Patents by Inventor Chang Hyun Lim

Chang Hyun Lim 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: 10935863
    Abstract: The present application relates to an electrochromic device, and according to one aspect of the present invention, there is provided an electrochromic device comprising a first electrode layer, a first electrochromic layer provided on the first electrode layer, an electrolyte layer provided on the first electrochromic layer, a second electrochromic layer provided on the electrolyte layer and a second electrode layer provided on the second electrochromic layer, wherein the electrochromic device comprises a first auxiliary electrode layer and a second auxiliary electrode layer each provided on each opposite surface of the first electrochromic layer and the second electrochromic layer opposed to each other with the electrolyte layer interposed therebetween.
    Type: Grant
    Filed: June 12, 2017
    Date of Patent: March 2, 2021
    Assignee: LG CHEM, LTD.
    Inventors: Dong Hyun Lee, Chang Yoon Lim, Jae Sung Han, Su Hee Lee, Doo Hoon Song
  • Patent number: 10903814
    Abstract: A bulk acoustic wave resonator includes a membrane layer, together with a substrate, forming a cavity, a lower electrode disposed on the membrane layer, a piezoelectric layer disposed on a flat surface of the lower electrode and an upper electrode covering a portion of the piezoelectric layer. An overall region at a side of the piezoelectric layer is exposed to the air. The side of the piezoelectric layer has a gradient of 65° to 90° with respect to a top surface of the lower electrode.
    Type: Grant
    Filed: October 20, 2017
    Date of Patent: January 26, 2021
    Assignee: Samsung Electro-Mechanics Co., Ltd.
    Inventors: Won Han, Chang Hyun Lim, Yong Suk Kim, Seung Hun Han, Sung Jun Lee, Sang Kee Yoon, Tae Yoon Kim
  • Patent number: 10892737
    Abstract: A bulk-acoustic wave resonator includes a substrate; a membrane layer forming a cavity with the substrate; a first electrode at least partially disposed on an upper portion of the cavity including an end portion that is thicker than other portions of the first electrode; an insertion layer including a first portion disposed adjacent to from the end portion of the first electrode and a second portion disposed on an upper portion of the first electrode; a piezoelectric layer disposed to cover the insertion layer; and a second electrode disposed on an upper portion of the piezoelectric layer.
    Type: Grant
    Filed: April 19, 2019
    Date of Patent: January 12, 2021
    Assignee: Samsung Electro-Mechanics Co., Ltd.
    Inventors: Won Han, Tae Yoon Kim, Sang Uk Son, Chang Hyun Lim
  • Patent number: 10871696
    Abstract: The present invention relates to an electrochromic device, and according to one aspect of the present invention, there is provided an electrochromic device comprising: a first electrode layer; a first electrochromic layer provided on the first electrode layer; an electrolyte layer provided on the first electrochromic layer; a second electrochromic layer provided on the electrolyte layer; and a second electrode layer provided on the second electrochromic layer, wherein it comprises a first auxiliary electrode layer and a second auxiliary electrode layer each provided on each opposite surface of the first electrochromic layer and the second electrochromic layer opposed to each other with the electrolyte layer interposed therebetween.
    Type: Grant
    Filed: May 8, 2017
    Date of Patent: December 22, 2020
    Assignee: LG CHEM, LTD.
    Inventors: Dong Hyun Lee, Chang Yoon Lim, Su Hee Lee, Doo Hoon Song, Jae Sung Han
  • Patent number: 10873316
    Abstract: An acoustic resonator includes: a central portion; an extension portion extended outwardly of the central portion; a first electrode, a piezoelectric layer, and a second electrode sequentially stacked on a substrate, in the central portion; and an insertion layer disposed below the piezoelectric layer in the extension portion, wherein the piezoelectric layer includes a piezoelectric portion disposed in the central portion, and a bent portion disposed in the extension portion and extended from the piezoelectric portion at an incline depending on a shape of the insertion layer.
    Type: Grant
    Filed: October 30, 2017
    Date of Patent: December 22, 2020
    Assignee: Samsung Electro-Mechanics Co., Ltd.
    Inventors: Tae Kyung Lee, Won Han, Tae Yoon Kim, Jong Woon Kim, Moon Chul Lee, Chang Hyun Lim, Sang Kee Yoon, Hwa Sun Lee, Dae Hun Jeong
  • Patent number: 10858047
    Abstract: Disclosed are a partition panel for vehicles and a method of manufacturing the same. The method includes mounting a first prepreg formed to have a shape corresponding to a molding groove on a lower die provided with the molding groove. The molding groove is inclined upwards from the center of a lower portion of the lower die to opposite ends of the lower die. A second prepreg having a sheet type is mounted on the lower die so as to cover the first prepreg. The first prepreg and the second prepreg are integrally molded by placing an upper die on the lower die.
    Type: Grant
    Filed: January 15, 2019
    Date of Patent: December 8, 2020
    Assignees: Hyundai Motor Company, Kia Motors Corporation, Hanwha Solutions Corporation
    Inventors: Min Soo Kim, Wook Hyun Han, Chang Dong Kim, Jun Hyoung Kim, Jun Young Kim, Sang Sun Park, Joung Myung Lim, Ji Hwan Choi, Hee Young Ko
  • Publication number: 20200378034
    Abstract: Provided is a method of producing a carbon fiber, the method including: a) adding an acrylonitrile-based polymer solution to a solution containing a glycol-based compound having a boiling point of 180 to 210° C. to precipitate an acrylonitrile-based polymer; b) melt spinning the acrylonitrile-based polymer to obtain a spun fiber; and c) performing stabilization and carbonization on the spun fiber to obtain a carbon fiber.
    Type: Application
    Filed: April 10, 2020
    Publication date: December 3, 2020
    Inventors: Chang Hyun CHO, Chang Se WOO, Kap Seung YANG, Chang Ha LIM, Sun Ho CHOE, Hong Min KIM, Kyung Ae OH, Eun Ji KIM
  • Publication number: 20200373899
    Abstract: An acoustic wave resonator includes a resonating part disposed on and spaced apart from a substrate by a cavity, the resonating part including a membrane layer, a first electrode, a piezoelectric layer, and a second electrode that are sequentially stacked. 0 ???Mg?170 ? may be satisfied, ?Mg being a difference between a maximum thickness and a minimum thickness of the membrane layer disposed in the cavity.
    Type: Application
    Filed: August 10, 2020
    Publication date: November 26, 2020
    Applicant: Samsung Electro-Mechanics Co., Ltd.
    Inventors: Tae Kyung LEE, Tae Yoon KIM, Sang Kee YOON, Chang Hyun LIM, Jong Woon KIM, Moon Chul LEE
  • Publication number: 20200373900
    Abstract: An acoustic wave resonator includes a resonating part disposed on and spaced apart from a substrate by a cavity, the resonating part including a membrane layer, a first electrode, a piezoelectric layer, and a second electrode that are sequentially stacked. 0 ???Mg?170 ? may be satisfied, ?Mg being a difference between a maximum thickness and a minimum thickness of the membrane layer disposed in the cavity.
    Type: Application
    Filed: August 13, 2020
    Publication date: November 26, 2020
    Applicant: Samsung Electro-Mechanics Co., Ltd.
    Inventors: Tae Kyung LEE, Tae Yoon KIM, Sang Kee YOON, Chang Hyun LIM, Jong Woon KIM, Moon Chul LEE
  • Publication number: 20200366265
    Abstract: A bulk acoustic resonator includes: a substrate including an upper surface on which a substrate protection layer is disposed; and a membrane layer forming a cavity together with the substrate, wherein a thickness deviation of either one or both of the substrate protection layer and the membrane layer is 170 ? or less.
    Type: Application
    Filed: August 3, 2020
    Publication date: November 19, 2020
    Applicant: Samsung Electro-Mechanics Co., Ltd.
    Inventors: Tae Kyung LEE, Tae Yoon KIM, Dae Ho KIM, Chang Hyun LIM, Tae Hun LEE, Sang Kee YOON, Jong Woon KIM, Won HAN, Moon Chul LEE
  • Patent number: 10833646
    Abstract: A bulk-acoustic wave resonator includes: a membrane layer disposed on a substrate and forming a cavity; a lower electrode disposed on the membrane layer; a piezoelectric layer disposed on the lower electrode; an upper electrode disposed on the piezoelectric layer, and including a frame part disposed at an edge of an active area and having a thickness greater than that of a portion of the upper electrode disposed in a central portion of the active area; and a frequency adjusting layer disposed on the piezoelectric layer and the upper electrode. The frequency adjusting layer is excluded from an inclined surface of the frame part, or a thickness of a portion of the frequency adjusting layer on the inclined surface is less than that of other portions of the frequency adjusting layer. The frequency adjusting layer is disposed on a portion of the piezoelectric layer protruding from the upper electrode.
    Type: Grant
    Filed: September 12, 2017
    Date of Patent: November 10, 2020
    Assignee: Samsung Electro-Mechanics Co., Ltd.
    Inventors: Chang Hyun Lim, Won Han, Moon Chul Lee, Tae Kyung Lee
  • Patent number: 10824707
    Abstract: A method, performed by a device, of providing security content includes receiving a touch and drag input indicating that a user drags a visual representation of a first application displayed on a touch screen of the device to a fingerprint recognition area while the user touches the visual representation of the first application with a finger; performing authentication on a fingerprint of the finger detected on the touch screen using a fingerprint sensor included in the fingerprint recognition area; and when the performing authentication on the fingerprint is successful, displaying the security content associated with the first application on an execution window of the first application.
    Type: Grant
    Filed: February 26, 2019
    Date of Patent: November 3, 2020
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Nam-wook Kang, Do-hyoung Kim, Yong-gook Park, Woo-hyoung Lee, Young-kyu Jin, Byeong-hoon Kwak, Jong-youb Ryu, Chang-hyun Lee, Yong-hyun Lim
  • Publication number: 20200344308
    Abstract: Disclosed is an electronic device. The electronic device of the present invention comprises: a communication unit; a storage unit for storing a uniform resource locator (URL) designated by an external electronic device and information on specific content provided in the designated URL; and a processor which, when a request for a connection to a designated URL is received from an external electronic device through the communication unit, identifies whether specific content can be provided in the designated URL, and in a case where the specific content cannot be provided, obtains information on another URL that provides content related to the specific content by using stored information, and transmits the obtained information on the another URL to the external electronic device through the communication unit.
    Type: Application
    Filed: August 29, 2018
    Publication date: October 29, 2020
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Tae-hoon Lee, Young-hyun Kim, Young-in Park, Han-jin Park, Sung-min Lim, Chang-won Choi
  • Patent number: 10804728
    Abstract: An electronic device includes a battery, a power regulator electrically connected with the battery and including an input terminal and an output terminal, a connector electrically connected with the input terminal, a wireless power transmitting circuit electrically connected with the output terminal, a switch electrically connected between the connector and the wireless power transmitting circuit, and a controller configured to identify an approaching external electronic device or a wireless charging-related request, identify whether power is provided from an external power supply via the connector in response to the identification, in response to identifying that power is not provided from the external power supply, supply power from the battery via the power regulator to the wireless power transmitting circuit, and in response to identifying that power is provided from the external power supply, supply the power provided from the external power supply to the wireless power transmitting circuit via the switc
    Type: Grant
    Filed: November 13, 2018
    Date of Patent: October 13, 2020
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Dong Zo Kim, Se Hyun Cho, Min Cheol Ha, Yong Sang Yun, Kwang Seob Kim, Ji Won Kim, Hye Won Kim, Chang Hak O, Kyung Woo Lim, Byeong Hyun Jang, Kuk Hwan Jung, Hyung Koo Chung
  • Publication number: 20200321607
    Abstract: Disclosed is a method of manufacturing a composite anode material for a lithium secondary battery containing nano-sized silicon and a carbonaceous material through a single process, the method including mixing a carbonaceous material and solid silicon and performing carbothermal shock for rapidly heating the carbonaceous material so that the solid silicon is melted using the heated carbonaceous material and is dispersed and attached in the form of particles to the surface of the carbonaceous material, the size of the silicon particles, which grow on the surface of the carbonaceous material, being adjusted during the carbothermal shock. Accordingly, processing costs can be lower than conventional methods of manufacturing silicon nanoparticles, and manufacturing costs can be further reduced by simultaneously performing formation of the silicon nanoparticles and compounding with the carbonaceous material.
    Type: Application
    Filed: November 18, 2019
    Publication date: October 8, 2020
    Applicant: HPK INC.
    Inventors: Chang Hyun CHO, Chang Se WOO, Kap Seung YANG, Chang Ha LIM, Chung Hyung JOH
  • Patent number: 10784837
    Abstract: A bulk acoustic wave resonator includes a substrate including a first via and a second via, a lower electrode connection member, a lower electrode, a piezoelectric layer, an upper electrode, and an upper electrode connection member spaced apart from the lower electrode connection member. The lower electrode, the piezoelectric layer, and the upper electrode constitute a resonant portion. The lower electrode connection member electrically connects the lower electrode to the first via and supports a first edge portion of the resonant portion. The upper electrode connection member electrically connects the upper electrode to the second via and supports a second edge portion of the resonant portion. Either one or both of the upper electrode connection member and the lower electrode connection member includes a respective extension portion connected to a respective one of the first via and the second via that is disposed below the resonant portion.
    Type: Grant
    Filed: November 16, 2017
    Date of Patent: September 22, 2020
    Assignee: Samsung Electro-Mechanics Co., Ltd.
    Inventors: Tae Hun Lee, Chang Hyun Lim, Tae Yoon Kim, Moon Chul Lee
  • Patent number: 10778179
    Abstract: An acoustic wave resonator includes a resonating part disposed on and spaced apart from a substrate by a cavity, the resonating part including a membrane layer, a first electrode, a piezoelectric layer, and a second electrode that are sequentially stacked. 0 ???Mg?170 ? may be satisfied, ?Mg being a difference between a maximum thickness and a minimum thickness of the membrane layer disposed in the cavity.
    Type: Grant
    Filed: October 19, 2017
    Date of Patent: September 15, 2020
    Assignee: Samsung Electro-Mechanics Co., Ltd.
    Inventors: Tae Kyung Lee, Tae Yoon Kim, Sang Kee Yoon, Chang Hyun Lim, Jong Woon Kim, Moon Chul Lee
  • Publication number: 20200284692
    Abstract: An engine synchronization method may include: detecting teeth numbers of crank teeth installed on a crankshaft based on a pulse signal generated from a crankshaft position sensor; calculating a tooth period between a falling edge and a next falling edge of the pulse signal generated from the crankshaft position sensor and detecting a missing tooth based on the calculated tooth period; determining whether the detected missing tooth is an actual missing tooth based on a tooth number detected at the time of detecting the missing tooth; and performing synchronization control of an engine when it is determined that the detected missing tooth is the actual missing tooth.
    Type: Application
    Filed: November 15, 2019
    Publication date: September 10, 2020
    Applicants: HYUNDAI MOTOR COMPANY, KIA MOTORS CORPORATION
    Inventors: Hyeok-Jun KWON, Chang-Jin OH, Chang-Hyun LIM, Jung-Suk HAN
  • Patent number: 10747373
    Abstract: A touch panel includes a touch electrode configured to receive a sensing input signal, a display panel, the touch electrode being disposed thereon, and a protective layer disposed between the touch electrode and the display panel, the protective layer configured to receive a protective layer driving signal.
    Type: Grant
    Filed: November 9, 2015
    Date of Patent: August 18, 2020
    Assignee: Samsung Display Co., Ltd.
    Inventors: Jae Woo Choi, Chang Sub Jung, Eun Gil Choi, Sang Hyun Lim, A Ra Jo
  • Publication number: 20200257473
    Abstract: A memory system is disclosed, which relates to technology for implementing data communication between memory devices. The memory system includes a plurality of memory devices and a memory controller. The memory devices allow a data packet composed of data and header information to be directly communicated between the memory devices. The memory controller transmits the data packet to a source memory device from among the plurality of memory devices, and receives the data packet from a last memory device from among the plurality of memory devices. Each of the memory devices hashes the header information such that the data is accessed, using a result of the hash, in address regions located at different positions.
    Type: Application
    Filed: April 24, 2020
    Publication date: August 13, 2020
    Inventors: Chang Hyun KIM, Eui Cheol LIM, Young Jung CHOI, Hyung Sik WON, Sun Woong KIM