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:
Sep. 15, 2009
Filed:
Dec. 18, 2007
Masatoshi Yamashita, Otawara, JP;
Hiromitsu Takamori, Otawara, JP;
Masatoshi Yamashita, Otawara, JP;
Hiromitsu Takamori, Otawara, JP;
Kabushiki Kaisha Toshiba, Minato-Ku, Tokyo, JP;
Toshiba Medical Systems Corporation, Otawara-Shi, Tochigi, JP;
Abstract
A gradient magnetic field coil unit includes a main coil layer that has a main coil for generating a gradient magnetic field and is formed in a substantially cylindrical shape. A shield coil layer that is attached to the outside of the main coil layer and has a shield coil for generating a magnetic field which shields a leakage magnetic field from the main coil. A cooling layer is attached between the main coil layer and the shield coil layer and has a plurality of flow paths for refrigerant. The flow paths are arranged in a substantially circumferential shape with the central axis of the main coil layer set to the center thereof, and a plurality of shim tray holding sections which hold a shim tray for a magnetic body.