Patents by Inventor Guang Zhang

Guang Zhang 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).

  • Publication number: 20050008772
    Abstract: A process of producing a thin film electrolyte is provided wherein a volatile lithium-containing precursor and a volatile phosphate-containing precursor are mixed into a plasma generated from a plasma source. The mixture is then deposited upon a substrate. The process is conducted with the use of a system (11) having a plasma source (13) having a primary plenum (16) and a secondary plenum (23). The primary plenum is in fluid communication with a source of nitrogen gas (47) and a source of hydrogen gas (51). The secondary plenum is in fluid communication with a first bubbler (31) and a second bubbler (38).
    Type: Application
    Filed: July 11, 2003
    Publication date: January 13, 2005
    Inventors: Ji-Guang Zhang, Lamartine Meda, Eleston Maxie
  • Patent number: 6835493
    Abstract: A rechargeable, thin film lithium battery cell (10) is provided having a polyimide supporting substrate (11), a cathode current collector (13), a lithiated transition metal oxide or transition metal cathode (14), an electrolyte (15), an anode (16) and an anode current collector (17). The polyimide supporting substrate (11) is heated or dehydrated to remove water from therein. The cathode (14) is annealed at a relatively low temperature of approximately 300 degrees Celsius.
    Type: Grant
    Filed: July 26, 2002
    Date of Patent: December 28, 2004
    Assignee: Excellatron Solid State, LLC
    Inventors: Ji-Guang Zhang, Steve Buckingham, Lonnie G. Johnson
  • Publication number: 20040142888
    Abstract: The present invention provides methods for inducing apoptosis in a cell, the methods generally involving contacting the cell with an agent that reduces the level and/or activity of RabGGT. The present invention further provides methods for treating a disorder related to unwanted cell proliferation in an individual, the methods generally involving administering to the individual an agent that reduces the level and/or activity of RabGGT. The present invention further provides methods for reducing apoptosis in a cell, the methods generally involving increasing the level and/or activity of RabGGT in the cell. The present invention further provides methods for treating disorders associated with excessive apoptosis. The present invention further provides methods for identifying a cell that is amenable to treatment with the methods of the present invention. The present invention further provides methods for modulating a binding event between RabGGT and a RabGGT interacting protein.
    Type: Application
    Filed: August 7, 2003
    Publication date: July 22, 2004
    Inventors: Veeraswamy Manne, Mark Lynch, Petra B. Ross-MacDonald, Terry Stouch, Naomi Laing, Pamela Carroll, Kevin Fitzgerald, Louis J. Lombardo, Michael R. Costa, Mark E. Maxwell, Rachel M. Kindt, Mark R. Lackner, Tak Hung, Carol L. O'Brian, Hai Guang Zhang, Katherine S. Brown, Jae Moon Lee
  • Publication number: 20040018424
    Abstract: A rechargeable, thin film lithium battery cell (10) is provided having a polyimide supporting substrate (11), a cathode current collector (13), a lithiated transition metal oxide or transition metal cathode (14), an electrolyte (15), an anode (16) and an anode current collector (17). The polyimide supporting substrate (11) is heated or dehydrated to remove water from therein. The cathode (14) is annealed at a relatively low temperature of approximately 300 degrees Celsius.
    Type: Application
    Filed: July 26, 2002
    Publication date: January 29, 2004
    Inventors: Ji-Guang Zhang, Steve Buckingham, Lonnie G. Johnson
  • Publication number: 20030152829
    Abstract: A rechargeable, thin film lithium battery cell (10) is provided having a supporting substrate (11), a cathode current collector (12), a cathode (13), a solid state electrolyte (14), an anode (15) and an anode current collector (17).
    Type: Application
    Filed: February 12, 2002
    Publication date: August 14, 2003
    Inventors: Ji-Guang Zhang, Eleston Maxie
  • Patent number: 6517968
    Abstract: A rechargeable, thin film lithium battery cell (10) is provided having an aluminum cathode current collector (11) having a transition metal sandwiched between two crystallized cathodes (12). Each cathode has an electrolyte (13) deposited thereon which is overlaid with a lithium anode (14). An anode current collector (16) contacts the anode and substantially encases the cathode collector, cathode, electrolyte and anode. An insulator (18) occupies the spaces between the components and the anode current collector.
    Type: Grant
    Filed: June 11, 2001
    Date of Patent: February 11, 2003
    Assignee: Excellatron Solid State, LLC
    Inventors: Lonnie G. Johnson, Ji-Guang Zhang
  • Publication number: 20030022065
    Abstract: Thin-film vanadium oxide layer that is suitable for use as a cathode in a lithium ion battery or other electronic applications, such as ion insertion layers in electrochromic devices as well as other uses, is deposited by a plasma-enhanced chemical vapor deposition at room temperature at rates as high as 11 Å/sec. from a vanadium-containing precursor reacted with oxygen and hydrogen. The vanadium oxide-based cathode produced by a lower temperature process and at a high deposition rate, exhibits a high discharge capacity, a high energy density, and a negligible capacity fade fiom its second cycle to at least 2,900 cycles, thus providing enhanced cyclic stability and an improved component for rechargeable lithium-ion batteries and other electronic devices.
    Type: Application
    Filed: October 4, 2002
    Publication date: January 30, 2003
    Inventors: Ji-Guang Zhang, C. Edwin Tracy, David K. Benson, John A. Turner, Ping Liu
  • Publication number: 20020192546
    Abstract: Systems and methods for providing electrolytes having a multi-salt mixture used in electrochemical systems such as lithium ion batteries. The battery system generally includes a cathode, anode and electrolyte cells. The cells prepared with the multi-salt electrolyte, for instance, a mixed lithium/sodium mixed salt electrolyte, exhibit nearly the same capacity as those using pure lithium salt electrolyte. These cells exhibit improved cyclability, smaller internal resistance and better rate capability than those using pure lithium electrolyte. The multi-salt electrolyte is electrochemically stable within a voltage range of about 4.8 to 2.5 V. The mixed Li/Na salt electrolytes provide a cost alternative to a pure lithium salt and enhance the electrochemical properties of lithium ion batteries.
    Type: Application
    Filed: June 7, 2001
    Publication date: December 19, 2002
    Inventors: Zhenhua Mao, Ji-Guang Zhang, Aishui Yu, Richard C. Breitkopf
  • Publication number: 20020187399
    Abstract: A rechargeable, thin film lithium battery cell (10) is provided having an aluminum cathode current collector (11) having a transition metal sandwiched between two crystallized cathodes (12). Each cathode has an electrolyte (13) deposited thereon which is overlaid with a lithium anode (14). An anode current collector (16) contacts the anode and substantially encases the cathode collector, cathode, electrolyte and anode. An insulator (18) occupies the spaces between the components and the anode current collector.
    Type: Application
    Filed: June 11, 2001
    Publication date: December 12, 2002
    Inventors: Lonnie G. Johnson, Ji-Guang Zhang
  • Publication number: 20020071989
    Abstract: A thin film battery having a protective package that provides a heat-resistant, hermetic seal for the thin film battery. A thin film battery includes thin film layers of components such as a cathode current collector, a cathode, an electrolyte, an anode, and an anode current collector built up on a substrate. Layers of dielectric material are positioned over the thin film battery. Suitable dielectric materials include aluminum oxide, silicon dioxide, silicon nitride, silicon carbide, tantalum oxide, diamond, and diamond-like-carbon. The dielectric materials are annealed. A layer of epoxy is positioned completely over all layers of the thin film battery and cured under ultraviolet light. Finally, the epoxy is annealed. The resultant thin film battery has a package that provides protection from the atmosphere, high temperatures, undesirable gases and can withstand processes utilized in the semiconductor and other industries to produce printed circuit boards with surface mounted thin film batteries.
    Type: Application
    Filed: December 8, 2000
    Publication date: June 13, 2002
    Inventors: Surrenda K. Verma, Eleston Maxie, Richard C. Breitkopf, Ji-Guang Zhang
  • Patent number: 6276355
    Abstract: The slitting assembly includes a grinding wheel with a wide flat grinding face for first cutting a multilayer sheet of soft and compressible, electronic device material, such as lithium-ion polymer material for a uni-cell battery, to a first depth and includes a cutting wheel with a blade-like edge for completing the slit by cutting through uncut layers of the multilayer sheet. The grinding face has a width of at least the thickness of the multilayer sheet, and in practice, the depth of the cut is preferably one half the sheet thickness, which in a uni-cell battery sheet is midway through a separator layer. The grinding wheel is positioned to apply cutting forces to the multilayer sheet in a direction that is substantially parallel to the feed direction to control the application of compressive forces that may compress the soft sheet material and if uncontrolled, may create short circuits between electrically conductive layers.
    Type: Grant
    Filed: May 3, 1999
    Date of Patent: August 21, 2001
    Assignee: Macro Energy-Tech, Inc.
    Inventors: Ji-Guang Zhang, Khoon Cheng Lim
  • Patent number: 6156395
    Abstract: A method is disclosed of forming a vanadium oxide film on a substrate utilizing plasma enhanced chemical vapor deposition. The method includes positioning a substrate within a plasma reaction chamber and then forming a precursor gas comprised of a vanadium-containing chloride gas in an inert carrier gas. This precursor gas is then mixed with selected amounts of hydrogen and oxygen and directed into the reaction chamber. The amounts of precursor gas, oxygen and hydrogen are selected to optimize the final properties of the vanadium oxide film An rf plasma is generated within the reaction chamber to chemically react the precursor gas with the hydrogen and the oxygen to cause deposition of a vanadium oxide film on the substrate while the chamber deposition pressure is maintained at about one torr or less. Finally, the byproduct gases are removed from the plasma reaction chamber.
    Type: Grant
    Filed: June 3, 1999
    Date of Patent: December 5, 2000
    Assignee: Midwest Research Institute
    Inventors: Ji-Guang Zhang, C. Edwin Tracy, David K. Benson, John A. Turner, Ping Liu
  • Patent number: 5834137
    Abstract: The present invention relates to the composition of a solid lithium-ion electrolyte based on the Li.sub.2 O--CeO.sub.2 --SiO.sub.2 system having good transparent characteristics and high ion conductivity suitable for uses in lithium batteries, electrochromic devices and other electrochemical applications.
    Type: Grant
    Filed: October 29, 1997
    Date of Patent: November 10, 1998
    Assignee: Midwest Research Institute
    Inventors: Ji-Guang Zhang, David K. Benson, C. Edwin Tracy
  • Patent number: 5716736
    Abstract: The present invention relates to the composition of a solid lithium-ion electrolyte based on the Li.sub.2 O--CeO.sub.2 --SiO.sub.2 system having good transparent characteristics and high ion conductivity suitable for uses in lithium batteries, electrochromic devices and other electrochemical applications.
    Type: Grant
    Filed: October 6, 1995
    Date of Patent: February 10, 1998
    Assignee: Midwest Research Institute
    Inventors: Ji-Guang Zhang, David K. Benson, C. Edwin Tracy