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:
Jul. 11, 2017
Filed:
Oct. 20, 2015
Hitachi, Ltd., Chiyoda-ku, Tokyo, JP;
Takeo Nemoto, Tokyo, JP;
Hitachi, Ltd., Tokyo, JP;
Abstract
Provided superconducting magnet allowing the temperature of the permanent current switch to be quickly lowered and the excitation time of the superconducting magnet to be shortened, an MRI apparatus and an NMR apparatus having the superconducting magnet. A superconducting magnet structure is disclosed in which a superconducting coilis connected to a second stageof a refrigerating unitthrough a low-temperature-side highly thermal conductorand a permanent current switchcovered by a highly thermal conductoris connected to a second stageof the refrigerating unitthrough a heat insulatorand a low-temperature-side highly thermal conductorGas is supplied from a gas bottledisposed outside a vacuum vesselto a condenserin a thermal shieldIn addition, a first pipethat supplies condensate liquid to a liquid storage chamberis provided. The liquid storage chamberis disposed at an upper portion of the permanent current switchA check valveis connected to the first pipe