Patents by Inventor Mei Zhao

Mei Zhao 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: 9020609
    Abstract: An electrode lead of a pacemaker includes at least one lead wire including at least one composite conductive core. The at least one composite conductive core includes at least one conductive core and at least one carbon nanotube yarn spirally wound on an outer surface of the at least one conductive core. The at least one carbon nanotube yarn includes a number of carbon nanotubes joined end to end by van der Waals attractive forces. The pacemaker includes a pulse generator and the electrode lead electrically connected to the pulse generator.
    Type: Grant
    Filed: June 20, 2012
    Date of Patent: April 28, 2015
    Assignees: Tsinghua University, Hon Hai Precision Industry Co., Ltd.
    Inventors: Li Fan, Chen Feng, Wen-Mei Zhao, Liang Liu, Yu-Quan Wang, Li Qian
  • Patent number: 9006088
    Abstract: A method for forming a semiconductor gate structure and a semiconductor gate structure are provided. The method includes: providing a substrate with a Ge layer as a surface thereof; forming a Sn layer on the Ge layer, in which an interface between the Ge layer and the Sn layer is a GeSn layer; removing the Sn layer to expose the GeSn layer; forming a GeSnOx passivation layer by performing an oxidation treatment for the GeSn layer, or forming a GeSnN or GeSnON passivation layer by performing a passivation treatment for the GeSn layer; and forming a gate stack on the GeSnOx , GeSnN or GeSnON passivation layer.
    Type: Grant
    Filed: June 14, 2013
    Date of Patent: April 14, 2015
    Assignee: Tsinghua University
    Inventors: Mei Zhao, Renrong Liang, Jing Wang, Jun Xu
  • Patent number: 8900866
    Abstract: A method for forming a nerve graft includes the following steps. A carbon nanotube structure is provided. A hydrophilic layer is formed on a surface of the carbon nanotube structure. The hydrophilic layer is polarized to form a polar surface on the hydrophilic layer. A number of neurons are formed on the polar surface of the hydrophilic layer to form a nerve network. The neurons connect with each other.
    Type: Grant
    Filed: January 13, 2012
    Date of Patent: December 2, 2014
    Assignees: Tsinghua University, Hon Hai Precision Industry Co., Ltd.
    Inventors: Chen Feng, Li Fan, Wen-Mei Zhao
  • Patent number: 8900867
    Abstract: A method for forming a culture medium includes the following steps. A carbon nanotube structure is provided. A hydrophilic layer is formed on a surface of the carbon nanotube structure. The hydrophilic layer is polarized to form a polar surface on the hydrophilic layer. A number of neurons are formed on the polar surface of the hydrophilic layer.
    Type: Grant
    Filed: January 13, 2012
    Date of Patent: December 2, 2014
    Assignees: Tsinghua University, Hon Hai Precision Industry Co., Ltd.
    Inventors: Chen Feng, Li Fan, Wen-Mei Zhao
  • Patent number: 8874236
    Abstract: A pacemaker lead includes a body and an insulation layer. The body includes at least one carbon nanotube yarn. The at least one carbon nanotube yarn includes a plurality of carbon nanotubes. The carbon nanotubes are interconnected along an axis of the body by van der Waals force. The insulation layer covers an outer surface of the body.
    Type: Grant
    Filed: April 28, 2011
    Date of Patent: October 28, 2014
    Assignees: Tsinghua University, Hon Hai Precision Industry Co., Ltd.
    Inventors: Kai Liu, Li Fan, Ying-Hui Sun, Wen-Mei Zhao
  • Patent number: 8860143
    Abstract: A semiconductor structure is provided. The semiconductor structure comprises: a substrate; a gate dielectric layer formed on the substrate; a metal gate electrode layer formed on the gate dielectric layer; and at least one metal-containing adjusting layer for adjusting a work function of the semiconductor structure, in which an interfacial layer is formed between the substrate and the gate dielectric layer, and an energy of bond between a metal atom in the metal-containing adjusting layer and an oxygen atom is larger than that between an atom of materials forming the gate dielectric layer or the interfacial layer and an oxygen atom. Further, a method for forming the semiconductor structure is also provided.
    Type: Grant
    Filed: August 2, 2011
    Date of Patent: October 14, 2014
    Assignee: Tsinghua University
    Inventors: Mei Zhao, Renrong Liang, Jing Wang, Jun Xu
  • Publication number: 20140291727
    Abstract: A method for forming a semiconductor gate structure and a semiconductor gate structure are provided. The method includes: providing a substrate with a Ge layer as a surface thereof; forming a Sn layer on the Ge layer, in which an interface between the Ge layer and the Sn layer is a GeSn layer; removing the Sn layer to expose the GeSn layer; forming a GeSnOx passivation layer by performing an oxidation treatment for the GeSn layer, or forming a GeSnN or GeSnON passivation layer by performing a passivation treatment for the GeSn layer; and forming a gate stack on the GeSnOx, GeSnN or GeSnON passivation layer.
    Type: Application
    Filed: June 14, 2013
    Publication date: October 2, 2014
    Applicant: Tsinghua University
    Inventors: Mei Zhao, Renrong Liang, Jing Wang, Jun Xu
  • Patent number: 8828725
    Abstract: A culture medium is used for culturing neural cells. Each neural cell includes a neural cell body and at least one neurite branched from the neural cell body. The culture medium includes a substrate and a carbon nanotube structure located on the substrate. The carbon nanotube structure includes a number of carbon nanotube wires spaced apart from each other. A distance between adjacent carbon nanotube wires is greater than or equal to diameters of the neural cell bodies. The carbon nanotube wires are capable of guiding extending directions of the neurites.
    Type: Grant
    Filed: August 1, 2012
    Date of Patent: September 9, 2014
    Assignees: Tsinghua University, Hon Hai Precision Industry Co., Ltd.
    Inventors: Li Fan, Chen Feng, Wen-Mei Zhao
  • Patent number: 8825178
    Abstract: An electrode lead of a pacemaker includes a lead wire. The lead wire includes at least one sub-lead wire and an electrode head electrically connected with the lead wire. The sub-lead wire includes a core wire structure and a carbon nanotube composite structure wound around the core wire structure. The pacemaker includes a pulse generator and the electrode lead electrically connected to the pulse generator.
    Type: Grant
    Filed: June 20, 2012
    Date of Patent: September 2, 2014
    Assignees: Tsinghua University, Hon Hai Precision Industry Co., Ltd.
    Inventors: Chen Feng, Li Qian, Yu-Quan Wang, Liang Liu, Wen-Mei Zhao, Li Fan
  • Patent number: 8796024
    Abstract: A method for culturing neural cells using a culture medium is provided. Each neural cell includes a neural cell body and at least one neurite branched from the neural cell body. The culture medium includes a substrate and a carbon nanotube structure located on the substrate. A surface of the carbon nanotube structure is polarized to form a polar surface. The neural cells are cultured on the polar surface to grow neurites along the carbon nanotube wires. The carbon nanotube structure includes a number of carbon nanotube wires spaced apart from each other. A distance between adjacent carbon nanotube wires is greater than or equal to a diameter of the neural cell body.
    Type: Grant
    Filed: August 1, 2012
    Date of Patent: August 5, 2014
    Assignees: Tsinghua University, Hon Hai Precision Industry Co., Ltd.
    Inventors: Li Fan, Chen Feng, Wen-Mei Zhao
  • Patent number: 8785938
    Abstract: A method for forming a polycrystalline film, a polycrystalline film formed by the method and a thin film transistor fabricated from the polycrystalline film are provided. The method comprises the steps of: providing a substrate; forming a thermal conductor layer on the substrate; etching the thermal conductor layer until the substrate is exposed to form a thermal conductor pattern; forming a seed layer on the thermal conductor layer and the substrate; etching the seed layer to form seed crystals on both sidewalls of the thermal conductor; forming an amorphous layer on the substrate, the thermal conductor layer and the seed crystals; etching the amorphous layer; and recrystallizing the amorphous layer to form a polycrystalline layer.
    Type: Grant
    Filed: August 2, 2012
    Date of Patent: July 22, 2014
    Assignee: Tsinghua University
    Inventors: Lianfeng Zhao, Renrong Liang, Mei Zhao, Jing Wang, Jun Xu
  • Patent number: 8626315
    Abstract: A pacemaker includes a pulse generator, a conduction line, and a pacemaker electrode. The pacemaker electrode includes a body and an insulation layer. The body includes at least one carbon nanotube yarn. The carbon nanotube yarn includes a number of carbon nanotubes. The carbon nanotubes are interconnected along one axis of the body by van der Waals force. The insulation layer covers an outer surface of the body.
    Type: Grant
    Filed: April 28, 2011
    Date of Patent: January 7, 2014
    Assignees: Tsinghua University, Hon Hai Precision Industry Co., Ltd.
    Inventors: Kai Liu, Li Fan, Wen-Mei Zhao, Ying-Hui Sun
  • Publication number: 20130346106
    Abstract: Systems, methods, and computer program products for facilitating the navigation of patient clinical data based on a single timeline are disclosed. In an embodiment, such integrated view allows users to navigate through patient health data using a conceptual linkage based on common attributes. Users may also, through use of a Unified Data Navigator built on a web-based client, configure and customize such patient health data displays and save selected settings as personal views.
    Type: Application
    Filed: June 22, 2012
    Publication date: December 26, 2013
    Applicant: MICROSOFT CORPORATION
    Inventors: Zhuo Xiao, Yun Zheng, Mei Zhao, Oliver Chen
  • Patent number: 8583259
    Abstract: An electrode lead of a pacemaker includes a metal conductive core, a carbon nanotube film, and an insulator. The metal conductive core defines an extending direction. The carbon nanotube film at least partially surrounds the metal conductive core and is electrically insulated from the metal conductive core. The insulator is located between the metal conductive core and the carbon nanotube film. The carbon nanotube film includes a plurality of carbon nanotubes substantially extending along the extending direction of the metal conductive core. A bared part is defined at one end of the electrode lead. A pacemaker using the above mentioned electrode lead is also disclosed.
    Type: Grant
    Filed: June 20, 2012
    Date of Patent: November 12, 2013
    Assignees: Tsinghua University, Hon Hai Precision Industry Co., Ltd.
    Inventors: Liang Liu, Li Fan, Wen-Mei Zhao, Chen Feng, Yu-Quan Wang, Li Qian
  • Publication number: 20130277677
    Abstract: A method for forming a polycrystalline film, a polycrystalline film formed by the method and a thin film transistor fabricated from the polycrystalline film are provided. The method comprises the steps of: providing a substrate; forming a thermal conductor layer on the substrate; etching the thermal conductor layer until the substrate is exposed to form a thermal conductor pattern; forming a seed layer on the thermal conductor layer and the substrate; etching the seed layer to form seed crystals on both sidewalls of the thermal conductor; forming an amorphous layer on the substrate, the thermal conductor layer and the seed crystals; etching the amorphous layer; and recrystallizing the amorphous layer to form a polycrystalline layer.
    Type: Application
    Filed: August 2, 2012
    Publication date: October 24, 2013
    Applicant: TSINGHUA UNIVERSITY
    Inventors: Lianfeng Zhao, Renrong Liang, Mei Zhao, Jing Wang, Jun Xu
  • Publication number: 20130200444
    Abstract: A Schottky barrier field effect transistor with a carbon-containing insulation layer and a method for fabricating the same are provided. The Schottky barrier field effect transistor comprises: a substrate; a gate stack formed on the substrate; a metal source and a metal drain formed in the substrate on both sides of the gate stack respectively; and the carbon-containing insulation layer formed between the substrate and the metal source and between the substrate and the metal drain respectively, in which a material of the carbon-containing insulation layer is organic molecular chains containing an alkyl group.
    Type: Application
    Filed: March 22, 2012
    Publication date: August 8, 2013
    Inventors: Wei Wang, Jing Wang, Mei Zhao, Renrong Liang
  • Publication number: 20130158644
    Abstract: A pacemaker is provided. The pacemaker includes an electrode line having a lead and an electrode. The electrode includes a carbon nanotube composite structure having a matrix and at least one carbon nanotube structure located in the matrix. A first end of each carbon nanotube structure protrudes out of a first surface of the matrix for stimulating the human tissue, and a second end of each carbon nanotube structure protrudes out of a second surface of the matrix to electrically connect to the lead.
    Type: Application
    Filed: May 22, 2012
    Publication date: June 20, 2013
    Applicants: HON HAI PRECISION INDUSTRY CO., LTD., Tsinghua University
    Inventors: Li Qian, Yu-Quan Wang, Liang Liu, Li Fan, Wen-Mei Zhao, Chen Feng
  • Publication number: 20130158643
    Abstract: A pacemaker includes an electrode line having a lead and an electrode. The electrode includes a carbon nanotube composite structure having a matrix and a carbon nanotube structure located in the matrix. The matrix comprises a first surface and a second surface substantially perpendicular to the first surface. The carbon nanotube structure includes a first end electrically connect to the lead. The carbon nanotube structure is substantially parallel to the second surface of the matrix. A distance between the carbon nanotube structure and the second surface of the matrix is less than 10 micrometers.
    Type: Application
    Filed: May 22, 2012
    Publication date: June 20, 2013
    Applicants: HON HAI PRECISION INDUSTRY CO., LTD., Tsinghua University
    Inventors: Yu-Quan Wang, Li Fan, Wen-Mei Zhao, Li Qian, Chen Feng, Liang Liu
  • Patent number: 8463379
    Abstract: A lead wire and a pacemaker using the lead wire are disclosed. The lead wire, comprising: a lead body and a lead electrode at an end of the lead body, the lead electrode being electrically connected with the lead body, the lead electrode comprising a carbon nanotube structure, the carbon nanotube structure comprising at least one carbon nanotube film, the carbon nanotube structure having an electrode tip away from the lead body, and the electrode tip being in linear contact with an organ, wherein the electrode tip functions as a stimulating electrode, the at least one carbon nanotube film acts as a sensing electrode.
    Type: Grant
    Filed: December 29, 2011
    Date of Patent: June 11, 2013
    Assignees: Tsinghua University, Hon Hai Precision Industry Co., Ltd.
    Inventors: Li Fan, Wen-Mei Zhao, Chen Feng, Li Qian, Yu-Quan Wang, Liang Liu
  • Publication number: 20130110216
    Abstract: An electrode lead of a pacemaker includes a metal conductive core and a carbon nanotube film. The metal conductive core defines an extending direction. The carbon nanotube film wraps around the metal conductive core. The carbon nanotube film includes a plurality of carbon nanotubes extending substantially along the extending direction of the metal conductive core. A bared part is defined at one end of the electrode lead. A pacemaker using the above mentioned electrode lead is also disclosed.
    Type: Application
    Filed: June 20, 2012
    Publication date: May 2, 2013
    Applicants: HON HAI PRECISION INDUSTRY CO., LTD., TSINGHUA UNIVERSITY
    Inventors: YU-QUAN WANG, LI QIAN, LIANG LIU, CHEN FENG, LI FAN, WEN-MEI ZHAO