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AssigneeSharp Kabushiki Kaisha
InventorsKenji Ohta, Junji Hirokane, Akira Takahashi, Tetsuya Inui, Shohichi Katoh, Toshihisa Deguchi
Estimating the term…
A method for manufacturing an optical memory element including the steps of disposing a resist film on a substrate, placing a photo-mask carrying a guide groove pattern on the resist film so as to position the photo-mask over a predetermined position of the substrate, forming a guide groove pattern latent image on the resist film, developing the guide groove pattern latent image formed on the resist film, conducting an etching operation through the developed guide groove pattern as to form guide grooves in the substrate, removing the resist film from the substrate, and disposing a recording medium layer on the substrate having the guide grooves formed therein.
A method for manufacturing an optical memory element having a disc substrate formed of glass, circular guide tracks and circular address tracks for storing information, said method comprising the steps of:
A method for manufacturing an optical memory element having a disc substrate formed of glass, circular guide tracks and circular address tracks for storing information, said method comprising the steps of:
A method for manufacturing an optical memory element having a disc substrate formed of glass, circular guide tracks and circular address tracks for storing information, said method comprising the steps of:
Dependencies are inferred from the claim text.