Patents by Inventor Chenhai ZHAO

Chenhai ZHAO 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).

  • Ink cartridge having inner container and processing method therefor
    Patent number: 11440328
    Abstract: The present application discloses an inner container type ink cartridge and a manufacturing method thereof. The manufacturing method includes the following steps: removing an upper cover of an original ink cartridge to obtain a cartridge shell; electrically connecting an external control circuit board with an original control circuit board of the original ink cartridge; arranging an internal control circuit board at a corresponding position of an inner container; and installing the inner container in the cartridge shell, so that internal contacts of the internal control circuit board of the inner container are electrically connected with the external control circuit board. A first chip of the external control circuit board or a second chip of the internal control circuit board is written with actual ink volume data of the inner container and an adopted program.
    Type: Grant
    Filed: January 23, 2020
    Date of Patent: September 13, 2022
    Assignee: SPEED INFOTECH (BEIHAI) COMPANY LIMITED
    Inventors: Chenhai Zhao, Baohai Li
  • INK CARTRIDGE HAVING INNER CONTAINER AND PROCESSING METHOD THEREFOR
    Publication number: 20220143983
    Abstract: The present application discloses an inner container type ink cartridge and a manufacturing method thereof. The manufacturing method includes the following steps: removing an upper cover of an original ink cartridge to obtain a cartridge shell; electrically connecting an external control circuit board with an original control circuit board of the original ink cartridge; arranging an internal control circuit board at a corresponding position of an inner container; and installing the inner container in the cartridge shell, so that internal contacts of the internal control circuit board of the inner container are electrically connected with the external control circuit board. A first chip of the external control circuit board or a second chip of the internal control circuit board is written with actual ink volume data of the inner container and an adopted program.
    Type: Application
    Filed: January 23, 2020
    Publication date: May 12, 2022
    Inventors: Chenhai ZHAO, Baohai LI