Patents by Inventor Tae-Hyun Lee

Tae-Hyun Lee 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: 10647898
    Abstract: Disclosed are an adhesive composition for polarizing plates, a polarizing plate using the same, a method for preparing the same, and an optical member including the same. The adhesive composition includes (A) a (meth)acrylic radical compound, (B) a cationic epoxy compound, (C) a phenoxy resin, and (D) a photoinitiator.
    Type: Grant
    Filed: August 29, 2018
    Date of Patent: May 12, 2020
    Assignee: Cheil Industries, Inc.
    Inventors: Mi Yeon Yu, Tae Hyun Lee, Do Heon Lee, Ik Hwan Cho, In Cheon Han
  • Patent number: 10527767
    Abstract: A composition for protective layers of a polarizing plate includes a photocurable monomer or oligomer having a glass transition temperature (Tg) of about 50° C. or greater, particles, a reactive monomer or oligomer, and an initiator. A polarizing plate includes a polarizer and a protective layer formed from the composition on one or both surfaces of the polarizer. The protective layer has a storage modulus at about 25° C. of greater than about 2000 MPa, as measured at a heating rate of 10° C./min, a temperature of ?50° C. to 100° C., a frequency of 1 Hz, and a strain of 0.5%. An optical display includes the polarizing plate.
    Type: Grant
    Filed: August 27, 2015
    Date of Patent: January 7, 2020
    Assignee: SAMSUNG SDI CO., LTD.
    Inventors: Do Heon Lee, Mi Yeon Yu, Tae Hyun Lee, In Cheon Han
  • Patent number: 10497491
    Abstract: A halogen-free flame-retardant insulation composition including: halogen-free resin serving as base resin; and a flame-retardant agent. The halogen-free resin includes: first polyolefin resin having a melting point of 90 to 170° C.; and second polyolefin resin having a melting point of 50 to 80° C. Content of the flame-retardant agent is 100 to 200 parts by weight with respect to 100 parts by weight of the base resin, and an insulating sample formed of the insulation composition has an elongation rate of 125% or more.
    Type: Grant
    Filed: June 26, 2017
    Date of Patent: December 3, 2019
    Assignee: LS CABLE & SYSTEM LTD.
    Inventors: Ik-Hyun Ryu, Jae-Ik Lee, Won-Suck Lee, Ji-Wook Shin, Tae-Hyun Lee
  • Patent number: 10438716
    Abstract: Provided is an insulation composition having a low dielectric constant and a cable including an insulation layer formed of the insulation composition. More particularly, the present invention relates to an insulation composition for reducing a space charge to increase superimposed impulse breakdown strength when impulse voltages overlap during application of a direct-current (DC) voltage, having a low dielectric constant, and improving impulse breakdown strength, and a cable including an insulation layer formed of the insulation composition.
    Type: Grant
    Filed: February 27, 2017
    Date of Patent: October 8, 2019
    Assignee: LS CABLE & SYSTEM LTD.
    Inventors: Jin Ho Nam, Won Suck Lee, Ik Hyun Ryu, Yi Seul Yang, Hyun Jung Jung, Tae Hyun Lee
  • Publication number: 20190250318
    Abstract: Provided are a polarizing plate and an optical display device comprising the same, wherein the polarizing plate has a polarizing film, a first adhesive layer, a first optical compensation layer, a second adhesive layer, and a second optical compensation layer laminated successively, and elastic modulus measured by a microindenter at 25° C. on the surface of the second optical compensation layer with regard to the polarizing plate is about 100 MPa to about 1000 MPa.
    Type: Application
    Filed: February 27, 2017
    Publication date: August 15, 2019
    Inventors: Woo Jin JEONG, Seung Jun LEE, Tae Hyun LEE
  • Publication number: 20190152824
    Abstract: A system and method for stirring molten material such as glass are provided. To prevent sagging of a cover of a stirring system, a portion where deformation or sagging may significantly occur is suspended by a suspension system, so that local sagging and deformation of the cover is suppressed. As a result, a crack which may occur in the cover is suppressed, and therefore, contamination of the molten material is likewise suppressed.
    Type: Application
    Filed: November 30, 2018
    Publication date: May 23, 2019
    Inventors: Jang-hun An, Tae-woo Jung, JinSoo Kim, Hosoon Lee, Tae-hyun Lee, Se-Yeol Lim
  • Patent number: 10289076
    Abstract: A concierge robot system, a concierge service method, and a concierge robot are provided.
    Type: Grant
    Filed: July 27, 2017
    Date of Patent: May 14, 2019
    Assignee: ROBORUS CO., LTD.
    Inventors: Dae Hoon Kim, Hong Gi Kim, Tae Hyun Lee, Cheul Min Kim, Sang Ki Lee
  • Patent number: 10241249
    Abstract: A polarizing plate includes a polarizer, a bonding layer on an upper surface of the polarizer, a protective film on an upper surface of the bonding layer and having a moisture transmittance of about 30 g/m2·24 hr or less at 40° C. and 90 % relative humidity (RH), and a barrier layer on a lower surface of the polarizer and formed of a barrier layer composition including an alicyclic epoxy resin having a glass transition temperature of about 200° C. or more. The polarizing plate may have a light transmittance variation rate of 3% or less, as calculated by Equation 1: Light transmittance variation rate=|T0?T500|/T0×100??(1), where T0 is an initial light transmittance and T500 is a light transmittance after 500 hours as set forth herein.
    Type: Grant
    Filed: February 16, 2016
    Date of Patent: March 26, 2019
    Assignee: Samsung SDI Co., Ltd.
    Inventors: Do Heon Lee, Tae Hyun Lee, In Cheon Han
  • Publication number: 20190080954
    Abstract: A semiconductor manufacturing apparatus including a transport head that includes a vacuum chuck, the vacuum chuck being configured to vacuum-hold light-emitting element chips; and a vacuum pump that is configured to provide a vacuum pressure to the transport head, wherein the vacuum chuck includes a porous material layer and a buffer layer on the porous material layer, and the buffer layer includes a plurality of protrusions and vacuum holes, the vacuum holes extending from a surface of the buffer layer that contacts the porous material layer to lower surfaces of the protrusions.
    Type: Application
    Filed: February 23, 2018
    Publication date: March 14, 2019
    Inventors: Kyoung-jun Kim, Si-han Kim, Tae-hyun Lee
  • Publication number: 20190080816
    Abstract: Provided is an insulation composition having a low dielectric constant and a cable including an insulation layer formed of the insulation composition. More particularly, the present invention relates to an insulation composition for reducing a space charge to increase superimposed impulse breakdown strength when impulse voltages overlap during application of a direct-current(DC) voltage, having a low dielectric constant, and improving impulse breakdown strength, and a cable including an insulation layer formed of the insulation composition.
    Type: Application
    Filed: February 27, 2017
    Publication date: March 14, 2019
    Inventors: Jin Ho NAM, Won Suck LEE, Ik Hyun RYU, Yi Seul YANG, Hyun Jung JUNG, Tae Hyun LEE
  • Patent number: 10210967
    Abstract: The present invention relates to a power cable. More particularly, the present invention relates to a power cable which is, when compared to the existing power cables, lightweight and includes a watertight layer which improves a corrosion resistance and is effectively suppressed from being peeled since the interlayer adhesiveness thereof is maintained regardless of an externally physical impact and a temperature change.
    Type: Grant
    Filed: May 3, 2016
    Date of Patent: February 19, 2019
    Assignee: LS CABLE & SYSTEM LTD.
    Inventors: Jae Ik Lee, Won Sang Yoo, Kwang Mo Kim, Sung Tae Kang, Tae Hyun Lee
  • Publication number: 20190002745
    Abstract: Disclosed are an adhesive composition for polarizing plates, a polarizing plate using the same, a method for preparing the same, and an optical member including the same. The adhesive composition includes (A) a (meth)acrylic radical compound, (B) a cationic epoxy compound, (C) a phenoxy resin, and (D) a photoinitiator.
    Type: Application
    Filed: August 29, 2018
    Publication date: January 3, 2019
    Inventors: Mi Yeon Yu, Tae Hyun Lee, Do Heon Lee, Ik Hwan Cho, In Cheon Han
  • Publication number: 20180286535
    Abstract: A halogen-free flame-retardant insulation composition including: halogen-free resin serving as base resin; and a flame-retardant agent. The halogen-free resin includes: first polyolefin resin having a melting point of 90 to 170° C.; and second polyolefin resin having a melting point of 50 to 80° C. Content of the flame-retardant agent is 100 to 200 parts by weight with respect to 100 parts by weight of the base resin, and an insulating sample formed of the insulation composition has an elongation rate of 125% or more.
    Type: Application
    Filed: June 26, 2017
    Publication date: October 4, 2018
    Applicant: LS CABLE & SYSTEM LTD.
    Inventors: Ik-Hyun RYU, Jae-Ik LEE, Won-Suck LEE, Ji-Wook SHIN, Tae-Hyun LEE
  • Publication number: 20180158570
    Abstract: The present invention relates to a power cable. More particularly, the present invention relates to a power cable which is, when compared to the existing power cables, lightweight and includes a watertight layer which improves a corrosion resistance and is effectively suppressed from being peeled since the interlayer adhesiveness thereof is maintained regardless of an externally physical impact and a temperature change.
    Type: Application
    Filed: May 3, 2016
    Publication date: June 7, 2018
    Applicant: LS CABLE & SYSTEM LTD.
    Inventors: Jae Ik LEE, Won Sang YOO, Kwang Mo KIM, Sung Tae KANG, Tae Hyun LEE
  • Publication number: 20180136615
    Abstract: A concierge robot system, a concierge service method, and a concierge robot are provided.
    Type: Application
    Filed: July 27, 2017
    Publication date: May 17, 2018
    Inventors: Dae Hoon KIM, Hong Gi KIM, Tae Hyun LEE, Cheul Min KIM, Sang Ki LEE
  • Patent number: 9702080
    Abstract: A clothing dryer having an improved structure of a drainage unit thereof, including: a body; a drum; a base that is disposed at a lower portion of the drum; a first water tub that is mounted on the base to collect condensate water generated when a drying operation is performed; and a plurality of drainage pipes that are combined with one side of the first water tub and cause the condensate water to move, wherein, in order to change a position at which the plurality of drainage pipes and the first water tub are combined with each other, the first water tub is combined with edges of the base so that at least a part of the first water tub is able to be exposed to an outside.
    Type: Grant
    Filed: April 3, 2014
    Date of Patent: July 11, 2017
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Tae Hyun Lee, Seong Min Oak, Do Haeng Kim, Yong Joon Jang, Ju Young Lee
  • Patent number: 9606265
    Abstract: An adhesive composition for polarizing plates, a polarizing plate using the same, and an optical member including the same, the adhesive composition including an epoxy compound, a (meth)acrylic compound, and a polyfunctional thiol compound.
    Type: Grant
    Filed: June 29, 2013
    Date of Patent: March 28, 2017
    Assignee: CHEIL INDUSTRIES, INC.
    Inventors: Tae Hyun Lee, Ik Hwan Cho, Mi Yeon Yu, Do Heon Lee, In Cheon Han
  • Patent number: 9567235
    Abstract: The present invention relates to a solution reaction apparatus and solution reaction method using the same, and more particularly a solution reaction apparatus and a solution reaction method using the same, wherein a reaction vessel is made by using a sealing member, a reaction vessel forming member, and a substrate serving as the bottom part of the reaction vessel so as to cause one side of a reaction solution only to contact the solution, thereby adjusting the temperature of the substrate differently from the temperature of the solution. The solution reaction apparatus of the present invention can control temperature of the substrate and temperature of the reaction solution separately, thereby it can control the temperature of the solution above the boiling point of the solution, and can react the solution while constantly maintaining the concentration of the solution by the solution circulatory device. Accordingly, it has an effect of freely forming various nanostructures on the substrate.
    Type: Grant
    Filed: February 25, 2013
    Date of Patent: February 14, 2017
    Assignee: INJE UNIVERSITY INDUSTRY-ACADEMIC COOPERATION FOUNDATION
    Inventors: Hyuk Hyun Ryu, Jin Tak Jang, Tae Hyun Lee, Hee Bong Oh
  • Patent number: 9434860
    Abstract: An adhesive composition for a polarizing plate, an adhesive film formed from the same, a polarizing plate including the same, and an optical display including the same are disclosed. The adhesive film for a polarizing plate is formed from an adhesive composition including an epoxy compound and a (meth)acrylate compound, and the adhesive film has an FT-IR peak ratio of about 0.015 or lower as defined by Equation 1. Equation 1 FT-IR peak ratio=B/A??(1) In Equation 1, A is the peak height of the peak attributable to the —(C?O)— bond at 1724 cm?1, and B is the peak height of the peak attributable to the —CH?CH— bond at 1636 cm?1.
    Type: Grant
    Filed: April 29, 2015
    Date of Patent: September 6, 2016
    Assignee: Samsung SDI Co., Ltd.
    Inventors: Mi Yeon Yu, Yoo Jin Suh, Do Heon Lee, Seung Hoon Lee, Tae Hyun Lee, Ri Ra Jung, Woo Jin Jeong, In Cheon Han
  • Patent number: D879128
    Type: Grant
    Filed: September 4, 2018
    Date of Patent: March 24, 2020
    Assignee: ROBORUS CO., LTD.
    Inventors: Dae Hoon Kim, Tae Hyun Lee, Sang Ki Lee, Sang In Lee, Jun Sung Park, Hee Jeong Jeong, Chang Bok Lee