Patents by Inventor Tae Jin Choi

Tae Jin 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: 20230309366
    Abstract: Disclosed are a compound represented by Chemical Formula 1, a sensor including the compound, a sensor-embedded display panel, and an electronic device. In Chemical Formula 1, X1, A, and R1 to R5 are as described in the specification.
    Type: Application
    Filed: November 3, 2022
    Publication date: September 28, 2023
    Applicant: Samsung Electronics Co., Ltd.
    Inventors: Tae Jin CHOI, Hyerim HONG, Kyung Bae PARK, Feifei FANG, Sungyoung YUN, Chul Joon HEO
  • Patent number: 11086772
    Abstract: Provided is an operating method of a memory system including a plurality of logical address groups each having a preset logical address range. The operation method may include: selecting a victim block; selecting a plurality of target blocks among empty blocks; mapping at least one logical address group of the logical address groups to each of the target blocks; determining a first logical address group including a logical address of first valid data stored in the victim block, among the logical address groups; and backing up the first valid data into a first target block mapped to the first logical address group among the target blocks.
    Type: Grant
    Filed: December 19, 2018
    Date of Patent: August 10, 2021
    Assignee: SK hynix Inc.
    Inventors: Yong Jin, Du Yeong Roh, Dong Ju Lee, Tae Jin Choi
  • Patent number: 11066382
    Abstract: The present disclosure relates to a novel compound, and an organic electroluminescent device including the same, and by using the compound according to the present disclosure in an organic material layer, preferably a light emitting layer or an auxiliary light emitting layer, of an organic electroluminescent device, light emission efficiency, a driving voltage, a lifetime and the like of the organic electroluminescent device may be enhanced.
    Type: Grant
    Filed: December 23, 2016
    Date of Patent: July 20, 2021
    Assignee: SOLUS ADVANCED MATERIALS CO., LTD.
    Inventors: Tae Jin Choi, Jae Hoon Lee, Young Bae Kim
  • Patent number: 10756277
    Abstract: The present disclosure relates to a novel organic compound and an organic electroluminescent device comprising the same, and the organic compound of the present disclosure may be used for an organic material layer of the organic electroluminescent device, thereby improving the light emitting efficiency, driving voltage, lifetime, and the like of the organic electroluminescent device.
    Type: Grant
    Filed: April 7, 2015
    Date of Patent: August 25, 2020
    Assignee: DOOSAN SOLUS CO., LTD.
    Inventors: Tae Jin Choi, Ho-Cheol Park, Youngmi Beak, Eunjin Kim
  • Publication number: 20200231580
    Abstract: The present invention relate to a novel organic compound and an organic electroluminescent device including the same, and in particular, to a novel dibenzofuran-based compound having excellent thermal stability, carrier transport ability, light emitting ability and the like, and an organic electroluminescent device having low driving voltage, and enhanced luminous efficiency, lifetime properties and the like by including the novel dibenzofuran-based compound as a material of one or more organic material layers.
    Type: Application
    Filed: July 9, 2018
    Publication date: July 23, 2020
    Applicant: DOOSAN CORPORATION
    Inventor: Tae Jin CHOI
  • Publication number: 20200089603
    Abstract: Provided is an operating method of a memory system including a plurality of logical address groups each having a preset logical address range. The operation method may include: selecting a victim block; selecting a plurality of target blocks among empty blocks; mapping at least one logical address group of the logical address groups to each of the target blocks; determining a first logical address group including a logical address of first valid data stored in the victim block, among the logical address groups; and backing up the first valid data into a first target block mapped to the first logical address group among the target blocks.
    Type: Application
    Filed: December 19, 2018
    Publication date: March 19, 2020
    Inventors: Yong JIN, Du Yeong ROH, Dong Ju LEE, Tae Jin CHOI
  • Publication number: 20180346439
    Abstract: The present disclosure relates to a novel compound, and an organic electroluminescent device including the same, and by using the compound according to the present disclosure in an organic material layer, preferably a light emitting layer or an auxiliary light emitting layer, of an organic electroluminescent device, light emission efficiency, a driving voltage, a lifetime and the like of the organic electroluminescent device may be enhanced.
    Type: Application
    Filed: December 23, 2016
    Publication date: December 6, 2018
    Applicant: DOOSAN CORPORATION
    Inventors: Tae Jin CHOI, Jae Hoon LEE, Young Bae KIM
  • Patent number: 9865818
    Abstract: Provided are methods for synthesizing a halogen-functionalized carbon material and for fabricating an electronic device employing the same. The synthesizing method of the halogen-functionalized carbon material may include thermally treating a transition metal material at a first temperature in a hydrogen atmosphere and thermally treating the transition metal material at a second temperature, which is lower than or equal to the first temperature, while further supplying halocarbon on the transition metal material.
    Type: Grant
    Filed: April 9, 2015
    Date of Patent: January 9, 2018
    Assignee: INDUSTRY-ACADEMIC COOPERATION FOUNDATION, YONSEI UNIVERSITY
    Inventors: Hyungjun Kim, Tae Jin Choi
  • Publication number: 20170170406
    Abstract: The present disclosure relates to a novel organic compound and an organic electroluminescent device comprising the same, and the organic compound of the present disclosure may be used for an organic material layer of the organic electroluminescent device, thereby improving the light emitting efficiency, driving voltage, lifetime, and the like of the organic electroluminescent device.
    Type: Application
    Filed: April 7, 2015
    Publication date: June 15, 2017
    Applicant: DOOSAN CORPORATION
    Inventors: Tae Jin CHOI, Ho-Cheol PARK, Youngmi BEAK, Eunjin KIM
  • Publication number: 20150294907
    Abstract: Provided are methods for synthesizing a halogen-functionalized carbon material and for fabricating an electronic device employing the same. The synthesizing method of the halogen-functionalized carbon material may include thermally treating a transition metal material at a first temperature in a hydrogen atmosphere and thermally treating the transition metal material at a second temperature, which is lower than or equal to the first temperature, while further supplying halocarbon on the transition metal material.
    Type: Application
    Filed: April 9, 2015
    Publication date: October 15, 2015
    Inventors: Hyungjun KIM, Tae Jin CHOI
  • Patent number: 8569490
    Abstract: The present invention relates to a novel, high-yield and low-cost method for preparing entecavir, [1-S-(1?,3?,4?)]-2-amino-1,9-dihydro-9-[4-hydroxy-3-(hydroxymethyl)-2-methylenecyclopentyl]-6H-purin-6-one, an antiviral agent, and novel intermediates used therein.
    Type: Grant
    Filed: December 24, 2009
    Date of Patent: October 29, 2013
    Assignee: Hanmi Science Co., Ltd
    Inventors: Jaeheon Lee, Gha-Seung Park, Jin Hee Kim, Ji Eun Lee, Chul Hyun Park, Tae Jin Choi, Eun-Ju Park, Cheol Kyung Kim, Eun Jung Lim, Young-Kil Chang, Gwan Sun Lee
  • Patent number: 8569491
    Abstract: Disclosed are a novel, high-yield method for preparing entecavir and intermediates used therein.
    Type: Grant
    Filed: September 15, 2010
    Date of Patent: October 29, 2013
    Assignee: Hanmi Science Co., Ltd
    Inventors: Jae Heon Lee, Gha Seung Park, Jin Hee Kim, Tae Jin Choi, Ji Eun Lee, Jung Hee Han, Hyo Jeong Bang, Sun Young Jung, Young Kil Chang, Gwan Sun Lee, Maeng Sup Kim
  • Publication number: 20120202998
    Abstract: Disclosed are a novel, high-yield method for preparing entecavir and intermediates used therein.
    Type: Application
    Filed: September 15, 2010
    Publication date: August 9, 2012
    Applicant: HANMI HOLDINGS CO., LTD.
    Inventors: Jae Heon Lee, Gha Seung Park, Jin Hee Kim, Tae Jin Choi, Ji Eun Lee, Jung Hee Han, Hyo Jeong Bang, Sun Young Jung, Young Kil Chang, Gwan Sun Lee, Maeng Sup Kim
  • Publication number: 20110251387
    Abstract: The present invention relates to a novel, high-yield and low-cost method for preparing entecavir, [1-S-(1?,3?,4?)]-2-amino-1,9-dihydro-9-[4-hydroxy-3-(hydroxymethyl)-2-methylenecyclopentyl]-6H-purin-6-one, an antiviral agent, and novel intermediates used therein.
    Type: Application
    Filed: December 24, 2009
    Publication date: October 13, 2011
    Applicant: HANMI HOLDINGS CO., LTD.
    Inventors: Jaeheon Lee, Gha-Seung Park, Jin Hee Kim, Ji Eun Lee, Chul Hyun Park, Tae Jin Choi, Eun-Ju Park, Cheol Kyung Kim, Eun Jung Lim, Young-Kil Chang, Gwan Sun Lee
  • Publication number: 20100317868
    Abstract: The present invention relates to a novel method of preparing a taxane derivative having an anti-tumor and anti-leukemia activity, and intermediates used therein.
    Type: Application
    Filed: November 20, 2007
    Publication date: December 16, 2010
    Applicant: HANMI PHARM. CO., LTD.
    Inventors: Nam Du Kim, Wooseob Shin, Jaehyuk Jung, Dong Jun Kim, Gi Jeong Kim, Young Ho Moon, Young-Kil Chang, Gwan Sun Lee, Tae Jin Choi
  • Patent number: 7619954
    Abstract: A method and apparatus for controlling a maximum rotational speed of a recording medium, are discussed. The method according to an embodiment of the present invention includes determining an imbalance error of the recording medium, and variably setting a maximum rotational speed of the recording medium based on the determined imbalance error.
    Type: Grant
    Filed: March 21, 2006
    Date of Patent: November 17, 2009
    Assignee: Hitachi-LG Data Storage Korea, Inc.
    Inventor: Tae Jin Choi