Patents by Inventor Adrian Podpirka

Adrian Podpirka 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: 11926925
    Abstract: Methods and systems for growing thin films via molecular-beam epitaxy (MBE) on substrates are provided. The methods and systems utilize a thermally conductive backing plate including an infrared-absorbing coating (IAC) formed, for example, on one side of the thermally conductive backing plate to provide an asymmetric emissivity that absorbs infrared radiation (IR) on the side having the IRC and does not on the non-coated side of the thermally conductive backing plate (e.g., refractive metal or alloy). The asymmetric emissivity shields the thin film being deposited on a substrate from the IR during formation.
    Type: Grant
    Filed: November 11, 2020
    Date of Patent: March 12, 2024
    Assignee: The Johns Hopkins University
    Inventors: David B. Shrekenhamer, Adrian A. Podpirka, Michael C. Brupbacher
  • Publication number: 20210140069
    Abstract: Methods and systems for growing thin films via molecular-beam epitaxy (MBE) on substrates are provided. The methods and systems utilize a thermally conductive backing plate including an infrared-absorbing coating (IAC) formed, for example, on one side of the thermally conductive backing plate to provide an asymmetric emissivity that absorbs infrared radiation (IR) on the side having the IRC and does not on the non-coated side of the thermally conductive backing plate (e.g., refractive metal or alloy). The asymmetric emissivity shields the thin film being deposited on a substrate from the IR during formation.
    Type: Application
    Filed: November 11, 2020
    Publication date: May 13, 2021
    Inventors: David B. Shrekenhamer, Adrian A. Podpirka, Michael C. Brupbacher
  • Publication number: 20190271910
    Abstract: The present invention provides a method for creating patterns, with features down to the nanometer scale, in phase change materials using a heated probe. The heated probe contacts the phase change material thereby inducing a local phase change, resulting in a dramatic contrast in property—including electrical resistance, optical reflectance, and volume—relative to the uncontacted regions of the phase change material. The phase change material can be converted back to its original phase (i.e. the patterns can be erased) by appropriate thermal cycling.
    Type: Application
    Filed: May 22, 2019
    Publication date: September 5, 2019
    Inventors: Laura Ruppalt, Woo K. Lee, Paul E. Sheehan, Adrian Podpirka
  • Publication number: 20170242053
    Abstract: The present invention provides a method for creating patterns, with features down to the nanometer scale, in phase change materials using a heated probe. The heated probe contacts the phase change material thereby inducing a local phase change, resulting in a dramatic contrast in property—including electrical resistance, optical reflectance, and volume—relative to the uncontacted regions of the phase change material. The phase change material can be converted back to its original phase (i.e. the patterns can be erased) by appropriate thermal cycling.
    Type: Application
    Filed: February 13, 2017
    Publication date: August 24, 2017
    Inventors: Laura Ruppalt, Woo K. Lee, Paul E. Sheehan, Adrian Podpirka