Patent ID: 8859033

Claim:
A production method of a magnetic recording medium, which has a magnetically-separated magnetic recording pattern, comprising: a step of forming a magnetic layer on a non-magnetic substrate; a step of forming a dissoluble layer on the magnetic layer, wherein the dissoluble layer comprises a combination of a CrTi layer on a molybdenum layer; a step of forming a mask layer on the dissoluble layer; a step of patterning the dissoluble layer and the mask layer to a shape corresponding to the magnetic recording pattern; a step of performing a partial modification or removal of the magnetic layer by use of the patterned mask layer; and a step of dissolving the patterned dissoluble layer with at least one chemical agent selected from the group consisting of a hydrogen peroxide solution, sulfuric acid, nitric acid, and phosphoric acid so as to remove the patterned dissoluble layer together with the patterned mask layer formed thereon from the top of the magnetic layer.