Patents by Inventor Kum-Sung CHO

Kum-Sung CHO 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: 20240018360
    Abstract: A pigment composition according to an embodiment includes aluminum flakes coated with a plurality of metal oxide layers and TiO2 coated with a metal oxide layer, thus having explosion stability. The pigment composition may be prepared by mixing with TiO2 coated with a metal oxide layer having lower apparent specific gravity as compared to other plate-shaped inorganic particles. The pigment composition can have stability against a thermite reaction by aluminum and metal oxides while preventing deterioration of saturation and opacity.
    Type: Application
    Filed: October 25, 2021
    Publication date: January 18, 2024
    Inventors: Nam-Il LEE, Min-Jae KIM, Jang-Hun HAN, Yun-Seok JANG, Dae-Ho SHIN, Kum-Sung CHO, Kil-Wan CHANG, Kwang-Soo LIM, Byung-Ki CHOI, Kwang-Choong KANG
  • Patent number: 11407900
    Abstract: A pearlescent pigment for security purposes according to an embodiment of the present invention includes a single or a plurality of coating layers containing a metal oxide and an organic or inorganic fluorescent material. Since the pearlescent pigment for security purposes according to the present disclosure includes a fluorescent layer containing the organic or inorganic fluorescent material, it can be used as a pigment for security purposes due to its optical characteristics and can also provide effects such as magnetism, high color intensity, multiple colors, etc. Also, since the pearlescent pigment for security purposes has aesthetic benefit and security characteristic at the same time, it is economical, easy to use and applicable in various industries.
    Type: Grant
    Filed: September 19, 2018
    Date of Patent: August 9, 2022
    Assignee: CQV CO., LTD.
    Inventors: Kum-sung Cho, Kyung-don Nam, Jae-il Jeong, Kwang-choong Kang, Byung-ki Choi, Kwang-soo Lim, Kil-wan Chang
  • Patent number: 11370923
    Abstract: The present invention relates to a technology for producing a black pearlescent pigment for cosmetics which is a human-friendly and nature-friendly by using a pigment including natural charcoal powder. The production method of the pearlescent pigment using natural charcoal according to the present invention includes (a) milling natural charcoal to produce a pigment including natural charcoal powder; and (b) coating a flake substrate with the produced pigment including the natural charcoal powder, wherein the milling is performed at 20 to 40 Hz for 24 to 72 hours, and an average particle size of the pigment including the natural charcoal powder is 100 to 300 nm.
    Type: Grant
    Filed: October 23, 2017
    Date of Patent: June 28, 2022
    Assignee: CQV CO., LTD.
    Inventors: Kum-Sung Cho, Kwang-Choong Kang, Byung-Ki Choi, Kwang-Soo Lim, Kil-Wan Chang
  • Publication number: 20200354579
    Abstract: A pearlescent pigment for security purposes according to an embodiment of the present invention includes a single or a plurality of coating layers containing a metal oxide and an organic or inorganic fluorescent material. Since the pearlescent pigment for security purposes according to the present disclosure includes a fluorescent layer containing the organic or inorganic fluorescent material, it can be used as a pigment for security purposes due to its optical characteristics and can also provide effects such as magnetism, high color intensity, multiple colors, etc. Also, since the pearlescent pigment for security purposes has aesthetic benefit and security characteristic at the same time, it is economical, easy to use and applicable in various industries.
    Type: Application
    Filed: September 19, 2018
    Publication date: November 12, 2020
    Inventors: Kum-sung CHO, Kyung-don NAM, Jae-il JEONG, Kwang-choong KANG, Byung-ki CHOI, Kwang-soo LIM, Kil-wan CHANG
  • Patent number: 10285918
    Abstract: Disclosed is a cosmetic composition capable of exhibiting various colors, including red, yellow and blue colors. The disclosed cosmetic composition comprises a red, yellow or blue pearlescent pigment prepared by coating a natural pigment on a matrix, so that it is capable of exhibiting various colors.
    Type: Grant
    Filed: October 28, 2014
    Date of Patent: May 14, 2019
    Assignee: CQV CO., LTD.
    Inventors: Kum-Sung Cho, Min Choi, Kwang-Choong Kang, Byung-Ki Choi, Kwang-Soo Lim, Kil-Wan Chang
  • Publication number: 20190002703
    Abstract: The present invention relates to a technology for producing a black pearlescent pigment for cosmetics which is a human-friendly and nature-friendly by using a pigment including natural charcoal powder. The production method of the pearlescent pigment using natural charcoal according to the present invention includes (a) milling natural charcoal to produce a pigment including natural charcoal powder; and (b) coating a flake substrate with the produced pigment including the natural charcoal powder, wherein the milling is performed at 20 to 40 Hz for 24 to 72 hours, and an average particle size of the pigment including the natural charcoal powder is 100 to 300 nm.
    Type: Application
    Filed: October 23, 2017
    Publication date: January 3, 2019
    Applicant: CQV CO., LTD.
    Inventors: Kum-Sung CHO, Kwang-Choong KANG, Byung-Ki CHOI, Kwang-Soo LIM, Kil-Wan CHANG
  • Patent number: 9629796
    Abstract: The present invention relates to a method of preparing a colored gloss pigment using a natural dye. According to the present disclosure, the method may include preparing a dye from a dye material of natural dyes; titrating the dye with an inorganic salt solution and subsequently adjusting a pH neutral to prepare a natural pigment containing the dye; dispersing a substrate coated with a metal oxide into a DI water to form a substrate suspension; and introducing a pH adjusting agent and the natural pigment into the substrate suspension to coat a surface of the substrate with the natural pigment.
    Type: Grant
    Filed: October 28, 2014
    Date of Patent: April 25, 2017
    Assignee: CQV CO., LTD.
    Inventors: Min Choi, Kum-Sung Cho, Kwang-Choong Kang, Byung-Ki Choi, Kwang-Soo Lim, Kil-Wan Chang
  • Publication number: 20160361241
    Abstract: Disclosed is a cosmetic composition capable of exhibiting various colors, including red, yellow and blue colors. The disclosed cosmetic composition comprises one or more pigments selected from among a natural pigment, a red, yellow or blue pearlescent pigment prepared by coating a natural pigment on a matrix, and a red, yellow or blue pearlescent pigment prepared by coating a metal oxide on a matrix, so that it is capable of exhibiting various colors.
    Type: Application
    Filed: October 28, 2014
    Publication date: December 15, 2016
    Inventors: Kum-Sung CHO, Min CHOI, Kwang-Choong KANG, Byung-Ki CHOI, Kwang-Soo LIM, Kil-Wan CHANG
  • Publication number: 20160271052
    Abstract: The present invention relates to a method of preparing a colored gloss pigment using a natural dye. According to the present disclosure, the method may include preparing a dye from a dye material of natural dyes; titrating the dye with an inorganic salt solution and subsequently adjusting a pH neutral to prepare a natural pigment containing the dye; dispersing a substrate coated with a metal oxide into a DI water to form a substrate suspension; and introducing a pH adjusting agent and the natural pigment into the substrate suspension to coat a surface of the substrate with the natural pigment.
    Type: Application
    Filed: October 28, 2014
    Publication date: September 22, 2016
    Inventors: Min CHOI, Kum-Sung CHO, Kwang-Choong KANG, Byung-Ki CHOI, Kwang-Soo LIM, Kil-Wan CHANG