Patents by Inventor Jianhe Guo

Jianhe Guo 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: 10984964
    Abstract: Disclosed herein are stretchable strain sensors that include a graphite network embedded within an elastomeric material. The sensors are wearable and can be used to detect mechanical movements in three dimensions in a wide variety of contexts.
    Type: Grant
    Filed: September 7, 2017
    Date of Patent: April 20, 2021
    Assignee: BOARD OF REGENTS, THE UNIVERSITY OF TEXAS SYSTEM
    Inventors: Donglei Fan, Weigu Li, Jianhe Guo
  • Patent number: 10944339
    Abstract: The invention includes miniature dots, miniature disks or miniature cylinders and methods of making the same by dispersing a particle in or on a dissolvable, meltable or etchable layer on a substrate, a portion of the particle exposed above a surface of the dissolvable, meltable or etchable layer; depositing a mask on the particles and the dissolvable substrate; removing the particles from the layer; etching an array of nanoholes in the substrate; depositing one or more metallic layers into the nanoholes to form an array of dots, disks or cylinders; and dissolving the dissolvable layer with a solvent to expose the dots, disks or cylinders. The dots, disks or cylinders can be included with two sets of microelectrodes for ultrahigh speed rotation of miniature motors, and/or can be designed with a magnetic configuration into miniature motors for uniform rotation speeds and prescribed angular displacement.
    Type: Grant
    Filed: September 9, 2015
    Date of Patent: March 9, 2021
    Assignee: BOARD OF REGENTS, THE UNIVERSITY OF TEXAS SYSTEM
    Inventors: Donglei Fan, Kwanoh Kim, Jianhe Guo
  • Publication number: 20190237269
    Abstract: Disclosed herein are stretchable strain sensors that include a graphite network embedded within an elastomeric material. The sensors are wearable and can be used to detect mechanical movements in three dimensions in a wide variety of contexts.
    Type: Application
    Filed: September 7, 2017
    Publication date: August 1, 2019
    Inventors: Donglei FAN, Weigu LI, Jianhe GUO
  • Publication number: 20180334388
    Abstract: The present invention includes an apparatus and a method of making a three dimensional graphite structure with a controlled porosity comprising: plating a metal layer on at least one of a nickel, an iron or a cobalt foam substrate; annealing the metal and the nickel, iron or cobalt foam into a porous metal-nickel, iron or cobalt catalyst, wherein the catalyst has a smooth and a porous surface; etching the smooth surface of the annealed porous metal-nickel, iron or cobalt catalyst; growing a carbonaceous layer on the porous surface of the annealed porous metal-nickel, iron or cobalt catalyst; and completely etching the porous metal-nickel, iron or cobalt catalyst to obtain the graphite layer.
    Type: Application
    Filed: April 11, 2018
    Publication date: November 22, 2018
    Inventors: Donglei Fan, Jing Ning, Xiaobin Xu, Jianhe Guo
  • Patent number: 9957163
    Abstract: The present invention includes an apparatus and a method of making a three dimensional graphite structure with a controlled porosity comprising: plating a metal layer on at least one of a nickel, an iron or a cobalt foam substrate; annealing the metal and the nickel, iron or cobalt foam into a porous metal-nickel, iron or cobalt catalyst, wherein the catalyst has a smooth and a porous surface; etching the smooth surface of the annealed porous metal-nickel, iron or cobalt catalyst; growing a carbonaceous layer on the porous surface of the annealed porous metal-nickel, iron or cobalt catalyst; and completely etching the porous metal-nickel, iron or cobalt catalyst to obtain the graphite layer.
    Type: Grant
    Filed: June 12, 2015
    Date of Patent: May 1, 2018
    Assignee: Board of Regents, The University of Texas System
    Inventors: Donglei Fan, Jing Ning, Xiaobin Xu, Jianhe Guo
  • Publication number: 20170250625
    Abstract: The invention includes miniature dots, miniature disks or miniature cylinders and methods of making the same by dispersing a particle in or on a dissolvable, meltable or etchable layer on a substrate, a portion of the particle exposed above a surface of the dissolvable, meltable or etchable layer; depositing a mask on the particles and the dissolvable substrate; removing the particles from the layer; etching an array of nanoholes in the substrate; depositing one or more metallic layers into the nanoholes to form an array of dots, disks or cylinders; and dissolving the dissolvable layer with a solvent to expose the dots, disks or cylinders. The dots, disks or cylinders can be included with two sets of microelectrodes for ultrahigh speed rotation of miniature motors, and/or can be designed with a magnetic configuration into miniature motors for uniform rotation speeds and prescribed angular displacement.
    Type: Application
    Filed: September 9, 2015
    Publication date: August 31, 2017
    Inventors: Donglei Fan, Kwanoh Kim, Jianhe Guo
  • Publication number: 20150360952
    Abstract: The present invention includes an apparatus and a method of making a three dimensional graphite structure with a controlled porosity comprising: plating a metal layer on at least one of a nickel, an iron or a cobalt foam substrate; annealing the metal and the nickel, iron or cobalt foam into a porous metal-nickel, iron or cobalt catalyst, wherein the catalyst has a smooth and a porous surface; etching the smooth surface of the annealed porous metal-nickel, iron or cobalt catalyst; growing a carbonaceous layer on the porous surface of the annealed porous metal-nickel, iron or cobalt catalyst; and completely etching the porous metal-nickel, iron or cobalt catalyst to obtain the graphite layer.
    Type: Application
    Filed: June 12, 2015
    Publication date: December 17, 2015
    Inventors: Donglei Fan, Jing Ning, Xiaobin Xu, Jianhe Guo
  • Patent number: 7735033
    Abstract: The present invention presents methods for modeling the high frequency and noise characterization of MOSFETs. The models may be readily implemented as part of a SPICE or other simulation in a design flow. In particular, this invention is capable of providing a sub-circuit representation of a MOSFET that can accurately predicate a MOSFET's low frequency, high frequency, and noise characterizations. An interface is described through which a user may simultaneously optimize all of these characterizations. Further, methods are presented for building models that can predicate the variations in MOSFETs due to manufacturing processes and generate a corresponding corner model.
    Type: Grant
    Filed: December 18, 2007
    Date of Patent: June 8, 2010
    Assignee: Cadence Design Systems, Inc.
    Inventors: Xisheng Zhang, Hancheng Liang, Zhihong Liu, Jianhe Guo
  • Publication number: 20080109204
    Abstract: The present invention presents methods for modeling the high frequency and noise characterization of MOSFETs. The models may be readily implemented as part of a SPICE or other simulation in a design flow. In particular, this invention is capable of providing a sub-circuit representation of a MOSFET that can accurately predicate a MOSFET's low frequency, high frequency, and noise characterizations. An interface is described through which a user may simultaneously optimize all of these characterizations. Further, methods are presented for building models that can predicate the variations in MOSFETs due to manufacturing processes and generate a corresponding corner model.
    Type: Application
    Filed: December 18, 2007
    Publication date: May 8, 2008
    Inventors: Xisheng Zhang, Hancheng Liang, Zhihong Liu, Jianhe Guo
  • Patent number: 7313770
    Abstract: The present invention presents methods for modeling the high frequency and noise characterization of MOSFETs. The models may be readily implemented as part of a SPICE or other simulation in a design flow. In particular, this invention is capable of providing a sub-circuit representation of a MOSFET that can accurately predicate a MOSFET's low frequency, high frequency, and noise characterizations. An interface is described through which a user may simultaneously optimize all of these characterizations. Further, methods are presented for building models that can predicate the variations in MOSFETs due to manufacturing processes and generate a corresponding corner model.
    Type: Grant
    Filed: December 17, 2004
    Date of Patent: December 25, 2007
    Assignee: Cadence Design Systems, Inc.
    Inventors: Xisheng Zhang, Hancheng Liang, Zhihong Liu, Jianhe Guo
  • Publication number: 20050114111
    Abstract: The present invention presents methods for modeling the high frequency and noise characterization of MOSFETs. The models may be readily implemented as part of a SPICE or other simulation in a design flow. In particular, this invention is capable of providing a sub-circuit representation of a MOSFET that can accurately predicate a MOSFET's low frequency, high frequency, and noise characterizations. An interface is described through which a user may simultaneously optimize all of these characterizations. Further, methods are presented for building models that can predicate the variations in MOSFETs due to manufacturing processes and generate a corresponding corner model.
    Type: Application
    Filed: December 17, 2004
    Publication date: May 26, 2005
    Inventors: Xisheng Zhang, Hancheng Liang, Zhihong Liu, Jianhe Guo
  • Patent number: 6851097
    Abstract: The present invention presents methods for modeling the high frequency and noise characterization of MOSFETs. The models may be readily implemented as part of a SPICE or other simulation in a design flow. In particular, this invention is capable of providing a sub-circuit representation of a MOSFET that can accurately predicate a MOSFET's low frequency, high frequency, and noise characterizations. An interface is described through which a user may simultaneously optimize all of these characterizations. Further, methods are presented for building models that can predicate the variations in MOSFETs due to manufacturing processes and generate a corresponding corner model.
    Type: Grant
    Filed: July 9, 2003
    Date of Patent: February 1, 2005
    Assignee: Cadence Design Systems, Inc.
    Inventors: Xisheng Zhang, Hancheng Liang, Zhihong Liu, Jianhe Guo
  • Publication number: 20040031001
    Abstract: The present invention presents methods for modeling the high frequency and noise characterization of MOSFETs. The models may be readily implemented as part of a SPICE or other simulation in a design flow. In particular, this invention is capable of providing a sub-circuit representation of a MOSFET that can accurately predicate a MOSFET's low frequency, high frequency, and noise characterizations. An interface is described through which a user may simultaneously optimize all of these characterizations. Further, methods are presented for building models that can predicate the variations in MOSFETs due to manufacturing processes and generate a corresponding corner model.
    Type: Application
    Filed: July 9, 2003
    Publication date: February 12, 2004
    Inventors: Xisheng Zhang, Hancheng Liang, Zhihong Liu, Jianhe Guo
  • Patent number: 6618837
    Abstract: The present invention presents methods for modeling the high frequency and noise characterization of MOSFETs. The models may be readily implemented as part of a SPICE or other simulation in a design flow. In particular, this invention is capable of providing a sub-circuit representation of a MOSFET that can accurately predicate a MOSFET's low frequency, high frequency, and noise characterizations. An interface is described through which a user may simultaneously optimize all of these characterizations. Further, methods are presented for building models that can predicate the variations in MOSFETs due to manufacturing processes and generate a corresponding corner model.
    Type: Grant
    Filed: September 14, 2000
    Date of Patent: September 9, 2003
    Assignee: Cadence Design Systems, Inc.
    Inventors: Xisheng Zhang, Hancheng Liang, Zhihong Liu, Jianhe Guo