Electric lamp or space discharge component or device manufacturi – Process – Electrode making
Patent
1989-12-18
1991-10-08
Ramsey, Kenneth J.
Electric lamp or space discharge component or device manufacturi
Process
Electrode making
427 77, H01J 904
Patent
active
050550780
ABSTRACT:
A manufacturing method of oxide cathode for electron tube in which adding method of scandium Sc and yttrium Y for extending duration of ternary carbonate solid solution is improved and excellent effects is obtained so that duration and electron emitting characteristics are improved. The invention is carried out by obtaining quinary (Ba, Sr, Ca, Sc, Y) carbonate and painting this on cap whereby manufacturing electron emitting substance layer. According to the invention, extension of duration and improvement of electron emitting characteristic can be obtained.
REFERENCES:
patent: 4675570 (1987-06-01), Green
patent: 4957463 (1990-09-01), Branovich et al.
Lee Anseob
Son Kyungcheon
Ramsey Kenneth J.
Samsung Electron Devices Co. Ltd.
LandOfFree
Manufacturing method of oxide cathode does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Manufacturing method of oxide cathode, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Manufacturing method of oxide cathode will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-254867