Patents by Inventor KUI-YANG LI

KUI-YANG 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).

  • Graphene serving as cathode of X-ray tube and X-ray tube thereof
    Patent number: 9734980
    Abstract: Graphene serving as the cathode of an X-ray tube, and a high-efficiency graphene cathode field emission X-ray tube. The graphene cathode field emission X-ray tube is high in conversion efficiency and less in stray radiation, reduces radiation dosage acting upon human body when used in the fields of medical treatment, security inspection and the like; the graphene cathode field emission X-ray tube is easy to realize a micro-focus X-ray tube, strong in emissive power and high in voltage resistance, and can be applied to the fields of semiconductor detection, industrial flaw detection and the like; in addition, the graphene cathode field emission X-ray tube is good in controllability, free from cathode heating. The graphene cathode field emission X-ray tube also has the characteristics of good stability and long service life.
    Type: Grant
    Filed: February 13, 2014
    Date of Patent: August 15, 2017
    Assignee: CHONGQING QIYUEYONGYANG MICROELECTRONIC SCIENCE & TECHNOLOGY DEVELOPMENT CO., LTD.
    Inventor: Kui-Yang Li
  • GRAPHENE SERVING AS CATHODE OF X-RAY TUBE AND X-RAY TUBE THEREOF
    Publication number: 20160079029
    Abstract: Graphene serving as the cathode of an X-ray tube, and a high-efficiency graphene cathode field emission X-ray tube. The graphene cathode field emission X-ray tube is high in conversion efficiency and less in stray radiation, reduces radiation dosage acting upon human body when used in the fields of medical treatment, security inspection and the like; the graphene cathode field emission X-ray tube is easy to realize a micro-focus X-ray tube, strong in emissive power and high in voltage resistance, and can be applied to the fields of semiconductor detection, industrial flaw detection and the like; in addition, the graphene cathode field emission X-ray tube is good in controllability, free from cathode heating. The graphene cathode field emission X-ray tube also has the characteristics of good stability and long service life.
    Type: Application
    Filed: February 13, 2014
    Publication date: March 17, 2016
    Inventor: KUI-YANG LI