Patents by Inventor Irene Zuhi

Irene Zuhi 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).

  • Fluorescent composition for the manufacture of CD-ROM type optical memory disks
    Patent number: 6835431
    Abstract: A CD-ROM type optical disk, whether single-layer or multi-layer, is formed on a substrate having pits in its surface. The pits are filled with a fluorescent composition. Multiple disks such as that one can be glued on top of one another. Suitable fluorescent compositions include xanthene dyes of the eosine group, xanthene dyes of the rhodamine group, acridine dyes, oxazine dyes, azine dyes, indigoide dyes, perylene dyes, violanthrone dyes, cyanine dyes, phthalocynanine dyes, and porphyrins.
    Type: Grant
    Filed: September 18, 2001
    Date of Patent: December 28, 2004
    Assignee: D Data Inc.
    Inventors: Mark Alperovich, Eugene Levich, Irene Zuhi