The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Sep. 16, 1980
Filed:
Dec. 05, 1978
Applicant:
Inventors:
Akira Misumi, Mobara, JP;
Masaharu Kumada, Mobara, JP;
Assignee:
Hitachi, Ltd., , JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C22C / ;
U.S. Cl.
CPC ...
75170 ; 148 32 ;
Abstract
A base metal plate material for a directly heated oxide cathode comprising nickel as a main component, 2.0 to 5.5 atomic percentage of rhenium, 7 atomic percentage or less of molybdenum, and at least one reducing agent can be used for producing quick operating type directly heated oxide cathodes showing no peeling of the oxide layer from the base metal plate and having excellently improved mechanical strength at high temperatures and specific electric resistance.