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).

  • Patent number: 7940452
    Abstract: A method for acquiring spectrum shape of a gain flattening filter of a doped optical fiber amplifier comprises the steps of: measuring spectrum shapes at two gain point (H, L) of the doped optical fiber with invariable fiber length respectively; and acquiring various gain spectrums of the doped optical fiber with various fiber length and various population inversion level according to an expression: ErGain(?,x,L?)=[ErLGain(?)+[ErHGain(?)?ErLGain(?)]*x]*L?, Wherein Gain(?) refers to the spectral function of gain, x is ??inv/?inv which refers to change of population inversion level, and L? is set as proportion of doped fiber length. Gain spectrums of the doped optical fiber with various fiber length can be acquired by measuring spectrum shapes at two gain point (H, L) of the doped optical fiber in invariable fiber length and applying change rule of gain spectrum of the doped optical fiber in different population inversion level, which improves the flexibility for design of amplifier.
    Type: Grant
    Filed: August 21, 2008
    Date of Patent: May 10, 2011
    Assignee: O-Net Communications (Shenzhen) Limited
    Inventors: Zhigang Wang, Aihua Yu
  • Publication number: 20110105494
    Abstract: This invention relates to a novel arylindenopyrimidine, A, and its therapeutic and prophylactic uses. Disorders treated and/or prevented include Parkinson's Disease. wherein X, R2, R3, and R4 are as defined in the specification.
    Type: Application
    Filed: October 19, 2010
    Publication date: May 5, 2011
    Inventors: Paul F. JACKSON, Mark T. Powell, Brian Christopher Shook, Aihua Wang
  • Publication number: 20110105541
    Abstract: This invention relates to a novel arylindenopyrimidine, A, and its therapeutic and prophylactic uses. Disorders treated and/or prevented include Parkinson's Disease. wherein X, R2, R3, and R4 are as defined in the specification.
    Type: Application
    Filed: October 19, 2010
    Publication date: May 5, 2011
    Inventors: Paul F. Jackson, Mark T. Powell, Brian Christopher Shook, Aihua Wang
  • Publication number: 20110105492
    Abstract: This invention relates to a novel arylindenopyrimidine, A, and its therapeutic and prophylactic uses. Disorders treated and/or prevented include Parkinson's Disease wherein X, R2, R3, and R4 are as defined in the specification.
    Type: Application
    Filed: October 19, 2010
    Publication date: May 5, 2011
    Inventors: Paul F. Jackson, Mark T. Powell, Brian Christopher Shook, Aihua Wang
  • Publication number: 20110105493
    Abstract: This invention relates to a novel arylindenopyrimidine, A, and its therapeutic and prophylactic uses. Disorders treated and/or prevented include Parkinson's Disease. wherein X, R2, R3, and R4 are as defined in the specification.
    Type: Application
    Filed: October 19, 2010
    Publication date: May 5, 2011
    Inventors: Paul F. JACKSON, Mark T. Powell, Brian Christopher Shook, Aihua Wang
  • Publication number: 20110099662
    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: October 28, 2010
    Publication date: April 28, 2011
    Applicants: Pioneer Hi-Bred International, Inc., E.I. du Pont de Nemours and Company, Dow AgroSciences LLC
    Inventors: Eric Barbour, James Wayne Bing, Guy A. Cardineau, Robert F. Cressman, JR., Manju Gupta, Mary E. Hartnett Locke, David Hondred, Joseph W. Keaschall, Michael G. Koziel, Terry EuClaire Meyer, Daniel Moellenbeck, Kenneth Edwin Narva, Wilas Nirunsuksiri, Steven W. Ritchie, Marjorie L. Rudert, Craig D. Sanders, Aihua Shao, Steven Jeffrey Stelman, David S. Stucker, Laura Ann Tagliani, William M. Van Zante
  • Patent number: 7928238
    Abstract: The invention is directed to compounds of Formula (I) described herein useful as CETP inhibitors, compositions containing them, and methods of using them.
    Type: Grant
    Filed: May 10, 2007
    Date of Patent: April 19, 2011
    Assignee: Janssen Pharmaceutica NV
    Inventors: Thomas Rano, Gee-Hong Kuo, Ellen Sieber-McMaster, Keith T. Demarest, Patricia Pelton, Aihua Wang
  • Publication number: 20110075556
    Abstract: The present disclosure relates to systems and methods for dynamic load balancing in a wireless network, such as a wireless local area network (WLAN) and the like. Specifically, the present invention periodically provides dynamic load balancing of mobile devices associated with a plurality of wireless access devices. This may include determining an optimum load and instructing wireless access devices that are overloaded to disassociate some mobile devices based upon predefined criteria. This disassociation is performed in a manner to minimize disruption by disassociating mobile devices with low usage, with close proximity to underutilized wireless access devices, and mobile devices not currently operating critical applications, such as voice.
    Type: Application
    Filed: September 28, 2009
    Publication date: March 31, 2011
    Inventor: Aihua Edward Li
  • Publication number: 20110030855
    Abstract: A method of improving the corrosion resistance of magnesium alloy castings containing more than about 2 per cent by weight of aluminum is described. The method comprises: first selecting a casting process suitable for developing at least on the surface of the casting a microstructure comprising aluminum-depleted magnesium grains surrounded by an aluminum-rich layer and preferably incorporating at least some of an intermetallic compound based on the composition Mg17Al12; and second, heat treating at least the outer layer of the casting to promote additional intermetallic compound precipitation as required.
    Type: Application
    Filed: August 7, 2009
    Publication date: February 10, 2011
    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS, INC.
    Inventors: Mridula D. Bharadwaj, Suresh Sundarraj, Shashank Tiwari, Aihua A. Luo, Deepika Sachdeva
  • Patent number: 7875744
    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: August 28, 2009
    Date of Patent: January 25, 2011
    Assignee: Janssen Pharmaceutica NV
    Inventors: Gee-Hong Kuo, Rui Zhang, Aihua Wang, Alan DeAngelis, Keith Demarest, Patricia Pelton
  • Publication number: 20100331406
    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 1, 2010
    Publication date: December 30, 2010
    Inventors: Alan DEANGELIS, Keith T. Demarest, Gee-Hong Kuo, Patricia Pelton, Aihua Wang, Rui Zhang
  • Publication number: 20100331345
    Abstract: The present invention relates to compounds represented by formula (I), or isomers, prodrugs, pharmaceutically acceptable salts, solvates or hydrates thereof: in which each substituent of formula (I) is as defined in the specification. The present invention also relates to preparation methods of compounds represented by formula (I), a pharmaceutical composition comprising compounds represented by formula (I) and usage of compounds represented by formula (I) for treating chronic neurodegenerative diseases such as Alzheimer's disease and other diseases induced by aggregation or deposition of ?-amyloid peptide.
    Type: Application
    Filed: February 5, 2007
    Publication date: December 30, 2010
    Inventors: Song Li, Guochao Liao, Junhai Xiao, Aihua Nie, Lili Wang, Wu Zhong, Zhibing Zheng
  • Patent number: 7845388
    Abstract: Magnesium or magnesium alloy components having galvanic corrosion protection isolators secured in place by metallurgical bonding during casting of the magnesium or magnesium alloy component. The isolators are formed of materials that are characterized by an absolute potential difference that is between that of magnesium and a contacting metallic component.
    Type: Grant
    Filed: September 28, 2006
    Date of Patent: December 7, 2010
    Assignee: GM Global Technology Operations, Inc.
    Inventors: Aihua A. Luo, Mark W. Verbrugge, Anil K. Sachdev
  • Publication number: 20100296469
    Abstract: A multi-mode convergence method, a multi-mode combination method, and devices thereof are provided. The multi-mode convergence method includes the following steps. Data from multi-mode base band units (BBUs) is received and separated into downlink service data and operation maintenance data. A channel configuration is generated according to the operation maintenance data. The downlink service data of a corresponding mode is selected according to the channel configuration, and the downlink service data and the operation maintenance data are consolidated, and the consolidated data is sent to corresponding remote radio unit (RRUs).
    Type: Application
    Filed: May 21, 2010
    Publication date: November 25, 2010
    Applicant: HUAWEI TECHNOLOGIES CO., LTD.
    Inventors: Taoyuan Zhou, Jiangchun Gu, Aihua Hu, Yong Zhang
  • Patent number: 7812053
    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: September 14, 2005
    Date of Patent: October 12, 2010
    Assignee: Janssen Pharmaceuticals NV
    Inventors: Alan DeAngelis, Keith T. Demarest, Gee-Hong Kuo, Patricia Pelton, Aihua Wang, Rui Zhang
  • Publication number: 20100227857
    Abstract: The invention is directed to compounds of Formula (I) described herein useful as CETP inhibitors, compositions containing them, and methods of using them.
    Type: Application
    Filed: May 18, 2010
    Publication date: September 9, 2010
    Inventors: Gee-Hong Kuo, Thomas Rano, Aihua Wang, Catherine Prouty, Keith T. Demarest, Patricia Pelton
  • Patent number: 7749995
    Abstract: The invention is directed to compounds of Formula (I) described herein useful as CETP inhibitors, compositions containing them, and methods of using them.
    Type: Grant
    Filed: May 10, 2007
    Date of Patent: July 6, 2010
    Assignee: Janssen Pharmaceutica NV
    Inventors: Gee-Hong Kuo, Aihua Wang, Thomas Rano, Catherine Prouty, Keith T. Demarest, Patricia Pelton
  • Publication number: 20100167085
    Abstract: A method for electroplating a substrate having an aluminum alloy surface comprises: applying a zinc layer onto the aluminum alloy surface; electroplating a first copper layer onto the zinc layer from an alkaline copper electroplating solution; electroplating a second copper layer onto the first copper layer from an acid copper electroplating solution; electroplating a Cu—Sn alloy layer onto the second copper layer from a Cu—Sn electroplating solution; and electroplating a chromium layer onto the Cu—Sn alloy layer from a trivalent chromium solution. The alkaline copper electroplating solution is substantially free of cyanide ion.
    Type: Application
    Filed: November 23, 2009
    Publication date: July 1, 2010
    Applicant: BYD CO. LTD.
    Inventors: Jipeng Sun, Aihua Li, Zaichun Li, Bo Peng
  • Patent number: 7745329
    Abstract: In one embodiment, a method for forming a tungsten barrier material on a substrate is provided which includes depositing a tungsten layer on a substrate during a vapor deposition process and exposing the substrate sequentially to a tungsten precursor and a nitrogen precursor to form a tungsten nitride layer on the tungsten layer. Some examples provide that the tungsten layer may be deposited by sequentially exposing the substrate to the tungsten precursor and a reducing gas (e.g., diborane or silane) during an atomic layer deposition process. The tungsten layer may have a thickness of about 50 ? or less and tungsten nitride layer may have an electrical resistivity of about 380 ??-cm or less. Other examples provide that a tungsten bulk layer may be deposited on the tungsten nitride layer by a chemical vapor deposition process.
    Type: Grant
    Filed: August 20, 2008
    Date of Patent: June 29, 2010
    Assignee: Applied Materials, Inc.
    Inventors: Shulin Wang, Ulrich Kroemer, Lee Luo, Aihua Chen, Ming Li
  • Publication number: 20100143746
    Abstract: Methods of reducing corrosion between magnesium and another metal are disclosed herein. In one method, a corrosion protection material is cold sprayed at an interface formed between the magnesium and the other metal, the corrosion protection material including magnesium. In another method, a cladding layer is applied to heat affected areas of the magnesium and/or the other metal, at a welded joint, or combinations thereof.
    Type: Application
    Filed: December 10, 2008
    Publication date: June 10, 2010
    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS, INC.
    Inventors: Guangling Song, Aihua A. Luo, Xiaohong Q. Gayden