Patents by Inventor Qasem Ramadan

Qasem Ramadan 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).

  • Publication number: 20110192726
    Abstract: There is presently provided a device for detecting an analyte particle in a sample. The device comprises a chamber having an interior surface upon which is located an electrode array. The electrode array comprises pairs of electrodes, each pair having an inner electrode and an outer electrode that substantially surrounds the inner electrode. Each pair of electrodes is coated with a capture molecule that recognises and binds the analyte particle that is to be identified and quantified. The device uses a combination of dielectrophoresis and impedance measurements to capture and measure analyte particles from a sample.
    Type: Application
    Filed: September 1, 2009
    Publication date: August 11, 2011
    Inventors: Yu Chen, Julien Reboud, En Hou Philip Wong, Kyaw Thu Moe, Se Ngie Winston Shim, Qasem Ramadan, Kum Cheong Tang
  • Publication number: 20100300978
    Abstract: A device for washing and isolating magnetic particles from a continuous fluid flow in at least one fluidic channel having an inlet at one end and an outlet at another end, said device comprising at least one magnetic source carrier arranged proximate to the at least one fluidic channel. The at least one magnetic source carrier is moveable between a first position and a second position. The at least one magnetic source carrier comprises at least one first magnetic source, wherein a movement of the at least one magnetic source carrier to the first position places the at least one first magnetic source at a first spatial location along the at least one fluidic channel such that said at least one first magnetic source generates a maxima magnetic field at said first spatial location that attracts the magnetic particles from the continuous fluid flow and assembles said magnetic particles at said first spatial location.
    Type: Application
    Filed: September 19, 2007
    Publication date: December 2, 2010
    Applicant: AGENCY FOR SCIENCE, TECHNOLOGY AND RESEARCH
    Inventors: Qasem Ramadan, Liang Zhu, Hongmiao Ji, Wen-Tso Liu
  • Patent number: 7791440
    Abstract: A method of forming, in or on a Si substrate, planar micro-coils with coil windings of high aspect ratio (>3) and a wide variety of geometric shapes. The micro-coils may be formed on a Si substrate and be embedded in a dielectric, or they may be formed in trenches within a Si substrate. The micro-coils may have field enhancing ferromagnetic pillars rising above the micro-coil plane, formed at positions of maximum magnetic field strength and the micro-coils may also include magnetic layers formed beneath the substrate and contacting the pillars to form a substantially closed pathway for the magnetic flux. The substrate may be thinned to membrane proportions. These micro-coils produce strong magnetic fields with strong field gradients and can be used in a wide variety of processes that involve the exertion of strong magnetic forces at small distances or the creation of magnetic wells for trapping and manipulating small particles.
    Type: Grant
    Filed: November 12, 2004
    Date of Patent: September 7, 2010
    Assignees: Agency For Science, Technology And Research, Nanyang Technological University
    Inventors: Qasem Ramadan, Victor Samper, Daniel Puiu Poenar, Chen Yu
  • Publication number: 20100170086
    Abstract: A magnetically-assisted chip assembly unit for assembling at least one chip having a mounting surface and an attachment surface, wherein the attachment surface supports a magnetisable layer thereon and opposes said mounting surface, onto a substrate that has a corresponding chip mounting surface. The unit comprises a template wafer having at least one recess adapted to accommodate therein said chip; and a master wafer having at least one magnetisable element; wherein the template wafer is mounted on the master wafer and said magnetisable element is located at least proximate to the at least one recess such that the magnetisable element is capable of manipulating the chip into the recess, via its magnetisable layer when the magnetisable element is magnetized and generates a magnetic field. Once in the recess, the attachment surface of the chip faces at least a portion of the recess and the mounting surface of the chip faces an opening of the recess.
    Type: Application
    Filed: November 3, 2006
    Publication date: July 8, 2010
    Applicant: AGENCY FOR SCIENCE, TECHNOLOGY AND RESEARCH
    Inventors: Qasem Ramadan, Seung Uk Yoon, Vaidyanathan Kripesh, Poi Siong Teo, Mahadevan Krishna Iyer
  • Publication number: 20050275497
    Abstract: A method of forming, in or on a Si substrate, planar micro-coils with coil windings of high aspect ratio (>3) and a wide variety of geometric shapes. The micro-coils may be formed on a Si substrate and be embedded in a dielectric, or they may be formed in trenches within a Si substrate. The micro-coils may have field enhancing ferromagnetic pillars rising above the micro-coil plane, formed at positions of maximum magnetic field strength and the micro-coils may also include magnetic layers formed beneath the substrate and contacting the pillars to form a substantially closed pathway for the magnetic flux. The substrate may be thinned to membrane proportions. These micro-coils produce strong magnetic fields with strong field gradients and can be used in a wide variety of processes that involve the exertion of strong magnetic forces at small distances or the creation of magnetic wells for trapping and manipulating small particles.
    Type: Application
    Filed: November 12, 2004
    Publication date: December 15, 2005
    Inventors: Qasem Ramadan, Victor Samper, Daniel Poenar, Chen Yu