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. 12, 2005
Filed:
Mar. 31, 2003
Madan Lal Singla, Chandigarh, IN;
Raj Baldev, Chandigarh, IN;
Harchekar Vijay Rajaram, Chandigarh, IN;
Ram Prakash Bajpal, Mysore, IN;
Madan Lal Singla, Chandigarh, IN;
Raj Baldev, Chandigarh, IN;
Harchekar Vijay Rajaram, Chandigarh, IN;
Ram Prakash Bajpal, Mysore, IN;
Council of Scientific and Industrial Research, New Delhi, IN;
Abstract
A ceramic mixture composition having negative temperature coefficient of resistance (NTC), the said composition comprising about 95 weight % of the tetragonal form of MnOand about 5 weight % of LaO, the said ceramic mixture is mixed with stearic acid and wax, compacted and provided with two electrodes disposed from each other to form a thermistor having resistance on the order of mega ohm at a temperature of 25° C. and the resistance of the thermistor drops by almost 40% with every 20° C. rise in temperature and stabilizes to 250±50 ohms at a temperature range of 330° C.±6%.