Title:
ROTARY ANODE TYPE X RAY TUBE
Document Type and Number:
WIPO Patent Application WO/2008/069195
Kind Code:
A1
Abstract:
A rotary anode type X ray tube comprising a fixed body having a radial sliding bearing
surface (S1) on the side face and an internal channel for allowing cooling liquid
(20) to pass, a body of rotation (600) including a disklike large diameter portion
(610) having a recess (51a) to which one end portion of the fixed body is fitted
across a gap and constituting an anode target (50), and a small diameter portion
(620) having a radial sliding bearing surface (S2) surrounding the side face
of the fixed body and opposing the above-mentioned radial sliding bearing surface
across a gas in the inner surface and integrated with the large diameter portion
at one end portion, lubricant filling the gap, a cathode (80) arranged oppositely
to the anode target of the large diameter portion, and a vacuum enclosure (90)
storing the fixed body, the body of rotation, the lubricant and the cathode and
securing the fixed body at the other end portion thereof located on the side opposite
to the one end portion of the fixed body being fitted in the recess.
Inventors:
YONEZAWA TETSUYA (JP)
NAKAMUTA HIRONORI (JP)
TAKAHASHI RYOICHI (JP)
YOSHII YASUO (JP)
HATTORI HITOSHI (JP)
ITO YASUTAKA (JP)
NAKAMUTA HIRONORI (JP)
TAKAHASHI RYOICHI (JP)
YOSHII YASUO (JP)
HATTORI HITOSHI (JP)
ITO YASUTAKA (JP)
Application Number:
PCT/JP2007/073390
Publication Date:
June 12, 2008
Filing Date:
December 04, 2007
Export Citation:
Assignee:
TOSHIBA KK (JP)
TOSHIBA ELECTRON TUBES & DEVIC (JP)
YONEZAWA TETSUYA (JP)
NAKAMUTA HIRONORI (JP)
TAKAHASHI RYOICHI (JP)
YOSHII YASUO (JP)
HATTORI HITOSHI (JP)
ITO YASUTAKA (JP)
TOSHIBA ELECTRON TUBES & DEVIC (JP)
YONEZAWA TETSUYA (JP)
NAKAMUTA HIRONORI (JP)
TAKAHASHI RYOICHI (JP)
YOSHII YASUO (JP)
HATTORI HITOSHI (JP)
ITO YASUTAKA (JP)
International Classes:
H01J35/10
Domestic Patent References:
| WO2005038852A1 | 2005-04-28 |
Foreign References:
| JPH08507647A | 1996-08-13 | |||
| JP2006302648A | 2006-11-02 | |||
| JP2004349158A | 2004-12-09 | |||
| JP2003077412A | 2003-03-14 | |||
| US5541975A | 1996-07-30 | |||
| DE644719C | 1937-05-12 | |||
| JPS6313302A | 1988-01-20 | |||
| JPH05258691A | 1993-10-08 | |||
| JPH05144395A | 1993-06-11 |
Other References:
See also references of EP 2099055A4
Attorney, Agent or Firm:
SUZUYE, Takehiko et al. (1-12-9 Toranomon, Minato-k, Tokyo 01, JP)
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