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:
Mar. 24, 1998
Filed:
Aug. 21, 1996
Applicant:
Inventors:
Koji Yano, Zama, JP;
Hisaaki Kawade, Yokohama, JP;
Etsuro Kishi, Sagamihara, JP;
Kiyoshi Takimoto, Isehara, JP;
Assignee:
Canon Kabushiki Kaisha, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G11B / ;
U.S. Cl.
CPC ...
369 54 ; 369126 ; 250306 ;
Abstract
A physical action such as voltage or the like is locally applied to a recording medium in accordance with information to be recorded and a physical quantity such as a current, a voltage, and the like of a portion of the recording medium to which the physical action is applied, is measured. Recording of information is confirmed on the basis of the measured physical quantity.