Patents by Inventor Byung Choon Lee

Byung Choon 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: 11947744
    Abstract: The present disclosure relates to a device for providing augmented reality that can accurately recognize a writing tool such as an electronic pen to realize motion information of the writing tool over augmented reality contents, and a method for providing augmented reality using the same. According to some embodiments of the disclosure, an augmented reality device includes at least one transparent lens, a support frame supporting the at least one transparent lens, at least one display module configured to display augmented reality contents through the at least one transparent lens, a sensing module at a front of the support frame, and configured to generate image data, and a control module configured to receive motion-sensing signals of an electronic pen to detect motion information of the electronic pen, and configured to modulate the augmented reality contents so that the motion information of the electronic pen is includes therein.
    Type: Grant
    Filed: July 21, 2022
    Date of Patent: April 2, 2024
    Assignee: Samsung Display Co., Ltd.
    Inventors: Tae Hee Lee, Byung Choon Yang, Joo Woan Cho, Byeong Hwa Choi, Hae Yun Choi
  • Patent number: 8835558
    Abstract: Disclosed is a polylactic acid/polycarbonate resin composition including (A) a mixed resin including (a1) a polycarbonate resin and (a2) a polylactic acid resin, and (B) a modified acrylic-based resin, and a molded product made using the same.
    Type: Grant
    Filed: December 18, 2009
    Date of Patent: September 16, 2014
    Assignee: Cheil Industries Inc.
    Inventors: Hyung-Tak Lee, Doo-Han Ha, Chang-Do Jung, Young-Chul Kwon, Jin-Kyung Cho, Young-Mi Chung, Byung-Choon Lee
  • Patent number: 8383726
    Abstract: Disclosed is a thermoplastic resin composition having excellent impact resistance at a low temperature, while maintaining high transparency; this thermoplastic resin composition is obtained by compounding an impact resistance improver into a thermoplastic resin, the impact resistance improver being composed of a graft copolymer which is obtained by polymerizing a vinyl monomer component in the presence of a polymer mixture containing a polymer having butadiene units as an essential component and a polymer having styrene units as an essential component, the polymer mixture containing 45 to 65% by mass of the butadiene units and 35 to 55% by mass of the styrene units.
    Type: Grant
    Filed: August 29, 2007
    Date of Patent: February 26, 2013
    Assignees: Mitsubishi Rayon Co., Ltd., Cheil Industries Inc.
    Inventors: Osamu Okunaka, Hiroyuki Nishii, Takashi Shouji, Keiji Nakamura, Tae Uk Kim, Byung Choon Lee
  • Patent number: 8314168
    Abstract: A polymer composition includes a polycarbonate resin, a syndiotactic polystyrene resin, a core-shell graft copolymer, and a phosphate ester compound. In some embodiments, the compositions have one or more of good impact strength, Falling Dart impact strength, chemical resistance, and flowability.
    Type: Grant
    Filed: March 7, 2007
    Date of Patent: November 20, 2012
    Assignee: Cheil Industries Inc.
    Inventors: Sung Sig Min, Byung Choon Lee, Han Su Lee
  • Patent number: 8202938
    Abstract: Disclosed is a thermoplastic resin composition that includes (A) a polycarbonate resin, (B) a modified acryl-based copolymer resin, (C) a polysiloxane copolymer including an aryl group, and (D) a core-shell graft copolymer.
    Type: Grant
    Filed: November 5, 2009
    Date of Patent: June 19, 2012
    Assignee: Cheil Industries Inc.
    Inventors: Byung-Choon Lee, Doo-Han Ha, Tae-Uk Kim, Jae-Hoon Jeong, Il-Jin Kim
  • Patent number: 8053534
    Abstract: Disclosed is a thermoplastic resin composition that includes: (A) about 55 to about 95 wt % of a polycarbonate resin; (B) about 1 to about 40 wt % of a polyalkyl(meth)acrylate resin having a weight average molecular weight of about 1,000,000 g/mol or more; and (C) about 0.001 to about 10 wt % of a polysiloxane resin, and a molded product made using the same.
    Type: Grant
    Filed: December 2, 2009
    Date of Patent: November 8, 2011
    Assignee: Cheil Industries, Inc.
    Inventors: Byung-Choon Lee, Tae-Uk Kim, Doo-Han Ha
  • Patent number: 7956127
    Abstract: Disclosed herein are a polycarbonate resin composition and a plastic article produced from the resin composition. The polycarbonate resin composition includes about 85 to about 99 parts by weight of a polycarbonate resin and about 1 to about 15 parts by weight of a core-shell graft copolymer, wherein the core-shell graft copolymer has a core-shell structure in which a vinyl monomer including methyl methacrylate and phenyl methacrylate is grafted onto a rubber.
    Type: Grant
    Filed: December 18, 2007
    Date of Patent: June 7, 2011
    Assignee: Cheil Industries Inc.
    Inventors: Byung Choon Lee, Tae Uk Kim
  • Patent number: 7956105
    Abstract: Disclosed is a silicone impact modifier with a high refractive index. The silicone impact modifier can include (A) a rubber core including (a1) an organosiloxane cross-linked (co)polymer with a particle size of about 50 to about 400 nm and (a2) an alkylacrylate-styrenic aromatic compound cross-linked copolymer; and (B) a plastic shell including a vinyl (co)polymer. The refractive index of the silicone impact modifier of the present invention can be about 1.49 to about 1.59.
    Type: Grant
    Filed: June 27, 2007
    Date of Patent: June 7, 2011
    Assignee: Cheil Industries Inc.
    Inventors: Han Su Lee, Sung Sig Min, Byung Choon Lee, Byeong Do Lee
  • Publication number: 20100280180
    Abstract: A thermoplastic resin composition includes (A) 60 to 96 parts by weight of a polycarbonate resin, (B) 3 to 30 parts by weight of a polyalkyl(meth)acrylate resin having a weight average molecular weight of 30,000 g/mol or less, and (C) 1 to 10 parts by weight of polydialkyl-diarylsiloxane. The thermoplastic resin composition according to the present invention can have excellent scratch resistance and can be used in molded articles requiring high coloring properties such as exterior parts, vehicle precision parts, and the like.
    Type: Application
    Filed: July 14, 2010
    Publication date: November 4, 2010
    Applicant: CHEIL INDUSTRIES INC.
    Inventors: Byung-Choon LEE, Tae-Uk KIM, Young-Jun LEE
  • Publication number: 20100261844
    Abstract: A thermoplastic resin composition includes a polycarbonate resin, a low molecular weight polymethyl(meth)acrylate resin, and a core-shell graft copolymer, and the low molecular weight polymethyl(meth)acrylate resin has a weight average molecular weight ranging from 5000 to 30,000. The thermoplastic resin composition can have excellent scratch resistance, impact resistance, and transparency, and accordingly can be used in various molded products such as external parts of electronics, external materials of a car, and the like, which can simultaneously require scratch and impact resistance and transparency.
    Type: Application
    Filed: June 28, 2010
    Publication date: October 14, 2010
    Applicant: CHEIL INDUSTRIES INC.
    Inventors: Byung-Choon LEE, Tae-Uk KIM, Jin-Kyung CHO
  • Publication number: 20100160559
    Abstract: Disclosed is a polylactic acid/polycarbonate resin composition including (A) a mixed resin including (a1) a polycarbonate resin and (a2) a polylactic acid resin, and (B) a modified acrylic-based resin, and a molded product made using the same.
    Type: Application
    Filed: December 18, 2009
    Publication date: June 24, 2010
    Applicant: CHEIL INDUSTRIES INC.
    Inventors: Hyung-Tak Lee, Doo-Han Ha, Chang-Do Jung, Young-Chul Kwon, Jin-Kyung Cho, Young-Mi Chung, Byung-Choon Lee
  • Publication number: 20100160560
    Abstract: Disclosed is a thermoplastic resin composition that includes: (A) about 55 to about 95 wt % of a polycarbonate resin; (B) about 1 to about 40 wt % of a polyalkyl(meth)acrylate resin having a weight average molecular weight of about 1,000,000 g/mol or more; and (C) about 0.001 to about 10 wt % of a polysiloxane resin, and a molded product made using the same.
    Type: Application
    Filed: December 2, 2009
    Publication date: June 24, 2010
    Applicant: CHEIL INDUSTRIES INC.
    Inventors: Byung-Choon LEE, Tae-Uk KIM, Doo-Han HA
  • Publication number: 20100113697
    Abstract: Disclosed is a thermoplastic resin composition that includes (A) a polycarbonate resin, (B) a modified acryl-based copolymer resin, (C) a polysiloxane copolymer including an aryl group, and (D) a core-shell graft copolymer.
    Type: Application
    Filed: November 5, 2009
    Publication date: May 6, 2010
    Inventors: Byung-Choon LEE, Doo-Han HA, Tae-Uk KIM, Jae-Hoon JEONG, Il-Jin KIM
  • Publication number: 20090209707
    Abstract: Disclosed is a thermoplastic resin composition having excellent impact resistance at a low temperature, while maintaining high transparency; this thermoplastic resin composition is obtained by compounding an impact resistance improver into a thermoplastic resin, the impact resistance improver being composed of a graft copolymer which is obtained by polymerizing a vinyl monomer component in the presence of a polymer mixture containing a polymer having butadiene units as an essential component and a polymer having styrene units as an essential component, the polymer mixture containing 45 to 65% by mass of the butadiene units and 35 to 55% by mass of the styrene units.
    Type: Application
    Filed: August 29, 2007
    Publication date: August 20, 2009
    Applicant: Mitsubishi Rayon Co., Ltd.
    Inventors: Osamu Okunaka, Hiroyuki Nishii, Takashi Shouji, Keiji Nakamura, Tae Uk Kim, Byung Choon Lee
  • Patent number: 7541401
    Abstract: Disclosed herein is an impact modifier for a polymer composition and a method of preparing the same. The impact modifier includes a core comprising a polyorganosiloxane, an acrylate polymer and a styrenic polymer; and a shell generally surrounding the core, the shell comprising a polymer attached to the core. The method includes providing a silicone rubber particle; adding a polymerizable styrenic compound into the silicone rubber particle; polymerizing the polymerizable styrenic compound within the particle to provide a styrenic polymer; adding a polymerizable acrylic compound into the silicone rubber particle; polymerizing the polymerizable acrylic compound within the silicone rubber particle to provide an acrylate polymer; and grafting a polymerizable compound onto the silicone rubber particle to provide a shell substantially surrounding the silicone rubber particle comprising the styrenic polymer and the acrylate polymer.
    Type: Grant
    Filed: December 28, 2005
    Date of Patent: June 2, 2009
    Assignee: Cheil Industries Inc.
    Inventors: Han Su Lee, Byeong Do Lee, Sung Sig Min, Byung Choon Lee
  • Publication number: 20080161494
    Abstract: Disclosed herein are a polycarbonate resin composition and a plastic article produced from the resin composition. The polycarbonate resin composition includes about 85 to about 99 parts by weight of a polycarbonate resin and about 1 to about 15 parts by weight of a core-shell graft copolymer, wherein the core-shell graft copolymer has a core-shell structure in which a vinyl monomer including methyl methacrylate and phenyl methacrylate is grafted onto a rubber.
    Type: Application
    Filed: December 18, 2007
    Publication date: July 3, 2008
    Applicant: CHEIL INDUSTRIES INC.
    Inventors: Byung Choon LEE, Tae Uk KIM
  • Publication number: 20070213435
    Abstract: A polymer composition includes a polycarbonate resin, a syndiotactic polystyrene resin, a core-shell graft copolymer, and a phosphate ester compound. In some embodiments, the compositions have one or more of good impact strength, Falling Dart impact strength, chemical resistance, and flowability.
    Type: Application
    Filed: March 7, 2007
    Publication date: September 13, 2007
    Applicant: Cheil Industries, Inc.
    Inventors: Sung Sig Min, Byung Choon Lee, Han Su Lee