Patents by Inventor Kaimin Cao

Kaimin Cao 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).

  • Publication number: 20230088408
    Abstract: A transduction unit of a non-contact human sleep physiological parameter detection sensor includes a circuit board, a piezoelectric film and conductive adhesives, wherein the piezoelectric film includes a film sheet and two electrodes, which are respectively arranged on two side faces of the film sheet; the piezoelectric film is attached to the circuit board; and the two electrodes of the piezoelectric film are respectively electrically connected to two exposed pad electrodes on the circuit board by means of the conductive adhesives.
    Type: Application
    Filed: March 2, 2021
    Publication date: March 23, 2023
    Inventors: Huafeng Shan, Kaimin Cao, Jiadong Wang, Hongwen Li, Xiuping Han, Xin Jin
  • Patent number: 11243111
    Abstract: Disclosed is an integrated physiological signal detection sensor, comprising a movable housing member, a fixed housing member, and a sensing unit circuit board. The movable housing member and the fixed housing member are connected to form an internal space therebetween. The sensing unit circuit board is fixedly installed on the fixed housing member within the space. A piezoelectric film is attached to the sensing unit circuit board. A hollowed-out region surrounds the periphery of the piezoelectric film. A protrusion is provided on the movable housing member at a position corresponding to the piezoelectric film. The sensor of the present invention has advantages of simplified sensor installation, improved signal integrity, and simplified wire routing of an electromagnetic shield layer, thereby eliminating errors caused by sensor installation and improving the accuracy of data detection.
    Type: Grant
    Filed: August 1, 2018
    Date of Patent: February 8, 2022
    Assignees: Keeson Technology Corporation Limited, ZHEJIANG YANGTZE DELTA REGION INSTITUTE OF TSINGHUA UNIVERSITY
    Inventors: Huafeng Shan, Jiadong Wang, Kaimin Cao, Hongwen Li, Yuan Yu
  • Publication number: 20210215533
    Abstract: Disclosed is an integrated physiological signal detection sensor, comprising a movable housing member, a fixed housing member, and a sensing unit circuit board. The movable housing member and the fixed housing member are connected to form an internal space therebetween. The sensing unit circuit board is fixedly installed on the fixed housing member within the space. A piezoelectric film is attached to the sensing unit circuit board. A hollowed-out region surrounds the periphery of the piezoelectric film. A protrusion is provided on the movable housing member at a position corresponding to the piezoelectric film. The sensor of the present invention has advantages of simplified sensor installation, improved signal integrity, and simplified wire routing of an electromagnetic shield layer, thereby eliminating errors caused by sensor installation and improving the accuracy of data detection.
    Type: Application
    Filed: August 1, 2018
    Publication date: July 15, 2021
    Applicants: Keeson Technology Corporation Limited, ZHEJIANG YANGTZE DELTA REGION INSTITUTE OF TSINGHUA UNIVERSITY
    Inventors: Huafeng Shan, Jiadong Wang, Kaimin Cao, Hongwen Li, Yuan Yu