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:
May. 02, 1995
Filed:
Jul. 01, 1991
Haruyoshi Funae, Tokyo, JP;
Shigetoshi Hiraishi, Tokyo, JP;
Mitsubishi Paper Mills Limited, Tokyo, JP;
Abstract
The present invention provides a magnetic recording sheet which is excellent in its production operability, magnetic recording characteristics and visible information recording characteristics. The magnetic recording sheet comprises a substrate, a magnetic recording layer which comprises a binder having a gel content of 5-75% and ferromagnetic powders and is provided on one side of the substrate, and a visible information recording layer which comprises at least one binder selected from the group consisting of a synthetic binder and a natural binder is and provided on another side of the substrate. The present invention further provides a heat-sensitive magnetic recording sheet which is excellent in whiteness of the heat-sensitive recording layer and image stability and which comprises a substrate, a magnetic recording layer comprising a binder and ferromagnetic powders and provided on one side of the substrate, and a heat-sensitive recording layer comprising an aromatic isocyanate compound, an imino compound and a binder and containing a heat meltable substance having a melting point of 60.degree.-180.degree. C. and provided on another side of the substrate.