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:
Nov. 14, 2000
Filed:
Feb. 23, 2000
Kingo Ohmura, Kusatsu, JP;
Murata Manufacturing Co., Ltd., Nagaokakyo, JP;
Abstract
It is an object of the present invention to provide an improved negative temperature coefficient thermistor capable of increasing an adhesion strength between a negative temperature coefficient thermistor element consisting of LaCoO.sub.3 rare earth transition element oxide on one hand and electrodes on the other, thereby improving a reliability of the thermistor product. The negative temperature coefficient thermistor of the present invention is obtained by forming electrodes on the surface of a negative temperature coefficient thermistor element consisting of LaCoO.sub.3 rear earth transition element oxide. Such electrodes are formed by adding one or more kinds of oxide powders of Ni, Cr, Mn and Fe in a metal powder, with the content of the oxide powders in the metal powder being 1.0 wt % or less (however, not including 0 wt %).