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AssigneeCanon Kabushiki Kaisha
InventorsOsamu Takamatsu, Katsunori Hatanaka, Kiyoshi Takimoto, Haruki Kawada, Ken Eguchi, Yuko Morikawa, Hiroshi Matsuda, Toshihiko Takeda, Yoshihiro Yanagisawa, Hisaaki Kawade, Hideyuki Kawagishi
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An electrode substrate and a recording medium having a smooth surface with surface unevenness of 1 nm or less and a size of 1 μm□ or more are disclosed. An electrode substrate and a recording medium having a concave-shaped groove for tracking on the surface, which groove has a depth which can detect of the tunnel current from the bottom thereof by a probe electrode for scanning the surface are also disclosed. Information processing devices equipped with the smooth recording medium, an electroconductive probe arranged approximate to the recording medium and a pulse voltage application circuit for recording are also disclosed.
A process for preparing an electrode substrate, comprising the step of forming an electrode layer containing a conductive material on a smooth matrix with a surface unevenness of 1 nm or less and a size of 1 μm□ or more and the step of separating said electrode layer from the matrix.
Dependencies are inferred from the claim text.