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:
Jan. 10, 2017
Filed:
Jan. 13, 2012
Masanao Terada, Naka, JP;
Mitsushi Abe, Hitahinaka, JP;
Yukinobu Imamura, Hitachi, JP;
Hiroyuki Takeuchi, Kashiwa, JP;
Akira Kurome, Kashiwa, JP;
Masanao Terada, Naka, JP;
Mitsushi Abe, Hitahinaka, JP;
Yukinobu Imamura, Hitachi, JP;
Hiroyuki Takeuchi, Kashiwa, JP;
Akira Kurome, Kashiwa, JP;
Hitachi, Ltd., Tokyo, JP;
Abstract
A gradient coil device includes a major axis gradient coil, having an ellipse in a cross section generating a gradient magnetic field inclined in a major axis direction of the ellipse at a magnetic field space; and a minor axis gradient coil, having an ellipse in a cross section generating a gradient magnetic field inclined in a minor axis direction of the ellipse at the magnetic field space. A length of the minor axis field coil in the center axis direction is shorter than a length of the major axis gradient coil in the center axis direction. A maximum value of a residual magnetic field generated by the minor axis gradient coil at a space outside the magnetic field space is equal to or smaller than a maximum value of a residual magnetic field generated by the major axis gradient coil at a space outside the magnetic field space.