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:
Jan. 06, 1998
Filed:
Apr. 12, 1996
Applicant:
Inventors:
Masakatsu Senda, Mito, JP;
Osamu Ishii, Mito, JP;
Yasuhiro Koshimoto, Higashiyamato, JP;
Tomoyuki Toshima, Tokorozawa, JP;
Assignee:
Nippon Telegraph and Telephone Corporation, Tokyo, JP;
Primary Examiner:
Int. Cl.
CPC ...
G01R / ; G11B / ; G11B / ;
U.S. Cl.
CPC ...
324244 ; 32420713 ; 324250 ; 324260 ; 360110 ;
Abstract
In a magnetic field sensing method in accordance with the invention of the present application, a magnetic sensor comprising a conductor and at least one magnetic material provided on any of the surfaces of this conductor, is employed. This magnetic sensor is disposed in the vicinity of an external magnetic field which is to be sensed, and by means of supplying a high frequency current to this conductor, the impedance of the conductor changes in accordance with the external magnetic field, and based on this, the external magnetic field is sensed.