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:
Jun. 21, 2016
Filed:
Oct. 21, 2014
Applicant:
Murata Manufacturing Co., Ltd., Nagaokakyo-shi, Kyoto-Fu, JP;
Inventors:
Hiroshi Ikeda, Nagaokakyo, JP;
Tadamasa Miura, Nagaokakyo, JP;
Assignee:
MURATA MANUFACTURING CO., LTD., Nagaokakyo-Shi, Kyoto-Fu, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01C 7/00 (2006.01); H01C 1/14 (2006.01); H01C 7/04 (2006.01); H01C 17/06 (2006.01);
U.S. Cl.
CPC ...
H01C 1/1413 (2013.01); H01C 7/04 (2013.01); H01C 7/042 (2013.01); H01C 17/06 (2013.01); Y10T 29/49085 (2015.01);
Abstract
A NTC thermistor element that includes a substrate composed of a ceramic material containing Mn, Ni, Fe and Ti; and a pair of external electrodes on the substrate. When the molar amount of Mn in the substrate is a [mol %] and the molar amount of Ni in the substrate is b [mol %], a and b satisfy a+b=100, 44.90≦a≦65.27 and 34.73≦b≦55.10. When the molar amount of Fe is c [mol %] and the molar amount of Ti is d [mol %], c and d satisfy 24.22≦c≦39.57 and 5.04≦d≦10.18 based on a+b=100.