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:
Apr. 16, 2002
Filed:
Apr. 27, 2000
Applicant:
Inventors:
Eisuke Tomita, Tokyo, JP;
Naoto Moriya, Tokyo, JP;
Assignee:
Seiko Instruments Inc., , JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01R 3/302 ; G01R 3/312 ;
U.S. Cl.
CPC ...
G01R 3/302 ; G01R 3/312 ;
Abstract
A magnetic force sensor detects a magnetic force of a magnetic sample having a given magnetization direction. The magnetic force sensor comprises a magnetic probe having a tip portion. The tip portion has an electrolytically plated film of hard-magnetic material effective to maintain the magnetization direction of the probe constant and parallel to the given magnetization direction of the sample.