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).
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Patent number: 11677065Abstract: The present invention relates to a cathode active material for a lithium secondary battery, and more particularly, to a cathode active material for a lithium secondary battery, which includes a core portion and a shell portion surrounding the core portion, in which a total content of cobalt in the core portion and the shell portion is 5 to 12 mol %, and the content of cobalt in the core portion and the shell portion is adjusted to be within a predetermined range. In the cathode active material precursor and the cathode active material for a secondary battery prepared using the same according to the present invention, optimal capacity of a lithium secondary battery may be increased by adjusting the cobalt content in the particles of the cathode active material, and life characteristics may be enhanced by improving stability.Type: GrantFiled: January 11, 2022Date of Patent: June 13, 2023Assignee: ECOPRO BM CO., LTD.Inventors: Sung Jin Jang, Moon Ho Choi, Jun Won Suh, Jung Han Lee, Ji Hyun Nam, Seung Woo Choi
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Patent number: 11670636Abstract: A semiconductor device includes a substrate having first and second regions, first fin groups spaced along a first direction on the first region, each of the first fin groups including adjacent first and second fins having longitudinal directions in a second direction intersecting the first direction, and third to fifth fins spaced along a third direction on the second region, the third to fifth fins having longitudinal directions in a fourth direction intersecting the third direction. The third through fifth fins are at a first pitch, the first and second fins are at a second pitch equal to or smaller than the first pitch, each of the first fin groups is at a first group pitch greater than three times the first pitch and smaller than four times the first pitch, and a width of the first and second fins is same as width of the third fin.Type: GrantFiled: January 18, 2022Date of Patent: June 6, 2023Assignee: SAMSUNG ELECTRONICS CO., LTD.Inventors: Tae Yong Kwon, Byoung-Gi Kim, Ki Hwan Lee, Jung Han Lee
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Publication number: 20230139863Abstract: The present invention relates to a positive electrode active material and a lithium secondary battery comprising the same, and more specifically, to a positive electrode active material including a lithium composite oxide containing at least nickel and titanium, wherein the titanium is present in an oxide form in at least a portion of the surface of the lithium composite oxide at the same time as being doped in the lithium composite oxide, and thus it is possible to simultaneously improve the output efficiency and high-temperature lifetime characteristics (high-temperature cycle capacity retention rate) of a lithium secondary battery using the positive electrode active material, and a lithium secondary battery including the same.Type: ApplicationFiled: October 12, 2022Publication date: May 4, 2023Applicant: ECOPRO BM CO., LTD.Inventors: Joong Ho BAE, Du Yeol KIM, Moon Ho CHOI, Jun Won SUH, Sun Kyu KIM, Jung Han LEE, Seung Woo CHOI
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Patent number: 11621418Abstract: 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: GrantFiled: October 30, 2020Date of Patent: April 4, 2023Assignee: 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
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Patent number: 11610966Abstract: A semiconductor device includes a plurality of active fins defined by an isolation layer on a substrate, a gate structure on the active fins and the isolation layer, and a gate spacer structure covering a sidewall of the gate structure. A sidewall of the gate structure includes first, second, and third regions having first, second, and third slopes, respectively. The second slope increases from a bottom toward a top of the second region. The second slope has a value at the bottom of the second region less than the first slope. The third slope is greater than the second slope.Type: GrantFiled: November 25, 2019Date of Patent: March 21, 2023Assignee: SAMSUNG ELECTRONICS CO., LTD.Inventors: Jung-Han Lee, Jae-Hwan Lee, Sang-Su Kim, Hwan-Wook Choi, Tae-Jong Lee, Seung-Mo Ha
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Patent number: 11588154Abstract: 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: GrantFiled: November 11, 2020Date of Patent: February 21, 2023Assignee: 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
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Patent number: 11515390Abstract: A semiconductor device includes a plurality of active fins defined by an isolation layer on a substrate, a gate structure on the active fins and the isolation layer, and a gate spacer structure covering a sidewall of the gate structure. A sidewall of the gate structure includes first, second, and third regions having first, second, and third slopes, respectively. The second slope increases from a bottom toward a top of the second region. The second slope has a value at the bottom of the second region less than the first slope. The third slope is greater than the second slope.Type: GrantFiled: August 14, 2020Date of Patent: November 29, 2022Assignee: SAMSUNG ELECTRONICS CO., LTD.Inventors: Jung-Han Lee, Jae-Hwan Lee, Sang-Su Kim, Hwan-Wook Choi, Tae-Jong Lee, Seung-Mo Ha
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Publication number: 20220140315Abstract: The present invention relates to a cathode active material for a lithium secondary battery, and more particularly, to a cathode active material for a lithium secondary battery, which includes a core portion and a shell portion surrounding the core portion, in which a total content of cobalt in the core portion and the shell portion is 5 to 12 mol %, and the content of cobalt in the core portion and the shell portion is adjusted to be within a predetermined range. In the cathode active material precursor and the cathode active material for a secondary battery prepared using the same according to the present invention, optimal capacity of a lithium secondary battery may be increased by adjusting the cobalt content in the particles of the cathode active material, and life characteristics may be enhanced by improving stability.Type: ApplicationFiled: January 11, 2022Publication date: May 5, 2022Inventors: Sung Jin JANG, Moon Ho CHOI, Jun Won SUH, Jung Han LEE, Ji Hyun NAM, Seung Woo CHOI
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Publication number: 20220139912Abstract: A semiconductor device includes a substrate having first and second regions, first fin groups spaced along a first direction on the first region, each of the first fin groups including adjacent first and second fins having longitudinal directions in a second direction intersecting the first direction, and third to fifth fins spaced along a third direction on the second region, the third to fifth fins having longitudinal directions in a fourth direction intersecting the third direction. The third through fifth fins are at a first pitch, the first and second fins are at a second pitch equal to or smaller than the first pitch, each of the first fin groups is at a first group pitch greater than three times the first pitch and smaller than four times the first pitch, and a width of the first and second fins is same as width of the third fin.Type: ApplicationFiled: January 18, 2022Publication date: May 5, 2022Inventors: Tae Yong KWON, Byoung-Gi KIM, Ki Hwan LEE, Jung Han LEE
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Publication number: 20220131143Abstract: 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: ApplicationFiled: July 22, 2021Publication date: April 28, 2022Applicant: 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
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Publication number: 20220106967Abstract: 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: ApplicationFiled: December 17, 2021Publication date: April 7, 2022Inventor: Jung Han LEE
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Patent number: 11282835Abstract: A semiconductor device includes a substrate having first and second regions, first fin groups spaced along a first direction on the first region, each of the first fin groups including adjacent first and second fins having longitudinal directions in a second direction intersecting the first direction, and third to fifth fins spaced along a third direction on the second region, the third to fifth fins having longitudinal directions in a fourth direction intersecting the third direction. The third through fifth fins are at a first pitch, the first and second fins are at a second pitch equal to or smaller than the first pitch, each of the first fin groups is at a first group pitch greater than three times the first pitch and smaller than four times the first pitch, and a width of the first and second fins is same as width of the third fin.Type: GrantFiled: January 7, 2020Date of Patent: March 22, 2022Assignee: SAMSUNG ELECTRONICS CO., LTD.Inventors: Tae Yong Kwon, Byoung-Gi Kim, Ki Hwan Lee, Jung Han Lee
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Patent number: 11258055Abstract: The present invention relates to a cathode active material for a lithium secondary battery, and more particularly, to a cathode active material for a lithium secondary battery, which includes a core portion and a shell portion surrounding the core portion, in which a total content of cobalt in the core portion and the shell portion is 5 to 12 mol %, and the content of cobalt in the core portion and the shell portion is adjusted to be within a predetermined range. In the cathode active material precursor and the cathode active material for a secondary battery prepared using the same according to the present invention, optimal capacity of a lithium secondary battery may be increased by adjusting the cobalt content in the particles of the cathode active material, and life characteristics may be enhanced by improving stability.Type: GrantFiled: November 21, 2018Date of Patent: February 22, 2022Assignee: ECOPRO BM CO., LTD.Inventors: Sung Jin Jang, Moon Ho Choi, Jun Won Suh, Jung Han Lee, Ji Hyun Nam, Seung Woo Choi
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Publication number: 20210399297Abstract: The present invention relates to a positive electrode active material and a lithium secondary battery including the same, and more particularly, to a bimodal-type positive electrode active material that includes a first lithium composite oxide which is a small particle and a second lithium composite oxide which is a large particle, which have different average particle diameters, thereby improving an increasing deviation of an average particle diameter and degraded impedance and lifetime characteristics due to excessive calcination for any one of the small and large particles during simultaneous calcination, a positive electrode including the same, and a lithium secondary battery using the same.Type: ApplicationFiled: April 7, 2021Publication date: December 23, 2021Applicant: ECOPRO BM CO., LTD.Inventors: Moon Ho CHOI, Gwang Seok CHOE, Jun Won SUH, Jin Kyeong YUN, Jung Han LEE, Seung Woo CHOI, Joong Ho BAE, Du yeol KIM
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Patent number: 11168837Abstract: Disclosed is a liquefied natural gas storage apparatus. The apparatus includes a heat insulated tank and liquefied natural gas contained in the tank. The tank has heat insulation sufficient to maintain liquefied natural gas therein such that most of the liquefied natural gas stays in liquid. The contained liquefied natural gas has a vapor pressure from about 0.3 bar to about 2 bar. The apparatus further includes a safety valve configured to release a part of liquefied natural gas contained in the tank when a vapor pressure of liquefied natural gas within the tank becomes higher than a cut-off pressure. The cut-off pressure is from about 0.3 bar to about 2 bar.Type: GrantFiled: October 21, 2019Date of Patent: November 9, 2021Assignee: DAEWOO SHIPBUILDING & MARINE ENGINEERING CO., LTD.Inventors: Jung Han Lee, Jung Ho Choi, Sung Kon Han, Dong Kyu Choi, Young Sik Moon
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Patent number: 11107686Abstract: A method for manufacturing a semiconductor device includes performing a first ion implantation process on a substrate to form a lower dopant region in the substrate, patterning the substrate having the lower dopant region to form active patterns, and performing a second ion implantation process on the active patterns to form an upper dopant region in an upper portion of each of the active patterns. The lower and upper dopant regions have a same conductivity type.Type: GrantFiled: December 19, 2019Date of Patent: August 31, 2021Inventors: Jung Han Lee, Byoung-gi Kim, Jong Pil Kim, Kihwan Lee
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Patent number: 11063250Abstract: The present invention relates to a cathode active material composition for a lithium secondary battery and a lithium secondary battery including the same, and more particularly, to a cathode active material composition for a lithium secondary battery, including a mixture of particles which are different in Ni composition and size and prepared at the same heat treatment temperature, and a lithium secondary battery including the same. According to the present invention, optimal capacity manifestation temperatures of a coarse particle and a fine particle may be adjusted to be similar by adjusting an Ni content of the coarse particle and the fine particle, and thus, a lithium secondary battery having enhanced output and lifetime may be manufactured.Type: GrantFiled: November 15, 2018Date of Patent: July 13, 2021Assignee: ECOPRO BM CO., LTD.Inventors: Moon Ho Choi, Jun Won Suh, Jung Han Lee, Ji Hyun Nam, Sung Jin Jang, Seung Woo Choi
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Publication number: 20210167380Abstract: 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: ApplicationFiled: November 11, 2020Publication date: June 3, 2021Applicant: 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
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Patent number: 11011516Abstract: An integrated circuit (IC) device includes a first and a second fin-type active region protruding from a first region and a second region, respectively, of a substrate, a first and a second gate line, and a first and a second source/drain region. The first fin-type active region has a first top surface and a first recess has a first depth from the first top surface. The first source/drain region fills the first recess and has a first width. The second fin-type active region has a second top surface and a second recess has a second depth from the second top surface. The second depth is greater than the first depth. The second source/drain region fills the second recess and has a second width. The second width is greater than the first width.Type: GrantFiled: December 6, 2019Date of Patent: May 18, 2021Assignee: Samsung Electronics Co., Ltd.Inventors: Jung-han Lee, Sun-ghil Lee, Myung-il Kang, Jeong-yun Lee, Seung-hun Lee, Hyun-jung Lee, Sun-wook Kim
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Publication number: 20210135212Abstract: 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: ApplicationFiled: September 29, 2020Publication date: May 6, 2021Applicant: 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