THOMAS R PIZZUTI
Accountancy in Providence, RI
License number
Massachusetts 16091
Issued Date
Nov 6, 1993
Expiration Date
Jun 30, 2017
Type
Certified Public Accountant
Address
Address
Providence, RI 02906
Professional information
Incorporation Of Markings In Optical Media
US Patent:
2004012, Jun 24, 2004
Filed:
Nov 5, 2003
Appl. No.:
10/702530
Inventors:
Jeffrey Conroy - Rumford RI, US
Robert Afzal - Providence RI, US
Allison Berube - Somerset MA, US
Nabil Lawandy - N. Kingstown RI, US
Dana Lewis - North Kingstown RI, US
Thomas Pizzuti - Providence RI, US
Andrei Smuk - Providence RI, US
Robert Afzal - Providence RI, US
Allison Berube - Somerset MA, US
Nabil Lawandy - N. Kingstown RI, US
Dana Lewis - North Kingstown RI, US
Thomas Pizzuti - Providence RI, US
Andrei Smuk - Providence RI, US
Assignee:
Spectra Systems Corporation
International Classification:
G03C005/00, G06K007/10, G11B005/58
US Classification:
430/321000, 430/270100, 430/280100, 430/285100, 235/435000, 235/454000, 235/462010, 235/469000, 369/053210
Abstract:
Optical media having markings that are non-interfering, or substantially non-interfering with readout of data from the optical media are disclosed. The optical media make use of certain formulations of color forming coatings described herein. Protective coatings used to enhance the color forming coatings are also presented. Methods for incorporating the coatings into the optical media are included. In preferred embodiments, the marking is formed in a photosensitive coating that is applied to the optical media, and then cured with a first light. A second light, having a substantially separate band of wavelengths from the first light, is used to image a marking into the coating. The coating is robust to many external influences, such as ambient environmental conditions, and physical wear.