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:
Mar. 28, 1989
Filed:
May. 04, 1987
Dirk J Gravesteijn, Eindhoven, NL;
Carolus J Van Der Poel, Eindhoven, NL;
U.S. Philips Corporation, New York, NY (US);
Abstract
According to the method a rotating recording element 23 (FIG. 3) having a crystalline recording layer 28 of the composition Q.sub.x Sb.sub.y Te.sub.z, wherein Q=In, Ga; X=34-44 at. %; y=51-62 at. %; Z=2-9 at. %; is exposed to a pulsated laser light spot 29 (FIG. ) in which amorphous information bits are formed which are read by means of weak laser light 30 and which can be erased in real time during one revolution of the element 23 by means of a laser light erasing spot 33 (FIG. 4) and be returned to the crystalline state.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile