Patents by Inventor Hun CHEONG

Hun CHEONG 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).

  • Publication number: 20240140798
    Abstract: Provided is a method for preparing silicon nitride powder for manufacturing a substrate. The method for preparing silicon nitride powder for manufacturing a substrate, according to an embodiment of the present invention, comprises the steps of: preparing mixed raw material powder comprising metallic silicon powder and crystalline phase control powder; preparing the mixed raw material powder into granules having a predetermined particle size; nitrifying the granules at a predetermined temperature ranging from 1,200-1,500° C. while nitrogen gas is applied to the granules at a predetermined pressure; and pulverizing the nitrified granules. According to the method, it is easy to realize powder having an ? crystal phase at a desired level, and when this is realized as a substrate, a substrate having compact density can be manufactured.
    Type: Application
    Filed: March 18, 2022
    Publication date: May 2, 2024
    Inventors: Kyu Hwan PARK, Hun CHEONG
  • Publication number: 20240116822
    Abstract: A method for manufacturing a silicon nitride substrate is provided. The method comprises the steps of: preparing a ceramic composition containing a metal silicon powder and a crystalline phase control powder containing a rare earth element-containing compound and a magnesium-containing compound; manufacturing a sheet-shaped molded body of a slurry prepared by mixing a solvent and an organic binder with the ceramic composition; and performing heat treatment including a nitrification section where heat treatment is performed at a first temperature in the range of 1300-1500° C. together with the application of nitrogen gas to the molded body at a predetermined pressure and a sintering section where heat treatment is performed at a second temperature in the range of 1700-1900° C.
    Type: Application
    Filed: May 3, 2022
    Publication date: April 11, 2024
    Applicant: AMOTECH CO., LTD.
    Inventors: Kyu Hwan PARK, Hun CHEONG
  • Publication number: 20230079686
    Abstract: Provided is a semiconductor package with improved reliability. The semiconductor package includes: a plurality of connection terminals on a first surface of the semiconductor device; a protection member on the first surface of the semiconductor device and partially covers side surfaces of the plurality of connection terminals such that the protective member exposes lower surfaces of the plurality of connection terminals; and a mold member that covers a side surface of the semiconductor device and a portion of the protection member such that the mold member does not cover the lower surfaces of the plurality of connection terminals.
    Type: Application
    Filed: April 11, 2022
    Publication date: March 16, 2023
    Applicant: Samsung Electronics Co., Ltd.
    Inventors: Young Hun CHEONG, Young Lyong KIM, Cheol Soo HAN
  • Patent number: 10619221
    Abstract: A biomarker composition includes, as an active ingredient, one or at least two polypeptides having 5 to 120 consecutive amino acids that are selected from the group consisting of an amino acid in which serine (S) at the 56th position is substituted with leucine (L), an amino acid in which serine (S) at the 8th position is substituted with asparagines (N), an amino acid in which threonine (T) at the 81st position is substituted with alanine (A), an amino acid in which valine (V) at the 88th position is substituted with alanine (A), an amino acid in which glycine (G) at the 117th position is substituted with asparatic acid (D), and an amino acid in which glutamic acid (E) at the 119th position is substituted with lysine (K), within an amino acid sequence of VHSV represented by SEQ ID NO: 1.
    Type: Grant
    Filed: April 12, 2017
    Date of Patent: April 14, 2020
    Assignee: REPUBLIC OF KOREA (NATIONAL FISHERIES RESEARCH AND DEVELOPMENT INSTITUTE)
    Inventors: Jae Hun Cheong, Hyun Kook Cho, Mi So Seong, Mi Young Cho, Myoung Ae Park, Bo-Young Jee, Seong Don Hwang, Jee Youn Hwang
  • Patent number: 10427939
    Abstract: The present invention provides method for producing a spherical aluminum nitride powder. In an embodiment, the method comprises mixing an Al precursor and a flux in a solvent to produce a mixed solution, spray-drying the mixed solution to form a spray-dried powder, mixing the spray-dried powder and a carbon-based material to form a mixture, heat treating the mixture in a nitrogen atmosphere to form a heat-treated compound, and decarbonizing the heat-treated compound in an air atmosphere, wherein the flux is at least one selected from the group consisting of Cu2O, TiO2, Bi2O3, and CuO, or a mixture of at least one selected from the group consisting of Cu2O, TiO2, Bi2O3, and CuO and at least one selected from the group consisting of CaF2 and Y2O3.
    Type: Grant
    Filed: March 7, 2019
    Date of Patent: October 1, 2019
    Assignee: LG Chem, Ltd.
    Inventors: Han Nah Jeong, Donghwan Kim, Shin Hee Jun, Myounghwan Oh, Haejong Jung, Sang Hun Cheong
  • Publication number: 20190202697
    Abstract: The present invention provides method for producing a spherical aluminum nitride powder. In an embodiment, the method comprises mixing an Al precursor and a flux in a solvent to produce a mixed solution, spray-drying the mixed solution to form a spray-dried powder, mixing the spray-dried powder and a carbon-based material to form a mixture, heat treating the mixture in a nitrogen atmosphere to form a heat-treated compound, and decarbonizing the heat-treated compound in an air atmosphere, wherein the flux is at least one selected from the group consisting of Cu2O, TiO2, Bi2O3, and CuO, or a mixture of at least one selected from the group consisting of Cu2O, TiO2, Bi2O3, and CuO and at least one selected from the group consisting of CaF2 and Y2O3.
    Type: Application
    Filed: March 7, 2019
    Publication date: July 4, 2019
    Applicant: LG Chem, Ltd.
    Inventors: Han Nah Jeong, Donghwan Kim, Shin Hee Jun, Myounghwan Oh, Haejong Jung, Sang Hun Cheong
  • Publication number: 20180251861
    Abstract: A biomarker composition includes, as an active ingredient, one or at least two polypeptides having 5 to 120 consecutive amino acids that are selected from the group consisting of an amino acid in which serine (S) at the 56th position is substituted with leucine (L), an amino acid in which serine (S) at the 8th position is substituted with asparagines (N), an amino acid in which threonine (T) at the 81st position is substituted with alanine (A), an amino acid in which valine (V) at the 88th position is substituted with alanine (A), an amino acid in which glycine (G) at the 117th position is substituted with asparatic acid (D), and an amino acid in which glutamic acid (E) at the 119th position is substituted with lysine (K), within an amino acid sequence of VHSV represented by SEQ ID NO: 1.
    Type: Application
    Filed: April 12, 2017
    Publication date: September 6, 2018
    Applicant: REPUBLIC OF KOREA (NATIONAL FISHERIES RESEARCH AND DEVELOPMENT INSTITUTE)
    Inventors: Jae Hun CHEONG, Hyun Kook CHO, Mi So SEONG, Mi Young CHO, Myoung Ae PARK, Bo-Young JEE, Seong Don HWANG, Jee Youn HWANG
  • Patent number: 9034327
    Abstract: Disclosed are novel GPCR (G Protein Coupled Receptor) proteins and genes encoding the same. Also provided is the use of the proteins and the genes. Particularly, contemplated are a novel GPCR (G Protein Coupled Receptor) polypeptide, a polynucleotide coding for the same, a recombinant vector carrying the polynucleotide or a fragment thereof, host cells transformed with the vector, a transgenic animal infected with the vector. Also, a composition for detecting a cancer marker, comprising an agent capable of measuring the expression level of mRNA or protein of the GPCR polynucleotide, a kit for the diagnosis of cancer, comprising the composition, and a method for detecting the GPCR polypeptide and a gene encoding the polypeptide are provided.
    Type: Grant
    Filed: September 7, 2009
    Date of Patent: May 19, 2015
    Assignee: Korea Research Institute of Bioscience and Biotechnology
    Inventors: Kyung Sook Chung, Mi Sun Won, Ji Won Ahn, Jeong Hae Choi, Hyang Sook Yoo, Young Il Yeom, Eun Young Song, Hee Gu Lee, Jae Hun Cheong, Chang Mo Kang
  • Publication number: 20120141488
    Abstract: Disclosed are novel GPCR (G Protein Coupled Receptor) proteins and genes encoding the same. Also provided is the use of the proteins and the genes. Particularly, contemplated are a novel GPCR (G Protein Coupled Receptor) polypeptide, a polynucleotide coding for the same, a recombinant vector carrying the polynucleotide or a fragment thereof, host cells transformed with the vector, a transgenic animal infected with the vector. Also, a composition for detecting a cancer marker, comprising an agent capable of measuring the expression level of mRNA or protein of the GPCR polynucleotide, a kit for the diagnosis of cancer, comprising the composition, and a method for detecting the GPCR polypeptide and a gene encoding the polypeptide are provided.
    Type: Application
    Filed: September 7, 2009
    Publication date: June 7, 2012
    Applicant: KOREA RESEARCH INSTITUTE OF BIOSCIENCE AND BIOTECH
    Inventors: Kyung Sook Chung, Mi Sun Won, Ji Won Ahn, Jeong Hae Choi, Hyang Sook Yoo, Young Il Yeom, Eun Young Song, Hae Gu Lee, Jae Hun Cheong, Chang Mo Kang