Heterocyclic Color-forming Material Patents (Class 205/55)
  • Two-electron donating phenothiazines and use thereof
    Patent number: 10954201
    Abstract: Compounds for use as electrolyte in a non-aqueous redox battery are provided, including an N-substituted phenothiazine compound according to the formula: R? is alkyl and R is selected from alkyl, aryl, alkylaryl, alkoxyaryl, alkylcarboxyl, arylcarbonyl, haloalkyl, perfluoroalkyl, glycol, polyether, haloaryl, a negative electrolyte, a polymerizable unit, and a polymer.
    Type: Grant
    Filed: August 22, 2017
    Date of Patent: March 23, 2021
    Assignee: University of Kentucky Research Foundation
    Inventors: Susan A. Odom, Aman Preet Kaur, Matthew D. Casselman, N. Harsha Attanayake
  • Heterocyclic compound and organic light-emitting element using same
    Patent number: 10032997
    Abstract: The present specification provides a heterocyclic compound and an organic light emitting device using the same.
    Type: Grant
    Filed: September 29, 2014
    Date of Patent: July 24, 2018
    Assignee: LG CHEM, LTD.
    Inventors: Minyoung Kang, Dong Hoon Lee, Boonjae Jang, Jungi Jang, Seong So Kim
  • Electrochromic printing medium
    Patent number: 5141622
    Abstract: An electrochromic printing medium comprising a solid support having an electrochromic composition coated thereon comprising an electrolyte matrix, a radiation-inert ionically conducting liquid, and an ionizable alkali or ammonium slat; a method for preparing such medium; and a method for forming an image employing such electrochromic printing medium.
    Type: Grant
    Filed: October 29, 1991
    Date of Patent: August 25, 1992
    Assignee: The Mead Corporation
    Inventors: Denis G. Fauteux, Dale R. Shackle, Jefferis R. Canan