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. 30, 2024
Filed:
Apr. 11, 2019
Hitachi, Ltd., Tokyo, JP;
National University Corporation Hokkaido University, Hokkaido, JP;
Yusuke Fujii, Tokyo, JP;
Ryuya Ando, Tokyo, JP;
Manabu Aoki, Tokyo, JP;
Kikuo Umegaki, Sapporo, JP;
Shinichi Shimizu, Sapporo, JP;
Taeko Matsuura, Sapporo, JP;
Hiroki Shirato, Sapporo, JP;
HITACHI, LTD., Tokyo, JP;
NATIONAL UNIVERSITY CORPORATION HOKKAIDO UNIVERSITY, Sapporo, JP;
Abstract
A particle therapy system includes an acceleratorwhich generates a particle beam for extraction, an irradiation apparatuswhich irradiates the particle beam to an irradiation target, a gantrywhich rotates together with the irradiation apparatus, and an MRI apparatuswhich rotates together with the gantry. The MRI apparatusincludes a magnetic circuit composed of an iron coreand a plurality of coilsserving as a magnetic flux source. The iron coreincludes two oppositely disposed magnetic polesA andB, and a return yokefor connecting the magnetic polesA andB. The magnetic polesA,B have cavitiesA,B. The particle beam passing through the cavityA is irradiated to the irradiation target