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. 01, 2009
Filed:
Aug. 14, 2003
Applicant:
Masahiro Ozaki, Otawara, JP;
Inventor:
Masahiro Ozaki, Otawara, JP;
Assignee:
Kabushiki Kaisha Toshiba, Tokyo, JP;
Primary Examiner:
Int. Cl.
CPC ...
G21G 1/12 (2006.01);
U.S. Cl.
CPC ...
Abstract
A concentrated irradiation type radiotherapy apparatus comprises a radiation source, a multi-channeled radiation detector, a rotating mechanism, an image reconstruction unit, a multi-leaf collimator disposed between the radiation source and the subject to trim the radioactive rays in arbitrary shapes and including a plurality of first leaves and a plurality of second leaves each disposed to be individually movable forwards/backwards and each having a strip shape and in which types of the first leaves are different from those of the second leaves.