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, 2001
Filed:
Apr. 30, 1999
Masaaki Aoki, Takatsuki, JP;
Shigeo Hashimoto, Nishinomiya, JP;
Sumitomo Special Metals Co., Ltd., Osaka, JP;
Abstract
A magnetic field generator for an MRI includes a generator main body. The generator main body includes a pair of plate yokes opposed to each other with space in between, a permanent magnet disposed in each of the opposed surfaces of the plate yokes, and a column yoke for magnetically connecting the plate yokes. As a packing member, a shielding member, and if necessary, a stud pin as well as a fixing member are prepared. When packing, the shielding member is attached to the generator main body for shielding an opening. The stud pin may be used for providing a gap between the generator main body and the shielding member. For an open-type generator, the fixing member should preferably be attached to bridge the pair of plate yokes at a middle portion of the opening.