Patents by Inventor Yelin Kim

Yelin Kim 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).

  • Patent number: 10857524
    Abstract: The carbon nanotubes according to the present invention can provide higher conductivity by allowing the BET and crystal size to satisfy the conditions expressed by formula 1 below, and consequently, can improve the conductivity of a carbon composite material containing the carbon nanotubes. Lc×[Specific surface area of CNT (cm2/g)]1/2>80??[Formula 1] wherein, Lc is crystal size measured by X-ray diffraction.
    Type: Grant
    Filed: March 21, 2017
    Date of Patent: December 8, 2020
    Assignee: LG CHEM, LTD.
    Inventors: Kyung Yeon Kang, Yelin Kim, Jihee Woo, Jung Keun Yoo, Dong Hyun Cho
  • Patent number: 10839009
    Abstract: A method for analyzing time series data to identify an event of interest is provided. The method includes receiving, at a computing device, time series data that includes the event of interest, identifying, using the computing device, a start time of the event of interest and an end time of the event of interest by modeling at least one transitional pattern in the time series data, and categorizing, using the computing device, the event of interest based on the at least one transitional pattern.
    Type: Grant
    Filed: April 27, 2018
    Date of Patent: November 17, 2020
    Assignee: SMITHS DETECTION INC.
    Inventors: Jixu Chen, Peter Henry Tu, Ming-Ching Chang, Yelin Kim, Siwei Lyu
  • Patent number: 10686185
    Abstract: The present disclosure relates to a carbon nanotube dispersion including entangled-type carbon nanotubes, a dispersion medium, and partially hydrogenated nitrile rubber having a residual double bond (RDB) value of 0.5% by weight to 40% by weight calculated according to the following Mathematical Formula 1, wherein dispersed particle diameters of the carbon nanotubes have particle size distribution D50 of 2 ?m to 5 ?m, a method for preparing the same, and methods for preparing electrode slurry and an electrode using the same.
    Type: Grant
    Filed: August 26, 2016
    Date of Patent: June 16, 2020
    Assignee: LG CHEM, LTD.
    Inventors: Houngsik Yoo, Jong Won Lee, Dong Hyun Kim, Gyemin Kwon, Byoung Hoon Ahn, Yelin Kim, Sang Hoon Choy, Hyeon Choi, Jungkeun Yoo
  • Patent number: 10541067
    Abstract: The carbon nanotube pellets according to the present invention are produced by using only a small amount of solvent and have increased apparent density. The present invention can improve the problems of the change of the content generated by scattering of powders and safety issues by using carbon nanotubes in the form of pellet rather than carbon nanotubes in the form of powder in composite materials. And since the density of the pellet form is higher than that of the powder form, transport, transfer and improvement become easier. Therefore, it can be more effectively applied to the manufacturing of composite materials.
    Type: Grant
    Filed: October 17, 2016
    Date of Patent: January 21, 2020
    Assignee: LG CHEM, LTD.
    Inventors: Kyung Yeon Kang, Yelin Kim, Jihee Woo, Seungyong Lee, Hyungsik Jang, Dong Hyun Cho, Sang Hoon Choy
  • Patent number: 10468685
    Abstract: The present disclosure relates to a carbon nanotube dispersion liquid comprising bundle-type carbon nanotubes; a dispersion medium; and a polyvinyl butyral resin having a weight average molecular weight of greater than 50,000, a method for preparing the same, methods for preparing electrode slurry and an electrode using the same, and an electrode and a secondary battery prepared using the carbon nanotube dispersion liquid.
    Type: Grant
    Filed: July 27, 2016
    Date of Patent: November 5, 2019
    Assignee: LG CHEM, LTD.
    Inventors: Houngsik Yoo, Jongheon Seol, Jong Won Lee, Dong Hyun Kim, Gyemin Kwon, Yelin Kim, Jungkeun Yoo, Dong Hyun Cho, Sang Hoon Choy, Hyeon Choi, Kyungyeon Kang, Jihee Woo
  • Publication number: 20190060878
    Abstract: The carbon nanotubes according to the present invention can provide higher conductivity by allowing the BET and crystal size to satisfy the conditions expressed by formula 1 below, and consequently, can improve the conductivity of a carbon composite material containing the carbon nanotubes. Lc×[Specific surface area of CNT (cm2/g)]1/2>80??[Formula 1] wherein, Lc is crystal size measured by X-ray diffraction.
    Type: Application
    Filed: March 21, 2017
    Publication date: February 28, 2019
    Inventors: Kyung Yeon KANG, Yelin KIM, Jihee WOO, Jung Keun YOO, Dong Hyun CHO
  • Publication number: 20190051887
    Abstract: The present disclosure relates to a carbon nanotube dispersion including entangled-type carbon nanotubes, a dispersion medium, and partially hydrogenated nitrile rubber having a residual double bond (RDB) value of 0.5% by weight to 40% by weight calculated according to the following Mathematical Formula 1, wherein dispersed particle diameters of the carbon nanotubes have particle size distribution D50 of 2 ?m to 5 ?m, a method for preparing the same, and methods for preparing electrode slurry and an electrode using the same.
    Type: Application
    Filed: August 26, 2016
    Publication date: February 14, 2019
    Inventors: Houngsik YOO, Jong Won LEE, Dong Hyun KIM, Gyemin KWON, Byoung Hoon AHN, Yelin KIM, Sang Hoon CHOY, Hyeon CHOI, Jungkeun YOO
  • Patent number: 10141574
    Abstract: The present disclosure relates to a carbon nanotube dispersion including carbon nanotubes, a dispersion medium, and partially hydrogenated nitrile rubber having a residual double bond (RDB) value of 0.5% by weight to 40% by weight calculated according to Mathematical Formula 1, a method for preparing the same, and methods for preparing electrode slurry and an electrode using the same.
    Type: Grant
    Filed: September 5, 2016
    Date of Patent: November 27, 2018
    Assignee: LG CHEM, LTD.
    Inventors: Houngsik Yoo, Kyungyeon Kang, Jongheon Seol, Jong Won Lee, Dong Hyun Kim, Gyemin Kwon, Jihee Woo, Yelin Kim, Dong Hyun Cho, Sang Hoon Choy, Hyeon Choi
  • Publication number: 20180269485
    Abstract: The present disclosure relates to a carbon nanotube dispersion liquid comprising bundle-type carbon nanotubes; a dispersion medium; and a polyvinyl butyral resin having a weight average molecular weight of greater than 50,000, a method for preparing the same, methods for preparing electrode slurry and an electrode using the same, and an electrode and a secondary battery prepared using the carbon nanotube dispersion liquid.
    Type: Application
    Filed: July 27, 2016
    Publication date: September 20, 2018
    Applicant: LG CHEM, LTD.
    Inventors: Houngsik YOO, Jongheon SEOL, Jong Won LEE, Dong Hyun KIM, Gyemin KWON, Yelin KIM, Jungkeun YOO, Dong Hyun CHO, Sang Hoon CHOY, Hyeon CHOI, Kyungyeon KANG, Jihee WOO
  • Publication number: 20180246963
    Abstract: A method for analyzing time series data to identify an event of interest is provided. The method includes receiving, at a computing device, time series data that includes the event of interest, identifying, using the computing device, a start time of the event of interest and an end time of the event of interest by modeling at least one transitional pattern in the time series data, and categorizing, using the computing device, the event of interest based on the at least one transitional pattern.
    Type: Application
    Filed: April 27, 2018
    Publication date: August 30, 2018
    Inventors: Jixu Chen, Peter Henry Tu, Ming-Ching Chang, Yelin Kim, Siwei Lyu
  • Publication number: 20180240567
    Abstract: The carbon nanotube pellets according to the present invention are produced by using only a small amount of solvent and have increased apparent density. The present invention can improve the problems of the change of the content generated by scattering of powders and safety issues by using carbon nanotubes in the form of pellet rather than carbon nanotubes in the form of powder in composite materials. And since the density of the pellet form is higher than that of the powder form, transport, transfer and improvement become easier. Therefore, it can be more effectively applied to the manufacturing of composite materials.
    Type: Application
    Filed: October 17, 2016
    Publication date: August 23, 2018
    Inventors: Kyung Yeon KANG, Yelin KIM, Jihee WOO, Seungyong LEE, Hyungsik JANG, Dong Hyun CHO, Sang Hoon CHOY
  • Publication number: 20180226650
    Abstract: The present disclosure relates to a carbon nanotube dispersion including carbon nanotubes, a dispersion medium, and partially hydrogenated nitrile rubber having a residual double bond (RDB) value of 0.5% by weight to 40% by weight calculated according to Mathematical Formula 1, a method for preparing the same, and methods for preparing electrode slurry and an electrode using the same.
    Type: Application
    Filed: September 5, 2016
    Publication date: August 9, 2018
    Inventors: Houngsik YOO, Kyungyeon KANG, Jongheon SEOL, Jong Won LEE, Dong Hyun KIM, Gyemin KWON, Jihee WOO, Yelin KIM, Dong Hyun CHO, Sang Hoon CHOY, Hyeon CHOI
  • Patent number: 9984154
    Abstract: A method for analyzing time series data to identify an event of interest is provided. The method includes receiving, at a computing device, time series data that includes the event of interest, identifying, using the computing device, a start time of the event of interest and an end time of the event of interest by modeling at least one transitional pattern in the time series data, and categorizing, using the computing device, the event of interest based on the at least one transitional pattern.
    Type: Grant
    Filed: May 1, 2015
    Date of Patent: May 29, 2018
    Assignee: Morpho Detection, LLC
    Inventors: Jixu Chen, Peter Henry Tu, Ming-Ching Chang, Yelin Kim, Siwei Lyu
  • Publication number: 20160321257
    Abstract: A method for analyzing time series data to identify an event of interest is provided. The method includes receiving, at a computing device, time series data that includes the event of interest, identifying, using the computing device, a start time of the event of interest and an end time of the event of interest by modeling at least one transitional pattern in the time series data, and categorizing, using the computing device, the event of interest based on the at least one transitional pattern.
    Type: Application
    Filed: May 1, 2015
    Publication date: November 3, 2016
    Inventors: Jixu Chen, Peter Henry Tu, Ming-Ching Chang, Yelin Kim, Siwei Lyu