Patent ID: 9165588
Filing Date: 2015-10-20
Classification: G11B

Abstract:
1. A magnetic recording medium manufacturing method comprising: forming a magnetic recording layer on a substrate; forming a mask layer on the magnetic recording layer; coating the mask layer with a fine particle coating solution containing fine particles coated with a protective layer containing a mixture of a first additive including a straight-chain structure for increasing wettability to the mask layer, and at least one type of a first functional group selected from the group consisting of an amino group, a carboxy group, a hydroxy group, and a sulfo group, and a second additive including at least one type of a second functional group selected from the group consisting of an amino group, a carboxy group, a hydroxy group, and a sulfo group, and a polymerizable functional group, each fine particle having, on at least a surface thereof, a material selected from the group consisting of aluminum, silicon, titanium, vanadium, chromium, manganese, iron, cobalt, nickel, zinc, yttrium, zirconium, tin, molybdenum, tantalum, tungsten, and oxides thereof, thereby forming a fine particle monolayer on the mask layer; applying heat or light energy to the fine particle layer to cause a reaction of the polymerizable functional group, thereby curing the protective layer and fixing the protective layer on the mask layer; transferring a periodic pattern formed by the fine particle layer to the mask layer; transferring the periodic pattern to the magnetic recording layer; and removing the mask layer from the magnetic recording layer.