Claims
- 1. Metal oxide group thermistor material which is the result of firing an admixture consisting essentially of a MnCO.sub.3 +b NiO+c CuO+d ZnO+e Co.sub.3 O.sub.4 +f Fe.sub.2 O.sub.3 +g TiO.sub.3 in the following ratio by weight:
- 27.86.ltoreq.a.ltoreq.53.68
- 6.17.ltoreq.b.ltoreq.13.56
- 0.ltoreq.c.ltoreq.50.76
- 0.ltoreq.d.ltoreq.48.25
- 0.ltoreq.e.ltoreq.30.61
- 0.ltoreq.f.ltoreq.51.14
- provided that a+b+c+d+e+f+g=100 and e+f+g.ltoreq.54.
- 2. Metal oxide group thermistor material according to claim 1 wherein:
- 21.86.ltoreq.a.ltoreq.49.52
- 6.17.ltoreq.b.ltoreq.10.97
- c=0
- 0.ltoreq.e.ltoreq.8.97
- 5.08.ltoreq.f.ltoreq.51.14
- 0.29.ltoreq.g.ltoreq.3.08.
- 3. Metal oxide group thermistor material of claim 1 wherein:
- 21.86.ltoreq.a.ltoreq.53.86
- 7.14b.ltoreq.13.56
- 0.44c.ltoreq.50.76
- 0.ltoreq.d.ltoreq.35.05
- 0.ltoreq.e.ltoreq.30.61
- 0.ltoreq.f.ltoreq.38.26
- 0.ltoreq.g.ltoreq.7.71.
Priority Claims (1)
Number |
Date |
Country |
Kind |
12585/1990 |
Aug 1990 |
KRX |
|
Parent Case Info
This is a continuation of application Ser. No. 07/645,126 filed on Jan. 24, 1991 now abandoned.
US Referenced Citations (3)
Number |
Name |
Date |
Kind |
3015633 |
Humbert et al. |
Jan 1962 |
|
4347166 |
Tosaki et al. |
Aug 1982 |
|
4891158 |
Hata |
Jan 1990 |
|
Continuations (1)
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Number |
Date |
Country |
Parent |
645126 |
Jan 1991 |
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