Patents by Inventor Young-jun Cho

Young-jun Cho 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: 20180277929
    Abstract: An electronic device including an antenna is provided. The electronic device includes a first antenna radiator that resonates in a first band, a second antenna radiator that resonates in second and third bands higher than the first band, a third antenna radiator that resonates in the second and third bands, a communication circuit, a first feeding part electrically connecting the communication circuit and the first antenna radiator, a second feeding part electrically connecting the communication circuit and the second antenna radiator, and a third feeding part electrically connecting the communication circuit and the third antenna radiator. The communication circuit receives a signal in the second band while transmitting and receiving a signal in the second band by using the second antenna radiator and receives a signal in the third band while transmitting and receiving a signal in the third band using the third antenna radiator.
    Type: Application
    Filed: March 22, 2018
    Publication date: September 27, 2018
    Inventors: Jung Hoon SEO, Kyung Gu KIM, Kyung Il SEO, Young Jun CHO
  • Patent number: 10069086
    Abstract: The present invention relates to a plurality of host materials and an organic electroluminescent device comprising the same. By comprising a specific combination of a plurality of host compounds, the organic electroluminescent device according to the present invention provides excellent lifespan characteristics while maintaining high luminous efficiency.
    Type: Grant
    Filed: August 20, 2015
    Date of Patent: September 4, 2018
    Assignee: ROHM AND HAAS ELECTRONIC MATERIALS KOREA LTD.
    Inventors: Bitnari Kim, Nam-Kyun Kim, Hong-Yeop Na, Tae-Jin Lee, Kyung-Hoon Choi, Jae-Hoon Shim, Young-Jun Cho, Hee-Ryong Kang, Young-Mook Lim, Hyun-Ju Kang, Doo-Hyeon Moon, Ji-Song Jun, Hee-Choon Ahn, Young-Kwang Kim, Jin-Ri Hong
  • Publication number: 20180163443
    Abstract: A home appliance in which an opening and closing operation of a door and a turning operation of a handle are connected through five joints, so that the turning operation of the handle can be performed smoothly, and a latch for fixing the door to a body moves to a position parallel to the door when the door is opened, so that a user is prevented from being interfered with the latch while opening the door and using a cavity of the home appliance.
    Type: Application
    Filed: December 8, 2017
    Publication date: June 14, 2018
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Wan Gi PARK, Ji-Hoon Choi, Young Jun Cho, Han Seong Kang, Hwa Gyu Reo, Simon Ireland, Byeong Woo Ahn, Pung Yeun Cho
  • Publication number: 20180156407
    Abstract: According to an embodiment, a light emitting device package includes: a thermally-conductive substrate having at least two mounting regions on which chips are mounted and at least one bending region; a light emitting device module including a light emitting device arranged on one surface of the mounting region; and a driving device module including a driving unit arranged on the other surface opposite to the one surface of the mounting region.
    Type: Application
    Filed: May 27, 2016
    Publication date: June 7, 2018
    Inventors: Kang Suk LEE, Nam Seok OH, Young Jun CHO
  • Publication number: 20180034135
    Abstract: An electronic device is provided. The electronic device includes a housing, a wireless communication circuit, a first antenna radiator electrically connected with a first ground, a second antenna radiator electrically connected with a second ground, a feeding unit that feeds at least one of the first antenna radiator or the second antenna radiator, and a first switch that operates at a first connection state where the feeding unit and the first antenna radiator are electrically connected to each other, at a second connection state where the feeding unit and the second antenna are electrically connected to each other, or at a third connection state where the feeding unit and the first antenna radiator are connected to each other and the feeding unit and the second antenna radiator are electrically connected to each other, based on a first control signal from the wireless communication circuit.
    Type: Application
    Filed: August 1, 2017
    Publication date: February 1, 2018
    Inventors: Yong Soo KWAK, Gyu Sub KIM, Hae Yeon KIM, Se Hyun PARK, Kyung Il SEO, Jung Hoon SEO, Dong Min SHIN, Ui Chul JEONG, Jin Woo JUNG, Young Jun CHO
  • Patent number: 9841949
    Abstract: An apparatus and method that stabilizes an output sequence of a real random number generator by adjusting the input voltage of the random number generator or the comparative voltage of a comparator. The apparatus for stabilizing an output sequence of a real random number generator includes a verification unit for performing a monobit test on random number values sampled by and output from a comparison unit, and calculating an impact value. An adjustment unit adjusts a voltage of any one of a random number generation unit and the comparison unit using resulting values of the monobit test and the impact value output from the verification unit.
    Type: Grant
    Filed: February 5, 2015
    Date of Patent: December 12, 2017
    Assignee: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE
    Inventors: Sun-Chun Park, Hyung-Yul Ryu, Young-Jun Cho
  • Patent number: 9812628
    Abstract: A light emitting device package is disclosed. The light emitting device package includes a package body, a heat radiating member disposed in the package body, a light emitting device disposed on the heat radiating member, a bonding member disposed between the light emitting device and the heat radiating member, and a bonding member fixing layer disposed around the bonding member, wherein the bonding member fixing layer has at least one through region.
    Type: Grant
    Filed: December 29, 2015
    Date of Patent: November 7, 2017
    Assignee: LG INNOTEK CO., LTD
    Inventors: Su Jung Jung, Byung Mok Kim, Young Jun Cho, Seo Yeon Kwon
  • Publication number: 20170279056
    Abstract: The present invention relates to a plurality of host materials and an organic electroluminescent device comprising the same. By comprising a specific combination of a plurality of host compounds, the organic electroluminescent device according to the present invention provides excellent lifespan characteristics while maintaining high luminous efficiency.
    Type: Application
    Filed: August 20, 2015
    Publication date: September 28, 2017
    Inventors: Bitnari Kim, Nam-Kyun Kim, Hong-Yeop Na, Tae-Jin Lee, Kyung-Hoon Choi, Jae-Hoon Shim, Young-Jun Cho, Hee-Ryong Kang, Young-Mook Lim, Hyun-Ju Kang, Doo-Hyeon Moon, Ji-Song Jun, Hee-Choon Ahn, Young-Kwang Kim, Jin-Ri Hong
  • Publication number: 20170222159
    Abstract: The present invention relates to an electron buffering material, and an organic electroluminescent device comprising a first electrode; a second electrode facing the first electrode; a light-emitting layer between the first electrode and the second electrode; and an electron transport zone and an electron buffering layer between the light-emitting layer and the second electrode. The electron buffering material of the present invention can produce an organic electroluminescent device having low driving voltage, excellent luminous efficiency, and long lifespan.
    Type: Application
    Filed: July 29, 2015
    Publication date: August 3, 2017
    Inventors: Jeong-Eun Yang, Su-Hyun Lee, Chi-Sik Kim, Young-Jun Cho, Kyung-Hoon Choi, Sang-Hee Cho
  • Publication number: 20170207398
    Abstract: The present invention relates to an electron transport material comprising a compound of a certain structure, and an organic electroluminescent device comprising the same. The organic electroluminescent device comprising the electron transport material of the present invention has a low driving voltage, high luminous efficiency and good color purity, and thus effectively shows blue emission.
    Type: Application
    Filed: July 16, 2015
    Publication date: July 20, 2017
    Inventors: Jeong-Eun Yang, Su-Hyun Lee, Chi-Sik Kim, Young-Jun Cho, Kyung-Hoon Choi, Sang-Hee Cho, Jeong-Hwan Jeon, Hong-Yeop Na
  • Publication number: 20170162801
    Abstract: The present disclosure relates to an electron buffering material, and an organic electroluminescent device comprising a first electrode, a second electrode facing the first electrode, a light-emitting layer between the first electrode and the second electrode, and an electron transport zone and an electron buffering layer between the light-emitting layer and the second electrode. The organic electroluminescent device comprising the electron buffering material of the present disclosure has a low driving voltage and excellent luminous efficiency.
    Type: Application
    Filed: June 17, 2015
    Publication date: June 8, 2017
    Inventors: Young-Jun Cho, Kyung-Hoon Choi, Sang-Hee Cho, Jae-Hoon Shim, Hong-Yeop Na
  • Publication number: 20170125699
    Abstract: The present invention relates to a multi-component host material and an organic electroluminescent device comprising the same. By comprising a specific combination of the multi-component host compounds, the organic electroluminescent device according to the present invention can provide high luminous efficiency and excellent lifespan characteristics.
    Type: Application
    Filed: April 17, 2015
    Publication date: May 4, 2017
    Inventors: Hee-Choon Ahn, Young-Kwang Kim, Su-Hyun Lee, Ji-Song Jun, Seon-Woo Lee, Chi-Sik Kim, Kyoung-Jin Park, Nam-Kyun Kim, Kyung-Hoon Choi, Jae-Hoon Shim, Young-Jun Cho, Kyung-Joo Lee
  • Publication number: 20170117488
    Abstract: The present invention relates to an organic electroluminescent device comprising at least one light-emitting layer between an anode and a cathode, wherein the light-emitting layer comprises a host and a phosphorescent dopant; the host consists of multi-component host compounds; at least a first host compound of the multi-component host compounds is a specific bicarbazole derivative containing an aryl group, and a second host compound is a specific carbazole derivative including a nitrogen-containing heteroaryl group. According to the present invention, the organic electroluminescent device using the multi-component host compounds has a high efficiency and long lifespan compared with the conventional device using one component host compound.
    Type: Application
    Filed: April 7, 2015
    Publication date: April 27, 2017
    Inventors: Hee-Choon Ahn, Young-Kwan Kim, Doo-Hyeon Moon, Su-Hyun Lee, Seon-Woo Lee, Chi-Sik Kim, Kyoung-Jin Park, Nam-Kyun Kim, Kyung-Hoon Choi, Jae-Hoon Shim, Young-Jun Cho, Kyung-Joo Lee
  • Publication number: 20170117485
    Abstract: The present invention relates to an electron buffering material and an organic electroluminescent device comprising the same in an electron buffer layer. It is possible to provide an organic electroluminescent device having excellent luminous efficiency and lifespan characteristics by using the electron buffering material according to the present invention.
    Type: Application
    Filed: March 17, 2015
    Publication date: April 27, 2017
    Applicant: Rohm and Haas Electronic Materials Korea Ltd.
    Inventors: Sang-He Cho, Jeong-Hwan Jeon, Hong-Yoep Na, Ji-Song Jun, Jae-Hoon Shim, Kyung-Hoon Choi, Chi-Sik Kim, Young-Jun Cho
  • Patent number: 9634215
    Abstract: Embodiments provide a light emitting device package including a package body having a through-hole; a radiator disposed in the through-hole and including an alloy layer having Cu; and a light emitting device disposed on the radiator, wherein the alloy layer includes at least one of W or Mo, and wherein the package body includes cavity including a sidewall and a bottom surface, and wherein the through-hole is formed in the bottom surface.
    Type: Grant
    Filed: October 16, 2015
    Date of Patent: April 25, 2017
    Assignee: LG Innotek Co., Ltd.
    Inventors: Su Jung Jung, Yon Tae Moon, Young Jun Cho, Son Kyo Hwang, Byung Mok Kim, Seo Yeon Kwon
  • Publication number: 20170098784
    Abstract: The present invention relates to a multi-component host material and an organic electroluminescent device comprising the same. By comprising a specific combination of the multi-component host compounds, the organic electroluminescent device according to the present invention can provide high luminous efficiency and excellent lifespan characteristics.
    Type: Application
    Filed: May 22, 2015
    Publication date: April 6, 2017
    Inventors: Chi-Sik Kim, Seon-Woo Lee, Su-Hyun Lee, Young-Kwang Kim, Hee-Choon Ahn, Jae-Hoon Shim, Kyoung-Jin Park, Nam-Kyun Kim, Kyung-Hoon Choi, Young-Jun Cho
  • Publication number: 20170077415
    Abstract: The present invention relates to an organic electroluminescent device comprising an electron transport material which comprises a compound having a specific structure. The organic electroluminescent device comprising the electron transport material of the present invention provides low driving voltage, high luminous efficiency, excellent lifespan characteristics, and excellent color coordination to efficiently emit blue light.
    Type: Application
    Filed: May 8, 2015
    Publication date: March 16, 2017
    Inventors: Chi-Sik Kim, Ji-Song Jun, Young-Jun Cho, Kyung-Hoon Choi, Sang-Hee Cho, Jae-Hoon Shim, Hong-Yeop Na
  • Publication number: 20170062730
    Abstract: The present invention relates to an organic electroluminescent device comprising at least one light-emitting layer between an anode and a cathode, wherein the light-emitting layer comprises a host and a phosphorescent dopant; the host consists of multi-component host compounds; at least a first host compound of the multi-component host compounds is a bicarbazole derivative containing pyridine, and a second host compound is a carbazole derivative including a nitrogen-containing heteroaryl group. According to the present invention, an organic electroluminescent device using the multi-component host compounds has high efficiency and long lifespan compared to a conventional device using one component of a host.
    Type: Application
    Filed: May 7, 2015
    Publication date: March 2, 2017
    Inventors: Hee-Choon Ahn, Young-Kwang Kim, Doo-Hyeon Moon, Su-Hyun Lee, Chi-Sik Kim, Seon-Woo Lee, Ji-Song Jun, Kyoung-Jin Park, Nam-Kyun Kim, Young-Jun Cho, Kyung-Hoon Choi, Jae-Hoon Shim, Yoo-Jin Doh
  • Publication number: 20170047638
    Abstract: An electronic device is provided that includes a housing, a first conductive member configured to form a part of the housing, or be partially disposed within the housing, wherein the first conductive member includes a first conductive protrusion disposed toward the inside of the housing, a second conductive member configured to form another part of the housing, wherein the second conductive member includes a portion disposed adjacent to a portion of the first conductive member and a second conductive protrusion disposed toward the inside of the housing, a non-conductive member disposed between the portion of the first conductive member and the portion of the second conductive member, a coupling structure that includes a conductor and is connected between the first conductive protrusion and the second conductive protrusion, and at least one communication circuit electrically connected to the second conductive member.
    Type: Application
    Filed: July 22, 2016
    Publication date: February 16, 2017
    Inventors: Bomyoung KIM, Jungho Park, Byungman Lim, Young-Jun Cho
  • Publication number: 20170047524
    Abstract: The present invention relates to an electron transport material and an organic electroluminescent device comprising the material in an electron transport layer. The compounds according to the present invention as an organic electron transport material have faster electron transport property compared to a conventional electron transport material. Thus, a device comprising the compounds according to the present invention shows low driving voltage, high efficiency, and excellent lifespan property. Furthermore, the electron transport compounds have excellent color coordinate, and thus are effective in blue light-emitting.
    Type: Application
    Filed: April 28, 2015
    Publication date: February 16, 2017
    Inventors: Chi-Sik Kim, Jeong-Eun Yang, Young-Jun Cho, Kyung-Hoon Choi, Sang-Hee Cho, Jae-Hoon Shim, Hong-Yeop Na