Patents by Inventor Howard Duiane Lewis

Howard Duiane Lewis 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: 7742208
    Abstract: A rewriteable diffraction grating contains first nanoparticles and second nanoparticles. Each first nanoparticle is configured and arranged to generate one or more charge carriers in response to a write beam. Each second nanoparticle is configured and arranged to substantially alter its response to light from a read beam upon receiving one or more charge carriers from the first nanoparticles. The second nanoparticles are disposed in proximity to the first nanoparticles to permit charge carriers generated by the first nanoparticles to interact with the second nanoparticles.
    Type: Grant
    Filed: August 21, 2006
    Date of Patent: June 22, 2010
    Assignee: Brother International Corporation
    Inventor: Howard Duiane Lewis
  • Publication number: 20080043301
    Abstract: A rewriteable diffraction grating contains first nanoparticles and second nanoparticles. Each first nanoparticle is configured and arranged to generate one or more charge carriers in response to a write beam. Each second nanoparticle is configured and arranged to substantially alter its response to light from a read beam upon receiving one or more charge carriers from the first nanoparticles. The second nanoparticles are disposed in proximity to the first nanoparticles to permit charge carriers generated by the first nanoparticles to interact with the second nanoparticles.
    Type: Application
    Filed: August 21, 2006
    Publication date: February 21, 2008
    Applicant: Brother International Corporation
    Inventor: Howard Duiane Lewis