TIRE TEMPERATURE SENSOR, TIRE HEAT DETERIORATION DETECTION SENSOR, AND TIRE

WIPO Patent Application WO/2003/100370

A1

A tire temperature sensor and a tire heat deterioration detection sensor capable of detecting a variation in the magnetic characteristics of a magnetic circuit structure or a composite magnet by a magnetic sensor for detecting magnetic field leaking from the magnetic circuit structure installed at the specific portion of a tire or a magnetic field from the composite magnet and formed so that the magnetic characteristics of the magnetic circuit structure or the composite magnet can be varied according to the temperature of the tire at the specific portion or the degree of heat deterioration, wherein the temperature of the tire at the specific portion is directly measured or the degree of the heat deterioration is directly detected by using the tire temperature sensor or the tire heat deterioration detection sensor so that an abnormality which may lead to the failure of the tire can be find out earlier, whereby the tire temperature sensor or the tire heat deterioration detection sensor capable of preventing a battery from being exhausted earlier can be provided.

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JP2004189224	SYSTEM FOR PREDETERMINING THRESHOLD OF DEVICE SURVEYING RADIAL DEFORMATION STATE OF TIRE
JP2002082004	MEASUREMENT OF GRIP BETWEEN VEHICLE WHEEL AND ROAD

KIKUCHI MASAMI (JP)
SHIZUKU TAKAHISA (JP)
AOIKE YUKIO (JP)
AIZAWA SATOSHI (JP)

PCT/JP2003/005698

December 04, 2003

May 07, 2003

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BRIDGESTONE CORP (JP)
KIKUCHI MASAMI (JP)
SHIZUKU TAKAHISA (JP)
AOIKE YUKIO (JP)
AIZAWA SATOSHI (JP)

B60C19/00; B60C23/20; G01K7/38; G01K13/08; (IPC1-7): G01K7/38; G01K13/08; B60C19/00; B60C23/20

JPS6055769B2	1985-12-06
JPS6139970Y2	1986-11-15
JPS63247631A	1988-10-14

See also references of EP 1508790A4

Sugimura, Kosaku (2-4 Kasumigaseki 3-chom, Chiyoda-ku Tokyo, JP)

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