Patents by Inventor Gun-Soo Chung

Gun-Soo Chung 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: 9403348
    Abstract: The present invention relates to sheets. The sheets include an adhesive layer, a base layer formed on the adhesive layer, a resin layer formed on the base layer, and a printed layer formed on the resin layer. Each of the adhesive layer and the resin layer includes a polylactic acid (PLA) resin. The sheets are biodegradable.
    Type: Grant
    Filed: September 21, 2012
    Date of Patent: August 2, 2016
    Assignee: LG HAUSYS, LTD.
    Inventors: Gun Soo Chung, Youn Woo Nam, Si Young Lee, Min Lee
  • Patent number: 9388581
    Abstract: The present invention relates to panels. The panels include a panel layer and a printed layer formed on the panel layer. The panel layer includes a polylactic acid (PLA) resin. The panels are environmentally friendly and biodegradable.
    Type: Grant
    Filed: September 21, 2012
    Date of Patent: July 12, 2016
    Assignee: LG HAUSYS, LTD.
    Inventors: Min Lee, Youn Woo Nam, Si Young Lee, Gun Soo Chung
  • Patent number: 9365741
    Abstract: The present invention relates to sheets. The sheets include a base layer, a foamed layer formed on the base layer, a printed layer formed on the foamed layer, and a partially foamed layer formed on the printed layer. At least one layer of the foamed layer and the partially foamed layer includes a polylactic acid (PLA) resin. The sheets are biodegradable.
    Type: Grant
    Filed: May 4, 2012
    Date of Patent: June 14, 2016
    Assignee: LG HAUSYS, LTD.
    Inventors: Si Young Lee, Youn Woo Nam, Gun Soo Chung, Min Lee
  • Patent number: 8962118
    Abstract: The present invention relates to sheets. The sheets include a base layer, a resin layer formed on the base layer, and a printed layer formed on the resin layer. The resin layer includes a polylactic acid (PLA) resin. The sheets are biodegradable.
    Type: Grant
    Filed: May 4, 2012
    Date of Patent: February 24, 2015
    Assignee: LG Hausys, Ltd.
    Inventors: Gun Soo Chung, Youn Woo Nam, Si Young Lee, Min Lee
  • Publication number: 20140370253
    Abstract: The present invention relates to panels. The panels include a panel layer and a printed layer formed on the panel layer. The panel layer includes a polylactic acid (PLA) resin. The panels are environmentally friendly and biodegradable.
    Type: Application
    Filed: September 21, 2012
    Publication date: December 18, 2014
    Inventors: Min Lee, Youn Woo Nam, Si Young Lee, Gun Soo Chung
  • Publication number: 20140329065
    Abstract: The present invention relates to sheets. The sheets include an adhesive layer, a base layer formed on the adhesive layer, a resin layer formed on the base layer, and a printed layer formed on the resin layer. Each of the adhesive layer and the resin layer includes a polylactic acid (PLA) resin. The sheets are biodegradable.
    Type: Application
    Filed: September 21, 2012
    Publication date: November 6, 2014
    Inventors: Gun Soo Chung, Youn Woo Nam, Si Young Lee, Min Lee
  • Publication number: 20140072782
    Abstract: The present invention relates to sheets. The sheets include a base layer, a resin layer formed on the base layer, and a printed layer formed on the resin layer. The resin layer includes a polylactic acid (PLA) resin. The sheets are biodegradable.
    Type: Application
    Filed: May 4, 2012
    Publication date: March 13, 2014
    Applicant: LG HAUSYS, LTD
    Inventors: Gun Soo Chung, Youn Woo Nam, Si Young Lee, Min Lee
  • Publication number: 20140050904
    Abstract: The present invention relates to sheets. The sheets include a base layer, a foamed layer formed on the base layer, a printed layer formed on the foamed layer, and a partially foamed layer formed on the printed layer. At least one layer of the foamed layer and the partially foamed layer includes a polylactic acid (PLA) resin. The sheets are biodegradable.
    Type: Application
    Filed: May 4, 2012
    Publication date: February 20, 2014
    Applicant: LG HAUSYS, LTD
    Inventors: Si Young Lee, Youn Woo Nam, Gun Soo Chung, Min Lee
  • Publication number: 20130266767
    Abstract: The present invention provides an eco-friendly foaming sheet. More particularly, the eco-friendly foaming sheet is fabricated using a biodegradable resin composition on a substrate, wherein the biodegradable resin composition is applied to the substrate sheet, a print layer is formed thereon, and the treated sheet is subjected to foaming. According to the present invention, without processes of preparing a sheet and foaming using a biodegradable resin, the biodegradable resin layer is directly applied to a substrate sheet as a subject to be used and foamed while forming a print layer, in addition, a chemical foaming agent and an eco-friendly plasticizer used together with the biodegradable resin are specifically defined to ensure desired flexibility, thereby fabricating an eco-friendly foaming sheet with high productivity.
    Type: Application
    Filed: December 23, 2011
    Publication date: October 10, 2013
    Applicant: LG Hausys, Ltd.
    Inventors: Gun Soo Chung, Youn Woo Nam, Si Young Lee
  • Patent number: 7462400
    Abstract: Disclosed herein are a caster-resistant surface laminate using a synthetic resin and a flooring comprising the surface laminate. The surface laminate utilizes buffering properties of a synthetic resin layer, thus minimizing damage to the surface of the flooring. The surface laminate uses a resin selected from PVC, PE, PET, PETG, PCTG and PU in order to enhance the caster resistance, impact resistance and water resistance. As a result, the surface laminate has improved physical properties without occurrence of damage, such as hollowing and breakage, caused by external impacts, as compared to conventional surface laminates. In addition, the caster-resistant surface laminate attains interior decorative effects by coloration of the synthetic resin layer.
    Type: Grant
    Filed: October 31, 2005
    Date of Patent: December 9, 2008
    Assignee: LG Chem, Ltd.
    Inventors: Byung-Hyun Roh, Gun-Soo Chung, Ill-Hong Min, Seog-Goo Kang, Sung-Hoon Yue
  • Publication number: 20060234009
    Abstract: Disclosed herein are a caster-resistant surface laminate using a synthetic resin and a flooring comprising the surface laminate. The surface laminate utilizes buffering properties of a synthetic resin layer, thus minimizing damage to the surface of the flooring. The surface laminate uses a resin selected from PVC, PE, PET, PETG, PCTG and PU in order to enhance the caster resistance, impact resistance and water resistance. As a result, the surface laminate has improved physical properties without occurrence of damage, such as hollowing and breakage, caused by external impacts, as compared to conventional surface laminates. In addition, the caster-resistant surface laminate attains interior decorative effects by coloration of the synthetic resin layer.
    Type: Application
    Filed: October 31, 2005
    Publication date: October 19, 2006
    Inventors: Byung-Hyun Roh, Gun-Soo Chung, Ill-Hong Min, Seog-Goo Kang, Sung-Hoon Yue