HEATING DEVICE

WIPO Patent Application WO/2019/138830

A1

This heating device (100) includes: a heater (10) for heating an object (1) to be heated; a temperature detection unit (20) for detecting a temperature of the object (1) to be heated; and a temperature regulator (30) which, on the basis of a detection value of the temperature detection unit (20) and a target temperature, controls the heater (10) so as to make the temperature of the object (1) to be heated equal to the target temperature. The temperature detection unit (20) comprises a plurality of temperature sensors (21, 22). An identification unit (34) identifies, from temperature data detected by the temperature sensors (21, 22) and manipulation quantity data corresponding to electric power applied to the heater (10), a heat transfer function between the heater (10) and the temperature sensors (21, 22), and a heat transfer function between the respective temperature sensors (21, 22). A determination unit (36) detects a change from initial values of coefficients of the transfer functions, and, on the basis of that change, determines an abnormality in the heater (10) or the temperature sensors (21, 22).

JP2564585	INDUSTRIAL APPLICABILITY A device and a method for maintaining uniform optical window characteristics.
JP2022152932	FIXING DEVICE AND IMAGE FORMING APPARATUS

YAMADA TAKAAKI (JP)
TOGAWA HIROYUKI (JP)
TSUBATA HAJIME (JP)

PCT/JP2018/046936

July 18, 2019

December 20, 2018

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OMRON TATEISI ELECTRONICS CO (JP)

H05B3/00; G05D23/19

JPH1154244A	1999-02-26
JPH0346013A	1991-02-27
JPH09198148A	1997-07-31
JP2002124481A	2002-04-26
JPH09198147A	1997-07-31
JPS6127110A	1986-02-06
JPH0612133A	1994-01-21
JPH08166826A	1996-06-25
JP2011193148A	2011-09-29

See also references of EP 3740029A4

KAEDE PATENT ATTORNEYS' OFFICE (JP)

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