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:
Nov. 06, 1990
Filed:
Aug. 23, 1988
Applicant:
Inventors:
Goh Miyajima, Katsuta, JP;
Kunishige Kuroda, Mito, JP;
Assignee:
Hitachi, Ltd., Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01F / ;
U.S. Cl.
CPC ...
335216 ; 335301 ; 324320 ;
Abstract
A superconducting magnetic assembly has a first superconducting coil for generating a magnetic field in an internal magnetic space in the first superconducting coil, a pair of second superconducting coils one provided at each end of the first superconducting coil for generating a cancelling magnetic field counteracting a leakage magnetic field leaking from the magnetic field in the internal space, and a magnetic shield of a superconducting material surrounding the first superconducting coil so as to be open to the internal space.