Invention Grant
- Patent Title: Transmission type X-ray tube and manufacturing method thereof
- Patent Title (中): 透射型X射线管及其制造方法
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Application No.: US11547721Application Date: 2005-03-31
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Publication No.: US07623629B2Publication Date: 2009-11-24
- Inventor: Yuichi Ito , Toru Moriike , Seiji Hosoya , Yoshihiko Dan , Makoto Otsuka
- Applicant: Yuichi Ito , Toru Moriike , Seiji Hosoya , Yoshihiko Dan , Makoto Otsuka
- Applicant Address: JP Tokyo
- Assignee: Hitachi Medical Corporation
- Current Assignee: Hitachi Medical Corporation
- Current Assignee Address: JP Tokyo
- Agency: Antonelli, Terry, Stout & Kraus, LLP.
- Priority: JP2004-113170 20040407
- International Application: PCT/JP2005/006279 WO 20050331
- International Announcement: WO2005/098893 WO 20051020
- Main IPC: H01J35/02
- IPC: H01J35/02 ; H05G1/02
Abstract:
A transmission type X-ray tube includes an electrode lead (4) holding a cathode filament (7) and a stem unit (1) to which a sealing member (5), an exhaust tube (2), and the like are attached by brazing, and an irradiation widow frame (8) having an X-ray irradiation window (9) attached by brazing.The other end side (52) of the sealing member (5) is attached to an open end (83) of the irradiation window frame (8) by welding.Thus, it is possible to obtain a high-quality transmission type X-ray tube having a long service life at a low cost.
Public/Granted literature
- US20070211862A1 Transmission Type X-Ray Tube And Manufacturing Method Thereof Public/Granted day:2007-09-13
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