Patents by Inventor Lijin LI

Lijin LI 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: 10718788
    Abstract: An electronic product test jig includes a key testing unit and a circuit testing unit. The key testing unit includes: an X-axis mechanical arm, a Y-axis mechanical arm, a depression mechanical arm that are connected in succession; wherein the X-axis mechanical arm; and a key depression test head disposed at one end of the depression mechanical arm. The X-axis mechanical arm, the Y-axis mechanical arm, and the depression mechanical arm are configured to drive the key depression test head to move and fall over key positions of a product under test so as to complete the test of keys through the key depression test head. A pressure sensor is disposed on the key depression test head.
    Type: Grant
    Filed: March 18, 2016
    Date of Patent: July 21, 2020
    Assignee: SHENZHEN ULMT TECHNOLOGY CO., LTD
    Inventors: Lijin Li, Daoxu Zheng
  • Publication number: 20190004087
    Abstract: An electronic product test jig includes a key testing unit and a circuit testing unit. The key testing unit includes: an X-axis mechanical arm, a Y-axis mechanical arm, a depression mechanical arm that are connected in succession; wherein the X-axis mechanical arm; and a key depression test head disposed at one end of the depression mechanical arm. The X-axis mechanical arm, the Y-axis mechanical arm, and the depression mechanical arm are configured to drive the key depression test head to move and fall over key positions of a product under test so as to complete the test of keys through the key depression test head. A pressure sensor is disposed on the key depression test head.
    Type: Application
    Filed: March 18, 2016
    Publication date: January 3, 2019
    Applicant: SHENZHEN ULMT TECHNOLOGY CO., LTD
    Inventors: Lijin LI, Daoxu ZHENG