Patents by Inventor Weifeng Yan

Weifeng Yan 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: 11930595
    Abstract: The present application provides a circuit material and a circuit board containing the same. The circuit material comprises a conductive metal layer and a dielectric substrate layer, and an adhesive layer arranged therebetween, wherein the adhesive layer is made of a material which comprises an adhesive composition comprising a resin component and a non-resin component, wherein the resin component is composed of unsaturated polyphenylene ether resin, SBS resin and maleimide resin; and the non-resin component comprises an initiator; and the adhesive layer is obtained by applying the adhesive composition dissolved in a solvent onto the surface of the conductive metal layer or the dielectric substrate layer in the form of a solution, or by applying to a release material and removing the release material after partially curing or completely curing.
    Type: Grant
    Filed: January 29, 2021
    Date of Patent: March 12, 2024
    Assignee: Shengyi Technology Co., Ltd.
    Inventors: Weifeng Yin, Cui Huo, Rui Liu, Yongjing Xu, Shanyin Yan
  • Patent number: D504393
    Type: Grant
    Filed: December 17, 2003
    Date of Patent: April 26, 2005
    Assignee: Ningbo Lanbao Electric Appliance Co., LTD
    Inventor: Weifeng Yan
  • Patent number: D561372
    Type: Grant
    Filed: August 10, 2005
    Date of Patent: February 5, 2008
    Inventor: Weifeng Yan
  • Patent number: D561373
    Type: Grant
    Filed: August 10, 2005
    Date of Patent: February 5, 2008
    Inventor: Weifeng Yan