Patents by Inventor Jung Su Han

Jung Su Han 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: 20170283599
    Abstract: The present invention relates to a latex composition for dip-forming including two different types of carboxylic acid modified-nitrile based copolymer latex, and a dip-formed article prepared therefrom having excellent durability for sweat, and having high tensile strength and elongation percentage. Accordingly, the latex composition for dip-forming has excellent tensile strength, elongation percentage, stress and durability, and is useful in industries requiring these, for example, a rubber glove industry and the like.
    Type: Application
    Filed: October 20, 2015
    Publication date: October 5, 2017
    Applicant: LG Chem, Ltd.
    Inventors: Yu Jin Cha, Jung Su Han, Ji Hyun Kim, Seung Uk Yeu
  • Patent number: 9771471
    Abstract: Disclosed is a latex composition for dip molding comprising a carboxylic acid-modified nitrile copolymer latex and starch and an article produced therefrom. Advantageously, a dip-molded article having low syneresis, less stickiness and superior tensile strength can be obtained by using the carboxylic acid-modified nitrile latex in conjunction with starch.
    Type: Grant
    Filed: December 18, 2013
    Date of Patent: September 26, 2017
    Assignee: LG CHEM, LTD.
    Inventors: Seung Hun Yang, Byoung Yun Kim, Jung Eun Kim, Seung Uk Yeu, Jung Su Han
  • Patent number: 9574074
    Abstract: Disclosed are a carboxylic acid modified-nitrile based copolymer composition and a dip-formed article produced therefrom. More specifically, disclosed are a copolymer composition comprising a carboxylic acid modified-nitrile copolymer latex having a glass transition temperature of a ?60 to ?10° C. and a carboxylic acid modified-styrene copolymer latex having a glass transition temperature of 30 to 110° C., and a dip-formed article produced therefrom. Provided are advantageously a carboxylic acid modified-nitrile based copolymer composition enabling production of dip-formed articles having physical properties comparable to conventional articles and greatly improved wearing sensation and doping property, and a dip-formed article produced therefrom.
    Type: Grant
    Filed: December 18, 2013
    Date of Patent: February 21, 2017
    Assignee: LG CHEM, LTD.
    Inventors: Jung Su Han, Seung Uk Yeu, Seung Hun Yang
  • Patent number: 9572170
    Abstract: Provided are a method and an apparatus of transceiving a signal using a link adaptation in a communication system, particularly, a method of dividing a resource region into a plurality of resource regions, and applying different line adaptations to the resource regions. A method of controlling a link of a terminal in a mobile communication system receives at least two downlink channel signals to estimate states of received channels, generates a channel discrepancy report when states of channels exceed a preset threshold, and reports the channel discrepancy report to a base station through a preset uplink channel. A method of controlling a link of a base station receives a channel discrepancy report through an uplink channel, and determines MCS and transmission power of downlink channels based on the received channel discrepancy report and transmits the determined MCS and transmission power to the terminal through a downlink channel.
    Type: Grant
    Filed: March 22, 2011
    Date of Patent: February 14, 2017
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Jun Sung Lim, Hi Chan Moon, Chae Man Lim, Jin Ho Kim, Jung Su Han
  • Publication number: 20160272794
    Abstract: Disclosed are a carboxylic acid modified-nitrile based copolymer composition and a dip-formed article produced therefrom. More specifically, disclosed are a copolymer composition comprising a carboxylic acid modified-nitrile copolymer latex having a glass transition temperature of a ?60 to ?10° C. and a carboxylic acid modified-styrene copolymer latex having a glass transition temperature of 30 to 110° C., and a dip-formed article produced therefrom. Provided are advantageously a carboxylic acid modified-nitrile based copolymer composition enabling production of dip-formed articles having physical properties comparable to conventional articles and greatly improved wearing sensation and doping property, and a dip-formed article produced therefrom.
    Type: Application
    Filed: December 18, 2013
    Publication date: September 22, 2016
    Inventors: Jung Su Han, Seung Uk Yeu, Seung Hun Yang
  • Publication number: 20160244575
    Abstract: Disclosed is a carboxylic acid-modified nitrile-based copolymer latex composition, including 0.1-10 parts by weight of a reactive emulsifier based on 100 parts by weight of a monomer mixture, wherein the monomer mixture includes 40-88 wt % of a conjugated diene-based monomer, 10-50 wt % of an ethylenically unsaturated nitrile monomer and 0.1-10 wt % of an ethylenically unsaturated acid monomer. Also disclosed are a method of preparing the carboxylic acid-modified nitrile-based copolymer latex composition and a latex composition for dip molding including the same. The carboxylic acid-modified nitrile-based copolymer latex composition reduces generation of foam through the use of a reactive emulsifier different from the conventional adsorption/desorption type emulsifier, thereby preventing degradation of the quality of latex caused by foam. In addition, the carboxylic acid-modified nitrile-based copolymer latex composition avoids a need for introducing a defoaming agent for removing foam or maturation process.
    Type: Application
    Filed: November 17, 2014
    Publication date: August 25, 2016
    Inventors: Jung Eun KIM, Seung Uk YEU, Jung Su HAN, Seung Hun YANG, Byoung Yun KIM, Hyun Woo KIM, Yu Jin CHA, Ji Hyun KIM
  • Patent number: 9420591
    Abstract: A method for receiving control information by a User Equipment (UE) in a wireless communication system is provided. The method includes monitoring channel quality of a control channel, determining whether reconfiguration of the control channel is needed, based on the channel quality of the control channel, if the reconfiguration of the control channel is needed, requesting an evolved Node B (eNB) to reconfigure the control channel, and receiving the control information through the reconfigured control channel.
    Type: Grant
    Filed: May 2, 2011
    Date of Patent: August 16, 2016
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Jung-Su Han, Hi-Chan Moon, Jun-Sung Lim, Jin-Ho Kim
  • Patent number: 9388302
    Abstract: Provided are a latex for dip molding, a composition for dip molding, a preparation method of a dip molded product, and a dip molded product prepared thereby. The latex for dip molding includes a conjugated diene monomer, an ethylenically unsaturated nitrile monomer, and an ethylenically unsaturated acid monomer, wherein the latex further includes sodium methallyl sulfonate as a copolymerizable ionic monomer. A dip molded product having excellent tensile strength, elongation, and touch may be obtained from a composition using the latex according to the present invention, and the generation of limitations, such as non-uniformity of physical properties and difficulties in product management, may be prevented.
    Type: Grant
    Filed: July 15, 2014
    Date of Patent: July 12, 2016
    Assignee: LG CHEM, LTD.
    Inventors: Seung Hun Yang, Ho Yeul Choi, Jung Su Han, Byoung Yun Kim, Jung Eun Kim
  • Patent number: 9353243
    Abstract: Disclosed are a latex composition for dip-forming and a dip-formed nitrile glove produced therefrom which comprise nanoparticulate zinc oxide in a latex for dip-forming, thus advantageously exhibiting superior workability during glove production, having excellent wear sensation due to low modulus at 300%, and not readily tearing in spite of small thickness due to high tensile strength. In addition, the latex composition stably maintains a pH in spite of using a small amount of pH adjuster and thus improves glove production process efficiency.
    Type: Grant
    Filed: January 15, 2013
    Date of Patent: May 31, 2016
    Assignee: LG Chem, Ltd.
    Inventors: Jung Eun Kim, Jung Su Han, Seung Uk Yeu
  • Patent number: 9281918
    Abstract: A link quality reporting method and apparatus, and a carrier selection method and apparatus, for a multicarrier communication system utilizing carrier aggregation are disclosed. In the system, the user equipment measures, for each component carrier divided into a Physical Downlink Shared Channel (PDSCH) resource region and a Physical Downlink Control Channel (PDCCH) resource region, link quality of the PDSCH resource region and the PDCCH resource region of the component carrier and sends measured link quality information as feedback information to the base station, and the base station adaptively selects a set of component carriers for control information transmission (i.e., a PDCCH Component Carrier (CC) SET) and a set of component carriers for data transmission (i.e., a DownLink (DL) CC SET) on the basis of the feedback information.
    Type: Grant
    Filed: April 5, 2011
    Date of Patent: March 8, 2016
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Jun Sung Lim, Hi Chan Moon, Jin Ho Kim, Jung Su Han
  • Publication number: 20150382351
    Abstract: A method for receiving data over a plurality of carrier components at a Mobile Station (MS) is provided. The method includes receiving, from a Base Station (BS), resource allocation information including a first allocation information indicating at least one resource allocated to a first carrier component in a first subframe and a second allocation information indicating at least one resource allocated to a second carrier component in a second subframe and receiving data, from the BS, on the at least one resource of the first carrier component and on the at least one resource of the second carrier component based on the resource allocation information.
    Type: Application
    Filed: September 4, 2015
    Publication date: December 31, 2015
    Inventors: Jun-Sung LIM, Hi-Chan MOON, Seong-Woo AHN, Jung-Su HAN
  • Patent number: 9130731
    Abstract: A method for receiving data over a plurality of carrier components at a Mobile Station (MS) is provided. The method includes receiving, from a Base Station (BS), resource allocation information including a first allocation information indicating at least one resource allocated to a first carrier component in a first subframe and a second allocation information indicating at least one resource allocated to a second carrier component in a second subframe and receiving data, from the BS, on the at least one resource of the first carrier component and on the at least one resource of the second carrier component based on the resource allocation information.
    Type: Grant
    Filed: January 3, 2014
    Date of Patent: September 8, 2015
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Jun-Sung Lim, Hi-Chan Moon, Seong-Woo Ahn, Jung-Su Han
  • Publication number: 20150225553
    Abstract: Disclosed is a latex composition for dip molding comprising a carboxylic acid-modified nitrile copolymer latex and starch and an article produced therefrom. Advantageously, a dip-molded article having low syneresis, less stickiness and superior tensile strength can be obtained by using the carboxylic acid-modified nitrile latex in conjunction with starch.
    Type: Application
    Filed: December 18, 2013
    Publication date: August 13, 2015
    Inventors: Seung Hun Yang, Byoung Yun Kim, Jung Eun Kim, Seung Uk Yeu, Jung Su Han
  • Patent number: 9059826
    Abstract: An apparatus and method for transmitting/receiving a Channel State Information-Reference Symbol (CSI-RS) in a relay network system are provided. The method for transmitting a CSI-RS in a relay network system includes selecting a subframe to transmit a CSI-RS, from DownLink (DL) subframes, transmitting, to a receive end, identifying information indicating that a CSI-RS is transmitted at the selected subframe, and transmitting a CSI-RS at the selected subframe.
    Type: Grant
    Filed: February 15, 2011
    Date of Patent: June 16, 2015
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Jung-Su Han, Hi-Chan Moon, Joon-Young Cho, Jun-Sung Lim, Jin-Ho Kim
  • Patent number: 9028971
    Abstract: The present invention relates to a paper coating latex comprising 0.001-10 weight part of cyclo-oligosaccharide compound to 100 weight part of styrene-butadiene latex and a paper coating composition containing the same, and according to the present invention, latex petrochemical odors generated during the coating processes by non-reacted monomers and volatile organic compounds remaining in the latex can be eliminated without reducing polymerization productivity and latex stability.
    Type: Grant
    Filed: August 31, 2006
    Date of Patent: May 12, 2015
    Assignee: LG Chem, Ltd.
    Inventors: Jung-su Han, Chang-sun Han, Ho-yeul Choi, Seung-hun Yang, Ji-sang Jeong
  • Patent number: 8975351
    Abstract: The present invention provides a latex resin composition for rubber gloves without sulfur and a vulcanization accelerator and a method of manufacturing dip-formed article using the composition. The composition comprises a conjugated diene monomer; an ethylenically unsaturated nitrile monomer; an ethylenically unsaturated acid monomer; an ethylenically unsaturated monomer copolymerizable with the ethylenically unsaturated nitrile monomer and the ethylenically unsaturated acid monomer; and a reactive compound including two or more reactive groups. According to the manufacturing method, productivity is improved by omitting a long maturation process included in a traditional glove manufacturing process; not only an adverse effect caused by traditional sulfur and vulcanization accelerator is reduced but also rubber gloves with excellent physical properties can be provided.
    Type: Grant
    Filed: August 10, 2009
    Date of Patent: March 10, 2015
    Assignee: LG Chem, Ltd.
    Inventors: Byoung Yun Kim, Jung Su Han, Ho Yeul Choi, Seung Hun Yang, Jung Eun Kim, Chang Sun Han
  • Patent number: 8942752
    Abstract: An apparatus and a method for a cluster-based power control at a macro base station in a wireless communication system are provided. The method includes broadcasting an interference allowance value determined based on a predefined aggregate interference to a femto cell, updating the interference allowance value with consideration of a channel activity for each femto cell group on a cluster basis, and when detecting a change in an aggregate interference generated due to femto cell power allocation, repeating determination of an interference allowance value so that a Quality of Service (QoS) of a macro cell user is met, and broadcasting the interference allowance value to a femto cell.
    Type: Grant
    Filed: November 4, 2011
    Date of Patent: January 27, 2015
    Assignees: Samsung Electronics Co., Ltd., Sungkyunkwan University Foundation for Corporate Collaboration
    Inventors: Dong In Kim, Hi-Chan Moon, Seong-Woo Ahn, Jung-Su Han, Seung-Ah Chae, Mi-Seong Jin
  • Publication number: 20140329956
    Abstract: Provided are a latex for dip molding, a composition for dip molding, a preparation method of a dip molded product, and a dip molded product prepared thereby. The latex for dip molding includes a conjugated diene monomer, an ethylenically unsaturated nitrile monomer, and an ethylenically unsaturated acid monomer, wherein the latex further includes sodium methallyl sulfonate as a copolymerizable ionic monomer. A dip molded product having excellent tensile strength, elongation, and touch may be obtained from a composition using the latex according to the present invention, and the generation of limitations, such as non-uniformity of physical properties and difficulties in product management, may be prevented.
    Type: Application
    Filed: July 15, 2014
    Publication date: November 6, 2014
    Inventors: Seung Hun YANG, Ho Yeul CHOI, Jung Su HAN, Byoung Yun KIM, Jung Eun KIM
  • Publication number: 20140323634
    Abstract: Disclosed are a latex composition for dip-forming and a dip-formed nitrile glove produced therefrom which comprise nanoparticulate zinc oxide in a latex for dip-forming, thus advantageously exhibiting superior workability during glove production, having excellent wear sensation due to low modulus at 300%, and not readily tearing in spite of small thickness due to high tensile strength. In addition, the latex composition stably maintains a pH in spite of using a small amount of pH adjuster and thus improves glove production process efficiency.
    Type: Application
    Filed: January 15, 2013
    Publication date: October 30, 2014
    Inventors: Jung Eun Kim, Jung Su Han, Seung Uk Yeu
  • Publication number: 20140302265
    Abstract: Disclosed are a carboxylic acid-modified nitrile copolymer latex for dip molding comprising a combination of a carboxylic acid-modified nitrile copolymer latex and a carboxylic acid-modified styrene copolymer latex, a latex composition for dip molding comprising the same and a molded article prepared therefrom. Molded articles with superior tensile strength are produced by respectively preparing a carboxylic acid-modified nitrile latex having a low glass transition temperature and an average particle diameter of 90 nm or higher, and a carboxylic acid-modified styrene latex having a glass transition temperature of 80° C. or higher and an average particle diameter less than 90 nm and then mixing the two latexes.
    Type: Application
    Filed: November 13, 2012
    Publication date: October 9, 2014
    Applicant: LG CHEM, LTD.
    Inventors: Seung Hun Yang, Jung Su Han, Seung Uk Yeu, Byoung Yun Kim, Jung Eun Kim