Patents by Inventor Dong Hyeok AN

Dong Hyeok AN 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: 20170225145
    Abstract: Provided are a composition and a manufacturing method of a solid CO2 sorbent having excellent physical properties and chemical reaction characteristics, particularly having an excellent mid-temperature range activity for a fluidized bed process, for use in collecting a CO2 source (pre-combustion or pre-utilization) in syngas application fields such as integrated coal gasification combined cycle (IGCC) power systems, synthetic natural gas (SNG) and synthetic liquid fuel (CTL).
    Type: Application
    Filed: June 30, 2015
    Publication date: August 10, 2017
    Inventors: Joong Beom Lee, Dong Hyeok Choi, Tae Hyoung Eom, Jeom In Baek, Seong JeGarl
  • Publication number: 20170206132
    Abstract: The present invention relates to a hybrid storage system combining a cloud storage system and a P2P storage system. The hybrid storage system comprises: a node management unit for measuring bandwidths for a cloud storage system server and a P2P storage peer; a variable control unit for calculating a packet distribution vector for determining the unit of data to be dispersed in the sever and the peer and a fountain coding rate for determining encoding for data to be stored in the server and the peer; an encoding unit for fountain-encoding data to be stored in the server and the peer, according to the foundation coding rate; and a scheduler for calculating a transmission time which is the time required for data transmission to the server and the peer on the basis of the measured bandwidths and the packet distribution vector, and transmitting information on the transmission time to the variable control unit.
    Type: Application
    Filed: February 4, 2015
    Publication date: July 20, 2017
    Inventors: Hwang Jun SONG, Yun Min GO, Dong Hyeok HO, Gi Seok PARK
  • Publication number: 20170200549
    Abstract: Disclosed herein are a metal-polymer complex film for an inductor and a method for manufacturing an inductor, the inductor being manufactured by using the metal-polymer complex film for an inductor, including: a metal powder; and an amorphous epoxy resin, wherein the metal-polymer complex film is made in a film type by using a mixture where a weight ratio of the metal powder is 75˜98 wt %, so that a plurality of inductors can be simultaneously manufactured to thereby improve production efficiency and characteristic values of the inductor can be also improved.
    Type: Application
    Filed: March 27, 2017
    Publication date: July 13, 2017
    Inventors: Moon Soo PARK, Ic Seob KIM, Hwan Soo LEE, Dong Hyeok CHOI, Hye Yeon CHA
  • Publication number: 20160295586
    Abstract: A wireless local area network (WLAN) communication method and apparatus using multiple transmission speed partitioning and cooperative transmission are disclosed. The WLAN communication method includes transmitting, by access point to the nodes, transmission time slots, partitions and internal transmission priorities using transmission time slot information, partition information and internal transmission priority information, receiving uplink packet from one node, determining whether downlink data to be transmitted to the high speed or the low speed node is present, or not in the download queue, transmitting, if present, the downlink packet to the nodes, removing downlink data from the download queue for ACK, and transmitting, if not present, transmitting ACK to the nodes.
    Type: Application
    Filed: June 13, 2016
    Publication date: October 6, 2016
    Applicant: RESEARCH & BUSINESS FOUNDATION SUNGKYUNKWAN UNIVERSITY
    Inventors: Dong Hyeok AN, Yu Sung KIM, Ik Jun YEOM
  • Publication number: 20160295585
    Abstract: A wireless local area network (WLAN) communication method and apparatus using multiple transmission speed partitioning and cooperative transmission are disclosed. The WLAN communication method includes transmitting, by access point to the nodes, transmission time slots, partitions and internal transmission priorities using transmission time slot information, partition information and internal transmission priority information, receiving uplink packet from one node, determining whether downlink data to be transmitted to the high speed or the low speed node is present, or not in the download queue, transmitting, if present, the downlink packet to the nodes, removing downlink data from the download queue for ACK, and transmitting, if not present, transmitting ACK to the nodes.
    Type: Application
    Filed: June 13, 2016
    Publication date: October 6, 2016
    Applicant: RESEARCH & BUSINESS FOUNDATION SUNGKYUNKWAN UNIVERSITY
    Inventors: Dong Hyeok AN, Yu Sung KIM, Ik Jun YEOM
  • Publication number: 20160226985
    Abstract: A terminal, a cloud apparatus, a method of analyzing, by a terminal, activities of a user, and a method of analyzing, by a cloud apparatus, activities of a user. The terminal includes a communication interface that communicates with an external apparatus over a network; a controller that obtains data used to predict activities of a user and anonymize a portion of the obtained data, and transmit the anonymized data and a remaining portion of the data, which is not anonymized, to the external apparatus through the communication interface; and a display that displays notification information related to the activities of the user based on activity prediction data received from the external apparatus, the activity prediction data being generated based on an analysis of the transmitted data.
    Type: Application
    Filed: May 15, 2015
    Publication date: August 4, 2016
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Young YOON, Dae-hyun BAN, Sung-won HAN, Hong-uk WOO, Eun-ho HEO, Sang-ho SHIN, Jung-kyuen LEE, Dong-hyeok AN
  • Patent number: 9391363
    Abstract: There are provided a multilayer ferrite sheet capable of performing communications in a wideband frequency, an antenna device using the same, and a manufacturing method thereof. The multilayer ferrite sheet includes: a Y-type hexaferrite layer; and a Z-type hexaferrite layer, wherein the Y-type hexaferrite and the Z-type hexaferrite are alternately laminated.
    Type: Grant
    Filed: March 7, 2013
    Date of Patent: July 12, 2016
    Assignee: SAMSUNG ELECTRO-MECHANICS CO., LTD.
    Inventors: Dong Hyeok Choi, Jin Young Kim, Sung Yong An, Ji Man Ryu
  • Patent number: 9385345
    Abstract: Disclosed herein are an organic light emitting display device includes first to third sub-pixels realizing different colors, wherein each of the first to third sub-pixels includes first and second electrodes disposed on a substrate so as to face each other, an emission layer formed between the first and second electrodes, a multi-layered hole transporting layer formed between the first electrode and the emission layer to be in contact with the first electrode and the emission layer, and an electron transporting layer formed between the second electrode and the emission layer, wherein multi-layered hole transporting layer of at least one of the first to third sub-pixels includes an at least two-layered first hole transporting layer formed of a hole host and a p-type dopant having a doping concentration of 1 to 10% and a second hole transporting layer formed of the hole host.
    Type: Grant
    Filed: December 19, 2013
    Date of Patent: July 5, 2016
    Assignee: LG DISPLAY CO., LTD.
    Inventors: Heui-Dong Lee, Kwan-Soo Kim, Dae-Gwon Song, Jin-Ho Park, Sung-Ji Yoon, Dong-Hyeok Lim
  • Patent number: 9319722
    Abstract: The method of providing a mobile IPTV service, performed in a terminal that receives streams of all channels belonging to a channel group of a currently viewed channel, includes, when a channel is selected, determining whether the selected channel and the currently viewed channel belong to the same channel group, and when the selected channel and the currently viewed channel are determined to belong to the same channel group, decoding, by the terminal, an IPTV channel stream of the selected channel within a currently received channel. Therefore, since the channel group is generated based on channel selection preference, and a multicast stream including a channel stream of the channel group is broadcast, it is possible to decrease average processing complexity and to guarantee rapid channel change when a user changes the channel to another channel in the same channel group.
    Type: Grant
    Filed: September 10, 2012
    Date of Patent: April 19, 2016
    Assignees: POSTECH ACADEMY-INDUSTRY FOUNDATION, SNU R&DB FOUNDATION
    Inventors: Hwang Jun Song, Dong Hyeok Ho, Hyun Chul Joo, Hyung Rai Oh, Wan Kim, Oh Chan Kwon
  • Publication number: 20160085536
    Abstract: Provided are a system and method for providing a service through an application. A device that receives a service from a service providing server using an application includes a communicator configured to communicate with the service providing server and an application providing server, and a controller configured to control the communicator to request the application providing server to transmit the application and a browser user interface (UI) of the application, receive the browser UI from the application providing server, receive user data which is input in association with the service while the service is provided through the browser UI, receive the application from the application providing server and execute the received application while receiving the service through the browser UI, and retrieve the user data through the application to continuously receive the service.
    Type: Application
    Filed: September 18, 2015
    Publication date: March 24, 2016
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Dong-hyeok AN, Kil-su EO
  • Patent number: 9153763
    Abstract: Disclosed herein is a thermoelectric material having a plate type layered structure where each layer has a thickness of 30 nm or less, a method for preparing the same, and a thermoelectric module using the same. According to the present invention, as for a thermoelectric material having a nanometer-sized layered structure, crystallinity of each layer is excellent, electric conductivity of electron is improved, and phonon diffraction is induced at a grain interface between layers, and thus, a thermoelectric module having excellent thermoelectric properties can be provided.
    Type: Grant
    Filed: April 18, 2012
    Date of Patent: October 6, 2015
    Assignee: SAMSUNG ELECTRO-MECHANICS CO., LTD.
    Inventors: Dong Hyeok Choi, Sung Ho Lee, Ju Hwan Yang, Kang Heon Hur
  • Patent number: 9088068
    Abstract: There is provided a magnetic composite sheet including: a magnetic layer including first and second magnetic pieces having different sizes; and a cover film formed on one surface or both surfaces of the magnetic layer, wherein, in a cross-section of the magnetic composite sheet taken in a direction parallel to a direction in which the magnetic layer and the cover film are laminated, when a length of the first magnetic piece in a vertical direction is a and a length thereof in a horizontal direction is b, and a length of the second magnetic piece in the vertical direction is a? and a length thereof in the horizontal direction is b?, b/a is greater than b?/a?(b/a>b?/a?).
    Type: Grant
    Filed: May 7, 2013
    Date of Patent: July 21, 2015
    Assignee: SAMSUNG ELECTRO-MECHANICS CO., LTD.
    Inventors: Dong Hyeok Choi, Jin Young Kim, Chang Ryul Jung, Ji Man Ryu, Sung Yong An
  • Patent number: 9035319
    Abstract: The present disclosure relates to nitride semiconductor and a fabricating method thereof, and a nitride semiconductor according to an exemplary embodiment of the present disclosure includes a nitride based first and second electrode placed with a distance on a substrate, a nitride based channel layer which connects the first and second electrode, an insulating layer which covers the channel layer, and a third electrode which is formed to cover the insulating layer on the insulating layer.
    Type: Grant
    Filed: August 15, 2013
    Date of Patent: May 19, 2015
    Assignee: KYUNGPOOK NATIONAL UNIVERSITY INDUSTRY-ACADEMIC COOPERATION FOUNDATION
    Inventors: Jung-hee Lee, Ki-sik Im, Dong-seok Kim, Hee-sung Kang, Dong-hyeok Son
  • Publication number: 20150102892
    Abstract: The present invention relates to a magnetic sheet, a wireless charging sheet, and a method for manufacturing a magnetic sheet. According to an embodiment of the present invention, a magnetic sheet used in a wireless charging sheet, which includes a metal sheet layer consisting of a plurality of divided segments; and an insulating material filled in a dividing space between the segments and forms a magnetic path of a magnetic field generated around a coil, is provided. Further, a wireless charging sheet and a method for manufacturing a magnetic sheet are provided.
    Type: Application
    Filed: October 10, 2014
    Publication date: April 16, 2015
    Inventors: Jeong Gu YEO, Kang Ryong CHOI, Dong Hyeok CHOI, Sung Yong AN, Chang Ryul JUNG, Ji Man RYU
  • Publication number: 20150078351
    Abstract: A wireless local area network (WLAN) communication method and apparatus using multiple transmission speed partitioning and cooperative transmission are disclosed. The WLAN communication method includes transmitting, by access point to the nodes, transmission time slots, partitions and internal transmission priorities using transmission time slot information, partition information and internal transmission priority information, receiving uplink packet from one node, determining whether downlink data to be transmitted to the high speed or the low speed node is present, or not in the download queue, transmitting, if present, the downlink packet to the nodes, removing downlink data from the download queue for ACK, and transmitting, if not present, transmitting ACK to the nodes.
    Type: Application
    Filed: August 1, 2014
    Publication date: March 19, 2015
    Applicant: RESEARCH & BUSINESS FOUNDATION SUNGKYUNKWAN UNIVERSITY
    Inventors: Dong Hyeok AN, Yu Sung KIM, Ik Jun YEOM
  • Patent number: 8976311
    Abstract: A backlight unit adapted to implement enhanced light efficiency and uniform brightness is disclosed. The backlight unit includes a plurality of light sources arranged at fixed intervals, a diffusion plate disposed on the plurality of light sources, prism patterns formed on one surface of the diffusion plate, and micro-lens patterns formed on the other surface of the diffusion plate. The vertex angle of each prism pattern is in a range of about 64°˜76°.
    Type: Grant
    Filed: December 16, 2009
    Date of Patent: March 10, 2015
    Assignee: LG Display Co. Ltd.
    Inventors: Min Joo Kim, Dong Hyeok Kim, Jin Ryun Kim
  • Publication number: 20140322065
    Abstract: There is provided a soft magnetic core, including: a soft magnetic metal powder; a ferriferous oxide (Fe3O4) layer formed on a surface of the soft magnetic metal powder; and an insulating layer formed on the ferriferous oxide (Fe3O4) layer.
    Type: Application
    Filed: July 3, 2013
    Publication date: October 30, 2014
    Inventors: Hak Kwan KIM, Sung Yong AN, No Il PARK, Dong Hyeok CHOI
  • Publication number: 20140313635
    Abstract: Embodiments of the invention provide a hybrid capacitor that includes a cathode, an anode, a separator and an electrolyte solution. The hybrid capacitor includes a first structure including a cathode containing activated carbon and an anode containing lithium, and a second structure including activated carbon layers formed on both surfaces of a current collector.
    Type: Application
    Filed: July 1, 2014
    Publication date: October 23, 2014
    Applicant: SAMSUNG ELECTRO-MECHANICS CO., LTD.
    Inventors: Hak Kwan KIM, Dong Hyeok CHOI, Bae Kyun KIM, Jun Hee BAE
  • Publication number: 20140265716
    Abstract: There is provided a soft magnetic core including: soft magnetic powder particles having an insulating coating layer formed on surfaces thereof and metal powder particles positioned between the soft magnetic powder particles.
    Type: Application
    Filed: May 17, 2013
    Publication date: September 18, 2014
    Applicant: SAMSUNG ELECTRO-MECHANICS CO., LTD.
    Inventors: Hak Kwan KIM, Sung Yong AN, No Il PARK, Dong Hyeok CHOI
  • Publication number: 20140221193
    Abstract: The present invention relates to an aqueous gas-converting catalyst composition comprising: an active component; a support; an inorganic binder; at least one accelerator selected from the group consisting of cobalt oxide, molybdenum oxide, nickel oxide, calcium oxide, barium oxide, strontium oxide, magnesium oxide, zirconium oxide, manganese oxide and barium titania; and at least one stabilizer selected from the group consisting of magnesium oxide, zirconium oxide, stabilized zirconia, and hydrotalcite. The catalyst according to the present invention can effectively capture and separate carbon dioxide due to the excellent physical properties thereof such as packing density and abrasion resistance, and high CO conversion. Also, according to the present invention, mass production is facilitated by applying a spraying technique, and overall costs are lowered because of high yield.
    Type: Application
    Filed: June 11, 2012
    Publication date: August 7, 2014
    Applicant: KOREA ELECTRIC POWER CORPORATION
    Inventors: Joong Beom Lee, Chong Kul Ryu, Tae Hyoung Eom, Dong Hyeok Choi, Jeom In Baek, Seong Jeagarl, Seok Ran Yang