Patents by Inventor Arunava Gupta

Arunava Gupta 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: 11959182
    Abstract: Disclosed herein are precursor compounds, composite electrodes comprising the same, and methods of making and use thereof.
    Type: Grant
    Filed: October 26, 2021
    Date of Patent: April 16, 2024
    Assignees: THE BOARD OF TRUSTEES OF THE UNIVERSITY OF ALABAMA, THE ADMINISTRATORS OF THE TULANE EDUCATIONAL FUND
    Inventors: Pravin Shinde, James Donahue, Patricia R. Fontenot, Arunava Gupta, Shanlin Pan
  • Publication number: 20220042187
    Abstract: Disclosed herein are precursor compounds, composite electrodes comprising the same, and methods of making and use thereof.
    Type: Application
    Filed: October 26, 2021
    Publication date: February 10, 2022
    Inventors: Pravin Shinde, James Donahue, Patricia R. Fontenot, Arunava Gupta, Shanlin Pan
  • Patent number: 11186917
    Abstract: Disclosed herein are precursor compounds, composite electrodes comprising the same, and methods of making and use thereof.
    Type: Grant
    Filed: January 28, 2019
    Date of Patent: November 30, 2021
    Assignees: THE BOARD OF TRUSTEES OF THE UNIVERSITY OF ALABAMA, THE ADMINISTRATORS OF THE TULANE EDUCATIONAL FUND
    Inventors: Pravin Shinde, James Donahue, Patricia R. Fontenot, Arunava Gupta, Shanlin Pan
  • Publication number: 20190233953
    Abstract: Disclosed herein are precursor compounds, composite electrodes comprising the same, and methods of making and use thereof.
    Type: Application
    Filed: January 28, 2019
    Publication date: August 1, 2019
    Inventors: Pravin Shinde, James Donahue, Patricia Fontenot, Arunava Gupta, Shanlin Pan
  • Publication number: 20180195197
    Abstract: Disclosed herein are methods for forming carbon-modified nanostructured titanium-based materials, nanostructured electrodes, and nanostructured catalysts. Also disclosed herein are methods of use of the carbon-modified nanostructured titanium-based materials, nanostructured electrodes and nanostructured catalysts described herein.
    Type: Application
    Filed: March 7, 2018
    Publication date: July 12, 2018
    Inventors: Shanlin Pan, Zhichao Shan, Arunava Gupta, Archana S. Panikar
  • Publication number: 20150233010
    Abstract: Disclosed herein are methods for forming carbon-modified nanostructured titanium-based materials, nanostructured electrodes, and nanostructured catalysts. Also disclosed herein are methods of use of the carbon-modified nanostructured titanium-based materials, nanostructured electrodes and nanostructured catalysts described herein.
    Type: Application
    Filed: February 16, 2015
    Publication date: August 20, 2015
    Inventors: Shanlin Pan, Zhichao Shan, Arunava Gupta, Archana S. Panikar
  • Patent number: 7888757
    Abstract: A method of forming a magnetic memory device (and a resulting structure) on a low-temperature substrate, includes forming the memory device on a transparent substrate coated with a decomposable material layer subject to rapid heating resulting in a predetermined high pressure, and transferring the memory device to the low-temperature substrate.
    Type: Grant
    Filed: October 25, 2007
    Date of Patent: February 15, 2011
    Assignee: International Business Machines Corporation
    Inventor: Arunava Gupta
  • Patent number: 7674686
    Abstract: A method of forming a magnetic memory device (and a resulting structure) on a low-temperature substrate, includes forming the memory device on a transparent substrate coated with a decomposable material layer subject to rapid heating resulting in a predetermined high pressure, and transferring the memory device to the low-temperature substrate.
    Type: Grant
    Filed: October 25, 2007
    Date of Patent: March 9, 2010
    Assignee: International Business Machines Corporation
    Inventor: Arunava Gupta
  • Patent number: 7494896
    Abstract: A method of forming a magnetic memory device on a substrate includes forming the memory device on a transparent substrate coated with a decomposable material layer subject to rapid heating resulting in a predetermined high pressure, transferring the memory device to the substrate, and forming an organic transistor on the substrate prior to transfer of the magnetic memory device.
    Type: Grant
    Filed: June 12, 2003
    Date of Patent: February 24, 2009
    Assignee: International Business Machines Corporation
    Inventor: Arunava Gupta
  • Publication number: 20080055790
    Abstract: A method of forming a magnetic memory device (and a resulting structure) on a low-temperature substrate, includes forming the memory device on a transparent substrate coated with a decomposable material layer subject to rapid heating resulting in a predetermined high pressure, and transferring the memory device to the low-temperature substrate.
    Type: Application
    Filed: October 25, 2007
    Publication date: March 6, 2008
    Applicant: International Business Machines Corporation
    Inventor: Arunava Gupta
  • Publication number: 20080044930
    Abstract: A method of forming a magnetic memory device (and a resulting structure) on a low-temperature substrate, includes forming the memory device on a transparent substrate coated with a decomposable material layer subject to rapid heating resulting in a predetermined high pressure, and transferring the memory device to the low-temperature substrate.
    Type: Application
    Filed: October 25, 2007
    Publication date: February 21, 2008
    Applicant: International Business Machines Corporation
    Inventor: Arunava Gupta
  • Patent number: 7211446
    Abstract: A method of patterning a magnetic tunnel junction (MTJ) stack is provided. According to such method, an MTJ stack is formed having a free layer, a pinned layer and a tunnel barrier layer disposed between the free layer and the pinned layer. A first area of the MTJ stack is masked while the free layer of the MTJ is exposed in a second area. The free layer is then rendered electrically and magnetically inactive in the second area.
    Type: Grant
    Filed: June 11, 2004
    Date of Patent: May 1, 2007
    Assignees: International Business Machines Corporation, Infineon Technologies AG
    Inventors: Michael C. Gaidis, David W. Abraham, Stephen L. Brown, Arunava Gupta, Chanro Park, Wolfgang Raberg
  • Patent number: 7149105
    Abstract: Methods of manufacturing MTJ memory cells and structures thereof. A diffusion barrier is disposed between an anti-ferromagnetic layer and a pinned layer of an MTJ memory cell to improve thermal stability of the MTJ memory cell. The diffusion barrier may comprise an amorphous material or a NiFe alloy. An amorphous material may be disposed adjacent a bottom surface of a tunnel junction, within a free layer, or both. An MTJ memory cell with improved thermal stability and decreased Neel coupling is achieved.
    Type: Grant
    Filed: February 24, 2004
    Date of Patent: December 12, 2006
    Assignees: Infineon Technologies AG, International Business Machines Corporation
    Inventors: Stephen L. Brown, Arunava Gupta, Ulrich Klostermann, Stuart Stephen Papworth Parkin, Wolfgang Raberg, Mahesh Samant
  • Publication number: 20050277206
    Abstract: A method of patterning a magnetic tunnel junction (MTJ) stack is provided. According to such method, an MTJ stack is formed having a free layer, a pinned layer and a tunnel barrier layer disposed between the free layer and the pinned layer. A first area of the MTJ stack is masked while the free layer of the MTJ is exposed in a second area. The free layer is then rendered electrically and magnetically inactive in the second area.
    Type: Application
    Filed: June 11, 2004
    Publication date: December 15, 2005
    Applicants: International Business Machines Corporation, Infineon Technologies North America Corp.
    Inventors: Michael Gaidis, David Abraham, Stephen Brown, Arunava Gupta, Chanro Park, Wolfgang Raberg
  • Publication number: 20050185454
    Abstract: Methods of manufacturing MTJ memory cells and structures thereof. A diffusion barrier is disposed between an anti-ferromagnetic layer and a pinned layer of an MTJ memory cell to improve thermal stability of the MTJ memory cell. The diffusion barrier may comprise an amorphous material or a NiFe alloy. An amorphous material may be disposed adjacent a bottom surface of a tunnel junction, within a free layer, or both. An MTJ memory cell with improved thermal stability and decreased Neel coupling is achieved.
    Type: Application
    Filed: February 24, 2004
    Publication date: August 25, 2005
    Inventors: Stephen Brown, Arunava Gupta, Ulrich Klostermann, Stuart Papworth Parkin, Wolfgang Raberg, Mahesh Samant
  • Patent number: 6884630
    Abstract: Magnetic tunnel junction devices can be fabricated using a two-step deposition process wherein respective portions of the magnetic tunnel junction stack are defined independently of one another.
    Type: Grant
    Filed: January 21, 2003
    Date of Patent: April 26, 2005
    Assignees: Infineon Technologies AG, Internation Business Machines Corporation
    Inventors: Arunava Gupta, Kia-Seng Low
  • Publication number: 20040252559
    Abstract: A method of forming a magnetic memory device (and a resulting structure) on a low-temperature substrate, includes forming the memory device on a transparent substrate coated with a decomposable material layer subject to rapid heating resulting in a predetermined high pressure, and transferring the memory device to the low-temperature substrate.
    Type: Application
    Filed: June 12, 2003
    Publication date: December 16, 2004
    Applicant: International Business Machines Corporation
    Inventor: Arunava Gupta
  • Publication number: 20040087039
    Abstract: Magnetic tunnel junction devices can be fabricated using a two-step deposition process wherein respective portions of the magnetic tunnel junction stack are defined independently of one another.
    Type: Application
    Filed: January 21, 2003
    Publication date: May 6, 2004
    Inventors: Arunava Gupta, Kia-Seng Low
  • Patent number: 6552339
    Abstract: A goniometer for performing scanning probe microscopy on a substrate surface is disclosed. The goniometer has a cantilever, having a cantilevered end and a supported end and a tip disposed at the cantilevered end of the cantilever. The goniometer also has a block disposed at the supported end of the cantilever. The block has at least one pair of piezoelectric layers, a pair of electrodes disposed about each individual piezoelectric layer such that varying a potential difference applied between the individual electrodes of a pair of electrodes causes the corresponding piezoelectric layer to deform, and a first insulating material disposed between the individual electrodes for insulating the individual electrodes from each other. The individual piezoelectric layers are deformed at different rates resulting in a deformity of the block and tilting of the cantilever and tip connected therewith.
    Type: Grant
    Filed: May 17, 2000
    Date of Patent: April 22, 2003
    Assignee: International Business Machines Corporation
    Inventors: Arunava Gupta, Ravi Saraf
  • Patent number: 6333067
    Abstract: A method of forming the device, includes selective area deposition of a ferromagnetic material on a substrate. The substrate surface is partially covered with material having a crystal structure having at least one symmetry relation with the crystal structure of the ferromagnetic material.
    Type: Grant
    Filed: June 13, 2001
    Date of Patent: December 25, 2001
    Assignee: International Business Machines Corporation
    Inventors: Nestor A. Bojarczuk, Jr., Peter R. Duncombe, Supratik Guha, Arunava Gupta, Joseph M. Karasinski, Xinwei Li