Patents by Inventor Mei Lei

Mei Lei 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: 10770100
    Abstract: A bias circuit comprises a closed loop gain stage arranged to determine a difference between a first current in a first branch circuit and a second current in a second branch circuit, where the first branch circuit and second branch circuit are coupled to respective terminals of a magnetic resistor (MR). A first set of current mirrors is arranged to provide a source current to the first terminal of the MR and the second set of current mirrors is arranged to provide a sink current to the second terminal of the MR. The first set of current mirrors and a second set of current mirrors are balanced to reduce a difference in setting time between the source current and sink current. The source current and sink current further reduce the difference between the first current and the second current to provide a constant voltage bias to the MR based on a voltage of a voltage source.
    Type: Grant
    Filed: December 4, 2019
    Date of Patent: September 8, 2020
    Assignee: Marvell Asia Pte, Ltd.
    Inventors: Xiaowei Huang, Mei Lei, Yunfan Zhang, Su Win Myat
  • Publication number: 20040242462
    Abstract: This invention concerns the mammalian Tob gene and its coding products, as well as its uses in such areas as the diagnosis and treatment of hypomnesia and amnesia. In addition, this invention also concerns pharmaceutical compositions and tonics containing the Tob protein, as well as the uses of Tob in the screening of drugs concerned with improving memory and treating amnesia or raising movement coordination.
    Type: Application
    Filed: July 6, 2004
    Publication date: December 2, 2004
    Inventors: Jing Naihe, Mei Lei Jin
  • Patent number: 5934358
    Abstract: Method and apparatus for retarding a flow of molten metal to a metal caster. The flow of molten metal is confined within a duct 11 having an elongate cross-section transverse to the flow directions to shape the flow in a sheet formation. The sheet formation flow is subjected to a magnetic field extending through the flow transversely of the sheet formation and varying sinusoidally along the flow direction whereby to induce circulating electric currents in the molten metal which interact with the magnetic field to produce forces on the molten metal which retard the flow. The magnetic field may be induced by two sets 13 of permanent magnets 14 spaced one set to either side of the duct 11, the magnets 14 of each set being spaced along the flow direction and being of successively opposite magnetic polarity.
    Type: Grant
    Filed: April 24, 1997
    Date of Patent: August 10, 1999
    Assignees: Ishikawajima-Harima Heavy Industries Company Limited, BHP Steel (JLA) Pty Ltd
    Inventors: Peter James Ellis, Mary Mei Lei Ng, Leslie George Gore