Patents by Inventor HyeonKook Lee

HyeonKook 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).

  • Blue phthalocyanine pigment composition and its preparation
    Patent number: 7905952
    Abstract: The invention pertains to pigment compositions comprising from 70 to 93%, preferably from 81 to 93%, of e copper phthalocyanine, from to 18% of an aminomethyl-substituted phthalocyanine, from 2 to 15% of an ammonium sulfonato phthalocyanine and less than 2% of other phthalocyanine compounds, preferably 5 made by wet-milling a mixture of a copper phthalocyanine and e copper phthalocyanine together with the aminomethyl-substituted phthalocyanine and a milling aid in an organic liquid and adding the ammonium sulfonato phthalocyanine before the milling aid and the organic liquid are separated from the wet-milled mixture.
    Type: Grant
    Filed: January 28, 2008
    Date of Patent: March 15, 2011
    Assignee: BASF SE
    Inventors: HyeonKook Lee, JangWon Jung, Takashi Deno, Masaki Ohwa
  • BLUE PHTHALOCYANINE PIGMENT COMPOSITION AND ITS PREPARATION
    Publication number: 20090293769
    Abstract: The invention pertains to pigment compositions comprising from 70 to 93%, preferably from 81 to 93%, of e copper phthalocyanine, from to 18% of an aminomethyl-substituted phthalocyanine, from 2 to 15% of an ammonium sulfonato phthalocyanine and less than 2% of other phthalocyanine compounds, preferably 5 made by wet-milling a mixture of a copper phthalocyanine and e copper phthalocyanine together with the aminomethyl-substituted phthalocyanine and a milling aid in an organic liquid and adding the ammonium sulfonato phthalocyanine before the milling aid and the organic liquid are separated from the wet-milled mixture.
    Type: Application
    Filed: January 28, 2008
    Publication date: December 3, 2009
    Applicant: CIBA CORPORATION
    Inventors: Hyeonkook Lee, JangWon Jung, Takashi Deno, Masaki Ohwa