Patents by Inventor Nan Zhang

Nan 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: 7932494
    Abstract: A method of characterizing the vibrational performance of a charged particle beam microscope system having at least one encoder is disclosed. The encoder is part of a control system for controlling the speed of a stage whereupon a sample is secured for imaging. A plurality of images each corresponding to a specific encoder working frequency are analyzed to generate imaged pattern vibration amplitude information over an imaging time period. The generated imaged pattern vibration amplitude information is then transformed to generate an imaged pattern vibration amplitude information over a range of encoder working frequencies. Information of system vibrational performance is then derived from the encoder working frequency-based vibration amplitude information. As a result, the vibrational performance of the system is characterized to describe the system vibrational behavior in terms of imaged pattern vibration amplitudes at varying working frequencies of the encoder.
    Type: Grant
    Filed: March 3, 2009
    Date of Patent: April 26, 2011
    Assignee: Hermes Microvision, Inc.
    Inventor: Nan Zhang
  • Publication number: 20110085171
    Abstract: This invention provides methods of array reading and readers of assay result arrays wherein light can be scanned onto analytical region array members from a light source and/or light can be scanned from array members to a detector. One or more mirrors can have one of more pivotable axes enabling scanning light paths to be established between assay result arrays and other components of an analytical device.
    Type: Application
    Filed: August 18, 2010
    Publication date: April 14, 2011
    Applicant: MicroPoint Bioscience Inc.
    Inventors: Nan Zhang, Pingyi Yan
  • Patent number: 7924079
    Abstract: A simple, low cost circuit with only passive components, and thus low power consumption, is provided for baseline restoration of an AC coupled signal. The circuit includes a passive network of diodes arranged in a star configuration and an RF-transformer. A differential signal strategy may be employed by including a differential amplifier at the input and output of the passive network.
    Type: Grant
    Filed: September 11, 2009
    Date of Patent: April 12, 2011
    Assignee: Siemens Medical Solutions USA, Inc.
    Inventors: Matthias J. Schmand, Nan Zhang
  • Publication number: 20110074426
    Abstract: An emission tomography detector module and an emission tomography scanner are disclosed. In at least one embodiment, the emission tomography detector modules includes a scintillator to capture an photon, the scintillator emitting a scintillating light on capturing the photon; a first type of solid-state photodetector to detect the scintillating light; and a second type of solid-state photodetector to detect the scintillating light, wherein the first type of solid-state photodetector and the second type of solid-state photodetector are different with respect to a detecting property.
    Type: Application
    Filed: September 28, 2009
    Publication date: March 31, 2011
    Inventors: Matthias J. Schmand, Markus Vester, Nan Zhang
  • Patent number: 7915266
    Abstract: This invention relates to methods for treating or inhibiting cancers in a mammal in need thereof, which comprises administering an effective amount of a 6-Aryl-7-halo-imidazo[1,2 -a]pyrimidine compound of the formula: or pharmaceutically acceptable salts thereof.
    Type: Grant
    Filed: September 19, 2007
    Date of Patent: March 29, 2011
    Assignee: Wyeth Holdings Corporation
    Inventors: Nan Zhang, Semiramis Ayral-Kaloustian
  • Publication number: 20100224792
    Abstract: A method of characterizing the vibrational performance of a charged particle beam microscope system having at least one encoder is disclosed. The encoder is part of a control system for controlling the speed of a stage whereupon a sample is secured for imaging. A plurality of images each corresponding to a specific encoder working frequency are analyzed to generate imaged pattern vibration amplitude information over an imaging time period. The generated imaged pattern vibration amplitude information is then transformed to generate an imaged pattern vibration amplitude information over a range of encoder working frequencies. Information of system vibrational performance is then derived from the encoder working frequency-based vibration amplitude information. As a result, the vibrational performance of the system is characterized to describe the system vibrational behavior in terms of imaged pattern vibration amplitudes at varying working frequencies of the encoder.
    Type: Application
    Filed: March 3, 2009
    Publication date: September 9, 2010
    Inventor: Nan ZHANG
  • Publication number: 20100089815
    Abstract: This invention provides lateral flow filters with pore size gradients and with features to prevent peripheral flows around the filter. The filters can be laminated composites of two or more planar filter layers. Cartridges employing the filters can include a filtration chamber configured to retain the lateral flow filters including a port for sample application and a capillary channel for filtrate egress. The fluid egress port can be positioned to receive filtrate from one filter layer but not another.
    Type: Application
    Filed: October 15, 2008
    Publication date: April 15, 2010
    Applicant: MicroPoint Bioscience Inc
    Inventors: Nan Zhang, Zhiliang Wan, Harshal Surangalikar
  • Publication number: 20100088075
    Abstract: A method of optimising apparatus utilised within a processing system includes defining a system model indicative of a predetermined range of apparatus options within a processing system, constraints indicative of feasible interconnections between each apparatus, and parameters indicative of performance criteria associated with each apparatus. The system model is analysed with respect to predetermined criteria to determine a preferred arrangement of apparatus within the processing system. A parameter relating to at least one apparatus is indicative of the availability and/or the reliability of the apparatus expressed as a function of time.
    Type: Application
    Filed: February 26, 2008
    Publication date: April 8, 2010
    Applicant: THE UNIVERSITY OF MANCHESTER
    Inventors: Qiying Yin, Nan Zhang
  • Publication number: 20100076300
    Abstract: A data processing process and embodiment for optimizing the signal path for multi-modality imaging is described. The embodiment and process optimizes the signal to noise ratio in a positron emission tomography (PET) signal path utilizing scintillation crystals, avalanche photo diodes, and charge sensitive preamplifiers in a dual modality MRI/PET scanner. The dual use of both and analog pole zero circuit and a digital filter enables higher signal levels or a fixed ADC input range and thus a higher possible signal to noise ratio in the presence of significant pileup caused by high positron activity. The higher signal to noise ratio is needed in the PET signal architecture, because of the presence of non-modal time varying electromagnetic fields from the MR, which are a significant source of noise for the wideband PET signal modality.
    Type: Application
    Filed: September 22, 2009
    Publication date: March 25, 2010
    Applicant: SIEMENS MEDICAL SOLUTIONS USA, INC.
    Inventors: Roger E. Arseneau, James Frank Caruba, Michael E. Casey, Mark Musrock, Nan Zhang
  • Publication number: 20100074396
    Abstract: Medical imaging may be accomplished with a high photoconductive gain at a relatively low operating voltage by employing a black silicon photodetector and integrating CMOS components with elements of the photodetector.
    Type: Application
    Filed: July 6, 2009
    Publication date: March 25, 2010
    Applicant: Siemens Medical Solutions USA, Inc.
    Inventors: Matthias J. Schmand, Debora Henseler, Ronald Grazioso, Nan Zhang, Mark S. Andreaco
  • Publication number: 20100067001
    Abstract: An optical mask positioned on a scintillator array. The optical mask includes a reflective layer. One or more windows can be positioned on the surface of optical mask.
    Type: Application
    Filed: September 14, 2009
    Publication date: March 18, 2010
    Applicant: SIEMENS MEDICAL SOLUTIONS USA, INC.
    Inventors: James L. Corbeil, Nan Zhang
  • Publication number: 20100065746
    Abstract: A representative positron emission tomography (PET) system includes a positron emission tomography detector having one or more silicon photomultipliers that output silicon photomultipliers signals. The PET system further includes a calibration system that is electrically coupled to the silicon photomultipliers. The calibration system determines a single photoelectron response of the silicon photomultipliers signals and adjusts a gain of the silicon photomultipliers based on the single photoelectron response.
    Type: Application
    Filed: September 15, 2009
    Publication date: March 18, 2010
    Applicant: Siemens Corporation
    Inventors: Ronald Grazioso, Debora Henseler, Nan Zhang
  • Publication number: 20100066426
    Abstract: A simple, low cost circuit with only passive components, and thus low power consumption, is provided for baseline restoration of an AC coupled signal. The circuit includes a passive network of diodes arranged in a star configuration and an RF-transformer. A differential signal strategy may be employed by including a differential amplifier at the input and output of the passive network.
    Type: Application
    Filed: September 11, 2009
    Publication date: March 18, 2010
    Applicant: Siemens Medical Solutions USA, Inc.
    Inventors: Matthias J. Schmand, Nan Zhang
  • Publication number: 20100061982
    Abstract: The invention relates to 3-substituted-1H-indole, 3-substituted-1H-pyrrolo[2,3-b]pyridine, and 3-substituted-1H-pyrrolo[3,2-b]pyridine compounds of the Formula 1: or a pharmaceutically acceptable salt thereof, wherein the constituent variables are as defined herein, compositions comprising the compounds, and methods for making and using the compounds.
    Type: Application
    Filed: September 10, 2009
    Publication date: March 11, 2010
    Applicant: Wyeth
    Inventors: Semiramis Ayral-Kaloustian, Tarek Suhayl Mansour, Hwei-Ru Tsou, Nan Zhang, Aranapakam Mudumbai Venkatesan, Li Di, Edward Harvel Kerns
  • Publication number: 20100015141
    Abstract: The invention relates to 4,6-disubstituted-1H-pyrazolo[3,4-d]pyrimidin-4-amine compounds, including 4-phenoxy-6-aryl-1H-pyrazolo[3,4-d]pyrimidine and N-aryl-6-aryl-1H-pyrazolo[3,4-d]pyrimidin-4-amine compounds of the Formula I: or a pharmaceutically acceptable salt thereof, wherein the constituent variables are as defined herein, compositions comprising the compounds, and methods for making and using the compounds.
    Type: Application
    Filed: July 21, 2009
    Publication date: January 21, 2010
    Applicant: Wyeth
    Inventors: Matthew Gregory Bursavich, Pawel Wojciech Nowak, David Malwitz, Sabrina Lombardi, Adam Matthew Gilbert, Nan Zhang, Semiramis Ayral-Kaloustian, James Thomas Anderson, Natasja Brooijmans
  • Publication number: 20100009430
    Abstract: Analytical cartridges, systems and methods of processing a sample for analysis using capillary flows. Vertical gradient sample filtration provides filtrate to an incubation chamber for a time controlled by a flow modulator at the outlet of the incubation chamber. The flow modulator can include a serpentine capillary flow path without side walls. Incubated filtrate can flow from the incubation chamber to a detection channel after a predetermined time. The detection chamber can include one or more analytical regions in a porous substrate for detection of two or more analytes on the same cartridge from the same sample.
    Type: Application
    Filed: June 12, 2009
    Publication date: January 14, 2010
    Applicant: MicroPoint Bioscience Inc
    Inventors: Zhiliang Wan, Nan Zhang
  • Publication number: 20090311217
    Abstract: The invention relates to 3-substituted-1H-indole compounds of the Formula I: or a pharmaceutically acceptable salt thereof, wherein the constituent variables are as defined herein, compositions comprising the compounds, and methods for making and using the compounds.
    Type: Application
    Filed: May 28, 2009
    Publication date: December 17, 2009
    Applicant: Wyeth
    Inventors: Matthew Gregory Bursavich, Nan Zhang, Semiramis Ayral-Kaloustian, James Thomas Anderson, Thai Hiep Nguyen, Sabrina Lombardi, David Malwitz, Natasja Brooijmans, Derek Cecil Cole, Adam Matthew Gilbert, Pawel Wojciech Nowak, Kaapjoo Park, Sasmita Das, Hwei-Ru Tsou, Aranapakam Mudumbai Venkatesan, Mercy Adufa Otteng, Gary Harold Birnberg, Gloria Jean MacEwan
  • Publication number: 20090298820
    Abstract: The invention relates to 3-substituted-1H-pyrrolo[2,3-b]pyridine, and 3-substituted-1H-pyrrolo[3,2-b]pyridine compounds of the Formula 1: or a pharmaceutically acceptable salt thereof, wherein the constituent variables are as defined herein, compositions comprising the compounds, and methods for making and using the compounds.
    Type: Application
    Filed: May 28, 2009
    Publication date: December 3, 2009
    Applicant: Wyeth
    Inventors: Hwei-Ru Tsou, Gary Harold Birnberg, Gloria Jean MacEwan, Semiramis Ayral-Kaloustian, Matthew Gregory Bursavich, Sabrina Lombardi, Nan Zhang, Adam Matthew Gilbert, George Theordore Grosu, Natasja Brooijmans, Thai Hiep Nguyen
  • Publication number: 20090270363
    Abstract: The present invention discloses fused bicyclic 2-aryl- or 2-heteroarylthiazolyl compounds and their pharmaceutically acceptable salts and esters thereof, which are useful for inhibiting the growth of cancerous cells, inhibiting human breast carcinoma tumor growth in particular and to treat diseases or disorders associated with securin, including elevated securin levels.
    Type: Application
    Filed: March 27, 2009
    Publication date: October 29, 2009
    Applicant: Wyeth
    Inventors: Nan Zhang, Semiramis Ayral-Kaloustian, Tarek Suhayl Mansour, Thai Hiep Nguyen, Chuansheng Niu, Edward Christian Rosfjord, Ronald Suayan, Hwei-Ru Tsou
  • Patent number: RE42376
    Abstract: This invention provides compounds of formula I having the structure wherein G1, G2, R1, R4, Z, n, and X are defined in the specification or a pharmaceutically acceptable salt thereof which are useful as antineoplastic agents and in the treatment of polycystic kidney disease.
    Type: Grant
    Filed: May 21, 2010
    Date of Patent: May 17, 2011
    Assignee: Wyeth Holdings Corporation
    Inventors: Allan Wissner, Hwei-Ru Tsou, Dan M. Berger, Middleton B. Floyd, Jr., Philip R. Hamann, Nan Zhang, Philip Frost