Patent ID: 8139303

Claim:
A method for the production of a magnetic recording medium, comprising the steps of forming a magnetic layer on a nonmagnetic substrate, injecting atoms into portions of the magnetic layer to cause the portions to be demagnetized or allowed to acquire amorphousness, thereby forming a magnetically separated magnetic recording pattern, the step of injecting atoms comprising the steps of applying to a surface of the formed magnetic layer an SOG film as a resist, partly removing or thinning the resist, and irradiating the surface with atoms, thereby partly injecting atoms into the magnetic layer through the portions of the magnetic layer from which the resist is removed or in which the resist is thinned, wherein the atoms to be injected are atoms of one or more members selected from the group consisting of B, P, Si, F, H, C, In, Bi, Kr, Ar, Xe, W, As, Ge, Mo and Sn, wherein the step of removing or thinning the resist comprises the steps of using on a surface of the applied resist a stamp having a concavo-convex shape formed on its surface, thereby transferring the concavo-convex shape to the surface of the resist, wherein the SOG film immediately prior to the transfer of the concavo-convex shape contains an Si—O bond in a ratio in a range of 10% to 30% based on the total number of bonds in the SOG film, and the resist in the partly removed or thinned portions has a thickness in a range of 5 nm to 150 nm.