Patents by Inventor Anna Chin

Anna Chin 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).

  • Liquid electrostatic ink developer assembly
    Patent number: 11181849
    Abstract: Described herein is a liquid electrostatic ink developer assembly comprising a developer roller having a surface coating, the surface coating comprising a polyurethane resin formed from a polyol; a hydroxyl-terminated polysiloxane; and a polyisocyanate. Also, described herein is a liquid electrostatic printing apparatus comprising the liquid electrostatic ink developer assembly.
    Type: Grant
    Filed: June 28, 2017
    Date of Patent: November 23, 2021
    Assignee: HP Indigo B.V.
    Inventors: Anna Chin, Daniel Tanchangco, Bin Huang, Guang Jin Li, Kai-Kong Iu
  • LIQUID ELECTROSTATIC INK DEVELOPER ASSEMBLY
    Publication number: 20200019088
    Abstract: Described herein is a liquid electrostatic ink developer assembly comprising a developer roller having a surface coating, the surface coating comprising a polyurethane resin formed from a polyol; a hydroxyl-terminated polysiloxane; and a polyisocyanate. Also, described herein is a liquid electrostatic printing apparatus comprising the liquid electrostatic ink developer assembly.
    Type: Application
    Filed: June 28, 2017
    Publication date: January 16, 2020
    Inventors: Anna Chin, Daniel Tanchangco, Bin Huang, Guang Jin Li, Kai-Kong Iu