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:
May. 03, 1994
Filed:
Oct. 23, 1992
Applicant:
Inventors:
Assignees:
Hitachi, Ltd., Tokyo, JP;
Hitachi Instrument Engineering Co., Ltd., Katsuta, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01V / ;
U.S. Cl.
CPC ...
324318 ; 324319 ;
Abstract
Apparatus for cancelling magnetic fields for cancelling a leakage magnetic field from a static magnetic field generation assembly are disposed outside the static magnetic field generation assembly. A magnetic shield made of a magnetic substance is disposed between the static magnetic field generating assembly and the cancelling magnetic field apparatus. The cancelling magnetic field generation apparatus is of a cryostatless type.