Patent ID: 6391439
Filing Date: 2002-05-21
Classification: G09F,G11B,Y10T

Abstract:
A rewritable indication label for a recording medium to be adhered to said recording medium, said label comprising:a label base layer; a rewritable indication device layer provided on said base layer and on which visible information can be rewritably recorded and erased, said rewritable indication device layer comprising a magnetic recording layer including microcapsules containing a liquid and flake magnetic fine particles; a protection layer provided on said rewritable indication layer to protect said rewritable indication device layer; an adhesive layer provided on a side of said label base layer opposite said rewritable indication device layer; and a releasable sheet provided on a side of said adhesive layer opposite said label base layer, wherein (1) the flake magnetic fine particles are arranged in a vertical direction when a vertical magnetic field is applied to the magnetic recording layer, and the flake magnetic fine particles are arranged in a horizontal direction when a horizontal magnetic field is applied to the magnetic recording layer and (2) the flake magnetic fine particles have a coercive force of more than 500 oersted.