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:
Apr. 15, 2014
Filed:
Sep. 19, 2007
Mitsushi Abe, Hitachinaka, JP;
Hiroyuki Watanabe, Hitachi, JP;
Hirotaka Takeshima, Ryugasaki, JP;
Hitachi, Ltd., Tokyo, JP;
Hitachi Medical Corporation, Tokyo, JP;
Abstract
An electromagnet device which generates magnetic field in the direction perpendicular to the inserting direction of an inspection subject is reduced in size and weight by removing unnecessary arrangement as much as possible. A magnetic resonance imaging device is also provided. The electromagnet device comprises a first coil () through which a first circular current (J) circulates forward, a second coil () through which a second circular current (J) circulates reversely, and a coil group () through which a plurality of circular currents (J-J) circulate alternately forward and reversely. The first coil (), the second coil () and the coil group () are arranged in this order to increase the angle of elevation θ (θ1<θ2<θ3), and a blank region (S) not including the second coil () and the coil group () exists in the angular region between the angles of elevation θ2 and θ3.