Patents by Inventor Pu Liang

Pu Liang 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: 10967660
    Abstract: The present invention embraces a method and apparatus for improving ribbon replacement for thermal printers. The present invention also applies to replacement of other media in associated printers. The improvement is achieved based a ribbon adapter or media adapter that is designed for two conditions: 1) catch condition for printing, and 2) release condition for replacing the media in the printer. By a single click or press of a button, a user can switch between the two conditions. The printing operation occurs during the catch condition. The catch condition ensures that there is no or little relative movement between media core and media adapter. The media adapter can also support different diameter media cores. The release condition is implemented when the user replaces media. The release condition can provide a relatively easy replacement of a media without a significant force or pressure.
    Type: Grant
    Filed: April 24, 2018
    Date of Patent: April 6, 2021
    Assignee: DATAMAX-O'NEIL CORPORATION
    Inventors: Yinting Ji, Pu Liang
  • Publication number: 20180326765
    Abstract: The present invention embraces a method and apparatus for improving ribbon replacement for thermal printers. The present invention also applies to replacement of other media in associated printers. The improvement is achieved based a ribbon adapter or media adapter that is designed for two conditions: 1) catch condition for printing, and 2) release condition for replacing the media in the printer. By a single click or press of a button, a user can switch between the two conditions. The printing operation occurs during the catch condition. The catch condition ensures that there is no or little relative movement between media core and media adapter. The media adapter can also support different diameter media cores. The release condition is implemented when the user replaces media. The release condition can provide a relatively easy replacement of a media without a significant force or pressure.
    Type: Application
    Filed: April 24, 2018
    Publication date: November 15, 2018
    Inventors: Yinting Ji, Pu Liang