUNDRY INC.
    Inventors: Hyung Joon Park, Hee Jin Gil, Si Jin Kim, Yong Won Choi
  • Publication number: 20230260735
    Abstract: In an embodiment a shape-transformable switch apparatus includes a housing comprising an accommodating region with a high voltage electrode, a Electrorheological (ER) fluid located in the accommodating region, the ER fluid configured to change viscosity and rigidity, a switch cover shielding an upper portion of the housing, the switch cover configured to change a shape based on changes of the viscosity and of the rigidity of the ER fluid; and a controller configured to allow a voltage to be applied to the high voltage electrode such that an electrostatic attraction is generated so that the ER fluid flows and is pressed against the switch cover thereby changing a shape of the switch cover.
    Type: Application
    Filed: October 21, 2022
    Publication date: August 17, 2023
    Inventors: Yoon Im, Yong Won Choi, Myung Hoe Kim, Joo Hwa Kim, Eun Jae Shin, Hyun U Ko, Sang Youn Kim
  • Publication number: 20230259153
    Abstract: In an embodiment a magnetorheological fluid-based haptic knob apparatus includes a housing, a solenoid coil mounted inside the housing, the solenoid coil configured to generate a magnetic field thereby providing magnetic flux, a shaft connected to the housing and including a rotational rod, wherein the shaft is configured to generate a plurality of modes and a magnetorheological fluid accommodated inside the housing, the magnetorheological fluid configured to form a magnetic chain in response of the magnetic flux.
    Type: Application
    Filed: November 9, 2022
    Publication date: August 17, 2023
    Inventors: Yoon Im, Yong Won Choi, Myung Hoe Kim, Joo Hwa Kim, In Ho Yun, Hyun U Ko, Sang Youn Kim
  • Publication number: 20230253137
    Abstract: In an embodiment a shape-transformable switch apparatus includes an electromagnet arranged inside a housing, wherein the electromagnet has an outer circumferential surface wound with a solenoid coil and is configured to provide a magnetic field when a power is applied to the solenoid coil, a Magnetorheological Elastomer (MRE) disposed on an upper portion of the electromagnet, wherein the MRE is configured to change from an initial soft state to a relatively hard state when the power is applied to the solenoid coil and configured to be pressed and to move upward when the electromagnet moves upward and a switch cover disposed on an upper portion of the housing, the switch cover configured to form a switch shape and to protrude outward when the MRE moves in an upward direction.
    Type: Application
    Filed: December 5, 2022
    Publication date: August 10, 2023
    Inventors: Yoon Im, Yong Won Choi, Myung Hoe Kim, Joo Hwa Kim, Seok Han Lee, Hyun U Ko, Sang Youn Kim
  • Publication number: 20230226961
    Abstract: A bidirectional sliding armrest includes: an armrest cover located at an upper portion of a console body provided in a vehicle body so as to be spaced apart therefrom; a power transmission unit fastened to a lower portion of the armrest cover and configured to move to correspond to operation of the armrest cover; a console fixing unit located on the console body and configured to include a plurality of fixing recesses; and a locking unit located on a lower surface of the armrest cover. The locking unit is fixed to the plurality of fixing recesses, and configured to fix the lengthwise position of the armrest cover.
    Type: Application
    Filed: December 5, 2022
    Publication date: July 20, 2023
    Applicants: HYUNDAI MOTOR COMPANY, KIA CORPORATION, ECOPLASTIC CORPORATION
    Inventors: Yoon Im, Hye Kyung Kim, Yong Won Choi, Hae Ju Park
  • Patent number: 11698480
    Abstract: The present invention relates to an optical article, and an optical filter and an imaging device including the same. The optical article comprises: a near-infrared absorption glass substrate including a divalent copper ion as a chromatic ingredient; and a pigment dispersion layer formed on one surface or both surfaces of the near-infrared absorption glass substrate and having a near-infrared absorption pigment and an ultraviolet absorption pigment dispersed across the resin matrix thereof. Provided with a first and a second transmission cut-off region, the optical article has the advantage of allowing the fabrication of an excellent near-infrared cut-off filter that can effectively block light in near-infrared and ultraviolet bands and does not permit a difference in color sense with the change of incident angles.
    Type: Grant
    Filed: September 21, 2018
    Date of Patent: July 11, 2023
    Assignee: LMS CO., LTD.
    Inventors: Jeong Og Choi, Joo Young Kim, Seon Ho Yang, Min Soo Lee, Yong Won Choi
  • Patent number: 11459240
    Abstract: Disclosed are a method of manufacturing graphene and an apparatus therefor. The method of manufacturing graphene and the apparatus therefor according to the present disclosure allow production of high-quality graphene in a simple manner in a short time without addition of a separate additive.
    Type: Grant
    Filed: August 14, 2019
    Date of Patent: October 4, 2022
    Assignee: LMS CO., LTD
    Inventors: Ho Seong Na, Joo Young Kim, Min Soo Lee, Yong Won Choi
  • Patent number: 11294235
    Abstract: An optical film for efficiently and uniformly diffuses and collects the light from mini LEDs or micro LEDs, the bead diffusion layer and the pattern diffusion layer of the first diffusion sheet are formed such that a first diffusion rate of the light on the one surface of the first diffusion sheet is higher than a second diffusion rate of the light on the other surface of the first diffusion sheet.
    Type: Grant
    Filed: December 22, 2020
    Date of Patent: April 5, 2022
    Assignee: LMS CO., LTD.
    Inventors: Yong Won Choi, Ho Seong Na, Min Soo Lee, Woo Joo Lah
  • Publication number: 20210212527
    Abstract: A device according to an embodiment of the present disclosure is for assisting in sitting on and getting up from a toilet stool and having a communication module for transmitting an emergency call signal. The device assists in sitting on and getting up from the toilet stool which is provided in a restroom for users with restricted mobility, such as the elderly and the weak, patients with arthritis, patients with spinal disorders, etc. More particularly, the device assists in sitting on and getting up from the toilet stool which assists the restroom users to sit on or get up from the toilet stool so that the users may use the toilet stool more conveniently and safely, and has a communication module provided therewith for the users to transmit an emergency call signal that may notify a guardian or a relevant organization when an emergency occurs.
    Type: Application
    Filed: June 26, 2019
    Publication date: July 15, 2021
    Inventor: Yong Won CHOI
  • Patent number: 11027394
    Abstract: Provided is a load cup including a cup having an internal space, a pedestal provided in the internal space, able to be lifted up and down, and loading a wafer onto or unloading a wafer from a polishing head, and a plurality of arrangement parts having a plurality of fastening portions disposed around the pedestal, and moved horizontally in a direction of a center of the pedestal, and arrangement part bodies coupled to the plurality of fastening portions, respectively, and rotated or reciprocated so as to contact a lateral surface of the polishing head, adjusting a center of the wafer to be aligned with a center of the polishing head. A polishing process may then be performed on a layer formed on the wafer.
    Type: Grant
    Filed: June 28, 2018
    Date of Patent: June 8, 2021
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Jieun Yang, Dong-il Yoon, Taemin Earmme, Gui Hyun Cho, Seok Heo, Jong Hwi Seo, Yong Won Choi
  • Patent number: 10996200
    Abstract: A method for determining a position of a fault of equipment includes receiving a plurality of sound source signals from a plurality of sound source inputting apparatuses, determining an abnormal operation of the equipment by analyzing at least one sound source signal among the sound source signals, and extracting abnormal sound source signals from the sound source signals. The abnormal sound source signals are indicative of abnormal operation of the equipment. The method further includes determining a position of the abnormal operation based on a time difference between the abnormal sound source signals.
    Type: Grant
    Filed: August 6, 2018
    Date of Patent: May 4, 2021
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Kyoung-Whan Oh, Won-Yup Ko, Won-Ki Park, Ho-Youl Lee, Young-Il Jang, Yeon-Woo Choi, Yong-Won Choi
  • Publication number: 20210124217
    Abstract: An optical film for transmitting light emitted from a mini or micro light-emitting diode comprises a first diffusion sheet allowing the light to be emitted at one surface thereof, having, on the one surface thereof, a bead diffusion layer, which includes beads for the diffusion of the light, and having, on the other surface thereof, a pattern diffusion layer which includes a pattern for the diffusion of the light; and a first prism sheet having a plurality of prisms arranged on one surface thereof in a predetermined direction in order to concentrate the light that has passed through the first diffusion sheet, wherein the bead diffusion layer and the pattern diffusion layer of the first diffusion sheet can be formed such that a first diffusion rate of the light on the one surface of the first diffusion sheet is higher than a second diffusion rate of the light on the other surface of the first diffusion sheet.
    Type: Application
    Filed: December 22, 2020
    Publication date: April 29, 2021
    Applicant: LMS Co., Ltd.
    Inventors: Yong Won CHOI, Ho Seong NA, Min Soo LEE, Woo Joo LAH
  • Publication number: 20200241185
    Abstract: The present invention relates to an optical article, and an optical filter and an imaging device including the same. The optical article comprises: a near-infrared absorption glass substrate including a divalent copper ion as a chromatic ingredient; and a pigment dispersion layer formed on one surface or both surfaces of the near-infrared absorption glass substrate and having a near-infrared absorption pigment and an ultraviolet absorption pigment dispersed across the resin matrix thereof. Provided with a first and a second transmission cut-off region, the optical article has the advantage of allowing the fabrication of an excellent near-infrared cut-off filter that can effectively block light in near-infrared and ultraviolet bands and does not permit a difference in color sense with the change of incident angles.
    Type: Application
    Filed: September 21, 2018
    Publication date: July 30, 2020
    Applicant: LMS Co., Ltd.
    Inventors: Jeong Og CHOI, Joo Young KIM, Seon Ho YANG, Min Soo LEE, Yong Won CHOI
  • Publication number: 20200131041
    Abstract: Disclosed are a method of manufacturing graphene and an apparatus therefor. The method of manufacturing graphene and the apparatus therefor according to the present disclosure allow production of high-quality graphene in a simple manner in a short time without addition of a separate additive.
    Type: Application
    Filed: August 14, 2019
    Publication date: April 30, 2020
    Inventors: Ho Seong NA, Joo Young KIM, Min Soo LEE, Yong Won CHOI
  • Patent number: 10553464
    Abstract: A method for controlling a semiconductor manufacturing facility includes measuring output change amounts of differential pressure sensors in the facility when pressure conditions change by a number of fans. The fans are then classified into different groups and subgroups and control sequences of the subgroups are determined based on the change amounts. Difference values are then calculated, and a control signal is generated to adjust the rotation speed of the fans.
    Type: Grant
    Filed: April 11, 2018
    Date of Patent: February 4, 2020
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Jae Won Jeong, Yi Jin, Chang Gi Min, Jin Woo Lee, Seok Heo, Yong Won Choi, Yun Jong Choi