Patents by Inventor Hong-Jiang Li

Hong-Jiang 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).

  • Method for making electrostrictive composite
    Patent number: 9054312
    Abstract: A method for making an electrostrictive composite includes the following steps. Carbon nanotubes and a first polymer precursor are mixed. The first carbon nanotubes and the polymer precursor are polymerized to obtain a first material layer. A second material layer is applied to the first material layer, wherein the thermal expansion coefficient of the first material layer is different from the thermal expansion coefficient of the second material layer.
    Type: Grant
    Filed: April 24, 2013
    Date of Patent: June 9, 2015
    Assignees: Tsinghua University, HON HAI PRECISION INDUSTRY CO., LTD.
    Inventors: Lu-Zhuo Chen, Chang-Hong Liu, Hong-Jiang Li, Shou-Shan Fan
  • METHOD FOR MAKING ELECTROSTRICTIVE COMPOSITE
    Publication number: 20130233475
    Abstract: A method for making an electrostrictive composite includes the following steps. Carbon nanotubes and a first polymer precursor are mixed. The first carbon nanotubes and the polymer precursor are polymerized to obtain a first material layer. A second material layer is applied to the first material layer, wherein the thermal expansion coefficient of the first material layer is different from the thermal expansion coefficient of the second material layer.
    Type: Application
    Filed: April 24, 2013
    Publication date: September 12, 2013
    Applicants: HON HAI PRECISION INDUSTRY CO., LTD., TSINGHUA UNIVERSITY
    Inventors: LU-ZHUO CHEN, CHANG-HONG LIU, HONG-JIANG LI, SHOU-SHAN FAN
  • Electrostrictive composite, method for making the same and electrothermic type actuator
    Patent number: 8450903
    Abstract: An electrostrictive composite includes a first material layer and a second material layer. The first material layer and the second material layer are stacked to each other. The thermal expansion coefficients of the first material layer and the second material layer are different. The first material layer includes a polymer matrix and a plurality of carbon nanotubes dispersed therein. Also an electrothermic type actuator using the electrostrictive composite is provided.
    Type: Grant
    Filed: July 6, 2009
    Date of Patent: May 28, 2013
    Assignees: Tsinghua University, Hon Hai Precision Industry Co., Ltd.
    Inventors: Lu-Zhuo Chen, Chang-Hong Liu, Hong-Jiang Li, Shou-Shan Fan
  • Method for making a thermal interface material having carbon nanotube array
    Patent number: 7799252
    Abstract: A method for making a thermal interface material includes: providing a CNT array on a substrate; providing a first solution with organic matter and ferric ion; soaking the CNT array into the first solution for a period of time; dipping a second solution into the first solution to form a ferric salt deposit; taking out the CNT array, and then heating the CNT array in inert gas; and cooling and peeling off the CNT array from the substrate, and finally achieving a thermal interface material. The thermal interface material made by the present method has a high heat conducting efficiency.
    Type: Grant
    Filed: December 29, 2007
    Date of Patent: September 21, 2010
    Assignees: Tsinghua University, Hon Hai Precision Industry Co., Ltd.
    Inventors: Chang-Hong Liu, Hong-Jiang Li, Shou-Shan Fan
  • ELECTROSTRICTIVE COMPOSITE, METHOD FOR MAKING THE SAME AND ELECTROTHERMIC TYPE ACTUATOR
    Publication number: 20100213790
    Abstract: An electrostrictive composite includes a first material layer and a second material layer. The first material layer and the second material layer are stacked to each other. The thermal expansion coefficients of the first material layer and the second material layer are different. The first material layer includes a polymer matrix and a plurality of carbon nanotubes dispersed therein. Also an electrothermic type actuator using the electrostrictive composite is provided.
    Type: Application
    Filed: July 6, 2009
    Publication date: August 26, 2010
    Applicants: TSINGHUA UNIVERSITY, HON HAI PRECISION INDUSTRY CO., LTD.
    Inventors: LU-ZHUO CHEN, CHANG-HONG LIU, HONG-JIANG LI, SHOU-SHAN FAN
  • Thermal interface material having carbon nanotube array and method for making the same
    Publication number: 20090117279
    Abstract: A method for making a thermal interface material includes: providing a CNT array on a substrate; providing a first solution with organic matter and ferric ion; soaking the CNT array into the first solution for a period of time; dipping a second solution into the first solution to form a ferric salt deposit; taking out the CNT array, and then heating the CNT array in inert gas; and cooling and peeling off the CNT array from the substrate, and finally achieving a thermal interface material. The thermal interface material made by the present method has a high heat conducting efficiency.
    Type: Application
    Filed: December 29, 2007
    Publication date: May 7, 2009
    Inventors: Chang-Hong Liu, Hong-Jiang Li, Shou-Shan Fan