The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jan. 08, 1985
Filed:
Dec. 17, 1982
Thomas Mayer, Santa Rosa, CA (US);
Michael D Temple, Santa Rosa, CA (US);
Norman L Boling, Santa Rosa, CA (US);
James D Rancourt, Santa Rosa, CA (US);
Burroughs Corporation, Detroit, MI (US);
Abstract
An optical data storage system is contemplated, one employing a data-modulated writing laser beam (FIG. 2: .circle.L ) with improved associated optical media (FIG. 2), these characterized by multiple layers (FIG. 2:c,d,e,f,g)--more particularly, a highly reflective aluminum layer (c), a relatively transparent polymer spacer layer (d) overlying the reflective layer, and an optical absorber (recording) layer (e) overlying the spacer layer, plus an overcoating structure, e.g., as a 'soft pad' layer (f; e.g., a fluoropolymer) on the absorber, with a 'Hard' layer (g; e.g., a radiation-cured acrylic) laid over the 'soft pad' as an outer protective overcoat. 'Spiral' coating techniques (FIG. 3) are specified for applying the 'Hard' layer.