Patents by Inventor Aihua (Steven) Chen

Aihua (Steven) Chen 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).

  • Cyclical deposition of tungsten nitride for metal oxide gate electrode
    Patent number: 7115499
    Abstract: A method for depositing a tungsten nitride layer is provided. The method includes a cyclical process of alternately adsorbing a tungsten-containing compound and a nitrogen-containing compound on a substrate. The barrier layer has a reduced resistivity, lower concentration of fluorine, and can be deposited at any desired thickness, such as less than 100 angstroms, to minimize the amount of barrier layer material.
    Type: Grant
    Filed: December 1, 2004
    Date of Patent: October 3, 2006
    Assignee: Applied Materials, Inc.
    Inventors: Shulin Wang, Ulrich Kroemer, Lee Luo, Aihua Chen, Ming Li
  • Lightweight hybrid tubular/casting instrument panel beam
    Publication number: 20060119139
    Abstract: An instrument panel beam includes an elongated main member having a bent tubular configuration, and a plurality of structural supports connected to the member. The beam is formed of a lightweight material, such as a magnesium or aluminum alloy. The beam is preferably constructed utilizing a die-cast process, wherein at least a portion of the member is overmolded by each support so as to cooperatively form a soldered region therebetween.
    Type: Application
    Filed: February 18, 2005
    Publication date: June 8, 2006
    Inventors: Aihua Luo, Anil Sachdev
  • Cyclic oxyguanidine pyrazinones as protease inhibitors
    Patent number: 7030110
    Abstract: Cyclic oxyguanidine pyrazinone compounds are described, including compounds of the Formula I: wherein R3, R4, R5, W, and A are as set forth in the specification, as well as hydrates, solvates or pharmaceutically acceptable salts thereof. The compounds of the invention are potent inhibitors of proteases, especially trypsin-like serine proteases, such as chymotrypsin, trypsin, thrombin, plasmin and factor Xa. Certain of the compounds exhibit antithrombotic activity via direct, selective inhibition of thrombin. Compositions for inhibiting loss of blood platelets, inhibiting formation of blood platelet aggregates, inhibiting formation of fibrin, inhibiting thrombus formation, and inhibiting embolus formation are described.
    Type: Grant
    Filed: October 4, 2002
    Date of Patent: April 18, 2006
    Assignee: Ortho-McNeil Pharmaceuticals, Inc.
    Inventors: Aihua Wang, Bruce Edward Tomczuk, Tianbao Lu, Richard M. Soll, John Curtis Spurlino, Roger Francis Bone
  • 4-((Phenoxyalkyl)thio)-phenoxyacetic acids and analogs
    Publication number: 20060074246
    Abstract: The invention features 4-((phenoxyalkyl)thio)-phenoxyacetic acids and analogs, compositions containing them, and methods of using them as PPAR modulators to treat or inhibit the progression of, for example, dyslipidemia.
    Type: Application
    Filed: November 15, 2005
    Publication date: April 6, 2006
    Inventors: Gee-Hong Kuo, Lan Shen, Aihua Wang, Yan Zhang
  • 4-((phenoxyalkyl)thio)-phenoxyacetic acids and analogs
    Patent number: 7015329
    Abstract: The invention features 4-((phenoxyalkyl)thio)-phenoxyacetic acids and analogs, compositions containing them, and methods of using them as PPAR modulators to treat or inhibit the progression of, for example, dyslipidemia.
    Type: Grant
    Filed: October 28, 2004
    Date of Patent: March 21, 2006
    Assignee: Janssen Pharmaceutica N. V.
    Inventors: Gee-Hong Kuo, Lan Shen, Aihua Wang, Yan Zhang
  • 4-((phenoxyalkyl)thio)-phenoxyacetic acids and analogs
    Publication number: 20060058382
    Abstract: The invention features 4-((phenoxyalkyl)thio)-phenoxyacetic acids and analogs, compositions containing them, and methods of using them as PPAR modulators to treat or inhibit the progression of, for example, dyslipidemia.
    Type: Application
    Filed: September 14, 2005
    Publication date: March 16, 2006
    Inventors: Gee-Hong Kuo, Rui Zhang, Aihua Wang, Alan DeAngelis, Keith Demarest, Patricia Pelton
  • 4-((phenoxyalkyl)thio)-phenoxyacetic acids and analogs
    Publication number: 20060058393
    Abstract: The invention features 4-((phenoxyalkyl)thio)-phenoxyacetic acids and analogs, compositions containing them, and methods of using them as PPAR modulators to treat or inhibit the progression of, for example, dyslipidemia.
    Type: Application
    Filed: September 14, 2005
    Publication date: March 16, 2006
    Inventors: Alan DeAngelis, Keith Demarest, Gee-Hong Kuo, Patricia Pelton, Aihua Wang, Rui Zhang
  • Cyclic oxyguanidine pyrazinones as protease inhibitors
    Publication number: 20060058291
    Abstract: Cyclic oxyguanidine pyrazinone compounds are described, including compounds of the Formula I: wherein R3, R4, R5, W, and A are as set forth in the specification, as well as hydrates, solvates or pharmaceutically acceptable salts thereof. The compounds of the invention are potent inhibitors of proteases, especially trypsin-like serine proteases, such as chymotrypsin, trypsin, thrombin, plasmin and factor Xa. Certain of the compounds exhibit antithrombotic activity via direct, selective inhibition of thrombin. Compositions for inhibiting loss of blood platelets, inhibiting formation of blood platelet aggregates, inhibiting formation of fibrin, inhibiting thrombus formation, and inhibiting embolus formation are described.
    Type: Application
    Filed: October 19, 2005
    Publication date: March 16, 2006
    Applicant: Ortho-McNeil Pharmaceutical, Inc.
    Inventors: Aihua Wang, Bruce Tomczuk, Tianbao Lu, Richard Soll, John Spurlino, Roger Bone
  • Corn event TC1507 and methods for detection thereof
    Publication number: 20060037095
    Abstract: The invention provides DNA compositions that relate to transgenic insect resistant maize plants. Also provided are assays for detecting the presence of the maize TC1507 event based on the DNA sequence of the recombinant construct inserted into the maize genome and the DNA sequences flanking the insertion site. Kits and conditions useful in conducting the assays are provided.
    Type: Application
    Filed: April 30, 2004
    Publication date: February 16, 2006
    Inventors: Eric Barbour, James Bing, Guy Cardineau, Robert Cressman, Manju Gupta, Mary Hartnett Locke, David Hondred, Joseph Keaschall, Michael Koziel, Terry Meyer, Daniel Moellenbeck, Kenneth Narva, Wilas Nirunsuksiri, Steven Ritchie, Marjorie Rudert, Craig Sanders, Aihua Shao, Steven Stelman, David Stucker, Laura Tagliani, William Van Zante
  • Crush zone and method for introducing crush zone into vehicle structure
    Patent number: 6994350
    Abstract: The present invention involves a method to produce crush zones in aluminum structures using controlled application of retrogression heat treatment. Selected areas of a tubular rail are retrogression heat treated to locally lower the tensile yield strength. As a result, during a crash event, initial deformation is localized in the crush zone enabling the crush pattern to be designed directly into the structure.
    Type: Grant
    Filed: March 28, 2003
    Date of Patent: February 7, 2006
    Assignee: General Motors Corporation
    Inventors: Paul E. Krajewski, Alan (Aihua) A. Luo, Susan E. Hartfield-Wünsch, Patrick J. McNamara
  • Method of forming a controlled and uniform lightly phosphorous doped silicon film
    Publication number: 20060024926
    Abstract: Method of forming a lightly phosphorous doped silicon film. A substrate is provided. A process gas comprising a phosphorous source gas and a disilane gas is used to form a lightly phosphorous doped silicon film on the substrate. The diluted phosphorous source gas has a phosphorous concentration of 1%. The phosphorous source gas and the disilane gas have a flow ratio less than 1:100. The lightly phosphorous doped silicon film has a phosphorous doping concentration less than 1×1020 atoms/cm3.
    Type: Application
    Filed: September 16, 2005
    Publication date: February 2, 2006
    Inventors: Li Fu, Sheeba Panayil, Shulin Wang, Christopher Quentin, Lee Luo, Aihua Chen, Zianzhi Tao
  • Process to upgrade oil using metal oxides
    Publication number: 20060016723
    Abstract: Described herein are compositions and methods for using metal oxides to upgrade oil. Metal oxides may be used as catalysts to reduce the TAN of the oil by converting carboxylic acids such as naphthenic acids into non-corrosive products. In some cases, the conversion occurs by a decarboxylation of the carboxylic acid to produce CO2. A second process promoted by metal oxides is hydrocarbon cracking. Cracking decreases the viscosity and increases the API, and produces lower molecular-weight hydrocarbons that are useful for many fuels and lubricants. Reductions in TAN and the increases in API improve the quality of increase the value of oil.
    Type: Application
    Filed: July 7, 2005
    Publication date: January 26, 2006
    Applicant: California Institute of Technology
    Inventors: Yongchun Tang, Aihua Zhang
  • Method of forming a controlled and uniform lightly phosphorous doped silicon film
    Patent number: 6982214
    Abstract: Method of forming a lightly phosphorous doped silicon film. A substrate is provided. A process gas comprising a phosphorous source gas and a disilane gas is used to form a lightly phosphorous doped silicon film on the substrate. The diluted phosphorous source gas has a phosphorous concentration of 1%. The phosphorous source gas and the disilane gas have a flow ratio less than 1:100. The lightly phosphorous doped silicon film has a phosphorous doping concentration less than 1×1020 atoms/cm3.
    Type: Grant
    Filed: October 1, 2002
    Date of Patent: January 3, 2006
    Assignee: Applied Materials, Inc.
    Inventors: Li Fu, Sheeba J. Panayil, Shulin Wang, Christopher G. Quentin, Lee Luo, Aihua Chen, Xianzhi Tao
  • Moderate temperature bending of magnesium alloy tubes
    Publication number: 20050194074
    Abstract: A method for bending magnesium alloy tubes. The method includes heating the tube at moderate temperature in the range of about 100° C. to 200° C., and bending the tube to a bend angle or forming the tube to a desired shape.
    Type: Application
    Filed: March 4, 2004
    Publication date: September 8, 2005
    Inventors: Aihua Luo, Anil Sachdev
  • Magnesium wrought alloy having improved extrudability and formability
    Publication number: 20050194072
    Abstract: In one aspect, the invention provides a magnesium-based casting alloy having relatively high strength and castibility, as well as an improved ductility and extrudability for wrought alloy applications. The magnesium-based wrought alloy comprises aluminum (Al) of between about 2.5 to about 4.0 wt. %, manganese (Mn) of less than about 0.6 wt. %, zinc (Zn) of less than about 0.3 wt. %, other impurities of less than about 0.1 wt. %, and a balance of magnesium (Mg). The invention further provides methods of forming a wrought alloy component and automotive components formed therefrom.
    Type: Application
    Filed: March 4, 2004
    Publication date: September 8, 2005
    Inventors: Aihua Luo, Anil Sachdev
  • Cyclical deposition of tungsten nitride for metal oxide gate electrode
    Publication number: 20050176240
    Abstract: A method for depositing a tungsten nitride layer is provided. The method includes a cyclical process of alternately adsorbing a tungsten-containing compound and a nitrogen-containing compound on a substrate. The barrier layer has a reduced resistivity, lower concentration of fluorine, and can be deposited at any desired thickness, such as less than 100 angstroms, to minimize the amount of barrier layer material.
    Type: Application
    Filed: December 1, 2004
    Publication date: August 11, 2005
    Inventors: Shulin Wang, Ulrich Kroemer, Lee Luo, Aihua Chen, Ming Li
  • Substituted 6−membered n−heterocyclic compounds and their uses as neurological regulator
    Publication number: 20050130958
    Abstract: This invention relates to substituted 6-membered N-Herterocyclic neurotrophic compounds of formula (I) or pharmaceutically acceptable salts or hydrates thereof, wherein R1, R2, X, Y, and Z are as defined in the description; their preparation methods, compositions comprising the same, and their use as inhibitors of FK560 binding proteases activity for treating and preventing neurodegenerative diseases and other nerve disorders associated with nerve injuries or other related diseases.
    Type: Application
    Filed: December 5, 2002
    Publication date: June 16, 2005
    Inventors: Song Li, Aihua Nie, Beifen Shen, Lili Wang, Wuhong Pei, Junhai Xiao, Songcheng Yang, Liuhong Yun, Hongying Liu, Cuiling Shu, Hongxia Wang, Zihe Rao
  • 4-((phenoxyalkyl)thio)-phenoxyacetic acids and analogs
    Publication number: 20050124698
    Abstract: The invention features 4-((phenoxyalkyl)thio)-phenoxyacetic acids and analogs, compositions containing them, and methods of using them as PPAR delta modulators to treat or inhibit the progression of, for example, dyslipidemia.
    Type: Application
    Filed: September 16, 2004
    Publication date: June 9, 2005
    Inventors: Gee-Hong Kuo, Rui Zhang, Aihua Wang, Alan DeAngelis
  • 4-((phenoxyalkyl)thio)-phenoxyacetic acids and analogs
    Publication number: 20050107469
    Abstract: The invention features 4-((phenoxyalkyl)thio)-phenoxyacetic acids and analogs, compositions containing them, and methods of using them as PPAR delta modulators to treat or inhibit the progression of, for example, dyslipidemia.
    Type: Application
    Filed: September 16, 2004
    Publication date: May 19, 2005
    Inventors: Gee-Hong Kuo, Rui Zhang, Aihua Wang, Alan DeAngelis
  • 4-((Phenoxyalkyl)thio)-phenoxyacetic acids and analogs
    Publication number: 20050096362
    Abstract: The invention features 4-((phenoxyalkyl)thio)-phenoxyacetic acids and analogs, compositions containing them, and methods of using them as PPAR modulators to treat or inhibit the progression of, for example, dyslipidemia.
    Type: Application
    Filed: October 28, 2004
    Publication date: May 5, 2005
    Inventors: Gee-Hong Kuo, Lan Shen, Aihua Wang, Yan Zhang