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:
Oct. 24, 2000
Filed:
Feb. 29, 2000
Applicant:
Inventors:
Akinori Nakayama, Otsu, JP;
Satoshi Ueno, Shiga-ken, JP;
Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01B / ; C04B / ; H01C / ; H03B / ;
U.S. Cl.
CPC ...
501152 ; 2525211 ; 2525212 ; 338 / ; 331158 ;
Abstract
A semiconducting ceramic contains a lanthanum cobalt oxide as a major component represented by La.sub.x CoO.sub.3 wherein 0.600.ltoreq.x.ltoreq.0.999. The average crystal grain size of cobalt oxide present in the major component is not more than about 20 .mu.m. A change in resistivity between the semiconducting ceramic products can be suppressed.