Patents by Inventor Lanlan Cheng

Lanlan Cheng 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).

  • Toner and method for its preparation
    Patent number: 9005866
    Abstract: Disclosed are a toner and a preparation method thereof. The toner of the invention has honeycomb-shaped core-shell structured particles. The honeycomb-shaped core-shell structured particles comprise two or more core layers. Each core layer is completely covered by a shell layer.
    Type: Grant
    Filed: May 31, 2011
    Date of Patent: April 14, 2015
    Assignee: ICMI (China) Limited
    Inventors: Lanlan Cheng, Xiushan Zhang, Fugen Tang
  • TONER AND METHOD FOR ITS PREPARATION
    Publication number: 20130316281
    Abstract: Disclosed are a toner and a preparation method thereof. The toner of the invention has honeycomb-shaped core-shell structured particles. The honeycomb-shaped core-shell structured particles comprise two or more core layers. Each core layer is completely covered by a shell layer.
    Type: Application
    Filed: May 31, 2011
    Publication date: November 28, 2013
    Applicant: ICMI (CHINA) LIMITED
    Inventors: Lanlan Cheng, Xiushan Zhang, Fugen Tang