Patents by Inventor Shane Harstad

Shane Harstad 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).

  • Room temperature ferromagnetic gadolinium silicide nanoparticles
    Patent number: 9907865
    Abstract: A particle usable as T1 and T2 contrast agents is provided. The particle is a gadolinium silicide (Gd5Si4) particle that is ferromagnetic at temperatures up to 290 K and is less than 2 ?m in diameter. An MRI contrast agent that includes a plurality of gadolinium silicide (Gd5Si4) particles that are less than 1 ?m in diameter is also provided. A method for creating gadolinium silicide (Gd5Si4) particles is also provided. The method includes the steps of providing a Gd5Si4 bulk alloy; grinding the Gd5Si4 bulk alloy into a powder; and milling the Gd5Si4 bulk alloy powder for a time of approximately 20 minutes or less.
    Type: Grant
    Filed: October 24, 2016
    Date of Patent: March 6, 2018
    Assignee: Iowa State University Research Foundation, Inc.
    Inventors: Magundappa Ravi L. Hadimani, Shalabh Gupta, Shane Harstad, Vitalij Pecharsky, David C. Jiles
  • ROOM TEMPERATURE FERROMAGNETIC GADOLINIUM SILICIDE NANOPARTICLES
    Publication number: 20170119909
    Abstract: A particle usable as T1 and T2 contrast agents is provided. The particle is a gadolinium silicide (Gd5Si4) particle that is ferromagnetic at temperatures up to 290 K and is less than 2 ?m in diameter. An MRI contrast agent that includes a plurality of gadolinium silicide (Gd5Si4) particles that are less than 1 ?m in diameter is also provided. A method for creating gadolinium silicide (Gd5Si4) particles is also provided. The method includes the steps of providing a Gd5Si4 bulk alloy; grinding the Gd5Si4 bulk alloy into a powder; and milling the Gd5Si4 bulk alloy powder for a time of approximately 20 minutes or less.
    Type: Application
    Filed: October 24, 2016
    Publication date: May 4, 2017
    Applicant: Iowa State University Research Foundation, Inc.
    Inventors: Magundappa Ravi L. Hadimani, Shalabh Gupta, Shane Harstad, Vitalij Pecharsky, David C. Jiles