Patents by Inventor Chul Hyun Kim

Chul Hyun 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).

  • Patent number: 11967440
    Abstract: A paste for a reference electrode according to an embodiment of the present disclosure includes silver chloride powder and a carbon-based conductive material. The carbon-based conductive material may include at least one compound selected from the group consisting of carbon nanotubes, graphite, graphene, and carbon black. The reference electrode formed of the paste for a reference electrode according to an exemplary embodiment may provide improved mechanical properties and electrochemical properties.
    Type: Grant
    Filed: May 3, 2022
    Date of Patent: April 23, 2024
    Assignee: I-SENS, INC.
    Inventors: Young Jea Kang, In Seok Jeong, Chul Hyun Park, Suk Joon Kim, Yoon Beom Park
  • Publication number: 20240108391
    Abstract: Present disclosure provides a cooling device with safety features and methods for controlling temperature of the cooling device for safe cooling of target surface.
    Type: Application
    Filed: November 30, 2023
    Publication date: April 4, 2024
    Inventors: Gun-Ho KIM, Jae Bum CHO, Dae Hyun KIM, Chul Ho LEE
  • Patent number: 11949634
    Abstract: Technologies directed to a control circuit using dynamic signal compression are described. A control circuit includes a front-end module (FEM) coupled to an RF cable, the FEM having a low-noise amplifier (LNA). The control circuit further includes an automatic gain control (AGC) circuitry coupled to the FEM. The AGC circuitry receives a first radio frequency (RF) signal having a first portion of one or more symbols and a second portion of one or more symbols. The AGC circuitry further amplifies the first portion to generate a first portion of an output signal. The AGC circuitry further compresses the second portion to obtain a second portion of the output signal. The AGC circuitry further sends a control signal to cause the FEM to change a gain state value of the LNA from a first value to a second value based on a comparison between a voltage of the output signal and a reference voltage.
    Type: Grant
    Filed: March 28, 2022
    Date of Patent: April 2, 2024
    Assignee: Amazon Technologies, Inc.
    Inventors: Nathan Labadie, Divya Naveenan, In Chul Hyun, Cheol Su Kim
  • Publication number: 20240099085
    Abstract: A display device includes a pixel. The pixel is electrically connected to a first power line, a second power line, and a data line. The pixel includes a first transistor, and a capacitor electrically connected between a gate electrode of the first transistor and an electrode of the first transistor. In a plan view, the data line extends in a second direction. The first power line extends in a first direction intersecting the second direction and overlaps the data line and the gate electrode of the first transistor. The second power line extends in the second direction, overlaps the data line, and overlaps the gate electrode of the first transistor.
    Type: Application
    Filed: August 8, 2023
    Publication date: March 21, 2024
    Applicant: Samsung Display Co., LTD.
    Inventors: Sung Chan HWANG, Dong Hyun KIM, Chul Kyu KANG, Hey Jin SHIN, Seo Won CHOE, Chae Han HYUN
  • Patent number: 11928171
    Abstract: An example uniform resource locator (URL) information providing method includes obtaining a text from a document including location information and identifying the location information, transmitting an original URL corresponding to the identified location information to an external apparatus and receiving a shortened URL corresponding to the original URL, generating an optical recognition code corresponding to the received shortened URL and obtaining information related to a content provided from the original URL from the external apparatus based on the original URL, changing the document based on the shortened URL, the optical recognition code, and the information related to the content provided from the original URL, and generating the changed document as page description language data.
    Type: Grant
    Filed: September 20, 2021
    Date of Patent: March 12, 2024
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Ji Hyun Yoon, Jung Nam Bae, Yoon Soo Lee, Chul Gee Lee, Tae Soon Kim
  • Publication number: 20240042522
    Abstract: Provided is an indeterminate copper material for electrolytic copper foil and a preparation method thereof. Specifically, the present disclosure relates to an indeterminate copper material for electrolytic copper foil, which exhibits excellent dissolution performance when dissolved in an electrolyte to manufacture electrolytic copper foil, contributes to securing work stability during the manufacture of electrolytic copper foil, and is simple to prepare, thereby reducing manufacturing costs, and a preparation method thereof.
    Type: Application
    Filed: April 22, 2022
    Publication date: February 8, 2024
    Inventors: Chul Hyun KIM, Sangyum KIM, Min Su KANG, Hyun Ho YOO
  • Patent number: 11576255
    Abstract: A flexible printed circuit board includes: a base film; a first circuit pattern disposed on an upper surface of the base film; a second circuit pattern disposed on a lower surface of the base film; and a boundary reinforcing pattern expanding the first circuit pattern in a width direction of the first circuit pattern based on a virtual boundary along which the first circuit pattern and the second circuit pattern meet each other in an overlay of the first circuit pattern and the second circuit pattern.
    Type: Grant
    Filed: February 25, 2021
    Date of Patent: February 7, 2023
    Assignee: SAMSUNG ELECTRO-MECHANICS CO., LTD.
    Inventors: Ji Won Lee, Kwang Youl Pyo, Chul Hyun Kim
  • Publication number: 20220151061
    Abstract: A flexible printed circuit board includes: a base film; a first circuit pattern disposed on an upper surface of the base film; a second circuit pattern disposed on a lower surface of the base film; and a boundary reinforcing pattern expanding the first circuit pattern in a width direction of the first circuit pattern based on a virtual boundary along which the first circuit pattern and the second circuit pattern meet each other in an overlay of the first circuit pattern and the second circuit pattern.
    Type: Application
    Filed: February 25, 2021
    Publication date: May 12, 2022
    Inventors: Ji Won Lee, Kwang Youl Pyo, Chul Hyun Kim
  • Patent number: 10445778
    Abstract: Disclosed are a system for identifying a user at a close range and an information providing system and method using the same, and more particularly to a close-range user identification system and an information providing system and method using the same, in which at least one user located at a close range visible to a client's naked eyes is searched and identified through a network or close-range communication directing, and opened information of the at least one identified user or a location-based advertisement is given to the at least one searched user.
    Type: Grant
    Filed: March 31, 2014
    Date of Patent: October 15, 2019
    Inventors: Gwon Young Kim, Dong Min Shin, Dong Suk Chang, Chul Hyun Kim, Young Bae You
  • Publication number: 20150056405
    Abstract: The present invention provides a PLA flooring material comprising: a marble chip surface layer comprising a PLA (poly lactic acid) resin; an adhesive layer and a plywood layer formed under the marble chip surface layer; and a surface treatment layer formed on the marble chip surface layer. In addition, the present invention provides a method for manufacturing a marble chip flooring material, comprising the steps of: preparing a marble chip surface layer comprising a PLA resin; forming an adhesive layer and a plywood layer under the marble chip surface layer; and forming a surface treatment layer on the marble chip surface layer.
    Type: Application
    Filed: December 27, 2012
    Publication date: February 26, 2015
    Inventor: Chul Hyun Kim
  • Publication number: 20150050449
    Abstract: Disclosed therein is a flooring, which can secure environment-friendliness by forming a surface layer laminated on an upper face of a base layer using PLA (Poly Lactic Acid) resin instead of wood, easily provide a handcraft surface texture by applying a curved pattern onto the surface of the surface layer using embossing rollers at the time that the surface layer is manufactured, and prevent compression, scratches, discoloration, and so on in comparison with woods. The flooring constructed on a floor of a building includes: a base layer made from one of an MDF, an HDF, and a plywood; and a surface layer having a reinforced layer, a printed layer, and a transparent layer which are laminated on an upper face of the base layer in order, at least one of the layers being made of PLA (Poly Lactic Acid) resin. A curved pattern is formed on an upper face of the surface layer.
    Type: Application
    Filed: February 4, 2013
    Publication date: February 19, 2015
    Inventors: Jee Woong Kim, Gyu Yull Kim, Chul Hyun Kim
  • Publication number: 20120301727
    Abstract: The present invention provides flooring material which comprises a thermal conductive base material with a resin film including a carbon nano-tube; or a thermal conductive sheet. The flooring material of the present invention has high floor heating efficiency because thermal conduction is high and can save energy.
    Type: Application
    Filed: February 9, 2011
    Publication date: November 29, 2012
    Inventors: Chul Hyun Kim, Han Chul Jang