Patents by Inventor Do Hyun Jin

Do Hyun Jin 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: 8303704
    Abstract: A siloxane based coating composition having excellent dyeability, abrasion resistance, glossiness and transparency, a preparation method thereof, and an optical lens coated by the coating composition are suggested. The siloxane based coating composition includes organo silane compound, inorganic oxide (H-index filler), solvent and a dyeing improving material. The dyeing improving material adopts nitric acid, hydrochloric acid, phosphoric acid, sodium nitrate, potassium nitrate, silver nitrate, or the like. The siloxane based coating composition shows excellent dyeability owing to the dyeing improving material, excellent abrasion resistance owing to the organo silane compound, and excellent glossiness and transparency, so it may be applied as a coating film on a surface of a plastic lens such as optical lens, industrial safety lens and leisure-purpose goggle that require high transparency.
    Type: Grant
    Filed: November 15, 2007
    Date of Patent: November 6, 2012
    Assignee: LG Chem, Ltd.
    Inventors: Sang-Hyuk Im, Do-Hyun Jin, Jong-Pyo Kim, Young-Jun Hong, Seung-Heon Lee
  • Patent number: 7845481
    Abstract: A clutch operating system includes a clutch pedal; a clutch master cylinder that generates hydraulic pressure by operation of the clutch pedal; a clutch release cylinder that operates the clutch by the hydraulic pressure; and a clutch fluid reservoir that stores fluid. The clutch master cylinder includes a cylinder with a wide section, an intermediate section, and a narrow section; a piston in the cylinder, with an intermediate section that fits in the intermediate cylinder section, and a narrow section that fits in the narrow cylinder section; a reservoir fluid line fluidly communicating the clutch fluid reservoir and the clutch master cylinder; an operating fluid line fluidly communicating the clutch release cylinder and the clutch master cylinder; a return spring providing a restoring force to the piston; and a piston rod that delivers movement of a clutch pedal to the piston.
    Type: Grant
    Filed: April 27, 2007
    Date of Patent: December 7, 2010
    Assignee: Kia Motors Corporation
    Inventor: Do Hyun Jin
  • Publication number: 20100064939
    Abstract: A siloxane based coating composition having excellent dyeability, abrasion resistance, glossiness and transparency, a preparation method thereof, and an optical lens coated by the coating composition are suggested. The siloxane based coating composition includes organo silane compound, inorganic oxide (H-index filler), solvent and a dyeing improving material. The dyeing improving material adopts nitric acid, hydrochloric acid, phosphoric acid, sodium nitrate, potassium nitrate, silver nitrate, or the like. The siloxane based coating composition shows excellent dyeability owing to the dyeing improving material, excellent abrasion resistance owing to the organo silane compound, and excellent glossiness and transparency, so it may be applied as a coating film on a surface of a plastic lens such as optical lens, industrial safety lens and leisure-purpose goggle that require high transparency.
    Type: Application
    Filed: November 15, 2007
    Publication date: March 18, 2010
    Applicant: LG CHEM, LTD.
    Inventors: Sang-Hyuk Im, Do-Hyun Jin, Jong-Pyo Kim, Young-Jun Hong, Seung-Heon Lee
  • Publication number: 20080142326
    Abstract: A clutch operating system includes a clutch pedal; a clutch master cylinder that generates hydraulic pressure by operation of the clutch pedal; a clutch release cylinder that operates the clutch by the hydraulic pressure; and a clutch fluid reservoir that stores fluid. The clutch master cylinder includes a cylinder with a wide section, an intermediate section, and a narrow section; a piston in the cylinder, with an intermediate section that fits in the intermediate cylinder section, and a narrow section that fits in the narrow cylinder section; a reservoir fluid line fluidly communicating the clutch fluid reservoir and the clutch master cylinder; an operating fluid line fluidly communicating the clutch release cylinder and the clutch master cylinder; a return spring providing a restoring force to the piston; and a piston rod that delivers movement of a clutch pedal to the piston.
    Type: Application
    Filed: April 27, 2007
    Publication date: June 19, 2008
    Inventor: Do Hyun Jin
  • Publication number: 20070128454
    Abstract: The present invention relates to a silicone-based coating composition with middle and high refractive index, a method of preparing the same, and an optical lens prepared therefrom, and more specifically to a silicone-based coating composition including organosilanes, inorganic oxides having a refractive index of from 1.7 to 3.0, an aluminum acetyl acetone, a C1-C5 alkyl cellosolve, and a solvent, a method of preparing the same, and an optical lens prepared therefrom. The siloxane-based coating composition is transparent, not sticky, and stable for long time storage. Therefore, the coating composition can be applied to a coating layer on a surface of a plastic lens such as an optical lens, an industrial safety lens, or goggles for leisure.
    Type: Application
    Filed: December 1, 2006
    Publication date: June 7, 2007
    Inventors: Sang-Hyuk Im, Do-Hyun Jin, Jong-Pyo Kim, Seung-Heon Lee, Young-Jun Hong
  • Publication number: 20070068421
    Abstract: The present invention relates to a silicone-based coating composition improved adhesion and dyeability, and more specifically, to a silicone-based coating composition prepared by adding a compound(s) having at least one functional group selected from the group consisting of amino, carboxylic acid, mercapto, methylol, anhydride, and isocyanate into an organic-inorganic sol prepared by a sol-gel reaction of organosilanes at high temperature, a method of preparing the same, and an optical lens prepared therefrom. The dyeability of the coating composition is improved by conducting sol-gel reaction at high temperature, and the adhesion to the substrate is improved by adding the compound capable of hydrogen bond and condensation reaction. Therefore, the coating layer of the present invention is proper to be applied to a coating layer for a plastic lens such as glasses, an industrial glass, or goggles for leisure because of good dyeability and adhesion to substrate.
    Type: Application
    Filed: December 1, 2006
    Publication date: March 29, 2007
    Inventors: Sang-Hyuk Im, Do-Hyun Jin, Jong-Pyo Kim, Seung-Heon Lee, Young-Jun Hong