Patent ID: 7955786

Claim:
A method of producing a multilayer optical recording medium having a plurality of recording layers, comprising the steps of: a) forming a recording film on a substrate of an optical recording medium; b) applying a photocurable resin for forming an intermediate layer, onto the recording film; c) irradiating the photocurable resin for forming the intermediate layer with an ultraviolet ray through a light transmissive stamper to transfer an information pattern to the photocurable resin for forming the intermediate layer; and d) stacking a recording film on the photocurable resin for forming the intermediate layer, wherein the light transmissive stamper comprises a substrate having light transmissivity, an auxiliary layer having light transmissivity stacked on the substrate having light transmissivity, and an inorganic resist layer having light transmissivity stacked on the auxiliary layer, wherein peelability between the auxiliary layer and the photocurable resin is higher than peelability between the substrate having light transmissivity and the photocurable resin, and the inorganic resist layer has an uneven pattern formed therein corresponding to an information pattern, and the auxiliary layer having light transmissivity is exposed in a recess of the uneven pattern of the inorganic resist layer, wherein the inorganic resist layer contains, as a main component, any one of a tungsten oxide, a molybdenum oxide, and an oxide in which a part of tungsten of a tungsten oxide is substituted with molybdenum, each having an oxygen content less than the stoichiometric oxygen content of the oxide, and wherein the auxiliary layer comprises any one of a silicon nitride, a silicon oxide, a titanium oxide, and a mixture thereof.