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.:

US 8835885 B1

PDF
Full Text
Expired
Date of Patent:
Sep. 16, 2014

Filed:

Dec. 19, 2013
Applicant:

Sumitomo Heavy Industries, Ltd., Tokyo, JP;

Inventor:

Tsuyoshi Ogasawara, Ehime, JP;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
A61N 5/00 (2006.01); G21K 5/04 (2006.01); A61N 5/10 (2006.01); G21K 5/02 (2006.01);
U.S. Cl.
CPC ...
G21K 5/02 (2013.01); G21K 5/04 (2013.01); A61N 5/1042 (2013.01); A61N 2005/1087 (2013.01); A61N 2005/1095 (2013.01); A61N 5/1077 (2013.01);
Abstract

A charged particle beam irradiation device includes an accelerator that accelerates charged particles and emits a charged particle beam; an irradiation unit that irradiates a body with the charged particle beam; a duct that transports the charged particle beam to the irradiation unit; a tubular body arranged on a propagation path of the charged particle beam within the irradiation unit, has inert gas filled thereinto, and has particle beam transmission films transmitting the charged particle beam therethrough at an inlet and an outlet thereof; a gas supply unit that supplies the inert gas into the tubular body; and a leak valve that leaks the inert gas inside the tubular body to the outside when the internal pressure of the tubular body is equal to or higher than a set pressure. The gas supply unit has a plurality of supply lines having different amounts of supply of inert gas.


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Ogasawara, Tsuyoshi. (2014). Charged particle beam irradiation device (U.S. Patent No. 8835885). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/8835885

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