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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.:

US 5846626 B1

PDFFull Text
Date of Patent:
Dec. 08, 1998

Filed:

Feb. 21, 1996

Optical recording medium and method of producing same

Applicant:
Inventors:

Toshiyuki Kashiwagi, Tokyo, JP;

Motohiro Furuki, Tokyo, JP;

Shoji Fukuchi, Shizuoka, JP;

Yoshitake Yanagisawa, Shizuoka, JP;

Assignee:

Sony Corporation and Sony Disc Technology Inc., , JP;

Attorney:

Kananen; Ronald P.

Primary Examiner:

Patrick Ryan

Assistant Examiner:

Elizabeth Evans

Int. Cl.
CPC ...
B32B / ;
U.S. Cl.
CPC ...
428 641 ; 428 642 ; 428 644 ; 428 647 ; 4286 / ; 4286 / ; 4286 / ; 43027011 ; 4304951 ; 430945 ; 3692754 ; 369283 ;
Abstract

An optical recording medium capable of recording and/or reproducing an information by using a laser beam, comprising: a support layer having an information signal-recording portion on one side surface thereof on which said laser beam is incident, and a transparent layer disposed over the support layer and having a thickness smaller than that of the support layer. In accordance with the present invention, there are further provided production method for optical or magneto-optical discs whereby a high density reproduction can be achieved.

Find Patent Forward Citations

Kashiwagi, Toshiyuki. (1998). Optical recording medium and method of producing same (U.S. Patent No. 5846626). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/5846626

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