Patents by Inventor Chang-Hyun Lee

Chang-Hyun Lee 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: 11923610
    Abstract: In various embodiments, an antenna array may comprise a dielectric; a first patch antenna disposed on a first region of the dielectric; a second patch antenna disposed on a second region of the dielectric; and a ground layer including a first sub-ground layer in contact with a lower portion of the first region of the dielectric, a third sub-ground layer in contact with a lower portion of the second region of the dielectric, and a second sub-ground layer spaced apart from a lower portion between the first region and the second region of the dielectric.
    Type: Grant
    Filed: May 24, 2017
    Date of Patent: March 5, 2024
    Assignees: Samsung Electronics Co., Ltd., HONGIK UNIVERSITY INDUSTRY-ACADEMIA COOPERATION FOUNDATION
    Inventors: Jae-Hyun Park, Jeong-Hae Lee, Min-Seo Park, Young-Ho Ryu, Sung-Bum Park, Kwi-Seob Um, Chong-Min Lee, Chang-Hyun Lee
  • Publication number: 20240066960
    Abstract: An embodiment vehicle door opening/closing system includes an inner panel defining a door open portion of a vehicle, the inner panel including an installation groove having a protruding or recessed shape, a driving device disposed in the installation groove of the inner panel, and a link mechanism installed on a chassis through a rotating shaft, a first end of the link mechanism being connected to the driving device such that power is transferred thereto, and a second end of the link mechanism being connected to a door such that, during driving of the driving device, the link mechanism rotates with reference to the rotating shaft to open/close the door.
    Type: Application
    Filed: January 23, 2023
    Publication date: February 29, 2024
    Inventors: Chang Hak Kang, Jae Seung Lee, Gook Hyun Jeon, Chan Woong Jeon, Sang Kyoung Han, Hae Hoon Lee
  • Publication number: 20240067465
    Abstract: An automatic removal system for automatically removing a tape and a resin exposed to the outside of a battery module includes a removal assembly including a removal device for removing the tape and the resin, and an automatic multi-axis robot coupled to the removal assembly and configured to drive to remove the tape and the resin of the battery module.
    Type: Application
    Filed: August 31, 2022
    Publication date: February 29, 2024
    Applicant: LG ENERGY SOLUTION, LTD.
    Inventor: Chang Hyun LEE
  • Publication number: 20240072423
    Abstract: An antenna assembly for use with a wireless communication wearable device. The antenna assembly includes a circuit board with components extending from a surface thereof. The antenna assembly has a first radiator antenna and a second radiator antenna which extends about the perimeter of the first antenna. A first slot is provided between the first radiator antenna and the second radiator antenna. The first slot separates the first radiator antenna from the second radiator antenna.
    Type: Application
    Filed: August 29, 2022
    Publication date: February 29, 2024
    Applicants: TE Connectivity Solutions GmbH, Tyco Electronics AMP Korea Co., Ltd.
    Inventors: Chang Hyun LEE, Jung-Hoon Kim, Dong Wook Park, Kiran Vanjani
  • Patent number: 11915790
    Abstract: A memory system includes a memory device including an interface circuit and a semiconductor memory, and a controller to generate a command for controlling the memory device. The interface circuit receives the command from the controller; determines whether the command is for the semiconductor memory or the interface circuit; and when it is determined that the command is for the interface circuit, performs a blocking operation to block transfer of the command between the interface circuit and the semiconductor memory and performs an internal operation of the interface circuit. The internal operation includes a signal controlling operation, a training operation, a read operation, an on-die termination operation, a ZQ calibration operation, or a driving force control operation.
    Type: Grant
    Filed: May 26, 2022
    Date of Patent: February 27, 2024
    Assignee: SK hynix Inc.
    Inventors: Chang Kyun Park, Young Sik Koh, Seung Jin Park, Dong Hyun Lee
  • Patent number: 11889333
    Abstract: The present disclosure relates to a distributed antenna monitoring apparatus for monitoring antennas of a distributed antenna system (DAS) installed in a building in a public safety radio network, and a method therefor.
    Type: Grant
    Filed: September 23, 2021
    Date of Patent: January 30, 2024
    Assignee: INNERTRON, INC.
    Inventors: Hak Rae Cho, Chang Hyun Lee, Hyu Jin Jung, Tae Wan Jeong
  • Patent number: 11888130
    Abstract: Disclosed are a secondary battery, an active material, a method for preparing the same, and a lithium secondary battery including the same. In an embodiment, provided is a secondary battery including a positive electrode, a negative electrode and an electrolyte, wherein the secondary battery further includes a reaction-inducing substance located in any one of the positive electrode, the negative electrode and the electrolyte, wherein the reaction-inducing substance forms a reaction product by consuming thermal energy when exposed to a predetermined temperature or higher in a use environment of the secondary battery, thereby improving thermal safety of the secondary battery.
    Type: Grant
    Filed: October 22, 2019
    Date of Patent: January 30, 2024
    Assignee: L&F CO., LTD.
    Inventors: Sung Kyun Chang, Sang Hoon Jeon, Jun Ho Shin, Ji Woo Oh, Hee Won Jung, Hye-Rim Bae, Chang Hyun Lee, Doe Hyoung Kim
  • Patent number: 11861142
    Abstract: Disclosed embodiments provide systems and methods implementing a web-browser plugin for providing requested information. A method for providing requested information comprises receiving, as a user interaction on a graphical user interface, a request to provide data associated with a target object presented on a web page, retrieving an object identifier associated with the target object based on a determined data accessibility, the object identifier incorporated in the web page, transmitting the retrieved object identifier to a plurality of systems storing data associated with the target object, the plurality of systems configured to provide data corresponding to the received object identifier in response to the received object identifier, receiving data responsive to transmitting the retrieved object, modifying the web page to include the received data, and presenting the web page on the graphical user interface.
    Type: Grant
    Filed: October 26, 2021
    Date of Patent: January 2, 2024
    Assignee: COUPANG CORP.
    Inventors: Bijoy Bordoloi, Ankit Arora, Khoa Nguyen, Chang Hyun Lee, Suk Min Ahn, Prithvis Mohanty
  • Publication number: 20230391968
    Abstract: The present inventive concept relates to a chemically modified anion exchange membrane and a method of preparing the same and, more particularly, an anion exchange membrane in which sulfonic acid groups in a perfluorinated sulfonic acid electrolyte membrane are substituted with anion conductive groups such as an ammonium group, a phosphonium group, an imidazolium group, a pyridinium group and a sulfonium group, and a method of preparing an anion exchange membrane by chemically modifying sulfonic acid groups in a perfluorinated sulfonic acid electrolyte membrane.
    Type: Application
    Filed: August 18, 2023
    Publication date: December 7, 2023
    Inventors: Chang Hyun LEE, Jin Pyo HWANG
  • Patent number: 11832781
    Abstract: Disclosed is a cyclone dust collector in which usability is improved. A vacuum cleaner comprising a cyclone dust collector, wherein the cyclone dust collector includes, a case configured to swirl suctioned air to separate dust from the suctioned air and accommodate the separated dust, a grill assembly separably installed in the case, and a cleaning portion included in the case and configured to remove dust adhered to a surface of the grill assembly when the grill assembly is separated from the case.
    Type: Grant
    Filed: December 1, 2020
    Date of Patent: December 5, 2023
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Jung Gyun Han, Won Min Lee, Chang Hyun Lee, Shin Kim
  • Publication number: 20230325076
    Abstract: An electronic system includes; a host providing a command and source data having a source data structure, a computing resource device operating in relation to destination data having a destination data structure different from the source data structure, and a storage device. The storage device receives the command from the host and includes a storage medium storing the source data, and a data reorganizing unit converting the source data into reorganized source data, wherein the storage device outputs the reorganized source data to the computing resource device as destination data.
    Type: Application
    Filed: February 8, 2023
    Publication date: October 12, 2023
    Inventors: SANG OAK WOO, CHANG HYUN LEE, JUN BUM PARK
  • Patent number: 11773228
    Abstract: The present invention relates to a chemically modified anion exchange membrane and a method of preparing the same and, more particularly, an anion exchange membrane in which sulfonic acid groups in a perfluorinated sulfonic acid electrolyte membrane are substituted with anion conductive groups such as ammonium group, phosphonium group, imidazolium group, pyridinium group and sulfonium group, and a method of preparing an anion exchange membrane by chemically modifying sulfonic acid groups in a perfluorinated sulfonic acid electrolyte membrane.
    Type: Grant
    Filed: April 20, 2022
    Date of Patent: October 3, 2023
    Inventors: Chang Hyun Lee, Jin Pyo Hwang
  • Publication number: 20230307679
    Abstract: The present invention relates to: a method for preparing a nanocomposite of an ionomer and a metal oxide acting as a radical scavenger; and a fuel cell comprising a nanocomposite prepared thereby and, more specifically, to: a method for preparing a highly-dispersible radical scavenger metal oxide-ionomer nanocomposite which can be redispersed to the size of nanoparticles in an aqueous alcohol solution or an ionomer solution; and a membrane electrode assembly and fuel cell comprising a nanocomposite prepared thereby.
    Type: Application
    Filed: August 17, 2021
    Publication date: September 28, 2023
    Applicant: DANKOOK UNIVERSITY CHEONAN CAMPUS INDUSTRY ACADEMIC COOPERATION FOUNDATION
    Inventor: Chang Hyun LEE
  • Patent number: 11755045
    Abstract: An internal voltage generation circuit includes a shifting source voltage generation circuit configured to generate a shifting source voltage having a voltage level that falls as a voltage level of a power supply voltage rises during a period when the power supply voltage is lower than a preset voltage level. The internal voltage generation circuit also includes an internal voltage regulator configured to generate a driving signal through a level shifting operation that is performed according to the shifting source voltage received when driving an internal voltage and configured to drive the internal voltage based on the driving signal.
    Type: Grant
    Filed: August 5, 2022
    Date of Patent: September 12, 2023
    Assignee: SK hynix Inc.
    Inventors: Jin Hoon Hyun, Chang Hyun Lee
  • Publication number: 20230198164
    Abstract: In various embodiments, an antenna array may comprise a dielectric; a first patch antenna disposed on a first region of the dielectric; a second patch antenna disposed on a second region of the dielectric; and a ground layer including a first sub-ground layer in contact with a lower portion of the first region of the dielectric, a third sub-ground layer in contact with a lower portion of the second region of the dielectric, and a second sub-ground layer spaced apart from a lower portion between the first region and the second region of the dielectric.
    Type: Application
    Filed: May 24, 2017
    Publication date: June 22, 2023
    Inventors: Jae-Hyun PARK, Jeong-Hae LEE, Min-Seo PARK, Young-Ho RYU, Sung-Bum PARK, Kwi-Seob UM, Chong-Min LEE, Chang-Hyun LEE
  • Patent number: 11640376
    Abstract: Provided are an electronic device and method for managing a decentralized identifier (DID) and more specifically a device and method for managing a DID by giving authority over the DID to a user according to a priority level selected by the user.
    Type: Grant
    Filed: January 30, 2020
    Date of Patent: May 2, 2023
    Assignee: ELECTRONICSAND TELECOMMUNICATIONS RESEARCH INSTITUTE
    Inventors: Hwan Jo Heo, Sung Kee Noh, Chang Hyun Lee, Nam Seok Ko
  • Patent number: 11592968
    Abstract: An example user terminal apparatus includes communication circuitry configured to be connected to a home network comprising a plurality of devices; a display configured to display a UI screen for managing the home network; a sensor configured to sense a user manipulation of the UI screen; and processing circuitry configured to change the UI screen displayed on the display according to the user manipulation. The UI screen is one of a plurality of service pages that are changeable according to a user manipulation in a first direction, the plurality of service pages being pages for respectively providing different home network management services. At least one of the plurality of service pages comprises an area that is displayable on the display according to a user manipulation in a second direction.
    Type: Grant
    Filed: October 10, 2021
    Date of Patent: February 28, 2023
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Jung-hyun Shim, Chang-won Kim, Ga-hyun Joo, Jin-sung Kim, Jong-youb Ryu, Chang-hyun Lee, Yong-hyun Lim
  • Patent number: 11526183
    Abstract: This disclosure relates to technologies for a sensor network, machine-to-machine (M2M) communication, machine type communication (MTC), and Internet of Things (IoT). This disclosure can be utilized in intelligent services based on the above technologies, such as smart homes, smart buildings, smart cities, smart cars or connected cars, health care, digital education, retail sales, security and safety related services, etc. This disclosure relates to a method for generating an instruction for controlling equipment on the basis of biometric information, comprising: a step of obtaining at least one biometric information; a step of determining whether to calculate a calorific value by using stored biometric information and the obtained biometric information, and calculating the calorific value by using the stored biometric information and the obtained biometric information according to the determined result; and generating an instruction for controlling the equipment on the basis of the calculated calorific value.
    Type: Grant
    Filed: October 10, 2019
    Date of Patent: December 13, 2022
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Byeong-Hoon Kwak, Chang-Hyun Lee, Jae-Ho Jung, Yang-Wook Kim, Yong-Chan Lee
  • Patent number: 11506277
    Abstract: An anti-theft device for a vehicle includes an approach prevention cover disposed in a shift lever housing to cover a shift cable connected to a shift lever so as to prevent the shift cable from being detached. Such an anti-theft vehicle makes is possible to easily and efficiently prevent theft of the vehicle by preventing a shift cable operated along with operation of a shift lever from being removed.
    Type: Grant
    Filed: July 16, 2019
    Date of Patent: November 22, 2022
    Assignees: Hyundai Motor Company, Kia Motors Corporation
    Inventors: Jeong Seon Min, Min Gi Song, Chang Hyun Lee, Sun Il Kim
  • Patent number: RE49440
    Abstract: A vertical-type nonvolatile memory device is provided in which differences between the sizes of channel holes in which channel structures are formed are reduced. The vertical-type nonvolatile memory device includes a substrate having channel hole recess regions in a surface thereof. Channel structures vertically protrude from the surface of the substrate on ones of the channel hole recess regions, and memory cell stacks including insulating and conductive layers are alternately stacked along sidewalls of the channel structures. A common source line extends along the surface of the substrate on other ones of the channel hole recess regions in a word line recess region, which separates adjacent memory cell stacks. Related fabrication methods are also discussed.
    Type: Grant
    Filed: March 15, 2021
    Date of Patent: February 28, 2023
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventor: Chang-hyun Lee