Recording medium, recording method, and readout method
AssigneeCanon Kabushiki Kaisha
InventorsKeisuke Yamamoto, Fumio Kishi, Taiko Motoi, Takehiko Kawasaki, Norio Kaneko
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Abstract
A recording medium comprises an electroconductive oxide film held between a substrate and an insulating oxide film. A recording method locally applies a voltage onto the medium to form a portion different in electric resistance or oxygen content in the electroconductive oxide film. A record-readout method comprises the steps of applying a voltage to the electroconductive oxide film having information recorded thereon, and detecting the intensity of current flowing through a recorded portion to read out the recorded information.
Claims45
A recording method, comprising the step of applying locally a voltage onto a recording medium having an electroconductive oxide film held between a substrate and an insulating oxide film to form a portion different in electric resistance in the electroconductive oxide film.
A recording method, comprising the step of applying locally a voltage onto a recording medium having an electroconductive oxide film held between a substrate and an insulating oxide film to form a portion different in oxygen content in the electroconductive oxide film.
A record-readout method, comprising the steps of applying a voltage to an electroconductive oxide film held between a substrate and an insulating oxide film and having information recorded thereon, and detecting the intensity of current flowing through a recorded portion to read out the recorded information.
Dependencies are inferred from the claim text.