Patents by Inventor Yusen DUAN

Yusen DUAN 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).

  • SILICON NITRIDE CERAMIC MATERIAL FOR MOBILE PHONE REAR COVER AND PREPARATION METHOD THEREFOR
    Publication number: 20220041512
    Abstract: A silicon nitride ceramic material for a mobile phone rear cover and a preparation method therefor. The method comprises: using a mixture of a silicon source, a colorant, and a sintering aid as raw materials, mixing the raw material components, and performing shaping and sintering to obtain the silicon nitride ceramic material. The toughness of the silicon nitride ceramic material can reach more than 12 MPa·m1/2; the thermal conductivity thereof can reach 40 to 70 W/m·K; and a dielectric loss thereof is 10?4.
    Type: Application
    Filed: August 30, 2019
    Publication date: February 10, 2022
    Inventors: Jingxian ZHANG, Yusen DUAN, Ning LIU, Ruixin MA, Dongliang JIANG