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. 15, 1991
Filed:
May. 17, 1989
Applicant:
Inventors:
Tomohisa Maeda, Nishinasunomachi, JP;
Kazuhiko Tsujita, Nishinasunomachi, JP;
Assignee:
Kabushiki Kaisha Toshiba, Kawasaki, JP;
Primary Examiner:
Int. Cl.
CPC ...
G01R / ;
U.S. Cl.
CPC ...
324322 ; 324318 ;
Abstract
An RF coil system having (2n+1)/4 (n: zero or a positive integer) wavelength cables arranged in both ends of a PIN diode conneted in series with an RF coil, and a PIN diode is DC-biased via the aforementioned cable. A multi-band RF system constructed by providing a plurality of such wavelength cables corresponding to the frequencies of an RF pulse in obtaining an MR signal. Since the cable is, for example, of a coaxial type, the length of the cable is easy to adjust and it is thus possible to avoid coupling to the ambient environment.