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Current content: 157 484 516 patent documents

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147 225 new documents added

921 612 documents amended

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EP 0694930 A1 19960131 - POSITIVE CHARACTERISTIC THERMISTOR

Title (en)

POSITIVE CHARACTERISTIC THERMISTOR

Title (de)

THERMISTOR MIT POSITIVER CHARAKTERISTIK

Title (fr)

THERMISTANCE A CARACTERISTIQUE POSITIVE

Publication

EP 0694930 A1 19960131 (EN)

Application

EP 94912679 A 19940414

Priority

JP 8754993 A 19930414
JP 8755093 A 19930414
JP 28135293 A 19931110
JP 9400622 W 19940414

Abstract (en)

A thermistor having a small specific resistance rho 25 at room temperature, a large alpha and stable characteristics. The semiconductor which constitutes the main body of the thermistor is a BaTiO3 perovskite-type compound. The quantity of Ti is smaller than that determined by the stoichiometric ratio, which has been preferably in excess conventionally. <MATH>

IPC 1-7

H01C 7/02

IPC 8 full level

H01C 7/02 (2006.01)

CPC (source: EP KR)

H01C 7/02 (2013.01 - KR); H01C 7/025 (2013.01 - EP)

Designated contracting state (EPC)

DE FR GB NL

DOCDB simple family (publication)

WO 9424680 A1 19941027; EP 0694930 A1 19960131; EP 0694930 A4 19970409; KR 960701453 A 19960224

DOCDB simple family (application)

JP 9400622 W 19940414; EP 94912679 A 19940414; KR 19950704028 A 19950921