Invention Grant
- Patent Title: Semiconductor ceramic composition and PTC thermistor
- Patent Title (中): 半导体陶瓷组合物和PTC热敏电阻
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Application No.: US14502123Application Date: 2014-09-30
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Publication No.: US09362031B2Publication Date: 2016-06-07
- Inventor: Yoshikazu Shimura , Kazuhiko Itoh
- Applicant: TDK CORPORATION
- Applicant Address: JP Tokyo
- Assignee: TDK CORPORATION
- Current Assignee: TDK CORPORATION
- Current Assignee Address: JP Tokyo
- Agency: Oliff PLC
- Priority: JP2013-208022 20131003; JP2014-170316 20140825
- Main IPC: H01C7/02
- IPC: H01C7/02 ; H01C7/00 ; H01C1/14
Abstract:
A semiconductor ceramic composition which includes a compound represented by the following formula (1) as a main component, (Ba1-x-y-wBixAyREw)m(Ti1-zTMz)O3 (1) (wherein, A is at least one element selected from Na or K, RE is at least one element selected from the group consisting of Y, La, Ce, Pr, Nd, Sm, Gd, Dy and Er, TM is at least one element selected from the group consisting of V, Nb and Ta, w, x, y, z and m satisfy the following relationships of (2)˜(5), 0.007≦x≦0.125 (2), x
Public/Granted literature
- US20150097650A1 SEMICONDUCTOR CERAMIC COMPOSITION AND PTC THERMISTOR Public/Granted day:2015-04-09
Information query
