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:
Oct. 04, 2016
Filed:
Feb. 01, 2012
Yosuke Otake, Tokyo, JP;
Yoshihisa Soutome, Tokyo, JP;
Ryota Sato, Tokyo, JP;
Yoshitaka Bito, Tokyo, JP;
Koji Hirata, Tokyo, JP;
Yosuke Otake, Tokyo, JP;
Yoshihisa Soutome, Tokyo, JP;
Ryota Sato, Tokyo, JP;
Yoshitaka Bito, Tokyo, JP;
Koji Hirata, Tokyo, JP;
HITACHI, LTD., Tokyo, JP;
Abstract
To provide a technique for sufficiently eliminating magnetic coupling between RF coils and improving image quality when a multi-element multi-tuned RF coil is used as a receive RF coil for an MRI device. In the invention, each of RF coils which constitute a multi-element multi-tuned RF coil which is used as a receive RF coil for an MRI device is provided with an inter-coil magnetic coupling prevention circuit which resonates at each frequency to which each RF coil is tuned and provides a high impedance. The inter-coil magnetic coupling prevention circuit adjusts an inductor and a capacitor so that both of a circuit on the side of a pre-amplifier viewed from both ends of a signal reception circuit and a circuit on the side of the signal reception circuit viewed from both ends of a serial resonance circuit connected to the pre-amplifier resonate at a plurality of frequencies to which the respective RF coils are tuned.