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: 20170047527
    Abstract: The present disclosure relates to an organic electroluminescent device comprising an anode, a cathode, and an organic layer between the anode and the cathode, wherein the organic layer comprises one or more light-emitting layers; and at least one light-emitting layer comprises one or more dopant compounds and two or more host compounds. The organic electroluminescent device of the present disclosure has low driving voltage, high color purity, high luminous efficiency, and a long lifespan.
    Type: Application
    Filed: April 29, 2015
    Publication date: February 16, 2017
    Applicant: Rohm and Haas Electronic Materials Korea Ltd.
    Inventors: Seon-Woo Lee, Su-Hyun Lee, Young-Kwang Kim, Hee-Choon Ahn, Doo-Hyeon Moon, Ji-Song Jun, Jae-Hoon Shim, Kyoung-Jin Park, Nam-Kyun Kim, Kyung-Hoon Choi, Chi-Sik Kim, Young-Jun Cho, Bitnari Kim
  • Publication number: 20170008367
    Abstract: There is provided a hybrid type heating system capable of heating air and water together. As an embodiment, the present invention provides a technology of carrying out heating not using a battery in an electric vehicle, a technology of heating a battery so that performance of the battery does not decrease under a low outdoor temperature condition, and a technology of carrying out heating with not decreasing driving distance of the electric vehicle or increasing the driving distance of the electric vehicle.
    Type: Application
    Filed: July 5, 2016
    Publication date: January 12, 2017
    Inventors: Chong Pyo CHO, Young Dug PYO, Young Jun CHO, Jin Young JANG, Wook Hyun LEE, Young Jin SHIN, Gang Chul KIM, Oh Seuk KWON
  • Publication number: 20170005276
    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, excellent luminous efficiency, and long lifespan.
    Type: Application
    Filed: March 17, 2015
    Publication date: January 5, 2017
    Applicants: Rohm and Haas Electronic Materials Korea Ltd., Rohm and Haas Electronic Materials Korea Ltd.
    Inventors: Chi-Sik Kim, Hyo-Jung Lee, Su-Hyun Lee, Ji-Song Jun, Jeong-Eun Yang, Jae-Hoon Shim, Kyung-Hoon Choi, Young-Jun Cho, Jeong-Hwan Jeon, Hong-Yoep Na, Sang-He Cho
  • Publication number: 20160370457
    Abstract: The present invention relates to an apparatus and method for generating a bidirectional chirp signal by using a phase accumulation polynomial, and the apparatus for generating a bidirectional chirp signal according to an embodiment may include an extraction unit extracting time interval information from the output of a frequency accumulator, a polynomial handling unit applying the phase accumulation polynomial to the extracted time interval information to generate a polynomial output value, and a bidirectional chirp signal output unit outputting a bidirectional chirp signal on the basis of the generated polynomial output value.
    Type: Application
    Filed: November 20, 2014
    Publication date: December 22, 2016
    Applicant: KOREA AEROSPACE RESEARCH INSTITUTE
    Inventors: Sang Burm Ryu, Jeong Hwan Yang, Jong Pyo Kim, Young Jin Won, Young Jun Cho, Chul Kang, Sang Kon Lee
  • Patent number: 9513404
    Abstract: An apparatus for meteorological observation is provided. The apparatus includes: a body part; a coupling part which moves along a first and a second guiding routes alternatively by a motor; a sensor part which rotates according to a movement of the coupling part; and a shoot controlling part for measuring data of the upper atmosphere when the coupling part is placed on the top guiding member while moving along the first guiding route, (ii) measuring data of front lower atmosphere when the coupling part is placed on the first branch while moving along the first guiding route, (iii) measuring data of the upper atmosphere when the coupling part is placed on the top guiding member while moving along the second guiding route, and (iv) measuring data of rear lower atmosphere when the coupling part is placed on the second branch while moving along the second guiding route.
    Type: Grant
    Filed: June 30, 2016
    Date of Patent: December 6, 2016
    Assignee: National Institute of Meteorological Research
    Inventors: Kyu Young Choi, Jong Chul Ha, Kwang Deuk Ahn, Young Jun Cho
  • Patent number: 9450294
    Abstract: A portable terminal is provided. The portable terminal includes a main housing, a sub housing, a mainboard, and an electric connector. The main housing has a first antenna radiator. The sub housing is separable from the main housing and has a second antenna radiator. The mainboard is disposed in the main housing and processes a radio signal. The electric connector is disposed in the main housing. When the sub housing and the main housing are separated from each other, the electric connector electrically connects the mainboard with the first antenna radiator of the main housing. When the sub housing and the main housing are coupled, the electric connector electrically connects the mainboard with the second antenna radiator of the sub housing.
    Type: Grant
    Filed: October 16, 2013
    Date of Patent: September 20, 2016
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Young-Jun Cho, Austin Kim, Se-Hyun Park, Joon-Ho Byun, Kyung-Jong Lee, Byung-Man Lim
  • Patent number: 9391117
    Abstract: One embodiment comprises first and second light-emitting chips, each comprising: a package body having a cavity; first to fourth lead frames disposed inside the package body; a first semiconductor layer; an active layer; and a second semiconductor layer and emitting light of a different wavelength from each other, wherein each of the first to fourth lead frames comprises: an upper surface part exposed to the cavity; and a side surface part bent from one side portion of the upper surface part and exposed by one surface of the package body. In addition, the first light-emitting chip is disposed on the upper surface part of the first lead frame, and the second light-emitting chip is disposed on the upper surface part of the third lead frame.
    Type: Grant
    Filed: June 7, 2013
    Date of Patent: July 12, 2016
    Assignee: LG Innotek Co., Ltd.
    Inventors: Nam Seok Oh, Young Jun Cho, Kwang Kyu Choi, Young Min Moon, Sun Mi Moon
  • Publication number: 20160133810
    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: Application
    Filed: December 29, 2015
    Publication date: May 12, 2016
    Inventors: Su Jung JUNG, Byung Mok KIM, Young Jun CHO, Seo Yeon KWON
  • Patent number: 9287512
    Abstract: The present invention relates to a novel organic electroluminescent compound, layer and an organic electroluminescent device using the same. Said organic luminescent compound provides an organic light emitting layer and/or device which has high luminous efficiency and a long operation lifetime and requires a low driving voltage improving power efficiency and power consumption.
    Type: Grant
    Filed: August 13, 2015
    Date of Patent: March 15, 2016
    Assignee: Rohm and Haas Electronic Materials Korea Ltd.
    Inventors: Hee-Choon Ahn, Young-Jun Cho, Hyuck Joo Kwon, Bong-Ok Kim, Seok Keun Yoon, Doo-Hyeon Moon, Hee Sook Kim, Su-Hyun Lee, Hyo-Nim Shin, Kyung Joo Lee, Kyoung-Jin Park, Nam-Kyun Kim
  • Publication number: 20160043296
    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: Application
    Filed: October 16, 2015
    Publication date: February 11, 2016
    Inventors: Su Jung JUNG, Yon Tae MOON, Young Jun CHO, Son Kyo HWANG, Byung Mok KIM, Seo Yeon KWON
  • Patent number: 9257626
    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: September 23, 2014
    Date of Patent: February 9, 2016
    Assignee: LG Innotek Co., Ltd.
    Inventors: Su Jung Jung, Byung Mok Kim, Young Jun Cho, Seo Yeon Kwon
  • Publication number: 20150357583
    Abstract: The present invention relates to a novel organic electroluminescent compound, layer and an organic electroluminescent device using the same. Said organic luminescent compound provides an organic light emitting layer and/or device which has high luminous efficiency and a long, operation lifetime and requires a low driving voltage improving power efficiency and power consumption.
    Type: Application
    Filed: August 13, 2015
    Publication date: December 10, 2015
    Inventors: Hee-Choon Ahn, Seok-Keun Yoon, Doo-Hyeon Moon, Hee-Sook Kim, Su-Hyun Lee, Hyo-Nim Shin, Kyung-Joo Lee, Kyoung-Jin Park, Nam-Kyun Kim, Young-Jun Cho, Hyuck-Joo Kwon, Bong-Ok Kim
  • Patent number: 9196814
    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: April 15, 2014
    Date of Patent: November 24, 2015
    Assignee: LG Innotek Co., Ltd.
    Inventors: Su Jung Jung, Yon Tae Moon, Young Jun Cho, Son Kyo Hwang, Byung Mok Kim, Seo Yeon Kwon
  • Patent number: 9171998
    Abstract: Disclosed is a light emitting lamp including a light source module including at least one light source and a light guide layer disposed on a substrate burying the at least one light source, and a housing accommodating the light source module, and the at least one light source includes a body having a cavity, a first lead frame including one end exposed to the cavity and the other end passing through the body and exposed to one surface of the body, a second lead frame including one end exposed to one portion of the surface of the body, the other end exposed to the another portion of the surface of the body, and an intermediate part exposed to the cavity, and at least one light emitting chip including a first semiconductor layer, an active layer and a second semiconductor layer, and disposed on the first lead frame.
    Type: Grant
    Filed: January 10, 2013
    Date of Patent: October 27, 2015
    Assignee: LG Innotek Co., Ltd.
    Inventors: Nam Seok Oh, Young Jun Cho, Kwang Kyu Choi, Young Min Moon, Sun Mi Moon
  • Patent number: 9136484
    Abstract: The present invention relates to electroluminescent compounds of formula 1 where A and/or B represent fluorene, carbazole, dibenzo[b,d]thiophene or dibenzo[b,d]furan derivatives and L1, X1, Ar1, Ar2, R5, R6 and R7 are as defined herein, and organic electroluminescent devices comprising the same. The compounds according to the present invention have an advantage in manufacturing an organic electroluminescent device which has a high luminous efficiency and a long operational lifetime.
    Type: Grant
    Filed: March 23, 2012
    Date of Patent: September 15, 2015
    Assignee: Rohm and Haas Electronics Materials Korea Ltd.
    Inventors: Hee-Sook Kim, Seok-Keun Yoon, Kyung-Joo Lee, Hong-Yoep Na, Nam-Kyun Kim, Young-Jun Cho, Hyuck-Joo Kwon, Bong-Ok Kim
  • Publication number: 20150227344
    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: Application
    Filed: February 5, 2015
    Publication date: August 13, 2015
    Inventors: Sun-Chun PARK, Hyung-Yul RYU, Young-Jun CHO
  • Publication number: 20150218441
    Abstract: The present invention relates to a specific combination of a dopant compound and a host compound, and an organic electroluminescent device comprising the same. The organic electroluminescent device of the present invention emits yellow-green light; lowers the driving voltage of the device by improving the current characteristic of the device; and improves power efficiency and operational lifespan.
    Type: Application
    Filed: March 13, 2014
    Publication date: August 6, 2015
    Inventors: Young-Jun Cho, So-Young Jung, Hyun-Ju Kang, Bong-Ok Kim, Chi-Sik Kim, Hyun Kim, Nam-Kyun Kim, Hyuck-Joo Kwon, Kyung-Joo Lee, Hyo-Nim Shin, Seok-Keun Yoon
  • Publication number: 20150171341
    Abstract: Provided are a novel organic electroluminescent compound and an organic electroluminescent device using the same. More particularly, the organic electroluminescent compound disclosed herein is represented by Chemical Formula 1: Since the organic electroluminescent compound disclosed herein exhibits good luminous efficiency and excellent life property, it may be used to manufacture OLED devices having very superior operation life.
    Type: Application
    Filed: February 18, 2015
    Publication date: June 18, 2015
    Inventors: Soo Young Lee, Young Jun Cho, Hyuck Joo Kwon, Bong Ok Kim, Sung Min Kim, Seung Soo Yoon
  • Publication number: 20150171346
    Abstract: The present invention relates to a novel organic electroluminescent compound and an organic electroluminescent device using the same. Said organic luminescent compound provides an organic electroluminescent device which has high luminous efficiency and a long operation lifetime and requires a low driving voltage improving power efficiency and power consumption.
    Type: Application
    Filed: February 18, 2015
    Publication date: June 18, 2015
    Inventors: Hee-Choon Ahn, Seok-Keun Yoon, Doo-Hyeon Moon, Hee-Sook Kim, Su-Hyun Lee, Hyo-Nim Shin, Kyung-Joo Lee, Kyoung-Jin Park, Nam-Kyun Kim, Young-Jun Cho, Hyuck-Joo Kwon, Bong-Ok Kim
  • Publication number: 20150159084
    Abstract: The present invention relates to a specific combination of a dopant compound and a host compound, and an organic electroluminescent device comprising the same. The organic electroluminescent device of the present invention emits yellow-green light; lowers the driving voltage of the device by improving the current characteristic of the device; and improves power efficiency and operational lifespan.
    Type: Application
    Filed: July 19, 2013
    Publication date: June 11, 2015
    Inventors: Young-Jun Cho, So-Young Jung, Hyun-Ju Kang, Bong-Ok Kim, Chi-Sik Kim, Hyun Kim, Nam-Kyun Kim, Hyuck-Joo Kwon, Kyung-Joo Lee, Hyo-Nim Shin, Seok-Keun Yoon