Patents by Inventor Jong Won Choi

Jong Won Choi 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: 20190131541
    Abstract: A compound of Chemical Formula 1, and a photoelectric device, an image sensor, and an electronic device including the same are disclosed: In Chemical Formula 1, each substituent is the same as defined in the detailed description.
    Type: Application
    Filed: October 31, 2018
    Publication date: May 2, 2019
    Applicant: Samsung Electronics Co., Ltd.
    Inventors: Taejin Choi, Sang Mo Kim, Sung Young Yun, Youn Hee Lim, Katsunori Shibata, Hiromasa Shibuya, Gae Hwang Lee, Norihito Ishii, Dong-Seok Leem, Yong Wan Jin, Yeong Suk Choi, Jong Won Choi, Hyesung Choi
  • Patent number: 10234201
    Abstract: A complex type dryer includes a rotational cylinder, a drying material, a hot air provider, a hot air chamber and a scraping unit. The drying material provider is disposed over the rotational cylinder and coats a drying material on a surface of the rotational cylinder. The hot air provider is connected to both sides of the rotational cylinder, and includes first and second hot air tubes. The first and second hot air tubes alternately provide a hot air into the rotational cylinder or alternately exhaust the hot air passing through the rotational cylinder. The hot air chamber is disposed along an outer surface of the rotational cylinder outside of the rotational cylinder. The scraping unit is disposed at a side of the rotational cylinder, and removes the drying material from the surface of the rotational cylinder after dried by the rotational cylinder and the hot air chamber.
    Type: Grant
    Filed: November 2, 2015
    Date of Patent: March 19, 2019
    Assignee: Korea institute of energy research
    Inventors: Sung-il Kim, Jong-Won Choi, Sang-Hyun Oh, Kye-Jong Lee
  • Patent number: 10224487
    Abstract: An organic light-emitting device includes an emission layer including a dopant comprising a first compound represented by Formula 1 and a host comprising a second compound represented by Formula 100 wherein in Formulae 1 and 100, X1, X11, R1, R2, R4, R51 to R60, L, a, n and m are the same as defined in the present application.
    Type: Grant
    Filed: May 8, 2014
    Date of Patent: March 5, 2019
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Jong-Won Choi, Yoon-Hyun Kwak, Bum-Woo Park, Sun-Young Lee, Wha-Il Choi, So-Yeon Kim, Ji-Youn Lee
  • Publication number: 20190051833
    Abstract: A compound of Chemical Formula 1, and an organic photoelectric device, an image sensor, and an electronic device including the same are disclosed: In Chemical Formula 1, each substituent is the same as described in the detailed description.
    Type: Application
    Filed: August 10, 2018
    Publication date: February 14, 2019
    Applicant: Samsung Electronics Co., Ltd.
    Inventors: Norihito Ishii, Katsunori Shibata, Takkyun Ro, Ohkyu Kwon, Sang Mo Kim, Kyung Bae Park, Sung Young Yun, Dong-Seok Leem, Youn Hee Lim, Yong Wan Jin, Yeong Suk Choi, Jong Won Choi, Taejin Choi, Hyesung Choi, Chul Joon Heo
  • Patent number: 10157691
    Abstract: [A] method and an apparatus for the treatment of waste ion exchange resins containing radionuclides, and further relating to a method for the treatment of waste ion exchange resins containing radionuclides by the stepwise heat treatment and an apparatus to accomplish the method.
    Type: Grant
    Filed: November 22, 2016
    Date of Patent: December 18, 2018
    Assignee: KOREA ATOMIC ENERGY RESEARCH INSTITUTE
    Inventors: Hee-Chul Yang, Min-Hoon Baik, Hyung-Ju Kim, Dong Yong Chung, Jong-Won Choi
  • Patent number: 9997728
    Abstract: An organometallic compound may be represented by one selected from the group of Formulae 5 to 8:
    Type: Grant
    Filed: June 16, 2016
    Date of Patent: June 12, 2018
    Assignee: Samsung Display Co., Ltd.
    Inventors: Jong-Won Choi, Yoon-Hyun Kwak, Bum-Woo Park, Sun-Young Lee, Wha-Il Choi, So-Yeon Kim, Ji-Youn Lee
  • Patent number: 9893301
    Abstract: Heterocyclic compounds, synthetic methods for preparing the same, and organic light-emitting display devices comprising the same are described. The subject heterocyclic compounds may comprise an aromatic ring or a heteroaromatic ring fused with a carbazole, dibenzothiophene, or dibenzofurane derivative, the compounds featuring rigid backbone structures with high glass transition temperatures and high melting points. The subject heterocyclic compounds may exhibit high electrical stability, improved charge transport ability, high heat resistance and improved light-emitting properties when used in organic light-emitting devices. Organic light-emitting display devices prepared according to the present invention exhibit lower driving voltages, increased luminescent efficiencies and longer lifetimes.
    Type: Grant
    Filed: June 17, 2013
    Date of Patent: February 13, 2018
    Assignee: Samsung Display Co., Ltd.
    Inventors: Bum-Woo Park, Yoon-Hyun Kwak, Sun-Young Lee, Jong-Won Choi, Wha-Il Choi, So-Yeon Kim, Ji-Youn Lee, Jin-Young Yun
  • Patent number: 9799839
    Abstract: An organometallic compound and an organic light-emitting diode (OLED) including the organometallic compound are provided. In exemplary embodiments, the organometallic compound is a platinum complex comprising one or two heterocyclic ligands, the heterocyclic ligands being the same or different if they are two in number, each heterocyclic ligand comprising two nitrogen heterocyclic rings connected by a single bond, one of the rings being six membered and comprising at least one nitrogen and the other ring being a 1,2-diazole or a 1,2,4-triazole ring. One or two other organic ligands may be attached to the central platinum atom in the complex. OLEDs including one of the subject platinum compounds in a light emission layer exhibit lower driving voltages, higher luminances, higher efficiencies and longer lifetimes than do comparative OLEDs built with established dopants incorporated into the light emitting layers.
    Type: Grant
    Filed: November 14, 2013
    Date of Patent: October 24, 2017
    Assignee: Samsung Diplay Co., Ltd.
    Inventors: Jong-Won Choi, Yoon-Hyun Kwak, Bum-Woo Park, Sun-Young Lee, Wha-Il Choi, So-Yeon Kim, Ji-Youn Lee
  • Patent number: 9762220
    Abstract: A voltage controlled oscillator (VCO) in a frequency synthesizer generates an output signal having a target frequency by being coarse tuned in accordance with a channel code derived through a binary tree search. Thereafter, the output signal of the VCO may be further tuned using a phase lock loop (PLL) circuit. Each stage of the binary tree search includes a comparison step that determines a channel code bit, and another step that confirms that the channel code converges to a final channel code within an established stage range value.
    Type: Grant
    Filed: December 18, 2015
    Date of Patent: September 12, 2017
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Sang-Wook Han, Sung-Jun Lee, Joon-Hee Lee, Jong-Won Choi
  • Patent number: 9761808
    Abstract: A heterocyclic compound represented by Formula 1 and an organic light-emitting device including the same. The heterocyclic compound represented by Formula 1 has excellent light emitting characteristics and high charge transporting capabilities.
    Type: Grant
    Filed: March 18, 2014
    Date of Patent: September 12, 2017
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Sun-Young Lee, Yoon-Hyun Kwak, Bum-Woo Park, Jong-Won Choi, Wha-Il Choi, So-Yeon Kim, Ji-Youn Lee
  • Patent number: 9722182
    Abstract: A heterocyclic compound represented by Formula 1 below, and an organic light-emitting device including the heterocyclic compound:
    Type: Grant
    Filed: July 11, 2013
    Date of Patent: August 1, 2017
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Sun-Young Lee, Yoon-Hyun Kwak, Bum-Woo Park, Jong-Won Choi, Wha-Il Choi, So-Yeon Kim, Ji-Youn Lee
  • Patent number: 9691992
    Abstract: An organic light-emitting diode includes a substrate, a first electrode, a second electrode facing the first electrode, and an organic layer between the first electrode and the second electrode. The organic layer includes an emission layer, and the emission layer includes a first compound represented by Formula 1 and a second compound represented by Formula 100.
    Type: Grant
    Filed: January 30, 2014
    Date of Patent: June 27, 2017
    Assignee: Samsung Displey Co., Ltd.
    Inventors: Jong-Won Choi, Yoon-Hyun Kwak, Bum-Woo Park, Sun-Young Lee, Wha-Il Choi, So-Yeon Kim, Ji-Youn Lee
  • Publication number: 20170148535
    Abstract: A method and an apparatus for the treatment of waste ion exchange resins containing radionuclides, and the present invention relates to a method for the treatment of waste ion exchange resins containing radionuclides by the stepwise heat treatment and an apparatus to accomplish the said method.
    Type: Application
    Filed: November 22, 2016
    Publication date: May 25, 2017
    Applicant: KOREA ATOMIC ENERGY RESEARCH INSTITUTE
    Inventors: HEE-CHUL YANG, MIN-HOON BAIK, HYUNG-JU KIM, DONG YONG CHUNG, JONG-WON CHOI
  • Patent number: 9595683
    Abstract: Organometallic compounds and organic light-emitting devices including the same are provided. Each subject organometallic compound may be a transition metal complex comprising up to seven organic ligands including one to three ligands which are derivatives of one of 2-(pyrazole-3-yl)pyrimidine and 2-(1,2,4-triazol-3-yl)pyrimidine. Organic light-emitting devices including the subject organometallic compounds show lower driving voltages, higher luminences, higher efficiencies and better lifetime characteristics versus organic light-emitting devices including comparative organometallic complexes.
    Type: Grant
    Filed: March 13, 2013
    Date of Patent: March 14, 2017
    Assignee: Samsung Display Co., Ltd.
    Inventors: Jong-Won Choi, Yoon-Hyun Kwak, Bum-Woo Park, Sun-Young Lee, Wha-Il Choi, So-Yeon Kim, Ji-Youn Lee
  • Patent number: 9590184
    Abstract: An organic light-emitting diode (OLED) is provided. The OLED comprises a substrate, a first electrode on the substrate, a second electrode disposed opposite to the first electrode, an emission layer disposed between the first electrode and the second electrode, a hole migration region disposed between the first electrode and the emission layer, and an electron migration region disposed between the emission layer and the second electrode. The hole migration region comprises a tertiary amine having one N-substituent comprising a substituted or unsubstituted carbazole moiety and another N-substituent comprising a substituted or unsubstituted fluorene moiety. At least one of the hole migration region and the emission layer comprises a substituted or unsubstituted compound comprising at least two carbazole moieties.
    Type: Grant
    Filed: September 9, 2013
    Date of Patent: March 7, 2017
    Assignee: Samsung Display Co., Ltd.
    Inventors: Sun-Young Lee, Yoon-Hyun Kwak, Bum-Woo Park, Jong-Won Choi, Wha-II Choi, So-Yeon Kim, Ji-Youn Lee
  • Patent number: 9525144
    Abstract: An organic light-emitting diode includes an emission layer, a hole migration transfer region and an electron migration region between the first and the second electrodes. The organic light-emitting diode (OLED) has low driving voltages, higher luminance, higher efficiency, higher color purity and longer lifetime than a conventional OLED.
    Type: Grant
    Filed: August 30, 2013
    Date of Patent: December 20, 2016
    Assignee: Samsung Display Co., Ltd.
    Inventors: Sun-Young Lee, Yoon-Hyun Kwak, Bum-Woo Park, Jong-Won Choi, Wha-Il Choi, So-Yeon Kim, Ji-Youn Lee
  • Patent number: 9490829
    Abstract: An electronic device for synthesizing a frequency is provided. The electronic device includes a bank changer configured to output a channel code corresponding to a reference frequency signal and a feedback frequency signal, a channel code mapper configured to generate a changed channel code by applying an offset to the channel code output from the bank changer, and a voltage controlled oscillator configured to control a total capacitance of a plurality of capacitors based on the changed channel code and to oscillate a frequency dependent on the total capacitance.
    Type: Grant
    Filed: April 3, 2014
    Date of Patent: November 8, 2016
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Sang-Wook Han, Sung-Jun Lee, In-Yup Kang, Thomas Byunghak Cho, Joon-Hee Lee, Si-Bum Jun, Jong-Won Choi
  • Patent number: 9467121
    Abstract: An electronic device for compensating for process variation is provided. The electronic device includes a first circuit configured to consume a current supplied to the first circuit, and a second circuit configured to control the current supplied to the first circuit, The second circuit is configured to generate a signal for controlling the current supplied to the circuit based on a frequency of a pulse signal generated using a second component that is of a same kind as a first component of the first circuit.
    Type: Grant
    Filed: August 26, 2014
    Date of Patent: October 11, 2016
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Joon-Hee Lee, Jong-Won Choi, Sang-Wook Han, Sung-Jun Lee, Young-Taek Lee, Young-Gun Pu
  • Publication number: 20160293868
    Abstract: An organometallic compound may be represented by one selected from the group of Formulae 5 to 8:
    Type: Application
    Filed: June 16, 2016
    Publication date: October 6, 2016
    Inventors: Jong-Won CHOI, Yoon-Hyun KWAK, Bum-Woo PARK, Sun-Young LEE, Wha-II CHOI, So-Yeon KIM, Ji-Youn LEE
  • Patent number: 9455409
    Abstract: An amine-based compound and an organic light-emitting device including the amine-based compound are provided.
    Type: Grant
    Filed: August 5, 2013
    Date of Patent: September 27, 2016
    Assignee: Samsung Display Co., Ltd.
    Inventors: Ji-Youn Lee, Yoon-Hyun Kwak, Bum-Woo Park, Sun-Young Lee, Jong-Won Choi, Wha-Il Choi, So-Yeon Kim