Magnetic recording medium comprising a magnetic recording layer, an intermediate layer, a metallic thermal recording layer and a protective layer

摘要

This invention provides a magnetic recording medium wherein visible patterns can be written, in which a heat sensitive layer is formed on a magnetic recording layer and a metallic thin layer is formed on said heat sensitive layer. The metallic thin layer of said magnetic recording medium can by roughed by using a material containing minute particles to form a roughed heat sensitive layer on the magnetic recording layer and then depositing the metallic thin layer on said heat sensitive layer. In using said magnetic recording medium, information corresponding to at least a part of the information recorded in the magnetic recording layer can be written as visible patterns.