Patents by Inventor Kyu Tae Park

Kyu Tae Park 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: 9425054
    Abstract: A method for fabricating a semiconductor device includes: preparing a substrate; performing a pre-treatment including a first hydrogen annealing on a surface of the substrate; forming a gate dielectric layer over the substrate; performing a post-treatment including a second hydrogen annealing on the substrate including the gate dielectric layer; and forming a gate electrode over the gate dielectric layer.
    Type: Grant
    Filed: September 24, 2014
    Date of Patent: August 23, 2016
    Assignee: SK Hynix Inc.
    Inventors: Tae-Hyeok Lee, Kyu-Tae Park
  • Publication number: 20160222157
    Abstract: A polyester resin copolymerized with isosorbide and 1,4-cyclohexane dimethanol and having an improved impact strength, and a method for preparing the same are disclosed. The copolymerized polyester resin has an alternating structure of acid moieties which are derived from acid components and diol moieties which are derived from diol components, wherein the acid components comprise terephthalic acid, and the diol components comprise (i) 5˜99 mol % of 1,4-cyclohexanedimethanol and (ii) 1˜60 mol % of isosorbide with respect to the total diol components.
    Type: Application
    Filed: April 14, 2016
    Publication date: August 4, 2016
    Inventors: Roy Lee, Jong-Ryang Kim, Jae-Bong Lim, Won-Jae Yoon, Dong-Jin Kim, Kyu-Tae Park, Yoo-Jin Lee
  • Publication number: 20160146677
    Abstract: A temperature sensor includes a first current generating circuit configured to generate a first current being constant regardless of temperature changes, a cascode circuit configured to generate a cascode voltage, a second current generating circuit configured to generate a second current being in inverse proportion to temperature, and a compensated voltage output circuit configured to output a compensated voltage having various temperature coefficients in response to the first current and the second current.
    Type: Application
    Filed: April 24, 2015
    Publication date: May 26, 2016
    Inventors: Kyu Tae PARK, Marco PASSERINI
  • Patent number: 9328195
    Abstract: Disclosed is a method for preparing a polyester resin, wherein phosphate additives are used in preparing polyester resin to improve the reactive property of the esterification reaction or transesterification, as well as the flame retardancy property and the color stability of a polyester resin. The method for preparing a polyester resin comprises the steps of: carrying out an esterification reaction and/or an ester exchange reaction of a diacid component and a diol component in a presence of phosphoric acid derivatives, wherein the diol component comprises a primary diol and isosorbide, and wherein a reaction time of the esterification reaction or the ester exchange reaction is reduced and the remaining rate of isosorbide in the main chain of the polyester resin is increased.
    Type: Grant
    Filed: December 23, 2009
    Date of Patent: May 3, 2016
    Assignee: SK CHEMICALS CO., LTD.
    Inventors: Kyu-Tae Park, Yoo-Jin Lee, Jong-Ryang Kim, Sin-Young Hwang
  • Publication number: 20150380253
    Abstract: A method for fabricating a semiconductor device includes: preparing a substrate; performing a pre-treatment including a first hydrogen annealing on a surface of the substrate; forming a gate dielectric layer over the substrate; performing a post-treatment including a second hydrogen annealing on the substrate including the gate dielectric layer; and forming a gate electrode over the gate dielectric layer.
    Type: Application
    Filed: September 24, 2014
    Publication date: December 31, 2015
    Inventors: Tae-Hyeok LEE, Kyu-Tae PARK
  • Publication number: 20150185409
    Abstract: Provided is a backlight assembly including: a light source which generates and emits light; a light leakage preventing member including a first horizontal portion and a first vertical portion; a light guide plate including a light input surface and a light output surface; an optical sheet disposed on the light output surface of the light guide plate; and a bottom chassis configured to receive the light source, the light leakage preventing member and the light guide plate therein, in which the light source is disposed at a side of the light guide plate, the first vertical portion of the light leakage preventing member is attached to a rear surface of the light source, and the first horizontal portion is positioned above the light source to overlap a portion of the light output surface of the light guide plate.
    Type: Application
    Filed: December 29, 2014
    Publication date: July 2, 2015
    Inventors: Sung-Won KIM, Kyu-Tae PARK, Hyun Chul JEONG
  • Patent number: 8993676
    Abstract: A blend of polylactic acid resin and copolyester resin, which has excellent impact resistance and heat resistance, and a molded article manufactured using the same are disclosed. The blend of polylactic acid resin and copolyester resin, comprises 5 to 94 wt % of a polylactic acid resin; 3 to 92 wt % of a copolyester resin comprising a dicarboxylic acid component, which contains a terephthalic acid residue, and a diol component which contains 3 to 99 mol % of a cyclohexanedimethanol residue and 1 to 60 mol % of an isosorbide residue; and 3-30 wt % of a compatibilizer containing at least one reactive functional group selected from the group consisting of glycidyl, maleic anhydride, epoxy, isocyanate, amino, carboxylic acid and oxazoline groups, and mixtures thereof.
    Type: Grant
    Filed: November 13, 2012
    Date of Patent: March 31, 2015
    Assignee: SK Chemicals Co., Ltd.
    Inventors: Kyu-Tae Park, Jong-Ryang Kim, Jong-Wook Shin, Min-Goo Kang
  • Publication number: 20140288241
    Abstract: A blend of polylactic acid resin and copolyester resin, which has excellent impact resistance and heat resistance, and a molded article manufactured using the same are disclosed. The blend of polylactic acid resin and copolyester resin, comprises 5 to 94 wt % of a polylactic acid resin; 3 to 92 wt % of a copolyester resin comprising a dicarboxylic acid component, which contains a terephthalic acid residue, and a diol component which contains 3 to 99 mol % of a cyclohexanedimethanol residue and 1 to 60 mol % of an isosorbide residue; and 3-30 wt % of a compatibilizer containing at least one reactive functional group selected from the group consisting of glycidyl, maleic anhydride, epoxy, isocyanate, amino, carboxylic acid and oxazoline groups, and mixtures thereof.
    Type: Application
    Filed: November 13, 2012
    Publication date: September 25, 2014
    Inventors: Kyu-Tae Park, Jong-Ryang Kim, Jong-Wook Shin, Min-Goo Kang
  • Patent number: 8684478
    Abstract: A food container and a refrigerator including a food container capable of simultaneously separating fixing members of a cover according to sliding of a handle and of taking out of food kept therein by opening an auxiliary cover even with a main cover being closed. The food container includes a main body having an entrance formed on a topside thereof, a cover opening and closing the entrance, a plurality of fixing members including one end rotatably secured to a side surface of the main body and the other end detachably connected with an edge part of the cover, to secure the cover to the main body selectively, and a handle sliding-movable on a top surface of the cover and contactable with the plurality of the fixing members, to push the plurality of the fixing members according to the sliding to unlock the securing between the cover and the main body.
    Type: Grant
    Filed: January 13, 2011
    Date of Patent: April 1, 2014
    Assignee: LG Electronics Inc.
    Inventors: Kyu Tae Park, Hong Sik Kwon, Kyeong Chul Cho, Seon Il Yu
  • Publication number: 20140043848
    Abstract: A backlight device according to an exemplary embodiment of the present invention includes, wherein a light guide plate including a convex portion and a recess portion, a lower cover including a lateral surface cover part positioned adjacent to the convex portion, the lower cover surrounding the light guide plate, and a fixing member positioned between the light guide plate and the lateral surface cover part of the lower cover, in which the lateral cover part includes an opening, and the fixing member includes a first hook surrounding the convex portion and a second hook protruding through the opening of the lateral surface cover part.
    Type: Application
    Filed: May 21, 2013
    Publication date: February 13, 2014
    Inventors: Mi-Young JUNG, Jae Sang Lee, Kyu-Tae Park, Yong Hun Jung, Sung Yeon Hwang, Min Woo Lee
  • Publication number: 20130127321
    Abstract: A food container and a refrigerator including the same are disclosed. The present invention relates to a food container capable of simultaneously separating fixing members (50, 60, 70) of a cover according to sliding of a handle and of taking out of food kept therein by opening an auxiliary cover (90) even in a state of a main cover being closed, only to be usable conveniently, and a refrigerator including the food container.
    Type: Application
    Filed: January 13, 2011
    Publication date: May 23, 2013
    Inventors: Kyu Tae Park, Hong Sik Kwon, Kyeong Chul Cho, Seon Il Yu
  • Publication number: 20130115438
    Abstract: The present invention relates to polyarylene sulfide, in which a ratio of a peak area of a polymer chain of a second polyarylene sulfide having a lower molecular weight than the maximum peak molecular weight to a peak area of a polymer chain of a first polyarylene sulfide having a higher molecular weight than the maximum peak molecular weight is 1.3 or less in the molecular weight distribution of the polyarylene sulfide, as measured by gel permeation chromatography using polystyrene as a standard, and a preparation method thereof. This polyarylene sulfide exhibits excellent processability and generates no burrs (flashes) or the like, and can satisfactorily mold a product requiring high molding precision.
    Type: Application
    Filed: May 6, 2011
    Publication date: May 9, 2013
    Applicant: SK Chemical Co., Ltd.
    Inventors: Kyu-Tae Park, Sung-Gi Kim, Jae-Bong Lim, Il-Hoon Cha, Se-Ho Lee
  • Patent number: 8322805
    Abstract: Disclosed is a refrigerator. The refrigerator includes a cabinet configured to define an exterior boundary of the refrigerator with at least one opening therein. The refrigerator also includes a storage chamber defined by interior walls of the cabinet and configured to store food stuffs. The refrigerator further includes a door configured to open and close an access point to the storage chamber by rotating about a rotational axis. In addition, the refrigerator includes a supporting member positioned at the storage chamber and configured to be moved in connection with opening and closing of the door.
    Type: Grant
    Filed: June 2, 2010
    Date of Patent: December 4, 2012
    Assignee: LG Electronics Inc.
    Inventors: Hong Sik Kwon, Kyu Tae Park, Kyeong Chul Cho, Seon Il Yu
  • Publication number: 20110269933
    Abstract: Disclosed is a method for preparing a polyester resin, wherein phosphate additives are used in preparing polyester resin to improve the reactive property of the esterification reaction or transesterification, as well as the flame retardancy property and the color stability of a polyester resin. The method for preparing a polyester resin comprises the steps of: esterification reacting and/or transesterifying diacid ingredients diol ingredients in the presence of one or more phosphate additives selected from the group consisting of the compounds as defined in Chemicals in the detailed description of the invention; and polycondensing the products obtained from the esterification reaction and/or transesterification.
    Type: Application
    Filed: December 23, 2009
    Publication date: November 3, 2011
    Applicant: SK CHEMICALS CO., LTD.
    Inventors: Kyu-Tae Park, Yoo-Jin Lee, Jong-Ryang Kim, Sin-Young Hwang
  • Publication number: 20110251342
    Abstract: The present invention relates to a method for preparing a polyester resin in which isosorbide is copolymerized, and more particularly, to a method for preparing a copolymerized polyester resin containing isosorbide, comprising the steps of: adding glycols containing ethylene glycol and isosorbide to terephthalic acid or dimethyl terephthalate such that the feed molar ratio of total glycols to terephthalic acid or dimethyl terephthalate is 1.05 to 3.0 to allow an esterification reaction; and polycondensing the esterification product using titanium-based compounds of copolymers of titanium dioxide and silicon dioxide, and copolymers of titanium dioxide and zirconium dioxide, as a copolymerization catalyst, and using phosphorous compounds as a stabilizer. The copolymerized polyester resin containing isosorbide prepared according to the present invention exhibits superior reactive properties and productivity, and reduces the quantity of metal used as a catalyst and improves the clarity of a polymer.
    Type: Application
    Filed: December 9, 2009
    Publication date: October 13, 2011
    Applicant: SK CHEMICALS CO., LTD.
    Inventors: Kyu Tae Park, Jong Ryang Kim
  • Patent number: D674414
    Type: Grant
    Filed: January 19, 2012
    Date of Patent: January 15, 2013
    Assignee: LG Electronics Inc.
    Inventors: Hang Bok Lee, Kyung Soo Park, Seon Kyu Kim, Hyok Ku Kwon, Kyu Tae Park
  • Patent number: D674415
    Type: Grant
    Filed: January 19, 2012
    Date of Patent: January 15, 2013
    Assignee: LG Electronics Inc.
    Inventors: Hang Bok Lee, Kyung Soo Park, Seon Kyu Kim, Hyok Ku Kwon, Kyu Tae Park
  • Patent number: D681695
    Type: Grant
    Filed: January 19, 2012
    Date of Patent: May 7, 2013
    Assignee: LG Electronics Inc.
    Inventors: Hang Bok Lee, Kyung Soo Park, Seon Kyu Kim, Hyok Ku Kwon, Kyu Tae Park
  • Patent number: D686644
    Type: Grant
    Filed: January 27, 2012
    Date of Patent: July 23, 2013
    Assignee: LG Electronics Inc.
    Inventors: Hang Bok Lee, Kyung Soo Park, Seon Kyu Kim, Hyok Ku Kwon, Kyu Tae Park
  • Patent number: D695796
    Type: Grant
    Filed: July 12, 2012
    Date of Patent: December 17, 2013
    Assignee: LG Electronics Inc.
    Inventors: Hang Bok Lee, Seon Kyu Kim, Hyok Ku Kwon, Kyu Tae Park