Patents by Inventor Vijaya Srinivasu Vallabhapurapu

Vijaya Srinivasu Vallabhapurapu 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: 20240373652
    Abstract: A non-volatile resistive random-access memory (ReRAM), which includes a first electrode, a second electrode, and a resistive switching/active layer which is located between the first and second electrode. The switching layer contains milk or is milk-based, or contains an emulsion containing lactose, fat, protein and water. The switching layer may more specifically contain cow milk.
    Type: Application
    Filed: August 29, 2022
    Publication date: November 7, 2024
    Applicant: University of South Africa
    Inventors: Sreedevi Vallabhapurapu, Vijaya Srinivasu Vallabhapurapu, Zolile Wiseman Dlamini
  • Patent number: 11944023
    Abstract: The invention relates to a non-volatile resistive random access memory (ReRAM), a non-volatile ReRAM composition and to a method for manufacturing a non-volatile non-volatile ReRAM. The ReRAM includes a first electrode, a second electrode and a resistive switching/active layer which is located between the first and second electrodes. The switching layer contains chitosan and aluminium doped/incorporated zinc oxide. The switching/active layer may be configured to perform a switching operation according to an applied voltage. The switching/active layer may be in the form of a film. The switching/active layer may be coated/applied onto the first electrode and the second electrode may be placed/applied/provided over the switching/active layer such that the switching/active layer is located/wedged in-between the two electrodes.
    Type: Grant
    Filed: November 26, 2019
    Date of Patent: March 26, 2024
    Assignee: University of South Africa
    Inventors: Ananthakrishnan Srinivasan, Sreedevi Vallabhapurapu, Vijaya Srinivasu Vallabhapurapu
  • Publication number: 20210399218
    Abstract: The invention relates to a non-volatile resistive random access memory (ReRAM), a non-volatile ReRAM composition and to a method for manufacturing a non-volatile non-volatile ReRAM. The ReRAM includes a first electrode, a second electrode and a resistive switching/active layer which is located between the first and second electrodes. The switching layer contains chitosan and aluminium doped/incorporated zinc oxide. The switching/active layer may be configured to perform a switching operation according to an applied voltage. The switching/active layer may be in the form of a film. The switching/active layer may be coated/applied onto the first electrode and the second electrode may be placed/applied/provided over the switching/active layer such that the switching/active layer is located/wedged in-between the two electrodes.
    Type: Application
    Filed: November 26, 2019
    Publication date: December 23, 2021
    Applicant: University of South Africa
    Inventors: Ananthakrishnan Srinivasan, Sreedevi Vallabhapurapu, Vijaya Srinivasu Vallabhapurapu
  • Patent number: 9938169
    Abstract: A method and an apparatus for treating a fluid are disclosed. The apparatus includes a cylindrical chamber of non-magnetic material for holding a volume of fluid to be treated. The fluid contains a quantity of magnetic particles, preferably nanoparticles, having desired properties for treating the fluid. The apparatus includes a magnetic field generator for creating a non-static magnetic field within the chamber, thereby to induce motion in the magnetic particles within the chamber in use. The chamber has an inlet through which fluid to be treated can be introduced, and an outlet through which treated fluid can be removed from the chamber. Sets of windings are disposed concentrically about the chamber and arranged to create a rotating magnetic field within the chamber. Preferably the rotating magnetic field rotates in the opposite sense to swirling rotation of the fluid in the chamber. This enhances contact between the nano-particles and the fluid to be treated.
    Type: Grant
    Filed: November 14, 2013
    Date of Patent: April 10, 2018
    Assignee: UNIVERSITY OF SOUTH AFRICA
    Inventors: Ivan William Hofsajer, Vijaya Srinivasu Vallabhapurapu, Wei Hua Ho
  • Publication number: 20150299004
    Abstract: A method and an apparatus for treating a fluid are disclosed. The apparatus includes a cylindrical chamber of non-magnetic material for holding a volume of fluid to be treated. The fluid contains a quantity of magnetic particles, preferably nanoparticles, having desired properties for treating the fluid. The apparatus includes a magnetic field generator for creating a non-static magnetic field within the chamber, thereby to induce motion in the magnetic particles within the chamber in use. The chamber has an inlet through which fluid to be treated can be introduced, and an outlet through which treated fluid can be removed from the chamber. Sets of windings are disposed concentrically about the chamber and arranged to create a rotating magnetic field within the chamber. Preferably the rotating magnetic field rotates in the opposite sense to swirling rotation of the fluid in the chamber. This enhances contact between the nano-particles and the fluid to be treated.
    Type: Application
    Filed: November 14, 2013
    Publication date: October 22, 2015
    Inventors: Ivan William Hofsajer, Vijaya Srinivasu Vallabhapurapu, Wei Hua Ho