Patents by Inventor Indra PURNAMA

Indra PURNAMA 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).

  • Memory device including a domain wall and ferromagnetic driver nanowire
    Patent number: 9502090
    Abstract: A memory device comprising a ferromagnetic data nanowire, a ferromagnetic driver nanowire, read element and/or a spaced write element positioned about the data nanowire, wherein driving a domain wall in the driver nanowire remotely drives a domain wall in the data nanowire past the read element and/or the write element.
    Type: Grant
    Filed: January 2, 2014
    Date of Patent: November 22, 2016
    Assignee: NANYANG TECHNOLOGICAL UNIVERSITY
    Inventors: Wen Siang Lew, Indra Purnama, Chandra Sekhar Murapaka
  • Non-volatile logic device
    Patent number: 9431599
    Abstract: A non-volatile logic device, comprising: a first input element magnetizable along a first direction to impart or change a chirality of a domain wall traversing the first input element a second input element configured to transport the domain wall, a magnetization of the second input element along a second direction representing a second logical input; a bifurcated output section comprising a pair of output elements for receiving the domain wall from the second input element, a magnetization of at least part of the output elements being changeable by propagation of the domain wall along the output elements; and a non-magnetic conductive element; wherein the magnetization in an output element after propagation of the domain wall represents a value of a logical function selectable by passing an electrical current through the non-magnetic conductive element to induce a magnetic field of a desired magnitude and direction in the second input element.
    Type: Grant
    Filed: May 19, 2014
    Date of Patent: August 30, 2016
    Assignee: NANYANG TECHNOLOGICAL UNIVERSITY
    Inventors: Wen Siang Lew, Chandrasekhar Murapaka, Indra Purnama, Sarjoosing Goolaup, Pankaj Sethi, Chinkhanlun Guite
  • NON-VOLATILE LOGIC DEVICE
    Publication number: 20160133827
    Abstract: A non-volatile logic device, comprising: a first input element magnetizable along a first direction to impart or change a chirality of a domain wall traversing the first input element a second input element configured to transport the domain wall, a magnetization of the second input element along a second direction representing a second logical input; a bifurcated output section comprising a pair of output elements for receiving the domain wall from the second input element, a magnetization of at least part of the output elements being changeable by propagation of the domain wall along the output elements; and a non-magnetic conductive element; wherein the magnetization in an output element after propagation of the domain wall represents a value of a logical function selectable by passing an electrical current through the non-magnetic conductive element to induce a magnetic field of a desired magnitude and direction in the second input element.
    Type: Application
    Filed: May 19, 2013
    Publication date: May 12, 2016
    Inventors: Wen Siang LEW, Chandra Sekhar MURAPAKA, Indra PURNAMA, Sarjoosing GOOLAUP, Pankaj SETHI, Chinkhanlun GUITE
  • MEMORY DEVICE
    Publication number: 20150371696
    Abstract: A memory device comprising a ferromagnetic data nanowire, a ferromagnetic driver nanowire, read element and/or a spaced write element positioned about the data nanowire, wherein driving a domain wall in the driver nanowire remotely drives a domain wall in the data nanowire past the read element and/or the write element.
    Type: Application
    Filed: January 2, 2014
    Publication date: December 24, 2015
    Inventors: Wen Siang LEW, Indra PURNAMA, Chandra Sekhar MURAPAKA