Patents by Inventor Jong-Sik Lee

Jong-Sik 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).

  • Publication number: 20210142962
    Abstract: An example portable electronic device includes a front glass cover; a rear cover; a bezel surrounding a space defined by the front cover and the rear cover, the bezel including a portion including an opening; a display device built in the space; and a plate including a plane parallel to the front cover within the space. The example electronic device includes a key movably inserted in the opening; a support structure mounted on the plate or a portion of the bezel and including a hole through which the key passes; a dome button mounted on the support structure and arranged to face the first surface of the key and the hole so that the key can be pressed; and a waterproof structure including a flexible material.
    Type: Application
    Filed: January 19, 2021
    Publication date: May 13, 2021
    Inventors: Jong-Min CHOI, Hyuk-Jae JANG, Woong-Chan KIM, Jung-Tae KIM, Dae-Hyeong PARK, Sang-Hyun YI, Jae-Ryang LEE, Jeong-Goo JEON, Sung-Gun CHO, Sung-Joo CHO, Young-Sik CHOI, Soon-Woong YANG, Min-Sung LEE
  • Patent number: 10994206
    Abstract: An apparatus for controlling an object may include a communicator configured to communicate with a first user terminal and a second user terminal, and a processor configured to control a first object corresponding to a first user in a virtual world to be displayed, configured to control the first object to move in the virtual world in response to a movement control of the first user, configured to randomly select at least one candidate object in response to a morphing control of the first user, and configured to change the first object to a second object when the first user selects the second object from the at least one candidate object. Methods for controlling an object are also provided.
    Type: Grant
    Filed: April 19, 2019
    Date of Patent: May 4, 2021
    Assignee: NEXON KOREA CORPORATION
    Inventors: Jung Kyu Ye, Geon Yeong Kim, Chang Hoon Yi, Joo Seok Lee, Guhyun Park, Young Suk Kim, Jae Hyun Park, June Sik Yi, Hun Joon Ha, Nak Hyun Kim, Ho Sik Kim, Jeong Min Seo, Tae Hoon Koo, Duc Chun Kim, Seoung Hwi Jung, Byung Eun Jin, Jin Woo Lee, Seok Hyun Kim, Ju Yong Lim, Hyun Ju Cho, Sang Yeop Lee, Min Kwan Chae, Sang Ho Kim, Hee Seok Kang, Seongkwan Lee, Jeong Pyo Hong, Choong Yeol Lee, Yong Woo Park, Kyoung Su Lee, Yu Ju Kim, Dong Gook Lee, Hyun Jin Kim, Hyun Jeong Lee, Dong Young Chang, Jong Min Lee, Jin Woo Lee, Song I Han, Taek Ki Lee, Eun Ji Nam, Choon Hwa Lee, Young Min Kang, Jung Soo Lee
  • Patent number: 10998813
    Abstract: A modular multilevel converter (MMC) includes multiple converter arms, each converter arm having: N submodules connected to each other in series, N being an integer equal to or greater than 2; and a circuit opening unit connected to the N submodules in series to open a circuit of the converter arm, wherein the N submodules has n submodules including full-bridge circuits and N?n submodules including half-bridge circuits, n being less than N.
    Type: Grant
    Filed: June 23, 2016
    Date of Patent: May 4, 2021
    Assignees: HYOSUNG HEAVY INDUSTRIES CORPORATION
    Inventors: Hee Jin Kim, Dong Su Lee, Kyeon Hur, Jae Sik Kang, Sang Min Kim, Jong Seo Na
  • Publication number: 20210123843
    Abstract: A method for preparing a SiC ingot includes: disposing a raw material and a SiC seed crystal facing each other in a reactor having an internal space; subliming the raw material by controlling a temperature, a pressure, and an atmosphere of the internal space; growing the SiC ingot on the seed crystal; and collecting the SiC ingot after cooling the reactor. The wafer prepared from the ingot, which is prepared from the method, generates cracks when an impact is applied to a surface of the wafer, the impact is applied by an external impact source having mechanical energy, and a minimum value of the mechanical energy is 0.194 J to 0.475 J per unit area (cm2).
    Type: Application
    Filed: June 29, 2020
    Publication date: April 29, 2021
    Applicant: SKC Co., Ltd.
    Inventors: Jong Hwi PARK, Jongmin SHIM, Eun Su YANG, Yeon Sik LEE, Byung Kyu JANG, Jung Woo CHOI, Sang Ki KO, Kap-Ryeol KU, Jung-Gyu KIM
  • Publication number: 20210118391
    Abstract: A power management circuit of a display device includes a voltage information storage comprising a first and second bank storing first and second voltage information corresponding to first and second voltage levels different from each other, a bank select pin receiving a bank select signal, a voltage information selecting circuit selectively outputting the first voltage information stored in the first bank or the second voltage information stored in the second bank in response to the bank select signal received through the bank select pin, and a DC-DC converter generating panel driving voltages having the first voltage levels based on the first voltage information when the first voltage information is output from the voltage information selecting circuit, and generating the panel driving voltages having the second voltage levels based on the second voltage information when the second voltage information is output from the voltage information selecting circuit.
    Type: Application
    Filed: April 23, 2020
    Publication date: April 22, 2021
    Inventors: Gwangsoo AHN, Dae-Sik LEE, Jong Jae LEE
  • Patent number: 10932362
    Abstract: A circuit board according to an embodiment of the present invention comprises: a first metal layer; an insulating layer disposed on the first metal layer and comprising boron nitride agglomerate particles coated with a resin; and a second metal layer disposed on the insulating layer, wherein: one of both surfaces of the first metal layer, on which the insulating layer is disposed, is in at least partial contact with one surface of the insulating layer; one of both surfaces of the second metal layer, on which the insulating layer is disposed, is in at least partial contact with the other surface of the insulating layer; a plurality of grooves are formed on a surface which is one of both surfaces of at least one of the first metal layer and the second metal layer and which has the insulating layer disposed thereon; at least some of the particles are arranged in at least some of the plurality of grooves; the width (W) of at least one of the plurality of grooves is 1 to 1.
    Type: Grant
    Filed: September 18, 2018
    Date of Patent: February 23, 2021
    Assignee: LG INNOTEK CO., LTD.
    Inventors: Jong Sik Lee, Jin A Gu, Soo Jung Yoon, Gyung Seok Lee, Hyun Gu Im
  • Patent number: 10924176
    Abstract: Provided are a next generation in-building relay system and method. The system includes: a 5G signal providing unit configured to down-convert a millimeter wave radio frequency signal to an intermediate frequency signal; a 5G master hub unit configured to convert the intermediate frequency signal into a radio over fiber (RoF) signal and transmit the RoF signal; an optical coupling unit configured to couple a digital optical signal output from a master hub unit and the analog optical signal output from the 5G master hub unit and transmit the coupled signal to an optical cable; and an optical distribution unit configured to separate the digital optical signal and the analog optical signal from the coupled signal, transmit the digital optical signal to a remote optical relay unit, and transmit the analog optical signal to distributed remote units.
    Type: Grant
    Filed: July 12, 2017
    Date of Patent: February 16, 2021
    Assignee: KT CORPORATION
    Inventors: Sung-Yeop Pyun, Jong-Sik Lee, Won-Yeol Lee
  • Publication number: 20200315004
    Abstract: A circuit board according to an embodiment of the present invention comprises: a first metal layer; an insulating layer disposed on the first metal layer and comprising boron nitride agglomerate particles coated with a resin; and a second metal layer disposed on the insulating layer, wherein: one of both surfaces of the first metal layer, on which the insulating layer is disposed, is in at least partial contact with one surface of the insulating layer; one of both surfaces of the second metal layer, on which the insulating layer is disposed, is in at least partial contact with the other surface of the insulating layer; a plurality of grooves are formed on a surface which is one of both surfaces of at least one of the first metal layer and the second metal layer and which has the insulating layer disposed thereon; at least some of the particles are arranged in at least some of the plurality of grooves; the width (W) of at least one of the plurality of grooves is 1 to 1.
    Type: Application
    Filed: September 18, 2018
    Publication date: October 1, 2020
    Inventors: Jong Sik LEE, Jin A GU, Soo Jung YOON, Gyung Seok LEE, Hyun Gu IM
  • Patent number: 10763950
    Abstract: Provided are a 5G in-building relay system and a 5G in-building relay method for sharing an RF cable to provide a 5G communication service in the building. The 5G in-building relay system includes: a 5G signal providing device for converting RF signals of a 5G into IF signals and providing the IF signals through a pre-built RF cable of the building; an MHU for receiving and transmitting the IF signals; a coupling device for combining the IF signals with radio signals other than the 5G received from an ROU pre-built in the building and providing the combined signals through the RF cable; a distribution device for receiving the combined signals and separating and distributing the IF signals of the 5G from the combined signals; and a DRU for converting the distributed IF signals into millimeter-wave RF signals and wirelessly transmitting the RF signals to a 5G terminal.
    Type: Grant
    Filed: July 7, 2017
    Date of Patent: September 1, 2020
    Assignee: KT CORPORATION
    Inventors: Sung-Yeop Pyun, Jong-Sik Lee, Won-Yeol Lee
  • Publication number: 20190379443
    Abstract: Provided are a next generation in-building relay system and method. The system includes: a 5G signal providing unit configured to down-convert a millimeter wave radio frequency signal to an intermediate frequency signal; a 5G master hub unit configured to convert the intermediate frequency signal into a radio over fiber (RoF) signal and transmit the RoF signal; an optical coupling unit configured to couple a digital optical signal output from a master hub unit and the analog optical signal output from the 5G master hub unit and transmit the coupled signal to an optical cable; and an optical distribution unit configured to separate the digital optical signal and the analog optical signal from the coupled signal, transmit the digital optical signal to a remote optical relay unit, and transmit the analog optical signal to distributed remote units.
    Type: Application
    Filed: July 12, 2017
    Publication date: December 12, 2019
    Applicant: KT CORPORATION
    Inventors: Sung-Yeop PYUN, Jong-Sik LEE, Won-Yeol LEE
  • Publication number: 20190253129
    Abstract: Provided are a 5G in-building relay system and a 5G in-building relay method for sharing an RF cable to provide a 5G communication service in the building. The 5G in-building relay system includes: a 5G signal providing device for converting RF signals of a 5G into IF signals and providing the IF signals through a pre-built RF cable of the building; an MHU for receiving and transmitting the IF signals; a coupling device for combining the IF signals with radio signals other than the 5G received from an ROU pre-built in the building and providing the combined signals through the RF cable; a distribution device for receiving the combined signals and separating and distributing the IF signals of the 5G from the combined signals; and a DRU for converting the distributed IF signals into millimeter-wave RF signals and wirelessly transmitting the RF signals to a 5G terminal.
    Type: Application
    Filed: July 7, 2017
    Publication date: August 15, 2019
    Applicant: KT CORPORATION
    Inventors: Sung-Yeop PYUN, Jong-Sik LEE, Won-Yeol LEE
  • Patent number: 10312060
    Abstract: Provided are a plasma generating apparatus using mutual inductive coupling and a substrate treating apparatus including the same. According to an embodiment of the present invention, a plasma generating apparatus includes: an RF power supply providing an RF signal; a plurality of electromagnetic field applying units inducing an electromagnetic field by receiving the RF signal; and a reactance element connected to a ground terminal of the electromagnetic field applying unit, wherein each of the electromagnetic field applying units may include a plurality of mutually-inductively coupled coils.
    Type: Grant
    Filed: October 17, 2014
    Date of Patent: June 4, 2019
    Assignee: PSK INC.
    Inventors: Hee Sun Chae, Jeong Hee Cho, Jong Sik Lee, Han Saem Rhee, Hyun Jun Kim
  • Patent number: 9998953
    Abstract: The disclosure is related to adaptive load management in a femtocell network. A load state of a femtocell base station may be determined as one of a low load state, a middle load state, and a high load state. According to the determined load state, a reserved service capacity and an available service capacity of the femtocell base station may be adaptive controlled. Furthermore, at least one handover trigger condition associated with the femtocell base station may be controlled according to the determined load state of the femtocell base station.
    Type: Grant
    Filed: June 17, 2013
    Date of Patent: June 12, 2018
    Assignee: KT CORPORATION
    Inventors: Hyung-Jung Kim, Do-Young Kwak, Jong-Sik Lee
  • Patent number: 9924433
    Abstract: A hub apparatus may be provided for distributing a load of a small cell digital unit to a macro cell digital unit in a heterogeneous network.
    Type: Grant
    Filed: July 26, 2013
    Date of Patent: March 20, 2018
    Assignee: KT CORPORATION
    Inventors: Hyung-Jung Kim, Jong-Sik Lee, Sung-Yeop Pyun
  • Patent number: 9648614
    Abstract: A wired/wireless convergence apparatus may be provided for integrally transmitting wired network traffic and wireless network traffic in an in-building cloud network composed of a plurality of digital units and a plurality of radio units includes. The wired/wireless convergence apparatus may include a traffic monitoring unit and a wired/wireless traffic control unit. The traffic monitoring unit may be configured to monitor wireless network traffic and wired network traffic input to the in-building cloud network. The wired/wireless traffic control unit may be configured to allocate wireless network traffic resources to optical fibers on the basis of monitored information of the traffic monitoring unit and to allocate wired network traffic to idle resources remaining after allocation of the wireless network traffic.
    Type: Grant
    Filed: July 26, 2013
    Date of Patent: May 9, 2017
    Assignee: KT CORPORATION
    Inventors: Sung-Yeop Pyun, Hyung-Jung Kim, Do-Young Kwak, Jong-Sik Lee
  • Patent number: 9536708
    Abstract: Provided is a plasma generating device. The plasma generating device includes: an RF power supply providing an RF signal; a plasma chamber providing a space where gas is injected to generate plasma; a first electromagnetic inducer installed at one portion of the plasma chamber and inducing an electromagnetic field in the plasma chamber as the RF signal is applied; a second electromagnetic inducer installed at another portion of the plasma chamber and inducing an electromagnetic field in the plasma chamber as the RF signal is applied; a first load connected to the first electromagnetic inducer; a second load connected to the second electromagnetic inducer; and a controller controlling a power supplied to the first electromagnetic inducer and the second electromagnetic inducer by adjusting at least one impedance of the first load and the second load.
    Type: Grant
    Filed: March 27, 2014
    Date of Patent: January 3, 2017
    Assignee: PSK Inc.
    Inventors: Hee Sun Chae, Jeong Hee Cho, Jong Sik Lee, Han Saem Rhee, Hyun Jun Kim
  • Patent number: 9473830
    Abstract: A smart metering system using a white space band includes a band search sensor installed in a predefined area which scans a digital public broadcast channel band; a band management server which manages area specific broadcast channel status information based on a scanning result obtained by the band search sensor and which searches a white space band that is an idle channel band of a corresponding area based on the broadcast channel status information to allocate the white space band as a smart metering data transmission channel; and a base station which allocates the smart metering data transmission channel from the band management server and which forms a wireless communication channel between a smart meter and a grid central server via the allocated smart metering data transmission channel.
    Type: Grant
    Filed: November 1, 2012
    Date of Patent: October 18, 2016
    Assignee: KT Corporation
    Inventors: Si-Young Heo, Dae-Hyun Cha, Hyun-Pyo Kim, Jong-Sik Lee
  • Patent number: 9462689
    Abstract: An epoxy resin composition according to an embodiment of the present invention includes an epoxy compound, a curing agent including diaminodiphenyl sulfone, and an inorganic filler.
    Type: Grant
    Filed: November 22, 2013
    Date of Patent: October 4, 2016
    Assignee: LG INNOTEK CO., LTD.
    Inventors: Geon Young Kil, Myeong Jeong Kim, Jae Man Park, Jong Heum Yoon, Jeung Ook Park, Sung Jin Yun, Jong Sik Lee, Sang A. Ju, Yeo Eun Yoon
  • Patent number: 9282637
    Abstract: There is provided an epoxy resin compound including an epoxy resin including a crystalline epoxy, a curing agent, and an inorganic filler. Also, there is provided a radiant heat circuit board including a metal plate, an insulating layer formed on the metal plate; and a circuit pattern formed on the insulating layer, in which the insulting layer is formed by curing an epoxy resin compound including an epoxy resin including a crystalline epoxy, a curing agent, and an inorganic filler.
    Type: Grant
    Filed: August 16, 2013
    Date of Patent: March 8, 2016
    Assignee: LG INNOTEK CO., LTD.
    Inventors: Sung Jin Yun, Hyuk Soo Lee, In Hee Cho, Jae Man Park, Myeong Jeong Kim, Jong Heum Yoon, Jeung Ook Park, Jong Sik Lee, Gun Young Gil, Thanh Kieu Giang, Jin Hwan Kim
  • Publication number: 20160020073
    Abstract: Provided are a plasma generation device, a method of controlling a characteristic of plasma, and a substrate processing device using the same. The plasma generation device includes a first radio frequency (RF) power supply supplying a first RF signal; a chamber supplying a space in which plasma is generated; a plasma source installed at the chamber, wherein the plasma source receives the first RF signal and generates plasma; a second RF power supply supplying a second RF signal; a direct current (DC) bias power supply supplying a DC bias signal; and an electrode arranged in the chamber, wherein the electrode receives an overlap signal obtained by overlapping the second RF signal and the DC bias signal and controls a characteristic of the plasma.
    Type: Application
    Filed: August 12, 2014
    Publication date: January 21, 2016
    Inventors: Hee Sun CHAE, Jeong Hee CHO, Jong Sik LEE, Han Saem LEE, Hyun Jun KIM