Patents by Inventor Donggui Yu

Donggui 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).

  • Patent number: 9519845
    Abstract: A gravity-adaptive card separation mechanism, which keeps the friction forces of stacked hard cards basically consistent. The mechanism is arranged on a storage box for storing stacked hard cards, and is used for separating the hard cards individually.
    Type: Grant
    Filed: February 13, 2014
    Date of Patent: December 13, 2016
    Assignee: GRG Huitong Financial Services Co., Ltd.
    Inventors: Junhua Liu, Zeyan Guan, Donggui Yu, Qing Liao
  • Publication number: 20160092756
    Abstract: A gravity-adaptive card separation mechanism, which keeps the friction forces of stacked hard cards basically consistent. The mechanism is arranged on a storage box for storing stacked hard cards, and is used for separating the hard cards individually.
    Type: Application
    Filed: February 13, 2014
    Publication date: March 31, 2016
    Applicant: GRG Huitong Financial Services Co., Ltd.
    Inventors: Junhua Liu, Zeyan Guan, Donggui Yu, Qing Liao