Patents by Inventor Christopher DeHainaut

Christopher DeHainaut 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).

  • Read/write optical memory
    Patent number: 5179533
    Abstract: An improved read/write optical disk is disclosed which is capable of being rewritten more than 10.sup.6 times. The disk utilizes a storage medium in which data is stored by causing a localized region of the storage medium to assume one of two states. The two states can be converted from one to another by the application of electric fields to the localized region of the storage medium. The localized region in question is selected by illuminating an area on an addressing layer directly above the region in question with light. The preferred embodiment utilizes a lead lanthanum zirconate titanate material for the storage medium.
    Type: Grant
    Filed: July 31, 1989
    Date of Patent: January 12, 1993
    Assignee: Radiant Technologies
    Inventors: Jeff A. Bullington, Sylvia D. Mancha, Christopher DeHainaut