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:
Sep. 24, 1996
Filed:
Jun. 27, 1994
Applicant:
Inventor:
Takayuki Nomoto, Tokorozawa, JP;
Assignee:
Pioneer Electronic Corporation, Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G11G / ;
U.S. Cl.
CPC ...
3692754 ; 3692751 ; 369110 ;
Abstract
An optical disk includes: information recording surface on which information is recorded by irradiating laser light, the information being readable based on the laser light reflected by the information recording surface; and surface transformed portion, arranged on the information recording surface, on which a plurality of transformed shapes each corresponding to the information are formed so that polarization conditions of the laser light reflected by the transformed shapes differ according to the information.
Quick Actions:
Nomoto, Takayuki. (1996). Polarization of a reflected light beam is changed according to the depth (U.S. Patent No. 5559787). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/5559787
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