Patents by Inventor Dong-Min Heo

Dong-Min Heo 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: 20240052170
    Abstract: Disclosed in the present invention are near-infrared reflecting functional pigment, paint, and panel, especially, used for a vehicle pigment or the like. The pigment according to the present invention comprises: a platelet-like substrate; a first metal oxide layer coated on at least a portion of the substrate and having a refractive index of 1.8 or larger, and a second metal oxide layer coated on at least a portion of the first metal oxide layer and containing an absorbent material, wherein the pigment reflects on average at least 30% of an IR electron beam of 850-950 nm.
    Type: Application
    Filed: November 21, 2022
    Publication date: February 15, 2024
    Inventors: Dong-Min HEO, Jae-Il JEONG, Kwang-Choong KANG, Byung-Ki CHOI, Kwang-Soo LIM, Kil-Wan CHANG
  • Publication number: 20160280927
    Abstract: The present invention relates to a method for preparing an iron oxide-based gloss and, more specifically, to a method for preparing an iron oxide-based black glossy pigment with high yield using iron sulfate as a starting material through thermal synthesis without sintering, wherein the method comprises the steps of: preparing an iron sulfate dilution liquid; forming a suspension of flake substrates; titrating the substrate suspension with an aqueous inorganic salt solution and mixing the iron sulfate dilution liquid therewith, thereby coating an oxide layer on surfaces of the flake substrates.
    Type: Application
    Filed: October 28, 2014
    Publication date: September 29, 2016
    Applicant: CQV CO., LTD.
    Inventors: Dong-Min HEO, Jae-il JEONG, Kwang-Choong KANG, Byung-Ki CHOI, Kwang-Soo LIM, Kil-Wan CHANG, Gun-Eik JANG
  • Patent number: 8900660
    Abstract: Disclosed is a method for producing a silver (Ag) coating pigment. The method for producing a silver coating pigment according to the present invention comprises: a step of forming a tin compound pretreatment layer on the matrix surface; and a step of forming a silver coating layer on the lower portion of the tin compound pretreatment layer through a reflux and electroless plating process using a diluted solution of silver nitrate, ammonia water, a citric acid solution, and a diluted solution of potassium hydroxide.
    Type: Grant
    Filed: April 12, 2012
    Date of Patent: December 2, 2014
    Assignee: CQV Co., Ltd.
    Inventors: Dong-Min Heo, Jae-Il Jeong, Kwang-Choong Kang, Byung-Ki Choi, Kwang-Soo Lim, Kil-Wan Chang, Man-Su Lee, Gun-Eik Jang
  • Publication number: 20140050769
    Abstract: Disclosed is a method for producing a silver (Ag) coating pigment. The method for producing a silver coating pigment according to the present invention comprises: a step of forming a tin compound pretreatment layer on the matrix surface; and a step of forming a silver coating layer on the lower portion of the tin compound pretreatment layer through a reflux and electroless plating process using a diluted solution of silver nitrate, ammonia water, a citric acid solution, and a diluted solution of potassium hydroxide.
    Type: Application
    Filed: April 12, 2012
    Publication date: February 20, 2014
    Applicant: CQV CO., LTD.
    Inventors: Dong-Min Heo, Jae-Il Jeong, Kwang-Choong Kang, Byung-Ki Choi, Kwang-Soo Lim, Kil-Wan Chang, Man-Su Lee, Gun-Eik Jang