Patents by Inventor Yonghai Yue

Yonghai Yue 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: 8569714
    Abstract: A double tilt sample holder for in-situ measuring mechanical and electrical properties of microstructures in transmission electron microscope (TEM) is provided. The sample holder includes a home-made hollow sample holder body, a sensor for measuring mechanical/electrical properties, a pressing piece, a sample holder head, a sensor carrier. The sensor for measuring mechanical/electrical properties is fixed on the sensor carrier on the sample holder head by the pressing piece, while the sensor carrier is connected to the sample holder head through a pair of supporting shafts located on sides of the sample holder head. The sensor carrier can tilt within the plane perpendicular to the ample holder head by revolving around the supporting shafts (i.e. tilting along Y axis at an angle of ±30°). The sample holder also allows obtaining mechanical/electrical parameters concurrently.
    Type: Grant
    Filed: July 11, 2011
    Date of Patent: October 29, 2013
    Assignee: Beijing University of Technology
    Inventors: Xiaodong Han, Yonghai Yue, Yuefei Zhang, Pan Liu, Kun Zheng, Xiaodong Wang, Ze Zhang
  • Publication number: 20130105706
    Abstract: A double tilt sample holder for in-situ measuring mechanical and electrical properties of microstructures in transmission electron microscope (TEM) is provided. The sample holder includes a home-made hollow sample holder body, a sensor for measuring mechanical/electrical properties, a pressing piece, a sample holder head, a sensor carrier. The sensor for measuring mechanical/electrical properties is fixed on the sensor carrier on the sample holder head by the pressing piece, while the sensor carrier is connected to the sample holder head through a pair of supporting shafts located on sides of the sample holder head. The sensor carrier can tilt within the plane perpendicular to the ample holder head by revolving around the supporting shafts (i.e. tilting along Y axis at an angle of ±30°). The sample holder also allows obtaining mechanical/electrical parameters concurrently.
    Type: Application
    Filed: July 11, 2011
    Publication date: May 2, 2013
    Applicant: BEIJING UNIVERSITY OF TECHNOLOGY
    Inventors: Xiaodong Han, Yonghai Yue, Yuefei Zhang, Pan Liu, Kun Zheng, Xiaodong Wang, Ze Zhang
  • Patent number: 8302494
    Abstract: A sensor for quantitative testing electromechanical properties and microstructure of nano-materials and a manufacturing method for the sensor are provided. The sensor comprises a suspended structure, pressure-sensitive resistor cantilevers, support beams, bimetallic strip and other components. When the bimetallic strip produces bending deformation, one of the pressure-sensitive resistor cantilevers is actuated and then stretches the low-dimensional nano-materials which drive the other pressure-sensitive resistor cantilever to bend. Through signal changes are outputted by the Wheatstone bridge, the variable stresses of low-dimensional nano-materials are obtained. Meanwhile, the variable strains of low-dimensional nano-materials are obtained by the horizontal displacements between two cantilevers, so the stress-strain curves of low-dimensional nano-materials are worked out. When the low-dimensional nano-materials are measured in the power state, the voltage-current curves are also obtained.
    Type: Grant
    Filed: April 7, 2010
    Date of Patent: November 6, 2012
    Assignee: Beijing University of Technology
    Inventors: Xiaodong Han, Pan Liu, Yonghai Yue, Ze Zhang
  • Patent number: 8069733
    Abstract: A device for measuring electromechanical properties and microstructure of nano-materials under stress state comprises two bimetallic strips placed on an insulated metal ring plated with insulating paint, wherein the two bimetallic strips are placed in parallel or V-shaped to insulated metal ring on the same plane, one end of each bimetallic strip is fixed on the insulated metal ring, the other end of the bimetallic strip hangs inside of the insulated ring, the distance of two bimetallic strips were controlled within 0.002-1 mm. Also provided is a method for measuring electromechanical properties and microstructure of nano-materials under stress state.
    Type: Grant
    Filed: December 7, 2009
    Date of Patent: December 6, 2011
    Assignee: Beijing University of Technology
    Inventors: Xiaodong Han, Pan Liu, Yuefei Zhang, Yonghai Yue, Ze Zhang
  • Publication number: 20110107472
    Abstract: A sensor for quantitative test electromechanical properties and microstructure of nano-materials and a manufacturing method for the sensor are provided. The sensor comprises a suspended structure, pressure-sensitive resistor cantilevers, support beams, bimetallic strip and other components. When the bimetallic strip produces bending deformation, one of the pressure-sensitive resistor cantilevers is actuated and then stretches the low-dimensional nano-materials which drive the other pressure-sensitive resistor cantilever to bend. Through signal changes are outputted by the Wheatstone bridge, the variable stresses of low-dimensional nano-materials are obtained. Meanwhile, the variable strains of low-dimensional nano-materials are obtained by the horizontal displacements between two cantilevers, so the stress-strain curves of low-dimensional nano-materials are worked out. When the low-dimensional nano-materials are measured in the power state, the voltage-current curves are also obtained.
    Type: Application
    Filed: April 7, 2010
    Publication date: May 5, 2011
    Applicant: BEIJING UNIVERSITY OF TECHNOLOGY
    Inventors: XIAODONG HAN, PAN LIU, YONGHAI YUE, ZE ZHANG
  • Publication number: 20100154557
    Abstract: A device for measuring electromechanical properties and microstructure of nano-materials under stress state comprises two bimetallic strips placed on an insulated metal ring plated with insulating paint, wherein the two bimetallic strips are placed in parallel or V-shaped to insulated metal ring on the same plane, one end of each bimetallic strip is fixed on the insulated metal ring, the other end of the bimetallic strip hangs inside of the insulated ring, the distance of two bimetallic strips were controlled within 0.002-1 mm. Also provided is a method for measuring electromechanical properties and microstructure of nano-materials under stress state.
    Type: Application
    Filed: December 7, 2009
    Publication date: June 24, 2010
    Applicant: BEIJING UNIVERSITY OF TECHNOLOGY
    Inventors: Xiaodong Han, Pan Liu, Yuefei Zhang, Yonghai Yue, Ze Zhang