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:
Jun. 16, 1998
Filed:
Mar. 13, 1997
John Joseph Parette, Jessup, PA (US);
WEA Manufacturing Inc., Olyphant, PA (US);
Abstract
Generic and specific artwork is imparted to plastic discs such as CDs, CD ROMs, and DVDs (digital video discs) by exposing a layer of photoresist material on a forming member, which already contains generic artwork, to light from an original image of specific artwork. The material of the photoresist layer is exposed to different depths by different intensity light from different specific image regions. Where the image is dark, the exposure is to relatively shallow, random depths. Where the image is light, the full thickness of the photoresist layer is exposed. Development of the photoresist layer removes the exposed photoresist material. The surface features of the developed photoresist layer and any uncovered forming member surface are transferred to a second forming member used in forming a surface of the plastic disc, thereby visibly embossing both generic and specific artwork in the disc.