Patents by Inventor Yu Chan Kang

Yu Chan Kang 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: 9151989
    Abstract: The present invention relates to a norbornene monomer, a polynorbornene derivative, a liquid crystal alignment film including the same. and a liquid crystal display device including the same. More particularly, the present invention relates to a norbornene monomer, a polynorbornene derivative, a liquid crystal alignment film including the same, and a liquid crystal display device including the same, which have an alignment property by photoreaction, excellent thermal stability and photoreactivity, the increased photo-reaction rate and reliability of the alignment film, thereby showing high manufacturing process efficiency.
    Type: Grant
    Filed: March 27, 2014
    Date of Patent: October 6, 2015
    Assignee: LG Chem, Ltd.
    Inventors: Dai-Seung Choi, Heon Kim, Sung-Ho Chun, Sung-Joon Oh, Dong-Woo Yoo, Yu-Chan Kang
  • Patent number: 9146427
    Abstract: The present invention relates to a norbornene monomer, a polynorbornene derivative, a liquid crystal alignment film including the same, and a liquid crystal display device including the same. More particularly, the present invention relates to a norbornene monomer, a polynorbornene derivative, a liquid crystal alignment film including the same, and a liquid crystal display device including the same, which have an alignment property by photoreaction, excellent thermal stability and photoreactivity, the increased photo-reaction rate and reliability of the alignment film, thereby showing high manufacturing process efficiency.
    Type: Grant
    Filed: March 27, 2014
    Date of Patent: September 29, 2015
    Assignee: LG Chem, Ltd.
    Inventors: Dai-Seung Choi, Heon Kim, Sung-Ho Chun, Sung-Joon Oh, Dong-Woo Yoo, Yu-Chan Kang
  • Publication number: 20140295097
    Abstract: The present invention relates to a norbornene monomer, a polynorbornene derivative, a liquid crystal alignment film including the same, and a liquid crystal display device including the same. More particularly, the present invention relates to a norbornene monomer, a polynorbornene derivative, a liquid crystal alignment film including the same, and a liquid crystal display device including the same, which have an alignment property by photoreaction, excellent thermal stability and photoreactivity, the increased photo-reaction rate and reliability of the alignment film, thereby showing high manufacturing process efficiency.
    Type: Application
    Filed: March 27, 2014
    Publication date: October 2, 2014
    Applicant: LG CHEM, LTD.
    Inventors: Dai-Seung CHOI, Heon KIM, Sung-Ho CHUN, Sung-Joon OH, Dong-Woo YOO, Yu-Chan KANG
  • Publication number: 20140213815
    Abstract: The present invention relates to a norbornene monomer, a polynorbornene derivative, a liquid crystal alignment film including the same, and a liquid crystal display device including the same. More particularly, the present invention relates to a norbornene monomer, a polynorbornene derivative, a liquid crystal alignment film including the same, and a liquid crystal display device including the same, which have an alignment property by photoreaction, excellent thermal stability and photoreactivity, the increased photo-reaction rate and reliability of the alignment film, thereby showing high manufacturing process efficiency.
    Type: Application
    Filed: March 27, 2014
    Publication date: July 31, 2014
    Applicant: LG CHEM, LTD.
    Inventors: Dai-Seung CHOI, Heon KIM, Sung-Ho CHUN, Sung-Joon OH, Dong-Woo YOO, Yu-Chan KANG
  • Patent number: 8722157
    Abstract: The present invention relates to a norbornene monomer, a polynorbornene derivative, a liquid crystal alignment film including the same, and a liquid crystal display device including the same. More particularly, the present invention relates to a norbornene monomer, a polynorbornene derivative, a liquid crystal alignment film including the same, and a liquid crystal display device including the same, which have an alignment property by photoreaction, excellent thermal stability and photoreactivity, the increased photo-reaction rate and reliability of the alignment film, thereby showing high manufacturing process efficiency.
    Type: Grant
    Filed: August 17, 2009
    Date of Patent: May 13, 2014
    Assignee: LG Chem, Ltd.
    Inventors: Dai-Seung Choi, Heon Kim, Sung-Ho Chun, Sung-Joon Oh, Dong-Woo Yoo, Yu-Chan Kang
  • Patent number: 8563764
    Abstract: The present invention relates to an esterification catalyst composition that includes a zirconium compound and a method for producing an ester compound, which includes the steps of esterifying alcohol and carboxylic acid compounds by using the same, and it may be applied to a mass synthesis process.
    Type: Grant
    Filed: December 30, 2008
    Date of Patent: October 22, 2013
    Assignee: LG Chem, Ltd.
    Inventors: Dai-Seung Choi, Sung-Ho Chun, Yu-Chan Kang, Heon Kim, Dong-Woo Yoo
  • Patent number: 8046031
    Abstract: A mobile communication terminal and method of controlling a broadcast program are disclosed, by which the inability to view or record a reserved broadcast program is prevented and by which information related to the availability of a reserved broadcast program for viewing or recording with reference to a battery capacity can be provided to a user in real time.
    Type: Grant
    Filed: January 8, 2007
    Date of Patent: October 25, 2011
    Assignee: LG Electronics Inc.
    Inventor: Yu Chan Kang
  • Publication number: 20110130574
    Abstract: The present invention relates to an esterification catalyst composition that includes a zirconium compound and a method for producing an ester compound, which includes the steps of esterifying alcohol and carboxylic acid compounds by using the same, and it may be applied to a mass synthesis process.
    Type: Application
    Filed: January 28, 2011
    Publication date: June 2, 2011
    Inventors: Dai-Seung CHOI, Yu-Chan Kang, Sung-Ho Chun, Heon Kim, Dong-Woo Yoo
  • Publication number: 20100280265
    Abstract: The present invention relates to an esterification catalyst composition that includes a zirconium compound and a method for producing an ester compound, which includes the steps of esterifying alcohol and carboxylic acid compounds by using the same, and it may be applied to a mass synthesis process.
    Type: Application
    Filed: December 30, 2008
    Publication date: November 4, 2010
    Inventors: Dai-Seung Choi, Sung-Ho Chun, Yu-Chan Kang, Heon Kim, Dong-Woo Yoo
  • Publication number: 20100274039
    Abstract: The present invention relates to an esterification catalyst composition that includes a zirconium compound and a method for producing an ester compound, which includes the steps of esterifying alcohol and carboxylic acid compounds by using the same, and it may be applied to a mass synthesis process.
    Type: Application
    Filed: December 24, 2008
    Publication date: October 28, 2010
    Inventors: Dai-Seung Choi, Yu-Chan Kang, Sung-Ho Chun, Heon Kim, Dong-Woo Yoo
  • Publication number: 20100047481
    Abstract: The present invention relates to a norbornene monomer, a polynorbornene derivative, a liquid crystal alignment film including the same, and a liquid crystal display device including the same. More particularly, the present invention relates to a norbornene monomer, a polynorbornene derivative, a liquid crystal alignment film including the same, and a liquid crystal display device including the same, which have an alignment property by photoreaction, excellent thermal stability and photoreactivity, the increased photo-reaction rate and reliability of the alignment film, thereby showing high manufacturing process efficiency.
    Type: Application
    Filed: August 17, 2009
    Publication date: February 25, 2010
    Inventors: Dai-Seung Choi, Heon Kim, Sung-Ho Chun, Sung-Joon Oh, Dong-Woo Yoo, Yu-Chan Kang
  • Publication number: 20070173221
    Abstract: A mobile communication terminal and method of controlling a broadcast program are disclosed, by which the inability to view or record a reserved broadcast program is prevented and by which information related to the availability of a reserved broadcast program for viewing or recording with reference to a battery capacity can be provided to a user in real time.
    Type: Application
    Filed: January 8, 2007
    Publication date: July 26, 2007
    Inventor: Yu Chan Kang