Patents by Inventor Stewart E. Barnes

Stewart E. Barnes 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).

  • MAGNETIC-ELECTRIC ENERGY CONVERSION DEVICE, POWER SUPPLY DEVICE, AND MAGNETIC SENSOR
    Publication number: 20120092003
    Abstract: A magnetic-electric energy conversion device includes: a matrix (12) that includes ferromagnetic particles (10) with conductive properties; an injector (20) that injects carriers into the ferromagnetic particles; and a receptor (22) that accepts the carriers from the ferromagnetic particles. In the magnetic-electric energy conversion device, the carriers tunnel from the injector to the receptor via the ferromagnetic particles, when the magnetization state of the ferromagnetic particles is reversed by magnetic tunneling due to a magnetic field.
    Type: Application
    Filed: March 6, 2010
    Publication date: April 19, 2012
    Applicants: TOHOKU UNIVERSITY, THE UNIVERSITY OF TOKYO
    Inventors: Masaaki Tanaka, Pham Nam Hai, Shinobu Ohya, Stewart E. Barnes, Sadamichi Maekawa