Patents by Inventor Feng-Hung Lo

Feng-Hung Lo 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).

  • Yellow dye compound and ink composition comprising the same
    Patent number: 7513943
    Abstract: A yellow dye compound having a structure of following formula (I) is disclosed: wherein R1, R2, R3, and R4, is defined the same as in the specification. The yellow dye compound can be used in ink-jet ink. Also disclosed is a yellow ink composition including the yellow dye compound having the above formula (I).
    Type: Grant
    Filed: October 24, 2007
    Date of Patent: April 7, 2009
    Assignee: Everlight USA, Inc.
    Inventors: Chien-Wen Lee, Shih-Hung Wang, Feng-Hung Lo, Tzu-Kwei Sun
  • Yellow dye compound and ink composition comprising the same
    Publication number: 20090056586
    Abstract: A yellow dye compound having a structure of following formula (I) is disclosed: wherein R1, R2, R3, and R4, is defined the same as in the specification. The yellow dye compound can be used in ink-jet ink. Also disclosed is a yellow ink composition including the yellow dye compound having the above formula (I).
    Type: Application
    Filed: October 24, 2007
    Publication date: March 5, 2009
    Applicant: Everlight USA, Inc.
    Inventors: Chien-Wen Lee, Shih-Hung Wang, Feng-Hung Lo, Tzu-Kwei Sun