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).

  • METHODS OF EXTRUDING MAGNESIUM ALLOYS
    Publication number: 20080017286
    Abstract: Methods of extruding magnesium-based casting alloys are provided. The magnesium alloys have 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 3.5 wt. %, manganese (Mn) of less than about 0.6 wt. %, zinc (Zn) of less than about 0.22 wt. %, other impurities of less than about 0.1 wt. %, and a balance of magnesium (Mg). The disclosure provides various methods of forming extruded structural components, including automotive components, and methods of forming such wrought alloys.
    Type: Application
    Filed: October 1, 2007
    Publication date: January 24, 2008
    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS, INC.
    Inventors: Aihua Luo, Anil Sachdev
  • Corn Event TC1507 and Methods for Detection Thereof
    Publication number: 20080015346
    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: July 6, 2007
    Publication date: January 17, 2008
    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
  • Substituted 6-membered N-heterocyclic compounds and method for their use as neurological regulator
    Patent number: 7304057
    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: Grant
    Filed: December 5, 2002
    Date of Patent: December 4, 2007
    Assignee: Institute of Pharmacology and Toxicology Accademy of Military Medical Sciences P.L.A. China
    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
    Patent number: 7301050
    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: Grant
    Filed: September 16, 2004
    Date of Patent: November 27, 2007
    Assignee: Janssen Pharmaceutical N.V.
    Inventors: Gee-Hong Kuo, Rui Zhang, Aihua Wang, Alan R. DeAngelis
  • High strength/ductility magnesium-based alloys for structural applications
    Publication number: 20070269337
    Abstract: A tin-containing magnesium-aluminum-manganese (Mg—Al—Mn) based alloy that provides a desired combination of strength and ductility so as to be particularly suited for structural applications. The alloy includes magnesium, aluminum, and manganese in combination and about 0.5% to about 3.5% tin. The tin addition improves strength without substantial loss of ductility.
    Type: Application
    Filed: May 16, 2007
    Publication date: November 22, 2007
    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS, INC.
    Inventors: Aihua Luo, Anil Sachdev
  • 3,4-DIHYDRO-2H-BENZO[1,4]OXAZINE AND THIAZINE DERIVATIVES AS CETP INHIBITORS
    Publication number: 20070265252
    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 10, 2007
    Publication date: November 15, 2007
    Inventors: Gee-Hong Kuo, Aihua Wang, Thomas Rano, Catherine Prouty, Keith T. Demarest, Patricia Pelton
  • 1,2,3,4-TETRAHYDRO-QUINOLINE DERIVATIVES AS CETP INHIBITORS
    Publication number: 20070265304
    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 10, 2007
    Publication date: November 15, 2007
    Inventors: Thomas Rano, Gee-Hong Kuo, Ellen Sieber-McMaster, Keith T. Demarest, Patricia Pelton, Aihua Wang
  • Corn event TC1507 and methods for detection thereof
    Patent number: 7288643
    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: Grant
    Filed: April 30, 2004
    Date of Patent: October 30, 2007
    Assignees: 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
  • Continuous process for converting natural gas to liquid hydrocarbons
    Publication number: 20070238909
    Abstract: An improved continuous process for converting methane, natural gas, or other hydrocarbon feedstocks into one or more higher hydrocarbons or olefins by continuously cycling through the steps of alkane halogenation, product formation (carbon-carbon coupling), product separation, and regeneration of halogen is provided. Preferably, the halogen is continually recovered by reacting hydrobromic acid with air or oxygen. The invention provides an efficient route to aromatic compounds, aliphatic compounds, mixtures of aliphatic and aromatic compounds, olefins, gasoline grade materials, and other useful products.
    Type: Application
    Filed: February 5, 2007
    Publication date: October 11, 2007
    Inventors: Sagar Gadewar, Michael Wyrsta, Philip Grosso, Aihua Zhang, Eric McFarland, Zachary Komon, Jeffrey Sherman
  • Simplex and duplex continuous automatic document feeder
    Publication number: 20070212140
    Abstract: A simplex and duplex continuous automatic document feeder includes a sheet input tray in which a sheet is placed before the sheet is fed, a first sheet output tray in which the sheet, after being fed, is placed, an image processing region in which the sheet is processed, a sheet input passageway communicating the sheet input tray with the image processing region, a turning passageway having a front end and a rear end both communicating with the image processing region, a sheet output passageway communicating the image processing region with the first sheet output tray, and a sheet-feeding mechanism for transporting the sheet from the sheet input tray to the first sheet output tray across the image processing region.
    Type: Application
    Filed: February 14, 2007
    Publication date: September 13, 2007
    Inventors: Aihua Xu, Quan Hong
  • Magnesium grain-refining using titanium
    Publication number: 20070181226
    Abstract: The grain size of magnesium alloys is effectively refined and made smaller by the addition of a small amount of titanium. The effect of the reduction of grain size is often an improvement in the strength and processability of a cast magnesium alloy. Often less than about 0.1% by weight of titanium need be used. It may be preferred to incorporate the titanium with another alloying constituent (such as aluminum) for addition to a melt of a magnesium base alloy.
    Type: Application
    Filed: February 3, 2006
    Publication date: August 9, 2007
    Inventors: Xiaoqin Zeng, Yingxing Wang, Wenjiang Ding, Aihua Luo
  • Histone deacetylase inhibitors of novel benzamide derivatives with potent differentiation and anti-proliferation activity
    Patent number: 7244751
    Abstract: The present invention is related to the preparation and pharmaceutical use of novel benzamide derivatives as defined in the specification of formula (I) as histone deacetylase inhibitors (HDACI), their preparations and the methods of using these compounds or their pharmaceutically acceptable salt in the treatment of cell proliferative diseases, e.g.
    Type: Grant
    Filed: February 2, 2004
    Date of Patent: July 17, 2007
    Assignee: Shenzhen Chipscreen Biosciences Ltd.
    Inventors: Xian-Ping Lu, Zhibin Li, Aihua Xie, Leming Shi, Boyu Li, Zhiqiang Ning, Song Shan, Tuo Deng, Weiming Hu
  • Corrosion inhibitors in polyurea coatings
    Publication number: 20070158616
    Abstract: Durable elastomeric polyurea coatings can be applied to metal surfaces subjected to impacts and environmental corrosion. Corrosion resistance of the coatings, especially on magnesium alloy surfaces, is improved by incorporation of particulate inhibitor additives in the liquid polyurea precursor coating material. Examples of inhibitors include potassium dichromate, sodium dichromate, potassium permanganate, vanadium pentoxide, phosphorus anhydride, cerium oxide, lanthanum oxide, calcium oxide and sodium oxide.
    Type: Application
    Filed: January 12, 2006
    Publication date: July 12, 2007
    Inventors: Aihua Luo, Yar-Ming Wang
  • Lightweight hybrid tubular/casting instrument panel beam
    Patent number: 7216927
    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: Grant
    Filed: February 18, 2005
    Date of Patent: May 15, 2007
    Assignee: GM Global Technology Operations, Inc.
    Inventors: Aihua A. Luo, Anil K. Sachdev
  • Substituted triazine kinase inhibitors
    Patent number: 7205298
    Abstract: The present invention provides substituted 1,3,5-triazine compounds as kinase inhibitors and a method for treating or ameliorating a kinase mediated disorder.
    Type: Grant
    Filed: July 18, 2003
    Date of Patent: April 17, 2007
    Assignee: Janssen Pharmaceutica N.V.
    Inventors: Gee-Hong Kuo, Alan DeAngelis, Aihua Wang, Yan Zhang, Stuart L. Emanuel, Steve Middleton
  • Method and apparatus for processing semiconductor work pieces
    Publication number: 20070032097
    Abstract: A processing apparatus for semiconductor work pieces and related methodology is disclosed and which includes a processing chamber having an internal cavity, and which has a plurality of rotatable processing stations positioned therein and wherein the rotatable processing stations each process a semiconductor work piece.
    Type: Application
    Filed: May 24, 2006
    Publication date: February 8, 2007
    Inventors: AiHua Chen, Ryoji Todaka, Gerald Yin
  • Semiconductor processing system; a semiconductor processing chamber; and a method for loading, unloading and exchanging semiconductor work pieces from a semiconductor processing chamber
    Publication number: 20070031236
    Abstract: A semiconductor processing system and related methodology is disclosed and which includes a processing chamber having an internal cavity and a transfer port; a transfer chamber which is positioned adjacent to the processing chamber; and a transfer apparatus having at least two extendible arms which are positioned within the transfer chamber, and wherein each of the extendible arms carry a semiconductor work piece into and out of the processing chamber by way of the transfer port, and wherein the at least two extendible arms are selectively vertically moveable, and further are each selectively moveable in the direction of the transfer port.
    Type: Application
    Filed: May 24, 2006
    Publication date: February 8, 2007
    Inventor: AiHua Chen
  • Method for forming a high quality low temperature silicon nitride film
    Patent number: 7172792
    Abstract: A method of forming a silicon nitride film is described. According to the present invention, a silicon nitride film is deposited by thermally decomposing a silicon/nitrogen containing source gas or a silicon containing source gas and a nitrogen containing source gas at low deposition temperatures (e.g., less than 550° C.) to form a silicon nitride film. The thermally deposited silicon nitride film is then treated with hydrogen radicals to form a treated silicon nitride film.
    Type: Grant
    Filed: December 20, 2002
    Date of Patent: February 6, 2007
    Assignee: Applied Materials, Inc.
    Inventors: Shulin Wang, Errol Antonio C. Sanchez, Aihua Chen
  • TUNGSTEN NITRIDE ATOMIC LAYER DEPOSITION PROCESSES
    Publication number: 20070020924
    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: Application
    Filed: September 15, 2006
    Publication date: January 25, 2007
    Inventors: Shulin Wang, Ulrich Kroemer, Lee Luo, Aihua Chen, Ming Li
  • Moderate temperature bending of magnesium alloy tubes
    Patent number: 7140224
    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: Grant
    Filed: March 4, 2004
    Date of Patent: November 28, 2006
    Assignee: General Motors Corporation
    Inventors: Aihua A Luo, Anil K Sachdev