Patents by Inventor Jae Whan Cho

Jae Whan Cho 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: 11943976
    Abstract: A display device includes a substrate, a first conductive layer on the substrate, the first conductive layer including a data signal line, a first insulating layer on the first conductive layer, a semiconductor layer on the first insulating layer, the semiconductor layer including a first semiconductor pattern, a second insulating layer on the semiconductor layer, and a second conductive layer on the second insulating layer, the second conductive layer including a gate electrode disposed to overlap the first semiconductor pattern, a transistor first electrode disposed to overlap a part of the first semiconductor pattern, wherein the transistor first electrode is electrically connected to the data signal line through a contact hole that penetrates the first and second insulating layers, and a transistor second electrode disposed to overlap another part of the first semiconductor pattern.
    Type: Grant
    Filed: June 4, 2020
    Date of Patent: March 26, 2024
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Seung Sok Son, Woo Geun Lee, Seul Ki Kim, Kap Soo Yoon, Hyun Woong Baek, Jae Hyun Lee, Su Jung Jung, Jung Kyoung Cho, Seung Ha Choi, June Whan Choi
  • Patent number: 9034232
    Abstract: Provided is a method for manufacturing a sheet for a solar cell encapsulant which has stability against yellowing after a crosslinking process and thus good appearance with improved productivity in the sheet manufacture process, specifically to a method for manufacturing a sheet for a solar cell encapsulant characterized by melt-mixing a resin composition with an organic peroxide, a co-crosslinking agent and a silane coupling agent at the degradation temperature of the organic peroxide or less, wherein the resin composition is obtained by melt-mixing EVA resin with an antioxidant, an UV absorber and a light stabilizer at 80-220° C., and forming a sheet from the obtained melt-mixed resin composition.
    Type: Grant
    Filed: April 28, 2011
    Date of Patent: May 19, 2015
    Assignee: SAMSUNG TOTAL PETROCHEMICALS CO., LTD.
    Inventors: Jae Whan Cho, Jae Hyuck Han, Goo Hyeong Lee, Kyung Hyun Kim
  • Publication number: 20120168982
    Abstract: Provided is a method for manufacturing a sheet for a solar cell encapsulant which has stability against yellowing after a crosslinking process and thus good appearance with improved productivity in the sheet manufacture process, specifically to a method for manufacturing a sheet for a solar cell encapsulant characterized by melt-mixing a resin composition with an organic peroxide, a co-crosslinking agent and a silane coupling agent at the degradation temperature of the organic peroxide or less, wherein the resin composition is obtained by melt-mixing EVA resin with an antioxidant, an UV absorber and a light stabilizer at 80-220° C., and forming a sheet from the obtained melt-mixed resin composition.
    Type: Application
    Filed: April 28, 2011
    Publication date: July 5, 2012
    Applicant: SAMSUNG TOTAL PETROCHEMICALS CO., LTD.
    Inventors: Jae Whan Cho, Jae Hyuck Han, Goo Hyeong Lee, Kyung Hyun Kim
  • Patent number: 7208536
    Abstract: The present invention provides a propylene resin composition having excellent anti-scratch characteristic. Specifically, provided is a polyolefin resin composition comprising a high crystalline polypropylene resin, a rubber component, an inorganic filler and an aluminosiloxane masterbatch, with excellent damage resistance such as anti-scratch characteristic thereby giving very low surface damage, excellent heat resistance, good rigidity and impact properties and injection moldability, for car interior or exterior parts.
    Type: Grant
    Filed: February 17, 2006
    Date of Patent: April 24, 2007
    Assignee: Samsung Total Petrochemicals Co., Ltd.
    Inventors: Jae Gon Lim, Young Sung Yoo, Jae Whan Cho, Man Saeng Her
  • Publication number: 20060252870
    Abstract: The present invention provides a method for preparation of polyolefin nanocomposite, specifically to a method in which polyolefin nanocomposite can be prepared in rather simple, efficient and economic way, through a single step without any pretreatment for modifying the polyolefin resin used as a matrix for the nanocomposite.
    Type: Application
    Filed: September 16, 2005
    Publication date: November 9, 2006
    Applicant: Samsung Total Petrochemicals Co., Ltd.
    Inventors: Ki-Do Lee, Jae-Whan Cho, Man-Saeng Her
  • Publication number: 20060229387
    Abstract: The present invention provides a propylene resin composition having excellent anti-scratch characteristic. Specifically, provided is a polyolefin resin composition comprising a high crystalline polypropylene resin, a rubber component, an inorganic filler and an aluminosiloxane masterbatch, with excellent damage resistance such as anti-scratch characteristic thereby giving very low surface damage, excellent heat resistance, good rigidity and impact properties and injection moldability, for car interior or exterior parts.
    Type: Application
    Filed: February 17, 2006
    Publication date: October 12, 2006
    Applicant: SAMSUNG TOTAL PETROCHEMICALS CO., LTD.
    Inventors: Jae-Whan Cho, Man-Saeng Her, Jae Lim, Young-Sung Yoo
  • Patent number: 6906127
    Abstract: Nylon-intercalated (concentrate nylon), layered silicates, in concentrated form, containing at least 6% to about 40% by weight layered silicate, preferably about 8% to about 30% by weight layered silicate, intercalated with a nylon that is polymerized while in contact with the clay, during ring-opening polymerization of the nylon reactants (monomers) and melt processing. The in-situ nylon polymerization reaction to form the concentrate nylon is continued until the number average molecular weight (Mn) of the nylon is about 25,000 or less, preferably 15,000 or less, more preferably about 5,000-10,000, to maintain melt processability of the resulting concentrate.
    Type: Grant
    Filed: August 8, 2002
    Date of Patent: June 14, 2005
    Assignee: AMCOL International Corporation
    Inventors: Ying Liang, Tie Lan, Scott Omachinski, Jae Whan Cho
  • Publication number: 20040030020
    Abstract: Nylon-intercalated (concentrate nylon), layered silicates, in concentrated form, containing at least 6% to about 40% by weight layered silicate, preferably about 8% to about 30% by weight layered silicate, intercalated with a nylon that is polymerized while in contact with the clay, during ring-opening polymerization of the nylon reactants (monomers) and melt processing. The in-situ nylon polymerization reaction to form the concentrate nylon is continued until the number average molecular weight (Mn) of the nylon is about 25,000 or less, preferably 15,000 or less, more preferably about 5,000-10,000, to maintain melt processability of the resulting concentrate.
    Type: Application
    Filed: August 8, 2002
    Publication date: February 12, 2004
    Inventors: Ying Liang, Tie Lan, Scott Omachinski, Jae Whan Cho
  • Patent number: 6632868
    Abstract: A nanocomposite concentrate composition comprising about 10 weight percent to about 90 weight percent of a layered silicate material and about 10 weight percent to about 90 weight percent of a matrix polymer comprising about 90-99.8% by weight of a polyolefin and about 0.2% to about 10%, preferably about 0.2% to about 3%, more preferably about 1% to 3% by weight, of a maleic anhydride-modified polyolefin, based on the total weight of polyolefins, wherein the layered silicate material is dispersed uniformly throughout the matrix polymer. Shearing of the concentrate and later (after shear) addition of an added matrix polymer avoids thermal degradation of the added matrix polymer and optimizes the dispersion of the nanomer throughout the matrix polymer; provides increased tensile strength; and reduces degradation of the polymer by melt formation of a concentrate thereby decreasing heat degradation of added matrix polymer.
    Type: Grant
    Filed: April 25, 2001
    Date of Patent: October 14, 2003
    Assignee: Amcol International Corporation
    Inventors: Guoqiang Qian, Jae Whan Cho, Tie Lan
  • Publication number: 20010033924
    Abstract: A nanocomposite concentrate composition comprising about 10 weight percent to about 90 weight percent of a layered silicate material and about 10 weight percent to about 90 weight percent of a matrix polymer comprising about 90-99.8% by weight of a polyolefin and about 0.2% to about 10%, preferably about 0.2% to about 3%, more preferably about 1% to 3% by weight, of a maleic anhydride-modified polyolefin, based on the total weight of polyolefins, wherein the layered silicate material is dispersed uniformly throughout the matrix polymer. Shearing of the concentrate and later (after shear) addition of an added matrix polymer avoids thermal degradation of the added matrix polymer and optimizes the dispersion of the nanomer throughout the matrix polymer; provides increased tensile strength; and reduces degradation of the polymer by melt formation of a concentrate thereby decreasing heat degradation of added matrix polymer.
    Type: Application
    Filed: April 25, 2001
    Publication date: October 25, 2001
    Inventors: Guoqiang Qian, Jae Whan Cho, Tie Lan