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.

Date of Patent:
Nov. 03, 1987

Filed:

Jul. 28, 1986
Applicant:
Inventor:

Nobuyuki Yamamoto, Kanagawa, JP;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G11B / ;
U.S. Cl.
CPC ...
360135 ; 369280 ;
Abstract

A recording disc in which two recording sheets are bonded to bonding rings at the inner and outer periphery on both sides of a circular substrate with a recess between the recording portion of the recordings sheets and the substrate. The sheets are formed of a support material anisotropy and a recording material deposited on the support. The sheets are bonded to the bonding rings with their directions of anisotropy aligned.


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