Patents by Inventor Seok-soo Lee

Seok-soo 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: 11936773
    Abstract: An encryption key management method includes: receiving a data registration request from a supplier terminal, determining a data identifier associated with the content data, encrypting a master key with a public key of the supplier terminal, and providing the supplier terminal with the master key encrypted with the public key of the supplier terminal, the data identifier, and a key update count value; receiving a subscription application related to the data identifier from a first subscriber terminal, encrypting the master key with a public key of the first subscriber terminal, and providing the first subscriber terminal with the master key encrypted with the public key of the first subscriber terminal and the key update count value; receiving encrypted content data encrypted with the symmetric key and a hash for the content data from the supplier terminal; and transmitting the encrypted content data and the hash to the first subscriber terminal.
    Type: Grant
    Filed: November 18, 2021
    Date of Patent: March 19, 2024
    Assignee: Penta Security Inc.
    Inventors: Jin Hyeok Oh, Sang Jun Lee, Myong Cheol Lim, Sang Gyoo Sim, Duk Soo Kim, Seok Woo Lee
  • Publication number: 20240090318
    Abstract: The present invention relates to a novel heterocyclic compound usable in an organic light-emitting device and to an organic light-emitting device comprising same, wherein [chemical formula A] is as described in the detailed description of the invention.
    Type: Application
    Filed: December 28, 2021
    Publication date: March 14, 2024
    Inventors: Se-Jin LEE, Seok-Bae PARK, Si-In KIM, Hee-Dae KIM, Yeong-Tae CHOI, Ji-Yung KIM, Kyung-Tae KIM, Myeong-Jun KIM, Kyeong-hyeon KIM, Seung-soo LEE, Tae Gyun LEE, Joon-Ho KIM
  • Patent number: 9653756
    Abstract: A magnesium compound represented by Formula 1 wherein the magnesium compound is dissolvable in an ether solvent, an electrolyte solution for magnesium batteries that includes the magnesium compound and a magnesium battery including the electrolyte solution are provided: wherein, in Formula 1, X1 is a halogen atom; and at least one of X2 and X3 each independently is an electron withdrawing group, wherein, when X2 or X3 is not an electron withdrawing group, X2 or X3 is a hydrogen atom, a C1-C20 alkyl group, or a C6-C20 aryl group.
    Type: Grant
    Filed: July 12, 2013
    Date of Patent: May 16, 2017
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Young-gyoon Ryu, Seok-soo Lee, Myung-jin Lee
  • Patent number: 9478804
    Abstract: A cathode active material including a composite transition metal oxide including: sodium; a first transition metal; and a second transition metal, wherein the composite transition metal oxide has a first diffraction peak corresponding to a Miller index of (003) and derived from a layered rock salt structure, and a second diffraction peak corresponding to a Miller index of (104) and derived from a cubic rock salt structure in an X-ray powder diffraction (XRD) pattern, wherein an intensity ratio (I1/I2) of the first diffraction peak to the second diffraction peak is about 7 or greater.
    Type: Grant
    Filed: October 21, 2014
    Date of Patent: October 25, 2016
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Kwang-jin Park, Dong-wook Han, Hyun-jin Kim, Seok-soo Lee, Won-seok Chang
  • Patent number: 9425483
    Abstract: An electrolyte solution including a non-aqueous organic solvent and a magnesium salt represented by Formula 1: wherein in Formula 1, groups CY1, CY2, A1 to A10, and variable n are defined in the specification.
    Type: Grant
    Filed: April 17, 2014
    Date of Patent: August 23, 2016
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Basab Roy, Dong-young Kim, Youn-hee Lim, Seok-soo Lee
  • Patent number: 9325004
    Abstract: A cathode active material for a magnesium secondary battery, the cathode active material including a composite transition metal oxide which is expressed by Chemical Formula 1 and intercalates and deintercalates magnesium: MgxMa1?yMbyO2+d??Chemical Formula 1 wherein 0?x?1, 0.05?y<0.5, and ?0.3?d<1, and Ma and Mb are each independently a metal selected from the group consisting of Groups 5 to 12 of the Periodic Table.
    Type: Grant
    Filed: January 8, 2014
    Date of Patent: April 26, 2016
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Won-seok Chang, Seok-soo Lee, Ju-sik Kim, Jae-myung Lee, Dong-wook Han
  • Patent number: 9214257
    Abstract: An organic electrolyte for magnesium batteries including an ether solvent; a magnesium compound represented by Formula 1 dissolved in the ether solvent; and a Lewis acid: wherein CY1 is an optionally substituted C6-C50 aromatic ring, X1 is, each independently, an electron withdrawing group, X2 is a halogen, n is an integer of 1 to 10, and an angle between a CY1-X1 bond and a CY1-Mg bond is 150 degrees or less.
    Type: Grant
    Filed: March 13, 2013
    Date of Patent: December 15, 2015
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Young-gyoon Ryu, Seok-soo Lee, Dong-jun Lee, Myung-jin Lee, In-sun Jung
  • Patent number: 9118086
    Abstract: An electrolyte for a lithium secondary battery, which includes a lithium salt, a nonaqueous organic solvent and at least one additive selected from the group consisting of vitamin G (vitamin B2, riboflavin), vitamin B3 (niacinamide), vitamin B4 (adenine), vitamin B5 (pantothenic acid), vitamin H (vitamin B7, biotin), vitamin M (vitamin B9, folic acid), vitamin BX (4-aminobenzoic acid), vitamin D2 (ergocalciferol), vitamin D3 (cholecalciferol), vitamin K1 (phylloquinone), ascorbyl palmitate, and sodium ascorbate.
    Type: Grant
    Filed: December 28, 2011
    Date of Patent: August 25, 2015
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Yoon-sok Kang, Seok-soo Lee, Won-chang Choi, Jin-hwan Park, Mi-jeong Song
  • Patent number: 9059476
    Abstract: An electrolyte for a lithium secondary battery, the electrolyte comprising: a lithium salt, a non-aqueous organic solvent, and an additive represented by Formula 1 below: wherein R1, R2, R3, and R4 are the same as defined in the detailed description.
    Type: Grant
    Filed: June 29, 2011
    Date of Patent: June 16, 2015
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Yoon-sok Kang, Seok-soo Lee, Young-gyoon Ryu, Jin-hwan Park, Mi-jeong Song
  • Patent number: 9054392
    Abstract: An electrolytic solution including: a magnesium salt; a non-aqueous organic solvent; and an anion receptor, wherein the anion receptor comprises at least one compound selected from the group consisting of compounds represented by Formulae 1 and 2 below: where A, m, p1, p2, p3, q1, RA, Ra, R1 through R6, and Ry are the same as described in the detailed description section.
    Type: Grant
    Filed: June 10, 2011
    Date of Patent: June 9, 2015
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Young-gyoon Ryu, Sang-ho Park, Myung-dong Cho, Young-min Choi, Seok-soo Lee
  • Publication number: 20150140450
    Abstract: An electrolyte solution including a non-aqueous organic solvent and a magnesium salt represented by Formula 1: wherein in Formula 1, groups CY1, CY2, A1 to A10, and variable n are defined in the specification.
    Type: Application
    Filed: April 17, 2014
    Publication date: May 21, 2015
    Applicant: Samsung Electronics Co., Ltd.
    Inventors: Basab ROY, Dong-young KIM, Youn-hee LIM, Seok-soo LEE
  • Publication number: 20150111097
    Abstract: A cathode active material including a composite transition metal oxide including: sodium; a first transition metal; and a second transition metal, wherein the composite transition metal oxide has a first diffraction peak corresponding to a Miller index of (003) and derived from a layered rock salt structure, and a second diffraction peak corresponding to a Miller index of (104) and derived from a cubic rock salt structure in an X-ray powder diffraction (XRD) pattern, wherein an intensity ratio (I1/I2) of the first diffraction peak to the second diffraction peak is about 7 or greater.
    Type: Application
    Filed: October 21, 2014
    Publication date: April 23, 2015
    Inventors: Kwang-jin PARK, Dong-wook HAN, Hyun-jin KIM, Seok-soo LEE, Won-seok CHANG
  • Publication number: 20150086859
    Abstract: A cathode active material for a magnesium secondary battery, the cathode active material including a composite transition metal oxide which is expressed by Chemical Formula 1 and intercalates and deintercalates magnesium: MgxMa1-yMbyO2+d??Chemical Formula 1 wherein 0?x?1, 0.05?y<0.5, and ?0.3?d<1, and Ma and Mb are each independently a metal selected from the group consisting of Groups 5 to 12 of the Periodic Table.
    Type: Application
    Filed: January 8, 2014
    Publication date: March 26, 2015
    Applicant: Samsung Electronics Co., Ltd.
    Inventors: Won-seok CHANG, Seok-soo LEE, Ju-sik KIM, Jae-myung LEE, Dong-wook HAN
  • Patent number: 8968920
    Abstract: Organic electrolyte solutions and lithium batteries employing the same are provided. In one embodiment, an organic electrolyte solution includes a silane compound. The inventive organic electrolyte solutions prevent crack formation caused by volumetric changes in the anode active material during charging/discharging of the battery. This improves charge/discharge characteristics, resulting in improved battery stability, reliability, and charge/discharge efficiency, which is a dramatic improvement over conventional organic electrolyte solutions, which have higher irreversible capacities due to the decomposition of polar solvents.
    Type: Grant
    Filed: August 31, 2007
    Date of Patent: March 3, 2015
    Assignee: Samsung SDI Co., Ltd.
    Inventors: Seok-soo Lee, Young-gyoon Ryu, Han-su Kim, Nina K. Gusarova
  • Patent number: 8945765
    Abstract: A secondary lithium battery electrolyte including a lithium salt, a nonaqueous organic solvent, and an electrolyte additive represented by Formula 1: where n is an integer in the range of 1 to 4. A secondary lithium battery having excellent cycle and high temperature retention characteristics can be provided by using such secondary lithium battery electrolyte.
    Type: Grant
    Filed: September 15, 2009
    Date of Patent: February 3, 2015
    Assignee: Samsung SDI Co., Ltd.
    Inventors: Seok-soo Lee, Young-gyoon Ryu, Dong-joon Lee
  • Patent number: 8802285
    Abstract: An organic electrolytic solution includes a lithium salt; an organic solvent containing a high dielectric constant solvent; and a polymerizable cycloolefin monomer, and an lithium battery employing the same. The organic electrolytic solution prevents decomposition of an electrolyte, and thus the lithium battery employing the organic electrolytic solution has improved cycle characteristics and lifetime.
    Type: Grant
    Filed: September 4, 2008
    Date of Patent: August 12, 2014
    Assignee: Samsung SDI Co., Ltd.
    Inventors: Young-gyoon Ryu, Yoon-sok Kang, Dong-joon Lee, Seok-soo Lee, Seung-sik Hwang
  • Publication number: 20140178773
    Abstract: A magnesium compound represented by Formula 1 wherein the magnesium compound is dissolvable in an ether solvent, an electrolyte solution for magnesium batteries that includes the magnesium compound and a magnesium battery including the electrolyte solution are provided: wherein, in Formula 1, X1 is a halogen atom; and at least one of X2 and X3 each independently is an electron withdrawing group, wherein, when X2 or X3 is not an electron withdrawing group, X2 or X3 is a hydrogen atom, a C1-C20 alkyl group, or a C6-C20 aryl group.
    Type: Application
    Filed: July 12, 2013
    Publication date: June 26, 2014
    Inventors: Young-gyoon RYU, Seok-soo LEE, Myung-jin LEE
  • Patent number: 8685572
    Abstract: An organic electrolyte including a lithium salt; an organic solvent; and a flavone-based or flavanon-based compound, and a lithium battery including the organic electrolyte.
    Type: Grant
    Filed: February 2, 2011
    Date of Patent: April 1, 2014
    Assignee: Samsung SDI Co., Ltd.
    Inventors: Dong-joon Lee, Young-gyoon Ryu, Seok-soo Lee, Dong-min Im
  • Patent number: 8632917
    Abstract: An organic electrolyte solution includes a lithium salt; an organic solvent including a high permittivity solvent and a low boiling solvent; and a vinyl-based compound represented by Formula 1 below, wherein m and n are each independently integers of 1 to 10; X1, X2, and X3 each independently represent O, S, or NR9; and R1, R2, R3, R4, R5, R6, R7, R8, and R9 are represented in the detailed description. The organic electrolyte solution of the present invention and a lithium battery using the same suppress degradation of an electrolyte, providing improved cycle properties and life span thereof.
    Type: Grant
    Filed: February 29, 2012
    Date of Patent: January 21, 2014
    Assignee: Samsung SDI Co., Ltd.
    Inventors: Seok-soo Lee, Young-gyonn Ryu, Seung-sik Hwang, Dong-joon Lee, Boris A. Trofimov
  • Patent number: 8568920
    Abstract: An organic electrolytic solution including a lithium salt, an organic solvent, and a linear or cyclic polymerizable monomer that is negatively charged due to localization of electrons on the monomer, and a lithium battery employing the same. Since the organic electrolytic solution prevents decomposition of an electrolyte and elution from or precipitation of metal ions, the lithium battery employing the organic electrolytic solution has excellent lifetime characteristics and cycle characteristics.
    Type: Grant
    Filed: May 7, 2010
    Date of Patent: October 29, 2013
    Assignee: Samsung SDI Co., Ltd.
    Inventors: Dong-joon Lee, Young-gyoon Ryu, Dong-min Im, Seok-soo Lee