Patents by Inventor Hak Mook Kim

Hak Mook 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: 11937462
    Abstract: An electroluminescent display device includes an electroluminescent display device includes a substrate; a first pixel row on the substrate including a first plurality of pixels arranged along a first direction; a second pixel row on the substrate including a second plurality of pixels arranged along the first direction, the second pixel row being spaced apart from the first pixel row in a second direction; a first groove between the first and second pixel rows; and a light emitting diode in each pixel of the first and second pixel rows, wherein the first groove includes a first portion at one end of the first pixel row, a second portion at the other end of the first pixel row and a third portion between the first and second portions, and wherein third portion is smaller than the first portion and greater than the second portion.
    Type: Grant
    Filed: February 23, 2022
    Date of Patent: March 19, 2024
    Assignee: LG DISPLAY CO., LTD.
    Inventors: Jeong-Mook Choi, Nack-Youn Jung, Hee-Jin Kim, Hak-Min Lee, Myung-O Joo, Sung-Soo Park
  • Patent number: 11396636
    Abstract: Proposed is a mineral lubricating base oil having improved low-temperature performance, in which the lubricating base oil has kinematic viscosity of 9.0 cSt or less (at 40° C.), kinematic viscosity of 2.5 cSt or less (at 100° C.), and a pour point of ?50° C. or less.
    Type: Grant
    Filed: September 24, 2019
    Date of Patent: July 26, 2022
    Assignee: SK INNOVATION CO., LTD.
    Inventors: Seung Eon Lee, Hak Mook Kim, Jin Hee Ok, Kyung Seok Noh, Jun Soo Park, Yong Rae Cho
  • Patent number: 11352580
    Abstract: Disclosed is a mineral base oil including 85 to 92 wt % of a paraffinic hydrocarbon and 8 to 15 wt % of a naphthenic hydrocarbon and having a Noack volatility of 10 to 12 wt % and a viscosity index of 132 to 142.
    Type: Grant
    Filed: January 22, 2020
    Date of Patent: June 7, 2022
    Assignees: SK INNOVATION CO., LTD, SK LUBRICANTS CO., LTD.
    Inventors: Hak Mook Kim, Kang Min Jung, Kyung Seok Noh, Yong Rae Cho
  • Patent number: 11225616
    Abstract: Disclosed is a method of producing a lubricating base oil, including providing a feedstock including a diesel fraction, subjecting the feedstock to catalytic dewaxing, and recovering a lubricating base oil from a product of the catalytic dewaxing. A lubricating base oil produced thereby and a lubricant product including the lubricating base oil are also provided.
    Type: Grant
    Filed: July 6, 2020
    Date of Patent: January 18, 2022
    Assignees: SK INNOVATION CO., LTD, SK LUBRICANTS CO., LTD.
    Inventors: Seung Eon Lee, Hak Mook Kim, Jin Hee Ok
  • Publication number: 20210403823
    Abstract: Proposed is a mineral lubricating base oil having improved low-temperature performance, in which the lubricating base oil has kinematic viscosity of 9.0 cSt or less (at 40° C.), kinematic viscosity of 2.5 cSt or less (at 100° C.), and a pour point of ?50° C. or less.
    Type: Application
    Filed: September 24, 2019
    Publication date: December 30, 2021
    Applicants: SK INNOVATION CO., LTD., SK LUBRICANTS CO., LTD.
    Inventors: Seung Eon LEE, Hak Mook KIM, Jin Hee OK, Kyung Seok NOH, Jun Soo PARK, Yong Rae CHO
  • Publication number: 20210087477
    Abstract: Disclosed is a method of producing a lubricating base oil, including providing a feedstock including a diesel fraction, subjecting the feedstock to catalytic dewaxing, and recovering a lubricating base oil from a product of the catalytic dewaxing. A lubricating base oil produced thereby and a lubricant product including the lubricating base oil are also provided.
    Type: Application
    Filed: July 6, 2020
    Publication date: March 25, 2021
    Inventors: Seung Eon LEE, Hak Mook KIM, Jin Hee OK
  • Publication number: 20200291321
    Abstract: Disclosed is a mineral base oil including 85 to 92 wt % of a paraffinic hydrocarbon and 8 to 15 wt % of a naphthenic hydrocarbon and having a Noack volatility of 10 to 12 wt % and a viscosity index of 132 to 142.
    Type: Application
    Filed: January 22, 2020
    Publication date: September 17, 2020
    Inventors: Hak Mook KIM, Kang Min JUNG, Kyung Seok NOH, Yong Rae CHO
  • Patent number: 9714209
    Abstract: A method for preparing an estolide compound and an estolide compound prepared thereby are disclosed. The method for preparing an estolide compound includes: converting biomass fat into a fatty acid; separating the fatty acid into a C16 saturated fatty acid and a C18 unsaturated fatty acid; preparing a linear internal olefin (LIO); increasing an amount of oleic acid through partial hydrogenation of the C18 unsaturated fatty acid; synthesizing an estolide polymer through cross metathesis of the oleic acid; capping the C16 saturated fatty acid onto the estolide polymer; and reacting the estolide polymer with the linear internal olefin.
    Type: Grant
    Filed: July 7, 2015
    Date of Patent: July 25, 2017
    Assignees: SK Innovation Co., Ltd., SK Lubricants Co., Ltd.
    Inventors: Yong Woo Kim, Hee Jung Jeon, Wan Seop Kwon, Hak Mook Kim, Jin Hee Ok
  • Patent number: 9637701
    Abstract: A method for preparing a ketone group-containing estolide compound and a ketone group-containing estolide compound prepared thereby are disclosed. The method for preparing a ketone group-containing estolide compound includes converting biomass fat into a fatty acid; separating the fatty acid into a C16 saturated fatty acid and a C18 unsaturated fatty acid; increasing an amount of oleic acid through partial hydrogenation of the C18 unsaturated fatty acid; synthesizing a C35 ketone through ketonization of the oleic acid; and performing estolide bonding by capping the C16 saturated fatty acid onto the C35 ketone.
    Type: Grant
    Filed: July 7, 2015
    Date of Patent: May 2, 2017
    Assignees: SK Innovation Co., Ltd., SK Lubricants Co., Ltd.
    Inventors: Yong Woo Kim, Hee Jung Jeon, Wan Seop Kwon, Hak Mook Kim, Jin Hee Ok
  • Publication number: 20160009630
    Abstract: A method for preparing an estolide compound and an estolide compound prepared thereby are disclosed. The method for preparing an estolide compound includes: converting biomass fat into a fatty acid; separating the fatty acid into a C16 saturated fatty acid and a C18 unsaturated fatty acid; preparing a linear internal olefin (LIO); increasing an amount of oleic acid through partial hydrogenation of the C18 unsaturated fatty acid; synthesizing an estolide polymer through cross metathesis of the oleic acid; capping the C16 saturated fatty acid onto the estolide polymer; and reacting the estolide polymer with the linear internal olefin.
    Type: Application
    Filed: July 7, 2015
    Publication date: January 14, 2016
    Inventors: Yong Woo Kim, Hee Jung Jeon, Wan Seop Kwon, Hak Mook Kim, Jin Jee Ok
  • Publication number: 20160009631
    Abstract: A method for preparing a ketone group-containing estolide compound and a ketone group-containing estolide compound prepared thereby are disclosed. The method for preparing a ketone group-containing estolide compound includes converting biomass fat into a fatty acid; separating the fatty acid into a C16 saturated fatty acid and a C18 unsaturated fatty acid; increasing an amount of oleic acid through partial hydrogenation of the C18 unsaturated fatty acid; synthesizing a C35 ketone through ketonization of the oleic acid; and performing estolide bonding by capping the C16 saturated fatty acid onto the C35 ketone.
    Type: Application
    Filed: July 7, 2015
    Publication date: January 14, 2016
    Applicant: SK Lubricants Co., Ltd.
    Inventors: Yong Woo Kim, Hee Jung Jeon, Wan Seop Kwon, Hak Mook Kim, Jin Jee Ok