Patents by Inventor Tianjun LI

Tianjun 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: 12261016
    Abstract: Provided are an electron detection device and a scanning electron microscope. The electron detection device includes: a reflective energy analyzer including first and second control electrodes that are sequentially arranged in an incidence direction of an electron beam; a first detector disposed at a side of the second control electrode away from the first control electrode; a second detector disposed at a side of the first control electrode away from the second control electrode; and a conductive shielding tube penetrating the first and second control electrodes in the incidence direction and configured to shield an electric field generated by the reflective energy analyzer, allowing the electron beam to pass through and be incident on the target sample. First control electrode is configured to generate a first electric field between the first and second control electrodes. The first electric field is configured to guide the secondary electron to the first detector.
    Type: Grant
    Filed: January 3, 2025
    Date of Patent: March 25, 2025
    Assignee: CIQTEK CO., LTD.
    Inventors: Da Yin, Tianjun Li, Bin Sun, Wei Zhang, Feng Cao, Yu He
  • Publication number: 20220344646
    Abstract: An electrochemical device includes: a positive electrode; a separator; and a negative electrode. The negative electrode includes a negative electrode current collector and a negative electrode active material layer. The negative electrode active material layer includes a negative electrode active material. The negative electrode active material layer includes a first negative electrode active material layer. When the electrochemical device is at a fully discharged state (0% SOC), the first negative electrode active material layer includes a first region and at least one second region. The first region is continuous as a whole, and at least a part of the second region is surrounded by the first region.
    Type: Application
    Filed: July 6, 2022
    Publication date: October 27, 2022
    Inventor: Tianjun LI