Patents by Inventor Juan Carlos Tonazzi Lopez

Juan Carlos Tonazzi Lopez 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: 20080204850
    Abstract: An optical media is provided with an associated persistent electrochromic material. The electrochromic material has at least two states. In a first state, the electrochromic material interferes with the ability of an interrogating laser beam to read data from the optical media, and in a second state, the electrochromic material is substantially transparent, enabling the laser beam to read the disc. Advantageously, the persistent electrochromic material holds a desired optical state without the application of external power. The persistent time period may extend for days, weeks, or years depending on particular constructions, and on application requirements. The optical media has an integrated circuit, which is used to cause the electrochromic material to transition from a first state to the second state. In one example, an integrated circuit acts as the powering circuit for the electrochromic material, as well as providing logic and processing functions.
    Type: Application
    Filed: July 28, 2006
    Publication date: August 28, 2008
    Inventors: Anoop Agrawal, John H. Rilum, John P. Cronin, Juan Carlos Tonazzi Lopez, Paul Atkinson, Rick Marquardt, Steve Parsons