Global Patent Index - EP 1026920 A2

EP 1026920 A2 2000-08-09 - MoSi2-based heating element and method for manufacturing the same

Title (en)

MoSi2-based heating element and method for manufacturing the same

Title (de)

Heizelement mit MoSi2-Basis und Herstellungsverfahren dafür

Title (fr)

Elément chauffant à base MoSi2 et sa méthode de conception

Publication

EP 1026920 A2 (EN)

Application

EP 00300768 A

Priority

JP 4278099 A

Abstract (en)

There is provided an MoSi2-based heating element having improved durability, and a method for inhibiting the formation of defects during the processes for manufacturing such an MoSi2-based heating element. The MoSi2-based heating element is a heating element containing 70% or more MoSi2 in which the difference between the average density of the entire heating element and the density of the central portion corresponding to one fifth of the diameter of the heating element (true density ratio) is 5% or less, preferably 3% or less. In the process of temporary sintering, sintering is performed in a temperature pattern of an adequately adjusted temperature raising rate. <IMAGE>

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

H05B 3/14

IPC 8 full level (invention and additional information)

C04B 35/58 (2006.01); B22F 3/14 (2006.01); C04B 35/64 (2006.01); H05B 3/14 (2006.01)

CPC (invention and additional information)

H05B 3/148 (2013.01); H05B 2203/018 (2013.01)

Designated contracting state (EPC)

SE

EPO simple patent family

EP 1026920 A2 20000809; EP 1026920 A3 20020410; EP 1026920 B1 20070822; CN 1162045 C 20040811; CN 1294833 A 20010509; JP 2000243538 A 20000908; JP 3070742 B1 20000731; WO 0051399 A1 20000831

INPADOC legal status


2017-04-28 [PGFP SE] POSTGRANT: ANNUAL FEES PAID TO NATIONAL OFFICE

- Ref Country Code: SE

- Payment date: 20170213

- Year of fee payment: 18

2008-07-30 [26N] NO OPPOSITION FILED

- Effective date: 20080526

2007-12-04 [REG SE TRGR] TRANSLATION OF GRANTED EP PATENT

2007-08-22 [AK] DESIGNATED CONTRACTING STATES:

- Kind Code of Ref Document: B1

- Designated State(s): SE

2006-09-20 [RAP1] TRANSFER OF RIGHTS OF AN EP PUBLISHED APPLICATION

- Owner name: NIPPON MINING & METALS CO., LTD.

2006-08-09 [RIN1] INVENTOR (CORRECTION)

- Inventor name: TAKAGAKI, DAISUKE,C/O ISOHARA PLANT OF NIKKO MAT.

2006-08-09 [RIN1] INVENTOR (CORRECTION)

- Inventor name: TAKAMURA, HIROSHI,C/O ISOHARA PLANT OF NIKKO MAT.

2005-05-18 [RAP1] TRANSFER OF RIGHTS OF AN EP PUBLISHED APPLICATION

- Owner name: NIKKO MATERIALS CO., LTD.

2004-03-17 [RAP1] TRANSFER OF RIGHTS OF AN EP PUBLISHED APPLICATION

- Owner name: NIKKO MATERIALS COMPANY, LIMITED

2003-02-06 [REG DE 8566] DESIGNATED COUNTRY DE NOT LONGER VALID

2003-01-02 [AKX] PAYMENT OF DESIGNATION FEES

- Free text: SE

2002-04-10 [AK] DESIGNATED CONTRACTING STATES:

- Kind Code of Ref Document: A3

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

2002-04-10 [AX] REQUEST FOR EXTENSION OF THE EUROPEAN PATENT TO

- Free text: AL;LT;LV;MK;RO;SI

2001-03-07 [17P] REQUEST FOR EXAMINATION FILED

- Effective date: 20010103

2000-08-09 [AK] DESIGNATED CONTRACTING STATES:

- Kind Code of Ref Document: A2

- Designated State(s): SE

2000-08-09 [AK] DESIGNATED CONTRACTING STATES:

- Kind Code of Ref Document: A2

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

2000-08-09 [AX] REQUEST FOR EXTENSION OF THE EUROPEAN PATENT TO

- Free text: AL;LT;LV;MK;RO;SI