Back to results
US 4,391,874 AGranted
Magnetic recording medium
AssigneeFuji Photo Film Co., Ltd.
InventorsNobuyuki Yamamoto, Kyoichi Naruo, Tsutomu Okita
Life of this patent
Estimating the term…
Abstract
A magnetic recording medium having a thin magnetic film on a non-magnetic support base is disclosed. A layer of isocyanic acid ester is formed in connection with the medium, and may be formed on either the surface of the metal film or the surface of the base opposite the metal film or both. The resulting medium has excellent running properties, wear resistance and electro-to-magnetic conversion characteristics which are maintained after repeated use.
Claims12
A magnetic recording medium, comprising:
- a non-magnetic support base;
- a thin magnetic metal film formed on a surface of said non-magnetic support base;
- and
- a layer of an isocyanic acid ester having the formula RN.dbd.C.dbd.O, wherein R is an alkyl group.
1 more element
Dependencies are inferred from the claim text.