Patents by Inventor Ya-Ching Yu

Ya-Ching Yu 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).

  • Reactive dye
    Patent number: 8536329
    Abstract: A reactive dye is disclosed. The reactive dye has the structure of formula (I): wherein X, R1, R2, R3, n, Q1, Q2 and (HO3S)1-3 are defined in the specification. The reactive dye of the present invention has great build-up property, reproducibility and fastness.
    Type: Grant
    Filed: April 5, 2012
    Date of Patent: September 17, 2013
    Assignee: Everlight USA, Inc.
    Inventors: Chien-Yu Chen, Chen-Lung Kao, Ya-Ching Yu, Huei-Chin Huang
  • REACTIVE DYE
    Publication number: 20120264922
    Abstract: A reactive dye is disclosed. The reactive dye has the structure of formula (I): wherein X, R1, R2, R3, n, Q1, Q2 and (HO3S)1-3 are defined in the specification. The reactive dye of the present invention has great build-up property, reproducibility and fastness.
    Type: Application
    Filed: April 5, 2012
    Publication date: October 18, 2012
    Applicant: EVERLIGHT USA, INC.
    Inventors: Chien-Yu Chen, Chen-Lung Kao, Ya-Ching Yu, Huei-Chin Huang