Patents by Inventor Hyoung-Joo CHUNG

Hyoung-Joo 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: 10472495
    Abstract: The present invention relates to a coloring resin composition exhibiting pleochroism comprising 100 parts by weight of a transparent thermoplastic resin (A); 0.01 to 0.03 parts by weight of a dye for coloring a resin (B) which is one selected from the group consisting of an azo-based dye (b1), an anthraquinone-based dye (b2), and a methine dye (b3); and 0.1 to 0.3 parts by weight of a functional black dye (C) obtained by mixing an anthraquinone-based dye (c1) and a perinone-based dye (c2). A resin molded article manufactured by the coloring resin composition exhibiting pleochroism of the present invention is characterized by exhibiting different colors of light according to thicknesses although the resin molded article is irradiated with light sources in a single wavelength.
    Type: Grant
    Filed: December 20, 2017
    Date of Patent: November 12, 2019
    Assignee: Lotte Advanced Materials Co., Ltd.
    Inventors: Hyoung Joo Chung, Jae Kyung Kim, Eun Ju Song, Young Bae Lee
  • Publication number: 20180127566
    Abstract: The present invention relates to a coloring resin composition exhibiting pleochroism comprising 100 parts by weight of a transparent thermoplastic resin (A); 0.01 to 0.03 parts by weight of a dye for coloring a resin (B) which is one selected from the group consisting of an azo-based dye (b1), an anthraquinone-based dye (b2), and a methine dye (b3); and 0.1 to 0.3 parts by weight of a functional black dye (C) obtained by mixing an anthraquinone-based dye (c1) and a perinone-based dye (c2). A resin molded article manufactured by the coloring resin composition exhibiting pleochroism of the present invention is characterized by exhibiting different colors of light according to thicknesses although the resin molded article is irradiated with light sources in a single wavelength.
    Type: Application
    Filed: December 20, 2017
    Publication date: May 10, 2018
    Inventors: Hyoung Joo CHUNG, Jae Kyung KIM, Eun Ju SONG, Young Bae LEE
  • Patent number: 9868849
    Abstract: The present invention relates to a coloring resin composition exhibiting pleochroism comprising 100 parts by weight of a transparent thermoplastic resin (A); 0.01 to 0.03 parts by weight of a dye for coloring a resin (B) which is one selected from the group consisting of an azo-based dye (b1), an anthraquinone-based dye (b2), and a methine dye (b3); and 0.1 to 0.3 parts by weight of a functional black dye (C) obtained by mixing an anthraquinone-based dye (c1) and a perinone-based dye (c2). A resin molded article manufactured by the coloring resin composition exhibiting pleochroism of the present invention is characterized by exhibiting different colors of light according to thicknesses although the resin molded article is irradiated with light sources in a single wavelength.
    Type: Grant
    Filed: August 3, 2012
    Date of Patent: January 16, 2018
    Assignee: Lotte Advanced Materials Co., Ltd.
    Inventors: Hyoung Joo Chung, Jae Kyung Kim, Eun Ju Song, Young Bae Lee
  • Publication number: 20140374676
    Abstract: The present invention relates to a coloring resin composition exhibiting pleochroism comprising 100 parts by weight of a transparent thermoplastic resin (A); 0.01 to 0.03 parts by weight of a dye for coloring a resin (B) which is one selected from the group consisting of an azo-based dye (b1), an anthraquinone-based dye (b2), and a methine dye (b3); and 0.1 to 0.3 parts by weight of a functional black dye (C) obtained by mixing an anthraquinone-based dye (c1) and a perinone-based dye (c2). A resin molded article manufactured by the coloring resin composition exhibiting pleochroism of the present invention is characterized by exhibiting different colors of light according to thicknesses although the resin molded article is irradiated with light sources in a single wavelength.
    Type: Application
    Filed: August 3, 2012
    Publication date: December 25, 2014
    Applicant: SAMSUNG SDI CO., LTD.
    Inventors: Hyoung Joo Chung, Jae Kyung Kim, Eun Ju Song, Young Bae Lee
  • Publication number: 20110059300
    Abstract: The present invention provides a molded product assembly. The molded product assembly includes a first molded product having a transparency ranging from about 75 to about 99.9% and a second molded product having a transparency ranging from about 0.1 to about 50% and can have a metal texture.
    Type: Application
    Filed: August 25, 2010
    Publication date: March 10, 2011
    Applicant: CHEIL INDUSTRIES INC.
    Inventors: Jae-Kyung KIM, Jeong-Mi SEO, Hyoung-Joo CHUNG