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:
Jan. 12, 1999
Filed:
Apr. 01, 1997
Applicant:
Inventors:
Assignee:
Murata Manufacturing Co., Ltd., Kyoto, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C04B / ;
U.S. Cl.
CPC ...
501152 ; 501126 ; 252521 ;
Abstract
A semiconducting ceramic having negative resistance-temperature characteristics and a critical temperature consisting essentially of a rare-earth transition element oxide which is an oxide of a combination of samarium and nickel, wherein the samarium is partially replaced with Ln which is at least one other element selected from the group consisting of bismuth and rare-earth elements excluding lanthanum and cerium.