Patents by Inventor Ming C. Wang

Ming C. Wang 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: 9437344
    Abstract: This invention provides a graphite or graphite-carbon particulate for use as a lithium secondary battery anode material having a high-rate capability. The particulate is formed of a core carbon or graphite particle and a plurality of satellite carbon or graphite particles that are each separately bonded to the core particle wherein the core particle is spherical in shape, slightly elongate in shape with a major axis-to-minor axis ratio less than 2, or fibril in shape, and wherein the satellite particles are disc-, platelet-, or flake-like particles each containing a graphite crystallite with a crystallographic c-axis dimension Lc and a lateral dimension. Preferably, Lc is less than 100 nm and the flake/platelet lateral dimension is less than 1 ?m. The core particle may be selected from natural graphite, artificial graphite, spherical graphite, graphitic coke, meso-carbon micro-bead, soft carbon, hard carbon, graphitic fibril, carbon nano-fiber, carbon fiber, or graphite fiber.
    Type: Grant
    Filed: July 22, 2010
    Date of Patent: September 6, 2016
    Assignee: Nanotek Instruments, Inc.
    Inventors: Aruna Zhamu, Jinjun Shi, Guorong Chen, Qing Fang, Bor Z. Jang, Ming C. Wang
  • Patent number: 8691441
    Abstract: A nano graphene-enhanced particulate for use as a lithium battery cathode active material, wherein the particulate is formed of a single or a plurality of graphene sheets and a plurality of fine cathode active material particles with a size smaller than 10 ?m (preferably sub-micron or nano-scaled), and the graphene sheets and the particles are mutually bonded or agglomerated into an individual discrete particulate with at least a graphene sheet embracing the cathode active material particles, and wherein the particulate has an electrical conductivity no less than 10?4 S/cm and the graphene is in an amount of from 0.01% to 30% by weight based on the total weight of graphene and the cathode active material combined.
    Type: Grant
    Filed: September 7, 2010
    Date of Patent: April 8, 2014
    Assignee: Nanotek Instruments, Inc.
    Inventors: Aruna Zhamu, Jinjun Shi, Guorong Chen, Ming C. Wang, Bor Z. Jang
  • Publication number: 20120058397
    Abstract: A nano graphene-enhanced particulate for use as a lithium battery cathode active material, wherein the particulate is formed of a single or a plurality of graphene sheets and a plurality of fine cathode active material particles with a size smaller than 10 ?m (preferably sub-micron or nano-scaled), and the graphene sheets and the particles are mutually bonded or agglomerated into an individual discrete particulate with at least a graphene sheet embracing the cathode active material particles, and wherein the particulate has an electrical conductivity no less than 10?4 S/cm and the graphene is in an amount of from 0.01% to 30% by weight based on the total weight of graphene and the cathode active material combined.
    Type: Application
    Filed: September 7, 2010
    Publication date: March 8, 2012
    Inventors: Aruna Zhamu, Jinjun Shi, Guorong Chen, Ming C. Wang, Bor Z. Jang
  • Publication number: 20120021294
    Abstract: This invention provides a graphite or graphite-carbon particulate for use as a lithium secondary battery anode material having a high-rate capability. The particulate is formed of a core carbon or graphite particle and a plurality of satellite carbon or graphite particles that are each separately bonded to the core particle wherein the core particle is spherical in shape, slightly elongate in shape with a major axis-to-minor axis ratio less than 2, or fibril in shape, and wherein the satellite particles are disc-, platelet-, or flake-like particles each containing a graphite crystallite with a crystallographic c-axis dimension Lc and a lateral dimension. Preferably, Lc is less than 100 nm and the flake/platelet lateral dimension is less than 1 ?m. The core particle may be selected from natural graphite, artificial graphite, spherical graphite, graphitic coke, meso-carbon micro-bead, soft carbon, hard carbon, graphitic fibril, carbon nano-fiber, carbon fiber, or graphite fiber.
    Type: Application
    Filed: July 22, 2010
    Publication date: January 26, 2012
    Inventors: Aruna Zhamu, Jinjun Shi, Guorong Chen, Qing Fang, Bor Z. Jang, Ming C. Wang
  • Patent number: 4446122
    Abstract: A prostate antigen distinct from prostatic acid phosphatase has been detected in normal, benign hypertrophic and malignant prostatic tissues, but not in other human tissues. The prostate antigen was purified to homogeneity from prostatic tissues by ammonium sulfate precipitation, DEAE-BioGel A anion exchange chromatography, molecular sievings on Sephadex G-100 and Sephadex G-75, and preparative polyacrylamide gel electrophoresis. The purified prostate antigen shows a single protein band on analytical polyacrylamide gel electrophoresis and isoelectric focusing. The molecular weight of purified antigen was estimated by Sephadex G-75 gel filtration to be 33,000 and by sodium dodecyl sulfate polyacrylamide gel electrophoresis to be 34,000 with no subunit. The prostate antigen had an isoelectric point of 6.9.
    Type: Grant
    Filed: August 28, 1981
    Date of Patent: May 1, 1984
    Assignee: Research Corporation
    Inventors: Tsann M. Chu, Ming C. Wang, Lawrence Papsidero
  • Patent number: RE33405
    Abstract: A prostate antigen distinct from prostatic acid phosphatase has been detected in normal, benign hypertrophic and malignant prostatic tissues, but not in other human tissues. The prostate antigen was purified to homogeneity from prostatic tissues by ammonium sulfate precipitation, DEAE-BioGel A anion exchange chromatography, molecular sievings on Sephadex G-100 and Sephadex G-75,This invention was supported in part by Grants No. CA-15126 and CA-15437 from the National Cancer Institute, U.S. Public Health Service.
    Type: Grant
    Filed: October 4, 1988
    Date of Patent: October 23, 1990
    Assignee: Research Corporation Technologies, Inc.
    Inventors: Tsann M. Chu, Ming C. Wang, Lawrence Papsidero