Global Patent Index - EP 1089593 A2

EP 1089593 A2 2001-04-04 - Ceramic heater

Title (en)

Ceramic heater

Title (de)

Keramisches Heizelement

Title (fr)

Elément chauffant en céramique

Publication

EP 1089593 A2 (EN)

Application

EP 00308583 A

Priority

JP 28111599 A

Abstract (en)

A ceramic heater comprising a ceramic substrate having a heating face, and a resistance heat generator buried in the ceramic substrate, wherein the resistance heat generator comprises plural planar resistance heating elements arranged in a layered fashion as viewed in a thickness direction of the ceramic substrate, and each of said plural planar heating elements comprises a heat generation density-increased portion, and the heat generation density-increased portions of the respective plural planar heating elements are located in different portions, respectively. <IMAGE>

IPC 1-7 (main, further and additional classification)

H05B 3/14; H05B 3/28

IPC 8 full level (invention and additional information)

H05B 3/18 (2006.01); H05B 3/02 (2006.01); H05B 3/10 (2006.01); H05B 3/14 (2006.01); H05B 3/28 (2006.01)

CPC (invention and additional information)

H05B 3/143 (2013.01); H05B 3/283 (2013.01)

Designated contracting state (EPC)

DE FR GB

EPO simple patent family

EP 1089593 A2 20010404; EP 1089593 A3 20020828; JP 2001102157 A 20010413; KR 20010067260 A 20010712; TW 483285 B 20020411

INPADOC legal status


2003-12-03 [18D] DEEMED TO BE WITHDRAWN

- Ref Legal Event Code: 18D

- Effective date: 20030301

2003-05-21 [AKX] PAYMENT OF DESIGNATION FEES

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- Designated State(s): DE FR GB

2002-08-28 [AK] DESIGNATED CONTRACTING STATES:

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- Designated State(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE

2002-08-28 [AX] REQUEST FOR EXTENSION OF THE EUROPEAN PATENT TO

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2002-08-28 [RIC1] CLASSIFICATION (CORRECTION)

- Ref Legal Event Code: RIC1

- Free Format Text: 7H 05B 3/14 A, 7H 05B 3/28 B, 7H 01L 21/00 B, 7H 01L 21/68 B

2001-04-04 [AK] DESIGNATED CONTRACTING STATES:

- Ref Legal Event Code: AK

- Designated State(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE

2001-04-04 [AX] REQUEST FOR EXTENSION OF THE EUROPEAN PATENT TO

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- Free Format Text: AL;LT;LV;MK;RO;SI