Patents by Inventor Jung-han Lee

Jung-han Lee 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: 12191481
    Abstract: The present invention relates to a lithium composite oxide including a coating layer having a boron-containing oxide and a lithium secondary battery including the same. More particularly, the present invention relates to a lithium composite oxide improved in lifetime and capacity characteristics by inducing a predetermined correlation between the molar ratio of nickel in a lithium composite oxide including a coating layer having a boron-containing oxide and a full width at half-maximum (FWHM; deg., 2?) of a (104) peak among XRD peaks defined by the hexagonal lattice with an R-3m space group, and a lithium secondary battery including the same.
    Type: Grant
    Filed: September 28, 2020
    Date of Patent: January 7, 2025
    Assignee: ECOPRO BM CO., LTD.
    Inventors: Moon Ho Choi, Jun Won Suh, Jin Kyeong Yun, Jung Han Lee, Mi Hye Yun, Seung Woo Choi, Gwang Seok Choe, Joong Ho Bae, Jin-Oh Son
  • Publication number: 20250006918
    Abstract: The present invention relates to a lithium composite oxide capable of improving capacity and lifetime characteristics of a lithium secondary battery and a lithium secondary battery including the same. According to the present invention, since the atomic ratio of boron (B) and nickel (Ni) in the surface region of the lithium composite oxide including primary particles enabling lithium intercalation and deintercalation and secondary particles formed by aggregating the primary particles is in a specific range, the stability of the lithium composite oxide may be improved, and thus it is possible to improve the capacity and lifetime characteristics of the lithium secondary battery using the lithium composite oxide as a positive electrode active material.
    Type: Application
    Filed: September 13, 2024
    Publication date: January 2, 2025
    Applicant: ECOPRO BM CO., LTD.
    Inventors: Moon Ho CHOI, Jun Won SUH, Jin Kyeong YUN, Jung Han LEE, Mi Hye YUN, Seung Woo CHOI, Gwang Seok CHOE, Ye Ri JANG, Joong Ho BAE
  • Patent number: 12166208
    Abstract: The present invention relates to a positive electrode active material having improved electrical characteristics by adjusting an aspect ratio gradient of primary particles included in a secondary particle, a positive electrode including the positive electrode active material, and a lithium secondary battery using the positive electrode.
    Type: Grant
    Filed: October 16, 2023
    Date of Patent: December 10, 2024
    Assignee: ECOPRO BM CO., LTD.
    Inventors: Moon Ho Choi, Seung Woo Choi, Jun Won Suh, Jin Kyeong Yun, Jung Han Lee, Gwang Seok Choe, Joong Ho Bae, Du Yeol Kim
  • Publication number: 20240396026
    Abstract: The present invention relates to a positive electrode active material which makes it possible to improve the electrochemical properties and stability of a positive electrode active material including a lithium composite oxide by adjusting the direction of a concentration gradient of a metal element of the lithium composite oxide, and a lithium secondary battery using a positive electrode including the positive electrode active material.
    Type: Application
    Filed: August 7, 2024
    Publication date: November 28, 2024
    Applicant: ECOPRO BM CO., LTD.
    Inventors: Gwang Seok CHOI, Moon Ho CHOI, Jun Won SUH, Jin Kyeong YUN, Jung Han LEE, Seung Woo CHOI, Joong Ho BAE, Du Yeol KIM
  • Publication number: 20240371784
    Abstract: The present disclosure relates to semiconductor device fabricating methods. An example semiconductor device fabricating method comprises forming a substrate including a chip area and an outside chip area and having a first surface and a second surface opposite to the first surface, forming a first trench, having a first width on the first surface, in the outside chip area of the substrate, forming a second trench, having a second width smaller than the first width, within the first trench, forming a first overlay key filling the first trench and the second trench, forming an active pattern on the first surface of the substrate, forming a source/drain pattern and a gate electrode on the active pattern in the chip area, and forming a backside contact on the second surface using a bottom surface of the first overlay key in the second trench.
    Type: Application
    Filed: December 11, 2023
    Publication date: November 7, 2024
    Inventors: Ji Soo Park, Jung Han Lee
  • Patent number: 12126017
    Abstract: The present invention relates to a lithium composite oxide capable of improving capacity and lifetime characteristics of a lithium secondary battery and a lithium secondary battery including the same. According to the present invention, since the atomic ratio of boron (B) and nickel (Ni) in the surface region of the lithium composite oxide including primary particles enabling lithium intercalation and deintercalation and secondary particles formed by aggregating the primary particles is in a specific range, the stability of the lithium composite oxide may be improved, and thus it is possible to improve the capacity and lifetime characteristics of the lithium secondary battery using the lithium composite oxide as a positive electrode active material.
    Type: Grant
    Filed: September 29, 2020
    Date of Patent: October 22, 2024
    Assignee: ECOPRO BM CO., LTD.
    Inventors: Moon Ho Choi, Jun Won Suh, Jin Kyeong Yun, Jung Han Lee, Mi Hye Yun, Seung Woo Choi, Gwang Seok Choe, Ye Ri Jang, Joong Ho Bae
  • Patent number: 12087946
    Abstract: The present invention relates to a positive electrode active material which makes it possible to improve the electrochemical properties and stability of a positive electrode active material including a lithium composite oxide by adjusting the direction of a concentration gradient of a metal element of the lithium composite oxide, and a lithium secondary battery using a positive electrode including the positive electrode active material.
    Type: Grant
    Filed: July 22, 2021
    Date of Patent: September 10, 2024
    Assignee: ECOPRO BM CO., LTD.
    Inventors: Gwang Seok Choi, Moon Ho Choi, Jun Won Suh, Jin Kyeong Yun, Jung Han Lee, Seung Woo Choi, Joong Ho Bae, Du Yeol Kim
  • Publication number: 20240266532
    Abstract: A lithium complex oxide includes a mixture of first particles of n1 (n1>40) aggregated primary particles and second particles of n2 (n2?20) aggregated primary particles, the lithium complex oxide represented by Chemical Formula 1 and having FWHM (deg., 2?) of 104 peak in XRD, defined by a hexagonal lattice having R-3m space group, in a range of Formula 1: where M is selected from: B, Ba, Ce, Cr, F, Mg, Al, Cr, V, Ti, Fe, Zr, Zn, Si, Y, Nb, Ga, Sn, Mo, W, P, Sr, and any combination thereof, 0.9?a?1.3, 0.6?x?1.0, 0.0?y?=0.4, 0.0?z?0.4, and 0.0?1?x?y?z?0.
    Type: Application
    Filed: April 10, 2024
    Publication date: August 8, 2024
    Inventors: Jung Han LEE, Seung Woo CHOI, Moon Ho CHOI, Jun Won SUH, Jin Kyeong YUN, Mi Hye YUN, Kwang Seok CHOI, Joong Ho BAE, Jin Oh SON
  • Publication number: 20240186506
    Abstract: The present invention relates to a positive electrode active material and a lithium secondary battery using a positive electrode containing the positive electrode active material. More particularly, the present invention relates to a positive electrode active material that is able to solve a problem of increased resistance according to an increase in Ni content by forming a charge transport channel in a lithium composite oxide and a lithium secondary battery using a positive electrode containing the positive electrode active material.
    Type: Application
    Filed: February 14, 2024
    Publication date: June 6, 2024
    Applicant: ECOPRO BM CO., LTD.
    Inventors: Moon Ho CHOI, Jun Won SUH, Jin Kyeong YUN, Jung Han LEE, Mi Hye YUN, Seung Woo CHOI, Gwang Seok CHOE, Ye Ri JANG, Joong Ho BAE
  • Publication number: 20240176372
    Abstract: A voltage regulator includes a voltage generator configured to receive a reference voltage and a feedback voltage and configured to generate an output voltage corresponding to the feedback voltage, a voltage divider configured to divide the output voltage to generate the feedback voltage, and a controller configured to control a voltage division value of the voltage divider in response to a program enable signal and a charge-pump enable signal during an activation period of an enable signal.
    Type: Application
    Filed: June 14, 2023
    Publication date: May 30, 2024
    Applicant: SK hynix Inc.
    Inventor: Jung Han LEE
  • Patent number: 11996559
    Abstract: A lithium complex oxide includes a mixture of first particles of n1 (n1>40) aggregated primary particles and second particles of n2 (n2?20) aggregated primary particles, the lithium complex oxide represented by Chemical Formula 1 and having FWHM (deg., 2?) of 104 peak in XRD, defined by a hexagonal lattice having R-3m space group, in a range of Formula 1: LiaNixCoyMnzM1-x-y-zO2,??[Chemical Formula 1] where M is selected from: B, Ba, Ce, Cr, F, Mg, Al, Cr, V, Ti, Fe, Zr, Zn, Si, Y, Nb, Ga, Sn, Mo, W, P, Sr, and any combination thereof, 0.9?a?1.3, 0.6?x?1.0, 0.0?y?=0.4, 0.0?z?0.4, and 0.0?1-x-y-z?0.4, ?0.025?FWHM(104)?{0.04+(xfirst particle?0.6)×0.25}?0.025,??[Formula 1] where FWHM(104) is represented by Formula 2, FWHM(104)={(FWHMChemical Formula 1 powder(104)?0.1×mass ratio of second particles)/mass ratio of first particles}?FWHMSi powder (220).
    Type: Grant
    Filed: February 23, 2023
    Date of Patent: May 28, 2024
    Assignee: ECOPRO BM CO., LTD.
    Inventors: Jung Han Lee, Seung Woo Choi, Moon Ho Choi, Jun Won Suh, Jin Kyeong Yun, Mi Hye Yun, Kwang Seok Choi, Joong Ho Bae, Jin Oh Son
  • Publication number: 20240120393
    Abstract: A semiconductor device includes a substrate, a first sheet pattern on the substrate, a gate electrode on the substrate and surrounding the first sheet pattern, a first source/drain pattern and a second source/drain pattern respectively connected to a first end and a second end of the first sheet pattern, a contact blocking pattern on a lower side of the second source/drain pattern, a first source/drain contact extending in a first direction and connected to the first source/drain pattern, and a second source/drain contact connected to the second source/drain pattern and extending in the first direction to contact an upper surface of the contact blocking pattern. A depth from an upper surface of the gate electrode to a lowermost portion of the first source/drain contact may be greater than a depth from the upper surface of the gate electrode to the upper surface of the contact blocking pattern.
    Type: Application
    Filed: June 14, 2023
    Publication date: April 11, 2024
    Applicant: Samsung Electronics Co., Ltd.
    Inventors: Jisoo PARK, Myung Il KANG, Ji Wook KWON, Jung Han LEE, Subin CHOI
  • Patent number: 11942635
    Abstract: The present invention relates to a positive electrode active material and a lithium secondary battery using a positive electrode containing the positive electrode active material. More particularly, the present invention relates to a positive electrode active material that is able to solve a problem of increased resistance according to an increase in Ni content by forming a charge transport channel in a lithium composite oxide and a lithium secondary battery using a positive electrode containing the positive electrode active material.
    Type: Grant
    Filed: September 28, 2020
    Date of Patent: March 26, 2024
    Assignee: ECOPRO BM CO., LTD.
    Inventors: Moon Ho Choi, Jun Won Suh, Jin Kyeong Yun, Jung Han Lee, Mi Hye Yun, Seung Woo Choi, Gwang Seok Choe, Ye Ri Jang, Joong Ho Bae
  • Publication number: 20240084967
    Abstract: To improve productivity and sealing performance, the present disclosure provides a pressure vessel including a boss part including a boss extension portion that is provided in a cylindrical shape, a boss flange portion integrally extending from a lower portion of the boss extension portion, and a boss support portion integrally extending from an inner end of the boss flange portion, a fusion-coupling part insert-injected in a form surrounding an outer surface of one side of the boss support portion in the circumferential direction, and a liner part which has an accommodation space for accommodating a fluid therein, extends in a longitudinal direction, and has both open sides, and the liner part is made of the same material as the fusion-coupling part, and both inner circumferences of the liner part are in surface contact with and fusion-coupled to an outer circumference of the fusion-coupling part.
    Type: Application
    Filed: November 10, 2022
    Publication date: March 14, 2024
    Inventors: Jung Han LEE, Sang Eon PARK, Sung Man SOHN
  • Patent number: 11892010
    Abstract: Provided is a combustible gas compressor for compressing combustible gas. The combustible gas compressor comprising: a compressor housing having an impeller rotatably disposed therein; a motor housing having a motor for driving the impeller therein; and a bearing rotatably supporting a rotational shaft transmitting rotation driving force of the motor to the impeller, wherein the compressor housing is integrally formed with the motor housing, the bearing is a self-lubricating type bearing not using lubricant oil, the self-lubricating type bearing being configured to lift the rotational shaft using gas.
    Type: Grant
    Filed: December 17, 2021
    Date of Patent: February 6, 2024
    Assignee: CLUSTER LNG CO., LTD.
    Inventor: Jung Han Lee
  • Publication number: 20240038988
    Abstract: The present invention relates to a positive electrode active material having improved electrical characteristics by adjusting an aspect ratio gradient of primary particles included in a secondary particle. a positive electrode including the positive electrode active material, and a lithium secondary battery using the positive electrode.
    Type: Application
    Filed: October 16, 2023
    Publication date: February 1, 2024
    Applicant: ECOPRO BM CO., LTD.
    Inventors: Moon Ho CHOI, Seung Woo CHOI, Jun Won SUH, Jin Kyeong YUN, Jung Han LEE, Gwang Seok CHOE, Joong Ho BAE, Du Yeol KIM
  • Publication number: 20240022834
    Abstract: An image sensor includes a first capacitor for sampling a coarse ramp signal, a second capacitor for sampling a sum of a voltage of the first capacitor and a fine ramp signal, and a comparator for generating a comparison signal obtained by comparing a pixel voltage received from a pixel with the voltage of the first capacitor voltage or a voltage of the second capacitor. The image sensor further includes a data output unit for outputting bit data corresponding to the pixel, based on the comparison signal.
    Type: Application
    Filed: December 15, 2022
    Publication date: January 18, 2024
    Applicant: SK hynix Inc.
    Inventor: Jung Han LEE
  • Patent number: 11837725
    Abstract: The present invention relates to a positive electrode active material having improved electrical characteristics by adjusting an aspect ratio gradient of primary particles included in a secondary particle, a positive electrode including the positive electrode active material, and a lithium secondary battery using the positive electrode.
    Type: Grant
    Filed: January 6, 2023
    Date of Patent: December 5, 2023
    Assignee: ECOPRO BM CO., LTD.
    Inventors: Moon Ho Choi, Seung Woo Choi, Jun Won Suh, Jin Kyeong Yun, Jung Han Lee, Gwang Seok Choe, Joong Ho Bae, Du Yeol Kim
  • Patent number: 11815103
    Abstract: Provided is a boil-off gas compressor for LNG-fueled vessels using LNG as fuel for a propulsion engine thereof. The boil-off gas compressor includes: compressor housings in which impellers are rotatably arranged; a motor housing in which a motor is disposed to drive the impellers; and a bearing for rotatably supporting rotation shafts, which transfer rotation drive force of the motor to the impellers. The compressor housings may be integrally formed with the motor housing.
    Type: Grant
    Filed: June 24, 2019
    Date of Patent: November 14, 2023
    Assignee: CLUSTER LNG CO., LTD.
    Inventor: Jung Han Lee
  • Publication number: 20230197952
    Abstract: A lithium complex oxide includes a mixture of first particles of n1 (n1>40) aggregated primary particles and second particles of n2 (n2?20) aggregated primary particles, the lithium complex oxide represented by Chemical Formula 1 and having FWHM (deg., 2?) of 104 peak in XRD, defined by a hexagonal lattice having R-3m space group, in a range of Formula 1: LiaNixCoyMnzM1-x-y-zO2, ??[Chemical Formula 1] where M is selected from: B, Ba, Ce, Cr, F, Mg, Al, Cr, V, Ti, Fe, Zr, Zn, Si, Y, Nb, Ga, Sn, Mo, W, P, Sr, and any combination thereof, 0.9?a?1.3, 0.6?x?1.0, 0.0?y?=0.4, 0.0?z?0.4, and 0.0?1-x-y-z?0.4, ?0.025?FWHM(104)?{0.04+(xfirst particle?0.6)×0.25}?0.025, ??[Formula 1] where FWHM(104) is represented by Formula 2, FWHM(104)={(FWHMChemical Formula 1 powder(104)?0.1×mass ratio of second particles)/mass ratio of first particles}?FWHMSi powder (220).
    Type: Application
    Filed: February 23, 2023
    Publication date: June 22, 2023
    Inventors: Jung Han LEE, Seung Woo CHOI, Moon Ho CHOI, Jun Won SUH, Jin Kyeong YUN, Mi Hye YUN, Kwang Seok CHOI, Joong Ho BAE, Jin Oh SON