Global Patent Index - EP 0704770 B1

EP 0704770 B1 2000-02-09 - Process for supporting the production of images on a printing plate and printing plate used in such process

Title (en)

Process for supporting the production of images on a printing plate and printing plate used in such process

Title (de)

Verfahren zum Unterstützen der Bebilderung einer Druckform und Druckform zur Verwendung in einem der Verfahren

Title (fr)

Procédé de support de fabrication d'images sur une plaque d'impression et plaque d'impression utilisée dans tel procédé

Publication

EP 0704770 B1 (DE)

Application

EP 95114848 A

Priority

DE 4434766 A

Abstract (en)

[origin: EP0704770A2] The printing plate has at least a first layer (1) of a ferroelectric material which acts as a photoconductor when illuminated by a light beam of given frequency before and/or during the polarisation, due to the photoferroelectric effect. Pref. the ferroelectric layer is illuminated with an electromagnetic beam with a frequency below the material specific boundary frequency, so that the temp. in the ferroelectric layer is raised, with transparent electrodes (2, 3) on opposite sides of the layer for simultaneous application of an electrical field with a field strength below the coercivity field strength of the layer in its non-illuminated condition.

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

G03G 13/056; G03G 15/056

IPC 8 full level (invention and additional information)

G03G 15/05 (2006.01); B41C 1/00 (2006.01); B41C 1/10 (2006.01); G03G 5/02 (2006.01); G03G 5/022 (2006.01); G03G 13/056 (2006.01); G03G 13/26 (2006.01)

CPC (invention and additional information)

B41C 1/1058 (2013.01); G03G 5/02 (2013.01); G03G 5/022 (2013.01); G03G 13/056 (2013.01); G03G 13/26 (2013.01)

Designated contracting state (EPC)

CH DE FR GB IT LI NL

EPO simple patent family

EP 0704770 A2 19960403; EP 0704770 A3 19970507; EP 0704770 B1 20000209; CA 2157810 A1 19960330; CA 2157810 C 20000905; DE 4434766 A1 19960404; JP 2914899 B2 19990705; JP H08123164 A 19960517; US 5900341 A 19990504

INPADOC legal status


2006-07-14 [REG FR ST] NOTIFICATION OF LAPSE

- Effective date: 20060531

2006-05-31 [PG25 FR] LAPSED IN A CONTRACTING STATE ANNOUNCED VIA POSTGRANT INFORM. FROM NAT. OFFICE TO EPO

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- Free text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

- Effective date: 20060531

2006-05-24 [GBPC] GB: EUROPEAN PATENT CEASED THROUGH NON-PAYMENT OF RENEWAL FEE

- Effective date: 20050921

2006-05-15 [REG CH PL] PATENT CEASED

2006-04-01 [PG25 DE] LAPSED IN A CONTRACTING STATE ANNOUNCED VIA POSTGRANT INFORM. FROM NAT. OFFICE TO EPO

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- Free text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

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2005-09-30 [PG25 CH] LAPSED IN A CONTRACTING STATE ANNOUNCED VIA POSTGRANT INFORM. FROM NAT. OFFICE TO EPO

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- Free text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

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2005-09-30 [PG25 LI] LAPSED IN A CONTRACTING STATE ANNOUNCED VIA POSTGRANT INFORM. FROM NAT. OFFICE TO EPO

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2005-09-21 [PG25 GB] LAPSED IN A CONTRACTING STATE ANNOUNCED VIA POSTGRANT INFORM. FROM NAT. OFFICE TO EPO

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2005-09-21 [PG25 IT] LAPSED IN A CONTRACTING STATE ANNOUNCED VIA POSTGRANT INFORM. FROM NAT. OFFICE TO EPO

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- Effective date: 20050921

2005-06-01 [NLV4] NL: LAPSED OR ANULLED DUE TO NON-PAYMENT OF THE ANNUAL FEE

- Effective date: 20050401

2005-04-01 [PG25 NL] LAPSED IN A CONTRACTING STATE ANNOUNCED VIA POSTGRANT INFORM. FROM NAT. OFFICE TO EPO

- Ref Country Code: NL

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- Effective date: 20050401

2004-09-13 [PGFP GB] POSTGRANT: ANNUAL FEES PAID TO NATIONAL OFFICE

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2004-09-09 [PGFP CH] POSTGRANT: ANNUAL FEES PAID TO NATIONAL OFFICE

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2004-09-07 [PGFP DE] POSTGRANT: ANNUAL FEES PAID TO NATIONAL OFFICE

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2003-08-28 [PGFP NL] POSTGRANT: ANNUAL FEES PAID TO NATIONAL OFFICE

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- Year of fee payment: 9

2002-01-01 [REG GB IF02] EUROPEAN PATENT IN FORCE AS OF 2002-01-01

2001-01-24 [26N] NO OPPOSITION FILED

2000-06-09 [ET] FR: TRANSLATION FILED

2000-06-07 [GBT] GB: TRANSLATION OF EP PATENT FILED (GB SECTION 77(6)(A)/1977)

- Effective date: 20000511

2000-03-16 [REF] CORRESPONDS TO:

- Document: DE 59507775 20000316

2000-02-15 [REG CH EP] ENTRY IN THE NATIONAL PHASE

2000-02-15 [REG CH NV] NEW AGENT

- Representative's name: E. BLUM & CO. PATENTANWAELTE

2000-02-09 [AK] DESIGNATED CONTRACTING STATES:

- Kind Code of Ref Document: B1

- Designated State(s): CH DE FR GB IT LI NL

1999-12-15 [ITF] IT: TRANSLATION FOR A EP PATENT FILED

- Owner name: BARZANO' E ZANARDO ROMA S.P.A.

1999-06-02 [17Q] FIRST EXAMINATION REPORT

- Effective date: 19990419

1997-11-05 [17P] REQUEST FOR EXAMINATION FILED

- Effective date: 19970910

1997-05-07 [AK] DESIGNATED CONTRACTING STATES:

- Kind Code of Ref Document: A3

- Designated State(s): CH DE FR GB IT LI NL

1996-04-03 [AK] DESIGNATED CONTRACTING STATES:

- Kind Code of Ref Document: A2

- Designated State(s): CH DE FR GB IT LI NL