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:
Apr. 13, 1982
Filed:
Oct. 28, 1980
Applicant:
Inventors:
Assignee:
Matsushita Electric Industrial Co., Ltd., Kadoma, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01B / ;
U.S. Cl.
CPC ...
252519 ; 252518 ; 252520 ; 338 / ;
Abstract
Oxide thermistor compositions which comprise 100 atomic % of at least four kinds of cations which are (1) Mn ion, (2) Ni ion, (3) at least one kind of ion selected from the group consisting of Cu, Fe, and Cr, and (4) one kind of ion selected from the group consisting of Cr, Zr, and Li. These compositions have lower resistivity with higher B-constant and exhibit a high stability of resistance.