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. 06, 1990
Filed:
Jan. 03, 1989
Applicant:
Inventor:
Motoji Haragashira, Tochigi, JP;
Assignee:
Kabushiki Kaisha Toshiba, Kawasaki, JP;
Primary Examiner:
Int. Cl.
CPC ...
G01R / ;
U.S. Cl.
CPC ...
324319 ; 324322 ;
Abstract
A shim coil for a nuclear magnetic resonance imaging apparatus capable of being independent of influences from time varying magnetic fields generated by gradient coil. The shim coil includes primary coil for producing an extra magnetic field in accordance with a direct current to be supplied, and compensatory coil for producing a compensatory magnetic field which cancels a magnetic field produced by the primary coil means in response to an induced current due to the time varying gradient magnetic fields.