Patents by Inventor Tianhong Zhang

Tianhong 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).

  • Patent number: 6117293
    Abstract: The invention relates to a method for producing hydrophilic monomers which are particularly useful for electrophoresis and to electrophoresis compositions and coating compositions. The method uses the steps of reacting a (meth)acryloyl with an aminoalcohol in the presence of a base in a polar solvent, optionally filtering an aqueous solution of the reaction product, deionizing an aqueous solution of the reaction product, and removing the solvent.
    Type: Grant
    Filed: July 31, 1998
    Date of Patent: September 12, 2000
    Assignee: BioWhittaker Molecular Applications, Inc.
    Inventors: Tianhong Zhang, Noriko Kusukawa
  • Patent number: 6064075
    Abstract: Semiconductor devices may be made by forming a silicided layer on a silicon material such as that used to form the extractor of a field emission display. The silicided layer may be self-aligned with the emitter of a field emission display. If the silicided layer is treated at a temperature above 1000.degree. C. by exposure to a nitrogen source, the silicide is resistant to subsequent chemical attack such as that involved in a buffered oxide etching process.
    Type: Grant
    Filed: November 19, 1998
    Date of Patent: May 16, 2000
    Assignee: Micron Technology, Inc.
    Inventors: David A. Cathey, Jr., John K. Lee, Tianhong Zhang, Behnam Moradi
  • Patent number: 6024620
    Abstract: Semiconductor devices may be made by forming a silicided layer on a silicon material such as that used to form the extractor of a field emission display. The silicided layer may be self-aligned with the emitter of a field emission display. If the silicided layer is treated at a temperature above 1000.degree. C. by exposure to a nitrogen source, the silicide is resistant to subsequent chemical attack such as that involved in a buffered oxide etching process.
    Type: Grant
    Filed: November 19, 1998
    Date of Patent: February 15, 2000
    Assignee: Micron Technology, Inc.
    Inventors: David A. Cathey, Jr., John K. Lee, Tianhong Zhang, Behnam Moradi
  • Patent number: 5956611
    Abstract: Semiconductor devices may be made by forming a silicided layer on a silicon material such as that used to form the extractor of a field emission display. The silicided layer may be self-aligned with the emitter of a field emission display. If the silicided layer is treated at a temperature above 1000.degree. C. by exposure to a nitrogen source, the silicide is resistant to subsequent chemical attack such as that involved in a buffered oxide etching process.
    Type: Grant
    Filed: September 3, 1997
    Date of Patent: September 21, 1999
    Assignee: Micron Technologies, Inc.
    Inventors: David A. Cathey, Jr., John K. Lee, Tianhong Zhang, Behnam Moradi
  • Patent number: 5952771
    Abstract: A micropoint assembly is disclosed that includes a micropoint and a switch coupled to the micropoint. The switch is operable to activate and deactivate the micropoint and includes a nitride oxidation layer. The switch may be a MOSFET with a gate oxide that contains the nitride oxidation layer. In such configuration, the nitride oxidation layer contains the greatest concentration of SiN within the gate oxide. A method for constructing the micropoint assembly and field emission displays incorporating the micropoint assembly is also disclosed. Such method includes simultaneous annealing of the nitride oxidation layer during conventional FED fabrication steps.
    Type: Grant
    Filed: January 7, 1997
    Date of Patent: September 14, 1999
    Assignee: Micron Technology, Inc.
    Inventor: Tianhong Zhang
  • Patent number: 5692937
    Abstract: Cold-seal adhesives are disclosed that contain no natural rubber and are able of forming dry content on stretchable fabric strips which adhere to one another with acceptable strength at room temperature by pressure contact to form cohesive surgical bandages, but also allow such strips to be reeled into rolls and stored for extended periods of time without blocking. Such cold-seal adhesives are aqueous dispersions having a Zahn Cup #2 viscosity between 16-40 seconds containing 30 to 50 percent solids content of a polyurethane ionomer reaction product of 50-80% polyester polyol, 15-25% aliphatic diisocyanate and 3-6% dimethylol propionic acid neutralized with a base selected from tertiary amines and alkali metal hydroxides and the reaction product possesses a T.sub.g of between about -20.degree. to 5.degree. C.
    Type: Grant
    Filed: January 8, 1997
    Date of Patent: December 2, 1997
    Assignee: Century International Adhesives and Coatings Corporation, Inc.
    Inventor: Tianhong Zhang
  • Patent number: 5616400
    Abstract: Cold-seal adhesives are disclosed that contain no natural rubber and are capable of forming dry coatings on flexible films which adhere to one another with commercially acceptable packaging strength at room temperature by pressure contact, but also allow such layered substrates to be reeled into rolls and stored for extended periods of time without blocking. The flexible films are usable in forming packages, particularly for comestibles and pharmaceuticals, without need for heat sealing. Such cold-seal adhesives are aqueous dispersions having a Zahn Cup #2 viscosity between 16-40 seconds containing 30 to 50 percent solids content of a polyurethane ionomer reaction product of 50-80% polyester polyol, 15-25% aliphatic diisocyanate and 3-6% dimethylol propionic acid neutralized with a base selected from tertiary amines and alkali metal hydroxides and the reaction product possesses a T.sub.g of between about -20.degree. to 5.degree. C.
    Type: Grant
    Filed: November 20, 1995
    Date of Patent: April 1, 1997
    Assignee: Century International Adhesives & Coating Corporation
    Inventor: Tianhong Zhang