Title:
電灯用電極材料及びその製造方法
Document Type and Number:
Japanese Patent JP4721660
Kind Code:
B2
Abstract:
An electron emissive composition comprises a barium tantalate composition of the formula (Ba 1-x , Ca x , Sr p , D q ) 6 (Ta 1-y , W y , E t , F u , G v , Ca w ) 2 O (11 ± ´) where ´ is an amount of about 0 to about -3; and wherein D is either an alkali earth metal ion or an alkaline earth ion; E, F, and G, are alkaline earth ions and/or transition metal ion; x is an amount of up to about 0.7; y is an amount of up to about 1; p and q are amounts of up to about 0.3; and t is an amount of about 0.05 to about 0.10, u is an amount of up to about 0.5, v is an amount of up to about 0.5 and w is an amount of up to about 0.25. A method for manufacturing an electron emissive composition comprises blending a barium tantalate composition with a binder; and sintering the barium tantalate composition with the binder at a temperature of about 1000°C to about 1700°C.
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Inventors:
Shankar Madras Benugo Pearl
Aroku M Srivastaba
Holly Ann Comanzo
Vicas Midar
William Winder Bears
Gopi Chandran Ramachandran
Mkunda Srinivas Adyam
Aroku M Srivastaba
Holly Ann Comanzo
Vicas Midar
William Winder Bears
Gopi Chandran Ramachandran
Mkunda Srinivas Adyam
Application Number:
JP2004158516A
Publication Date:
July 13, 2011
Filing Date:
May 28, 2004
Export Citation:
Assignee:
GENERAL ELECTRIC COMPANY
International Classes:
C01G35/00; H01J61/06; C01G1/02; H01J1/00; H01J1/14; H01J1/146; H01J1/38; H01J1/48; H01J9/04; H01J61/04; H01J61/067; H01J61/073
Domestic Patent References:
| JP2001185075A | ||||
| JP2002110084A |
Attorney, Agent or Firm:
Arakawa Satoshi
Hirokazu Ogura
Nobukazu Ito
Toshihisa Kurokawa
Hirokazu Ogura
Nobukazu Ito
Toshihisa Kurokawa