Patents by Inventor Dipankar Choudhury

Dipankar Choudhury 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: 20250075084
    Abstract: A composite comprising: substrate having thereon an intermediate layer and a diamond-like carbon (DLC) top layer on said intermediate layer, with increased adhesion strength to DLC and other hard coatings, and which provides a buffer layer for adjusting the uneven expansion/compression behavior of DLC coatings and substrates.
    Type: Application
    Filed: November 20, 2024
    Publication date: March 6, 2025
    Applicant: BOARD OF TRUSTEES OF THE UNIVERSITY OF ARKANSAS
    Inventors: Dipankar Choudhury, Min Zou
  • Publication number: 20220251395
    Abstract: A composite comprising: substrate having thereon an intermediate layer and a diamond-like carbon (DLC) top layer on said intermediate layer, with increased adhesion strength to DLC and other hard coatings, and which provides a buffer layer for adjusting the uneven expansion/compression behavior of DLC coatings and substrates.
    Type: Application
    Filed: February 7, 2022
    Publication date: August 11, 2022
    Applicant: BOARD OF TRUSTEES OF THE UNIVERSITY OF ARKANSAS
    Inventors: Dipankar Choudhury, Min Zou
  • Patent number: 10875248
    Abstract: The present invention relates generally to methods of fabricating surface topography based on a scanned surface topography. The method converts 3D scanned surface topography data that have submicron resolution to digital formats that can be stored, manipulated, or tiled, and used as an input for replicating the surface topography with submicron resolution on another substrate. The digitized surface topography data is then converted to input for 1) 3D printing to replicate the scanned surface topography with submicron resolution, with or without a subsequent coating layer or layers to impart additional properties and/or features, 2) 3D printing a master that replicates the scanned surface topography with submicron resolution, which will be used for fast replica molding of the surface topography onto another substrate, and 3) creating a photomask with submicron resolution for transferring the surface topography to a metal substrate surface through subsequent photolithography and etching processes.
    Type: Grant
    Filed: February 11, 2019
    Date of Patent: December 29, 2020
    Assignee: Board Of Trustees Of The University Of Arkansas
    Inventors: Mahyar Afshar Mohajer, Josue Goss, Dipankar Choudhury, Min Zou, Shelby Robert Maddox
  • Publication number: 20190248073
    Abstract: The present invention relates generally to methods of fabricating surface topography based on a scanned surface topography. The method converts 3D scanned surface topography data that have submicron resolution to digital formats that can be stored, manipulated, or tiled, and used as an input for replicating the surface topography with submicron resolution on another substrate. The digitized surface topography data is then converted to input for 1) 3D printing to replicate the scanned surface topography with submicron resolution, with or without a subsequent coating layer or layers to impart additional properties and/or features, 2) 3D printing a master that replicates the scanned surface topography with submicron resolution, which will be used for fast replica molding of the surface topography onto another substrate, and 3) creating a photomask with submicron resolution for transferring the surface topography to a metal substrate surface through subsequent photolithography and etching processes.
    Type: Application
    Filed: February 11, 2019
    Publication date: August 15, 2019
    Applicant: BOARD OF TRUSTEES OF THE UNIVERSITY OF ARKANSAS
    Inventors: Mahyar Afshar Mohajer, Josue Goss, Dipankar Choudhury, Min Zou, Shelby Robert Maddox