Patents by Inventor Wei Wei An

Wei Wei An 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: 7303900
    Abstract: Genes encoding phenylalanine ammonia-lyase (PAL), tyrosine ammonia lyase (TAL) and phenylalanine hydroxylase (PAH) have been introduced into a host organism for the production of Para-hydroxycinnamic acid (PHCA). The introduction of these genes results in the redirection of carbon flow in the host, optimizing the flow of carbon from glucose to PHCA. The intermediates, tyrosine and cinnamic acid are also produced.
    Type: Grant
    Filed: July 14, 2006
    Date of Patent: December 4, 2007
    Assignee: E.I. du Pont de Nemours and Company
    Inventors: Wei Wei Qi, Fateme Sima Sariaslani, Xiao-Song Tang
  • Patent number: 7302437
    Abstract: Generating data, such as metadata, relating to video media, such as a movie, and formatted according to a global video format. When metadata that is associated with video media and is formatted according to a formatting scheme associated with a particular content provider is received, the formatting scheme of the received metadata is validated if the formatting scheme of the received metadata corresponds to the global video format. Such video media may include streaming video, Video-On-Demand (VOD) movies, Pay-per-view movies, downloadable movies, and video files adapted for rendering by a media player program executed on a computer.
    Type: Grant
    Filed: December 23, 2004
    Date of Patent: November 27, 2007
    Assignee: Microsoft Corporation
    Inventors: Wei Wei A. Cho, Saar Picker, Stephen R. Husak
  • Publication number: 20070259127
    Abstract: A method for densifying sol-gel films to form microlens structures includes preparing a sol-gel precursor, having at least one solvent therein. The sol-gel precursor is spin coated onto a wafer to form a sol-gel film thereon. The wafer and sol-gel film are hot plate baked at a temperature less than 200° C. to remove at least some of the solvent. The baked, wafer and spin-coated sol-gel film are treated with an oxygen plasma treatment to remove any remaining solvent and to densify the sol-gel film. The spin coating, hot plate baking and treating steps may be repeated as required. A microlens is formed from the densified sol-gel film.
    Type: Application
    Filed: May 2, 2006
    Publication date: November 8, 2007
    Inventors: Yoshi Ono, Bruce Ulrich, Wei-Wei Zhuang, Douglas Tweet
  • Publication number: 20070238203
    Abstract: A method of monitoring synthesis of PCMO precursor solutions includes preparing a PCMO precursor solution and withdrawing samples of the precursor solution at intervals during a reaction phase of the PCMO precursor solution synthesis. The samples of the PCMO precursor solution are analyzed by UV spectroscopy to determine UV transmissivity of the samples of the PCMO precursor solution and the samples used to form PCMO thin films. Electrical characteristics of the PCMO thin films formed from the samples are determined to identify PCMO thin films having optimal electrical characteristics. The UV spectral characteristics of the PCMO precursor solutions are correlated with the PCMO thin films having optimal electrical characteristics. The UV spectral characteristics are used to monitor synthesis of future batches of the PCMO precursor solutions, which will result in PCMO thin films having optimal electrical characteristics.
    Type: Application
    Filed: April 11, 2006
    Publication date: October 11, 2007
    Inventors: Wei-Wei Zhuang, David Evans, Tingkai Li, Sheng Hsu
  • Publication number: 20070238239
    Abstract: A method is provided for forming a rare earth element-doped silicon oxide (SiO2) precursor with nanocrystalline (nc) Si particles. In one aspect the method comprises: mixing Si particles into a first organic solvent, forming a first solution with a first boiling point; filtering the first solution to remove large Si particles; mixing a second organic solvent having a second boiling point, higher than the first boiling point, to the filtered first solution; and, fractionally distilling, forming a second solution of nc Si particles. The Si particles are formed by immersing a Si wafer into a third solution including hydrofluoric (HF) acid and alcohol, applying an electric bias, and forming a porous Si layer overlying the Si wafer. Then, the Si particles are mixed into the organic solvent by depositing the Si wafer into the first organic solvent, and ultrasonically removing the porous Si layer from the Si wafer.
    Type: Application
    Filed: September 12, 2005
    Publication date: October 11, 2007
    Inventors: Wei-Wei Zhuang, Yoshi Ono, Sheng Teng-Hsu, Tingkai Li
  • Publication number: 20070236126
    Abstract: A field emission electron source (10) includes a conductive base (12), a carbon nanotube (14), and a modifying layer (16). The conductive base includes a top (122). One end (142) of the carbon nanotube is electrically connected with the top of the conductive base. The other end (144) of the carbon nanotube extends outwardly away from the top of the conductive base. The modifying layer (16) is uniformly distributed and coated onto at least the surface of the other end of the carbon nanotube. The work function of the modifying layer is lower than that of the carbon nanotube.
    Type: Application
    Filed: September 1, 2006
    Publication date: October 11, 2007
    Applicants: Tsinghua University, HON HAI Precision Industry CO., LTD.
    Inventors: Wei Wei, Kai-Li Jiang, Shou-Shan Fan
  • Publication number: 20070232824
    Abstract: The present invention relates to a solid base catalyst including 10.0%-30.0% by weight of calcium oxide and 70.0%-90.0% by weight of zirconium oxide, in which the calcium source is CaCl2 or Ca(NO3)2, and the Zirconium source is ZrOCl2 or ZrO(NO3)2. The invention also provides a process for the preparation of the catalyst and a use of the catalyst in synthesizing dimethyl carbonate via heterogeneous catalysis. The catalyst shows good catalytic stability and catalytic activity, and can be separated from products easily and is reusable.
    Type: Application
    Filed: January 18, 2007
    Publication date: October 4, 2007
    Inventors: Yuhan Sun, Wei Wei, Desheng Zhang, Dachuan Shi, Liming Liu, Hui Wang, Huanren Zhang, Yanhua Cheng, Ning Zhao, Mouhua Wang, Xiuzhi Wang
  • Publication number: 20070221975
    Abstract: A multi-layer PrxCa1-xMnO3 (PCMO) thin film capacitor and associated deposition method are provided for forming a bipolar switching thin film. The method comprises: forming a bottom electrode; depositing a nanocrystalline PCMO layer; depositing a polycrystalline PCMO layer; forming a multi-layer PCMO film with bipolar switching properties; and forming top electrode overlying the PCMO film. If the polycrystalline layers are deposited overlying the nanocrystalline layers, a high resistance can be written with narrow pulse width, negative voltage pulses. The PCMO film can be reset to a low resistance using a narrow pulse width, positive amplitude pulse. Likewise, if the nanocrystalline layers are deposited overlying the polycrystalline layers, a high resistance can be written with narrow pulse width, positive voltage pulses, and reset to a low resistance using a narrow pulse width, negative amplitude pulse.
    Type: Application
    Filed: May 22, 2007
    Publication date: September 27, 2007
    Inventors: Tingkai Li, Lawrence Charneski, Wei-Wei Zhuang, David Evans, Sheng Hsu
  • Patent number: 7271081
    Abstract: A method is provided for forming a metal/semiconductor/metal (MSM) current limiter and resistance memory cell with an MSM current limiter. The method includes the steps of: providing a substrate; forming an MSM bottom electrode overlying the substrate; forming a ZnOx semiconductor layer overlying the MSM bottom electrode, where x is in the range between about 1 and about 2, inclusive; and, forming an MSM top electrode overlying the semiconductor layer, The ZnOx semiconductor can be formed through a number of different processes such as spin-coating, direct current (DC) sputtering, radio frequency (RF) sputtering, metalorganic chemical vapor deposition (MOCVD), or atomic layer deposition (ALD).
    Type: Grant
    Filed: August 31, 2005
    Date of Patent: September 18, 2007
    Assignee: Sharp Laboratories of America, Inc.
    Inventors: Tingkai Li, Sheng Teng Hsu, Wei-Wei Zhuang, David R. Evans
  • Patent number: 7272514
    Abstract: An electrical power generator is characterized by a plurality of system parameters. The generator includes a controller for protecting the generator. The controller obtains data from which a present operating point of the generator and a power generating capacity of the generator can be determined. The controller further monitors data indicative of at least one system parameter as a function of time to detect an abnormality in a value of the system parameter. The controller then categorizes a type of event that caused the abnormality with respect to the data indicative of the system parameter as a function of time, the present operating point, and the power generating capacity. Finally, the controller provides a response for addressing the type of event that caused the abnormality.
    Type: Grant
    Filed: June 17, 2005
    Date of Patent: September 18, 2007
    Assignee: Hamilton Sundstrand Corporation
    Inventors: Wei Wei Qi, Michael Rubbo, Richard Wainwright
  • Patent number: 7271120
    Abstract: A catalyst for the preparation of dimethyl carbonate from urea and methanol having a composition on weight base of: active component of from 20 to 50 wt %, and carrier of from 80 to 50 wt %, and prepared by equal-volume spraying and impregnating method is disclosed. The method for the synthesis of dimethyl carbonate can be carried out in a catalytic rectification reactor, said method comprising: (1) dissolving urea in methanol to form a methanol solution of urea; and (2) feeding the methanol solution of urea and methanol counter-currently into the reaction zone, wherein the reaction is carried out at conditions including reaction temperature of from 120° C. to 250° C., reaction pressure of from 0.1 MPa to 5 MPa, kettle bottom temperature of from 70° C. to 210° C., stripping section temperature of from 70° C. to 250° C., rectifying section temperature of from 70° C. to 280° C., and reflux ratio of from 1:1 to 20:1.
    Type: Grant
    Filed: August 22, 2005
    Date of Patent: September 18, 2007
    Assignees: Institute of Coal Chemistry, Chinese Academy of Sciences, Feicheng Acid Chemicals Co., Ltd.
    Inventors: Yuhan Sun, Wei Wei, Ning Zhao, Baoyuan Sun, Bingsheng Zhang, Yanjun Chen
  • Publication number: 20070190040
    Abstract: Described are simplified and efficient methods for preparing recombinant adenovirus using liposome-mediated cotransfection and the direct. observation of a cytopathic effect (CPE) in the transfected cells. Also disclosed are compositions and methods involving novel p53 adenovirus constructs, including methods for restoring p53 function and tumor suppression in cells and animals having abnormal p53.
    Type: Application
    Filed: October 14, 2005
    Publication date: August 16, 2007
    Inventors: Wei-Wei Zhang, Jack Roth
  • Patent number: 7256429
    Abstract: A method is provided for forming a buffered-layer memory cell. The method comprises: forming a bottom electrode; forming a colossal magnetoresistance (CMR) memory film overlying the bottom electrode; forming a memory-stable semiconductor buffer layer, typically a metal oxide, overlying the memory film; and, forming a top electrode overlying the semiconductor buffer layer. In some aspects of the method the semiconductor buffer layer is formed from YBa2Cu3O7?X (YBCO), indium oxide (In2O3), or ruthenium oxide (RuO2), having a thickness in the range of 10 to 200 nanometers (nm). The top and bottom electrodes may be TiN/Ti, Pt/TiN/Ti, In/TiN/Ti, PtRhOx compounds, or PtIrOx compounds. The CMR memory film may be a Pr1?XCaXMnO3 (PCMO) memory film, where x is in the region between 0.1 and 0.6, with a thickness in the range of 10 to 200 nm.
    Type: Grant
    Filed: December 21, 2005
    Date of Patent: August 14, 2007
    Assignee: Sharp Laboratories of America, Inc.
    Inventors: Sheng Teng Hsu, Tingkai Li, Fengyan Zhang, Wei Pan, Wei-Wei Zhuang, David R. Evans, Masayuki Tajiri
  • Patent number: 7252989
    Abstract: An adenoviral supervector system is disclosed that is capable of expressing more than 7.5 kilobases of heterologous DNA in a replication defective adenoviral vector. The supervector system comprises an adenoviral vector construct and a helper cell. The vector construct is capable of being replicated and packaged into a virion particle in the helper cell. In particular, the helper cell expresses DNA from the E2 region of the adenovirus 5 genome and complements deletions in that region in the vector construct. In certain embodiments, the disclosed invention comprises tissue specific expression of up to 30 kb of heterologous DNA directed by an adenoviral vector. Also disclosed are methods of transferring heterologous DNA into mammalian cells.
    Type: Grant
    Filed: April 4, 1994
    Date of Patent: August 7, 2007
    Assignee: Board of Regents, The University of Texas System
    Inventors: Wei-Wei Zhang, Jack Roth
  • Publication number: 20070150595
    Abstract: Identifying a location and download schedule of web services. Responsive to a request from the application program, the system generates a list of the web services available to an application program along with locations and schedule times associated with the web services. The schedule times implement load management of the web services. The application program accesses the web services at the identified locations at the determined schedule times.
    Type: Application
    Filed: December 23, 2005
    Publication date: June 28, 2007
    Applicant: Microsoft Corporation
    Inventors: Aayaz Bhorania, Wei Wei Cho, Liang Ge, Stephen Husak, Frederic Azera, Colin Acton
  • Publication number: 20070150478
    Abstract: Identifying a location of a metadata package to an application program. The system maintains a plurality of metadata packages and locations associated therewith. The plurality of metadata packages is filtered based on attributes in a request received from the application program to identify at least one metadata package. The location associated with the identified metadata package is sent to the application program.
    Type: Application
    Filed: December 23, 2005
    Publication date: June 28, 2007
    Applicant: Microsoft Corporation
    Inventors: Wei Wei Cho, Aayaz Bhorania, Amy Thompson, Stephen Husak, Frederic Azera, Colin Acton
  • Patent number: 7235407
    Abstract: A multi-layer PrxCa1-xMnO3 (PCMO) thin film capacitor and associated deposition method are provided for forming a bipolar switching thin film. The method comprises: forming a bottom electrode; depositing a nanocrystalline PCMO layer; depositing a polycrystalline PCMO layer; forming a multi-layer PCMO film with bipolar switching properties; and, forming top electrode overlying the PCMO film. If the polycrystalline layers are deposited overlying the nanocrystalline layers, a high resistance can be written with narrow pulse width, negative voltage pulses. The PCMO film can be reset to a low resistance using a narrow pulse width, positive amplitude pulse. Likewise, if the nanocrystalline layers are deposited overlying the polycrystalline layers, a high resistance can be written with narrow pulse width, positive voltage pulses, and reset to a low resistance using a narrow pulse width, negative amplitude pulse.
    Type: Grant
    Filed: May 27, 2004
    Date of Patent: June 26, 2007
    Assignee: Sharp Laboratories of America, Inc.
    Inventors: Tingkai Li, Lawrence J. Charneski, Wei-Wei Zhuang, David R. Evans, Sheng Teng Hsu
  • Publication number: 20070142516
    Abstract: The present invention relates a adhesive composition, which comprising from 50 to 99 weight parts of water-based solvent, from 0.5 to 10 weight parts of polyvinyl alcohol, and from 0.01 to 2 weight parts of R1Si(OR2)3, wherein R1 is a hydrocarbonyl group having a cross-linking functional group and R2s are same or different and each is a hydrogen atom or hydrocarbonyl group. A pre-treatment method for support film is also related, wherein the support film is endowed with —Si—O— groups and can be used to manufacture polarizing sheets with the adhesive composition together.
    Type: Application
    Filed: November 12, 2006
    Publication date: June 21, 2007
    Inventor: Kang-Wei Wei
  • Publication number: 20070131870
    Abstract: A multiplexed capillary electrophoresis (CE) method using fluorescence detection for a plurality of samples is improved economically and in terms of instrument complexity by irradiating the plurality of samples with a single non-coherent light source as the excitation light source for all of the channels. The preferred light source is a light-emitting-diode (LED).
    Type: Application
    Filed: December 12, 2005
    Publication date: June 14, 2007
    Applicant: COMBISEP
    Inventors: Ho Pang, Wei Wei
  • Patent number: 7229806
    Abstract: An in vivo method for the production of pHS via a recombinant host cell is disclosed. The host cell expresses at least one gene encoding a polypeptide having para-hydroxycinnamic acid decarboxylase activity in combination with either at least one gene encoding a polypeptide having tyrosine ammonia lyase activity or at least one gene encoding a polypeptide having phenylalanine ammonia lyase activity.
    Type: Grant
    Filed: May 16, 2003
    Date of Patent: June 12, 2007
    Assignee: E. I. du Pont de Nemours and Company
    Inventors: Arie Ben-Bassat, Wei Wei Qi, Fateme Sima Sariaslani, Xiao-Song Tang, Todd M. Vannelli