The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Oct. 30, 2001
Filed:
Nov. 10, 1997
Osamu Takamatsu, Atsugi, JP;
Katsunori Hatanaka, Yokohama, JP;
Kiyoshi Takimoto, Kawasaki, JP;
Haruki Kawada, Yokohama, JP;
Ken Eguchi, Yokohama, JP;
Yuko Morikawa, Kawasaki, JP;
Hiroshi Matsuda, Isehara, JP;
Toshihiko Takeda, Atsugi, JP;
Yoshihiro Yanagisawa, Atsugi, JP;
Hisaaki Kawade, Yokohama, JP;
Hideyuki Kawagishi, Ayase, JP;
Canon Kabushiki Kaisha, Tokyo, JP;
Abstract
An electrode substrate and a recording medium having a smooth surface with surface unevenness of 1 nm or less and a size of 1 &mgr;m□ 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.