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:
Mar. 08, 2016
Filed:
Nov. 08, 2011
Kazuyuki Ueda, Tokyo, JP;
Miki Tamura, Kawasaki, JP;
Yasue Sato, Machida, JP;
Takao Ogura, Yokohama, JP;
Ichiro Nomura, Atsugi, JP;
Shuji Aoki, Yokohama, JP;
Kazuyuki Ueda, Tokyo, JP;
Miki Tamura, Kawasaki, JP;
Yasue Sato, Machida, JP;
Takao Ogura, Yokohama, JP;
Ichiro Nomura, Atsugi, JP;
Shuji Aoki, Yokohama, JP;
CANON KABUSHIKI KAISHA, Tokyo, JP;
Abstract
A radiation generating apparatus has a radiation generating tube held in a holding containerand a cooling medium between the holding container and the radiation generating tube. The radiation generating tube includes an envelope with an aperture, an electron emitting source arranged in the envelope, a target arranged facing the source, for generating radiation responsive to irradiation with an electron beam emitted from the source, and a tubular shield for holding the target by an inner wall thereof and shielding part of the radiation emitted from the target. The shield is arranged to protrude outward of the envelope so that the target is positioned on an outer side of the aperture, and the cooling medium contacts at least a part of the shield.