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:
Feb. 19, 1991
Filed:
Mar. 12, 1990
Fuji Photo Film Co., Ltd., Minami-Shigara, JP;
Abstract
A method of simultaneously applying a plurality of liquids to a carrier to form respective layers thereon without causing a chromatic nonuniformity or longitudinal streaking in the layers, and to thus stably manufacture a magnetic recording medium of good magnetic recording properties. Liquids containing organic solvents are simultaneously applied to a continuously moving nonmagnetic carrier by an application head of the extrusion type so as to form respective plural layers on the carrier to manufacture a magnetic recording medium. The difference between the viscosities of the liquids present in the slots of the application head and which are to be applied to the carrier to form at least mutually adjacent ones of the layers is set at 50 cp or less, or the difference between the viscosities of the liquids present in the pockets of the application head or is set at 500 cp or less.