Patents by Inventor Do Rha

Do Rha 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: 20080113124
    Abstract: An acrylic artificial stone composition includes an acrylic resin, metallized polymer film particles, and an inorganic filler.
    Type: Application
    Filed: January 14, 2008
    Publication date: May 15, 2008
    Inventors: Eung Park, Do Rha
  • Publication number: 20070281114
    Abstract: An artificial stone, including a solid material and surface-treated stone elements in the solid material, wherein the surface-treated stone elements are transparent stone elements having a coloring material disposed on surfaces thereof.
    Type: Application
    Filed: June 6, 2007
    Publication date: December 6, 2007
    Inventors: Do Rha, Eung Park, Jae Juen
  • Publication number: 20070240818
    Abstract: A composite solid surface article includes a surface layer with at least one first polymeric resin and a filler, and a backing layer on the surface layer with at least one second polymeric resin and wood particles.
    Type: Application
    Filed: June 15, 2007
    Publication date: October 18, 2007
    Inventors: Jae Juen, Eung Park, Do Rha
  • Publication number: 20070243369
    Abstract: A foamed stone article has a lower artificial stone layer and an upper foam layer that are a single body. A composition for the foamed stone article includes about 100 parts by weight of acrylic resin, about 10 to about 80 parts by weight of solid particles and about 0.1 to about 10 parts by weight of an initiator.
    Type: Application
    Filed: June 15, 2007
    Publication date: October 18, 2007
    Inventors: Eung Park, Do Rha, Jae Juen
  • Publication number: 20070232496
    Abstract: A composition for artificial marble includes (a) about 100 parts by weight of an acrylic resin; (b) about 1 to about 30 parts by weight of an ocher powder having a particle size of about 1 to about 50 ?m; (c) about 100 to about 200 parts by weight of an inorganic filler; (d) about 0.1 to about 10 parts by weight of cross-linking agent; and (e) about 0.1 to about 10 parts by weight of a polymerization initiator.
    Type: Application
    Filed: June 7, 2007
    Publication date: October 4, 2007
    Applicant: CHEIL INDUSTRIES INC.
    Inventors: Dong CHUNG, Do RHA, Eung PARK
  • Publication number: 20060267230
    Abstract: The method for preparing an artificial marble having a crack pattern is disclosed. The method includes preparing a first and a second polymeric compositions of different viscosities; pouring the first polymeric composition into a molding cell; pouring the second polymeric composition onto the first polymeric composition; allowing migration of the first polymeric composition to the upper part of the second polymeric composition due to the difference in viscosity between the first and the second compositions; and curing the two polymeric compositions to form a crack pattern. The viscosity of the first polymeric composition is lower than that of the second polymeric composition.
    Type: Application
    Filed: August 4, 2006
    Publication date: November 30, 2006
    Inventors: Do Rha, Eung Park, Jae Juen
  • Publication number: 20060121286
    Abstract: A method and apparatus for producing a composite solid surface article are disclosed. The method includes feeding a first composition toward a mixing point and feeding solid particles toward the mixing point. The method further includes mixing at the mixing point the first composition and the solid particles fed to the mixing point to form a second composition, and transferring the second composition away from the mixing point. The method further comprises polymerizing the polymerizable compound in the second compound so as to form a curable composition comprising the solid particles. The apparatus includes a solid particle feeder, a slurry feeder and a blender configured to blend and transfer a mixture of the solid surface forming slurry and solid particles away from the blending area. The composite solid surface article produced using the method and apparatus contain particles with a size greater than 5 mm.
    Type: Application
    Filed: December 8, 2005
    Publication date: June 8, 2006
    Inventors: Do Rha, Tae Kim, Mi Kim, Gwang Jung
  • Publication number: 20050066145
    Abstract: An apparatus and method for managing a memory of a computer and controlling a booting operation of the computer, are provided. The computer includes a memory having a user area and a protected security area (PSA). The user area has a management area. The method includes assigning a first partition to the user area of the memory; storing first partition information in the management area of the user area, the first partition information pertaining to the first partition; assigning a second partition to the PSA in response to an access signal, the access signal authorizing access to the PSA; storing, in the management area, second partition information pertaining to the second partition; storing the second partition information in the PSA; and removing the second partition information from the management area after storing the second partition information in the PSA.
    Type: Application
    Filed: August 9, 2004
    Publication date: March 24, 2005
    Applicant: LG Electronics Inc.
    Inventors: Hyung Han, Byung Kim, Jae Han, Do Rha