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:
Aug. 20, 1996
Filed:
Sep. 06, 1994
Applicant:
Inventors:
Yasuo Nagashima, Tokyo, JP;
Ryuji Shirahata, Tokyo, JP;
Assignee:
Fuji Photo Film Co., Ltd., Kanagawa, JP;
Primary Examiner:
Int. Cl.
CPC ...
B05D / ;
U.S. Cl.
CPC ...
427130 ; 427131 ; 427289 ; 427365 ; 427377 ;
Abstract
A flexible magnetic disk has a first magnetic layer formed on a first surface of a circular polymeric substrate by coating and drying a magnetic coating material. After the first magnetic layer is formed and dried, a second magnetic layer is formed on a second surface of the polymeric substrate by coating and drying the magnetic coating material. The second magnetic layer formed on the second surface is then calendered to form a magnetic recording surface. The resulting magnetic disk provides for an improved surface vibration during high-speed rotation of the disk, and provides very good head touch.