Patents by Inventor Eun-Kyung Kim

Eun-Kyung 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: 11329798
    Abstract: An apparatus for set intersection operation according to an embodiment includes a ciphertext acquisition unit configured to acquire a ciphertext for a first vector corresponding to a first subset of a universal set including a plurality of elements from an encryption apparatus, a transform unit configured to generate a second vector corresponding to a second subset of the universal set, a computation unit configured to generate a ciphertext for a third vector corresponding to an intersection of the first subset and the second subset, based on the ciphertext for the first vector and the second vector, and a ciphertext providing unit configured to provides the ciphertext for the third vector to the encryption apparatus.
    Type: Grant
    Filed: October 26, 2020
    Date of Patent: May 10, 2022
    Assignee: SAMSUNG SDS CO., LTD.
    Inventors: Jin Hyuck Jeong, Joo Hee Lee, Eun Kyung Kim, Kyu Young Choi, Duk Jae Moon, Hyo Jin Yoon
  • Patent number: 11329312
    Abstract: A pre-lithiation apparatus that pre-lithiates a negative electrode structure having a first surface on which a negative electrode is disposed to produce a negative electrode unit of a battery, the apparatus includes a first roll rotatable to wind or unwind the negative electrode structure before the pre-lithiation is performed, a second roll installed to be spaced apart from the first roll and rotatable to wind and collect the negative electrode structure, on which the pre-lithiation is performed, and a lithium roll crossing a direction in which the negative electrode structure is transferred from the first roll to the second roll to come into contact with at least one of a first surface and a second surface of the negative electrode structure while being transferred from the first roll to the second roll. The lithium roll includes a lithium foil and an elastic member.
    Type: Grant
    Filed: December 29, 2017
    Date of Patent: May 10, 2022
    Assignee: LG ENERGY SOLUTION, LTD.
    Inventors: Oh Byong Chae, Yoon Ah Kang, Jun Hyuk Song, Eun Kyung Kim, Sang Wook Woo
  • Patent number: 11322736
    Abstract: TA negative electrode, a secondary battery including the same, and a method of preparing the negative electrode are provided. The negative electrode, which includes a current collector; a negative electrode active material layer disposed on the current collector; a first layer disposed on the negative electrode active material layer and including Li; and a second layer disposed on the first layer and including an inorganic material is provided. A loading amount of the first layer may satisfy Equation 1: 0.65×(x1?y1)<loading amount of the first layer<0.95×(x1?y1).
    Type: Grant
    Filed: June 8, 2018
    Date of Patent: May 3, 2022
    Assignee: LG ENERGY SOLUTION, LTD.
    Inventors: Jun Hyuk Song, Oh Byong Chae, Eun Kyung Kim, Sang Wook Woo
  • Patent number: 11322734
    Abstract: A negative electrode active material which includes a secondary particle including first primary particles, wherein the first primary particle includes a core including SiOx, wherein 0?x<2, an intermediate layer which covers at least a portion of a surface of the core and includes silicon nitride, silicon oxynitride, or a mixture thereof, and a carbon coating layer which covers at least a portion of the intermediate layer and includes nitrogen-doped carbon, and a negative electrode and a lithium secondary battery which include the same.
    Type: Grant
    Filed: May 10, 2018
    Date of Patent: May 3, 2022
    Assignee: LG ENERGY SOLUTION, LTD.
    Inventors: Jung Hyun Choi, Yong Ju Lee, Dong Hyuk Kim, Eun Kyung Kim, Rae Hwan Jo, Il Geun Oh
  • Patent number: 11316145
    Abstract: A method for pre-lithiation of a negative electrode and a negative electrode formed by the method, the method including forming a mixture of inorganic material powder and molten lithium, forming a lithium metal-inorganic material composite ribbon, rolling the ribbon into a film and bonding the lithium metal-inorganic material composite film on a surface of a negative electrode to form a lithium metal-inorganic material composite layer on the surface of the negative electrode. This method reduces the deterioration of lithium during application of a mixture slurry and a negative electrode for a secondary battery, manufactured by the method for pre-lithiation, has improved initial irreversibility, and a secondary battery manufactured using such a negative electrode has excellent charging and discharging efficiency.
    Type: Grant
    Filed: August 3, 2018
    Date of Patent: April 26, 2022
    Assignee: LG ENERGY SOLUTION, LTD.
    Inventors: Sang Wook Woo, Eun Kyung Kim, Yoon Ah Kang, Jun Hyuk Song, Oh Byong Chae
  • Patent number: 11316156
    Abstract: A method of pre-lithiating a negative electrode for a secondary battery, including: dispersing a lithium metal powder, an inorganic material powder and a binder in a solvent to prepare a mixed solution; and applying the mixed solution to the negative electrode to form a lithium metal-inorganic composite layer on the negative electrode, thereby forming the pre-lithiated negative electrode. Also, a method for pre-lithiating a negative electrode having a high capacity by a simple process. Further, a negative electrode for a secondary battery manufactured through the pre-lithiation method provided in the present invention has an improved initial irreversibility, and secondary batteries manufactured using such a negative electrode for a secondary battery have excellent charge/discharge efficiency.
    Type: Grant
    Filed: August 15, 2019
    Date of Patent: April 26, 2022
    Assignee: LG ENERGY SOLUTION, LTD.
    Inventors: Sang Wook Woo, Eun Kyung Kim, Yoon Ah Kang, Jun Hyuk Song, Oh Byong Chae
  • Publication number: 20220093912
    Abstract: The present invention relates to a method of preparing a positive electrode for a secondary battery, which includes preparing a positive electrode by forming a positive electrode active material layer including a positive electrode active material, a conductive agent, and a binder on a positive electrode collector, impregnating the positive electrode in a sacrificial salt solution including a sacrificial salt additive, and, after the impregnating of the positive electrode in the sacrificial salt solution, drying the positive electrode to fill pores of the positive electrode active material layer with the sacrificial salt additive, and a positive electrode for a secondary battery prepared thereby.
    Type: Application
    Filed: December 2, 2021
    Publication date: March 24, 2022
    Applicant: LG Chem, Ltd.
    Inventors: Yong Ju Lee, Sun Young Shin, Se Mi Park, Il Geun Oh, Eun Kyung Kim
  • Patent number: 11283062
    Abstract: A negative electrode for a lithium secondary battery (and a lithium secondary battery including the same) including: a negative electrode current collector; a first negative electrode mixture layer present on at least one surface of the negative electrode current collector and including a first carbonaceous negative electrode active material, a first polymer binder and a first conductive material; a second negative electrode mixture layer present on a top surface of the first negative electrode mixture layer and including a silicon-based negative electrode active material, a second polymer binder and a second conductive material; and a third negative electrode mixture layer present on a top surface of the second negative electrode mixture layer and including a second carbonaceous negative electrode active material, a third polymer binder and a third conductive material.
    Type: Grant
    Filed: February 11, 2020
    Date of Patent: March 22, 2022
    Assignee: LG ENERGY SOLUTION, LTD.
    Inventors: Su-Min Lee, Yong-Ju Lee, Eun-Kyung Kim, Sun-Young Shin, Il-Geun Oh, Rae-Hwan Jo
  • Patent number: 11277257
    Abstract: A method for performing an operation according to one embodiment includes performing a homomorphic operation using one or more ciphertexts that are homomorphically encrypted based on an encryption key, determining a count value for a ciphertext generated through the homomorphic operation based on count values for each of the one or more ciphertexts, requesting a key management apparatus, which holds the encryption key and a decryption key corresponding to the encryption key, to re-encrypt the generated ciphertext based on the determined count value, acquiring, from the key management apparatus, a ciphertext generated by re-encrypting the generated ciphertext through decryption based on the decryption key and encryption based on the encryption key; and determining a count value for the acquired ciphertext to be a preset initial value.
    Type: Grant
    Filed: May 27, 2020
    Date of Patent: March 15, 2022
    Assignee: SAMSUNG SDS CO., LTD.
    Inventors: Eun Kyung Kim, Duk Jae Moon, Hyo Jin Yoon, Jung Hoon Sohn, Jang Hyuk Ahn, Jin Hyuck Jeong, Ji Hoon Kwon, Young Hyun Kim
  • Patent number: 11277256
    Abstract: A ciphertext comparison method uses homomorphic encryption. An apparatus performs the ciphertext comparison method using the homomorphic encryption. The ciphertext comparison method using homomorphic encryption includes acquiring a first ciphertext obtained by encrypting first real-number data using a homomorphic evaluation algorithm and a second ciphertext obtained by encrypting second real-number data using the homomorphic evaluation algorithm, and generating a ciphertext for a result for comparison in size between the first real-number data and the second real-number data using homomorphic evaluation for the first ciphertext, the second ciphertext, and an approximation function for approximating a signum function.
    Type: Grant
    Filed: October 23, 2019
    Date of Patent: March 15, 2022
    Assignee: SAMSUNG SDS CO., LTD.
    Inventors: Eun-Kyung Kim, Hyo-Jin Yoon, Young-Hyun Kim, Hee-Hyeon Park
  • Patent number: 11271199
    Abstract: A method for patterning a lithium metal surface, including the steps of (S1) forming an intaglio or relief pattern having a predetermined size on a patterning substrate; (S2) either (a) compressing lithium metal physically to a surface of the patterning substrate having the pattern formed thereon to form the predetermined pattern on the surface of the lithium metal, or (b) applying liquid lithium to the surface of the patterning substrate having the pattern formed thereon and solidifying the liquid lithium to form the predetermined pattern on the surface of the lithium metal; and (S3) separating the lithium metal having the predetermined pattern formed thereon from the patterning substrate, wherein the patterning substrate is at least one selected from a silicon wafer or polycarbonate substrate.
    Type: Grant
    Filed: August 17, 2018
    Date of Patent: March 8, 2022
    Assignee: LG ENERGY SOLUTION, LTD.
    Inventors: Yoon-Ah Kang, Eun-Kyung Kim, Sang-Wook Woo, Oh-Byong Chae, Soo-Hee Kang, Geun-Sik Jo, So-Young Choo
  • Publication number: 20220064246
    Abstract: The present invention relates to a novel complex that is formed by linking p40 subunit and EBI3 subunit via a linker and has excellent anti-inflammatory effects and immunomodulatory effects.
    Type: Application
    Filed: December 20, 2019
    Publication date: March 3, 2022
    Applicant: THE CATHOLIC UNIVERSITY OF KOREA INDUSTRY-ACADEMIC COOPERATION FOUNDATION
    Inventors: Mi-La CHO, Chul-Woo YANG, Sung-Hwan PARK, Seon-Yeong LEE, Young-Mee MOON, Seung-Ki KWOK, Hyeon-Beom SEO, Jun-Geol RYU, Eun-Kyung KIM
  • Publication number: 20220024918
    Abstract: The present technology provides triazolopyridin-3-ones or pharmaceutically acceptable salts thereof, preparation processes thereof, pharmaceutical compositions comprising the same, and uses thereof. The triazolopyridin-3-ones or their pharmaceutically acceptable salts exhibit inhibitory activity on VAP-1 and therefore can be usefully applied, e.g., for the treatment and prophylaxis of nonalcoholic hepatosteatosis (NASH).
    Type: Application
    Filed: July 6, 2021
    Publication date: January 27, 2022
    Inventors: Tae Dong HAN, Hee Jae TAK, Eun Kyung KIM, Dong Hoon KIM, Su Bin CHOI, Sol PARK, Hyun Ho CHOI, Tae Wang KIM, Mi Kyeong JU, Na Ry HA
  • Patent number: 11231465
    Abstract: The present disclosure relates to a device and method for controlling discharge by calculating a slope of a discharge profile of a battery having a lithium-based cathode material and a silicon-based anode cell material, counting a frequency the slope is equal to or smaller than a preset slope value and adjusting a final discharge voltage in response to the counted frequency being above a predetermined frequency.
    Type: Grant
    Filed: January 23, 2018
    Date of Patent: January 25, 2022
    Assignee: LG ENERGY SOLUTION, LTD.
    Inventors: Jun Hyuk Song, Suk In Noh, Eun Kyung Kim, Joo Sung Lee
  • Patent number: 11205797
    Abstract: A method for manufacturing a negative electrode for a lithium secondary battery. A negative electrode for a lithium secondary battery is manufactured while forming a composite of lithium metal and a negative electrode active material through a rolling process In the case of the lithium secondary battery to which the negative electrode containing such a composite is applied, when the battery starts to operate, the negative electrode active material is pre-lithiated, and thus charging/discharging process proceeds in the state where the lithium alloy is already formed on the negative electrode, thereby showing an effect of reducing initial irreversible phases.
    Type: Grant
    Filed: April 26, 2018
    Date of Patent: December 21, 2021
    Assignee: LG CHEM, LTD.
    Inventors: Yoonah Kang, Eun Kyung Kim, Sangwook Woo
  • Publication number: 20210369803
    Abstract: The present disclosure relates to a composition comprising a Salvia miltiorrhiza Bunge extract as an active ingredient for treatment or prevention of benign prostatic hyperplasia or alopecia, the Salvia miltiorrhiza Bunge extract being characterized by containing tanshinones in 2-70%, including tanshinone1, tanshinone2a, cryptotanshinone, and dihydrotanshinone, and can provide a pharmaceutical composition and a health functional food for treatment or prevention of alopecia and benign prostatic hyperplasia.
    Type: Application
    Filed: October 30, 2020
    Publication date: December 2, 2021
    Applicant: CUROME BIOSCIENCES CO., LTD.
    Inventors: Joo Seog YOON, Kang Sik SEO, Jeong Su HAN, Eun Kyung KIM
  • Patent number: 11183683
    Abstract: A method of pre-lithiating an electrode for a secondary battery, the method including: a first step of bringing a lithium metal into direct contact with an electrode in an electrolyte and applying pressure to the electrode to prepare a pre-lithiated electrode; and a second step of removing the lithium metal and then applying pressure to the pre-lithiated electrode to perform a stabilization process. The electrode for the secondary battery after going through the pre-lithiation can relieve volume change of the electrode and reduce contact loss of the electrode.
    Type: Grant
    Filed: July 27, 2018
    Date of Patent: November 23, 2021
    Assignee: LG CHEM, LTD.
    Inventors: Oh Byong Chae, Yoon Ah Kang, Jun Hyuk Song, Eun Kyung Kim, Sang Wook Woo
  • Publication number: 20210351432
    Abstract: The present invention relates to a negative electrode active material which includes a secondary particle including a first particle which is a primary particle, wherein the first particle includes a first core and a first surface layer which is disposed on a surface of the first core and contains carbon, and the first core includes a metal compound which includes one or more of a metal oxide and a metal silicate and one or more of silicon and a silicon compound; a method of preparing the same; an electrode including the same; and a lithium secondary battery including the same.
    Type: Application
    Filed: July 22, 2021
    Publication date: November 11, 2021
    Applicant: LG CHEM, LTD.
    Inventors: Jung Hyun CHOI, Yong Ju LEE, Eun Kyung KIM
  • Patent number: 11168073
    Abstract: The present technology provides 3,3-difluoroallylamines or pharmaceutically acceptable salts thereof, preparation processes thereof, pharmaceutical compositions comprising the same, and uses thereof. The 3,3-difluoroallylamines or their pharmaceutically acceptable salts exhibit potent inhibitory activity on VAP-1 and therefore can be usefully applied, e.g., for the treatment and prophylaxis of nonalcoholic hepatosteatosis (NASH).
    Type: Grant
    Filed: December 12, 2019
    Date of Patent: November 9, 2021
    Assignee: YUHAN CORPORATION
    Inventors: Tae Dong Han, Hee Jae Tak, Eun Kyung Kim, Eui Chul Lee, Sol Park, Hyok Jun Cho, Cheol Hee Lim, So Young Kim, Hyun Ho Choi, Da Na Jeong, Na Yeon Yang, Na Ry Ha
  • Patent number: 11165055
    Abstract: A negative electrode active material which may dramatically improve stability of a battery while not degrading battery performance such as cycle characteristics, and a negative electrode and a lithium secondary battery which include the same, wherein the negative electrode active material includes negative electrode active material particles which include artificial graphite in the form of a secondary particle and a carbon layer formed on the surface of the artificial graphite, and a coating layer which is formed on the negative electrode active material particle and includes a compound represented by Formula 1.
    Type: Grant
    Filed: May 10, 2018
    Date of Patent: November 2, 2021
    Assignee: LG CHEM, LTD.
    Inventors: Dong Sub Jung, Oh Byong Chae, Eun Kyung Kim, Ju Ho Chung, Chang Ju Lee