Method for producing magnetic recording medium

Details Method for producing magnetic recording medium Method for producing magnetic recording medium

2006-04-19

2010-02-16

McDonald, Rodney G (Department: 1795)

Chemistry: electrical and wave energy

Processes and products

Coating, forming or etching by sputtering

C204S192320, C216S066000

Reexamination Certificate

active

07662264

ABSTRACT:
A method for producing a magnetic recording medium, includes: forming an SOG film on a surface of a magnetic layer; forming a concavo-convex structure in the SOG film comprising one selected from a group consisting of silica glass, alkylsiloxane polymer, methyl silsesquioxane polymer, hydrogen silsesquioxane polymer and hydro alkylsiloxane polymer; etching the SOG film to expose the surface of the magnetic layer; etching the exposed surface of the magnetic layer by ion milling; and forming a filling layer on the surface of the magnetic layer while leaving a portion of the magnetic layer having been subjected to the ion milling.

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Office Action in Japanese Patent Application No. 2005-121695, dated Oct. 6, 2009, and English-language translation.

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