Title:
TUNGSTEN ALLOY, AND TUNGSTEN ALLOY PART, DISCHARGE LAMP, TRANSMITTING TUBE AND MAGNETRON USING TUNGSTEN ALLOY
Document Type and Number:
WIPO Patent Application WO/2013/094695
Kind Code:
A1
Abstract:
The purpose of the present invention is to obtain a tungsten alloy having emission characteristics equal to or greater than a thorium-containing tungsten alloy, without using thorium, which is a radioactive substance; and to provide a discharge lamp, transmitting tube and magnetron that use said tungsten alloy. The present invention includes, in the tungsten alloy, an Hf component containing HfC in a range of 0.1 wt% to 3 wt% in terms of HfC.
Inventors:
YAMAMOTO SHINICHI (JP)
NAKANO KAYO (JP)
HORIE HIROMICHI (JP)
SANO TAKASHI (JP)
MINAMI YOSHIKO (JP)
YAMAGUCHI SATOSHI (JP)
NAKANO KAYO (JP)
HORIE HIROMICHI (JP)
SANO TAKASHI (JP)
MINAMI YOSHIKO (JP)
YAMAGUCHI SATOSHI (JP)
Application Number:
PCT/JP2012/083106
Publication Date:
June 27, 2013
Filing Date:
December 20, 2012
Export Citation:
Assignee:
TOSHIBA KK (JP)
TOSHIBA MATERIALS CO LTD (JP)
TOSHIBA MATERIALS CO LTD (JP)
International Classes:
C22C1/04; C22C27/04; B22F3/10; B22F3/24
Foreign References:
| JP2006102775A | 2006-04-20 | |||
| JP2008539332A | 2008-11-13 | |||
| JP2007113104A | 2007-05-10 | |||
| JP2009102670A | 2009-05-14 | |||
| JP2002226935A | 2002-08-14 | |||
| JP2011103240A | 2011-05-26 | |||
| JP4741190B2 | 2011-08-03 |
Other References:
See also references of EP 2796576A4
Attorney, Agent or Firm:
KURATA, Masatoshi et al. (JP)
Masatoshi Kurata (JP)
Masatoshi Kurata (JP)
Download PDF:
Claims: