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:
Nov. 03, 1987
Filed:
Feb. 21, 1986
Applicant:
Inventor:
Nobuyuki Yamamoto, Kanagawa, JP;
Assignee:
Fuji Photo Film Co., Ltd., Kanagawa, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B32B / ;
U.S. Cl.
CPC ...
156292 ; 1562751 ; 1563084 ; 360133 ; 360135 ; 428694 ;
Abstract
A process for producing a magnetic disc comprises (1) attaching a flexible disc having a magnetic layer coated thereon to at least one side of a base plate wherein a gap is formed between the back surface of the flexible disc and the base plate and (2) heat-treating the magnetic disc after attaching the flexible disc to the base plate.