[go: up one dir, main page]
More Web Proxy on the site http://driver.im/

EP0738602A3 - Ink jet print head - Google Patents

Ink jet print head Download PDF

Info

Publication number
EP0738602A3
EP0738602A3 EP96106318A EP96106318A EP0738602A3 EP 0738602 A3 EP0738602 A3 EP 0738602A3 EP 96106318 A EP96106318 A EP 96106318A EP 96106318 A EP96106318 A EP 96106318A EP 0738602 A3 EP0738602 A3 EP 0738602A3
Authority
EP
European Patent Office
Prior art keywords
ink jet
print head
jet print
head
ink
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP96106318A
Other languages
German (de)
French (fr)
Other versions
EP0738602B1 (en
EP0738602A2 (en
Inventor
Koji Morikoshi
Tsuyoshi Kitahara
Kaoru Momose
Noriaki Okazawa
Masahiko Yoshida
Kazunaga Suzuki
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Seiko Epson Corp
Original Assignee
Seiko Epson Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Seiko Epson Corp filed Critical Seiko Epson Corp
Publication of EP0738602A2 publication Critical patent/EP0738602A2/en
Publication of EP0738602A3 publication Critical patent/EP0738602A3/en
Application granted granted Critical
Publication of EP0738602B1 publication Critical patent/EP0738602B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
    • B41J2/00—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed
    • B41J2/005—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed characterised by bringing liquid or particles selectively into contact with a printing material
    • B41J2/01—Ink jet
    • B41J2/015—Ink jet characterised by the jet generation process
    • B41J2/04—Ink jet characterised by the jet generation process generating single droplets or particles on demand
    • B41J2/045—Ink jet characterised by the jet generation process generating single droplets or particles on demand by pressure, e.g. electromechanical transducers
    • B41J2/04501—Control methods or devices therefor, e.g. driver circuits, control circuits
    • B41J2/04541—Specific driving circuit
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
    • B41J2/00—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed
    • B41J2/005—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed characterised by bringing liquid or particles selectively into contact with a printing material
    • B41J2/01—Ink jet
    • B41J2/015—Ink jet characterised by the jet generation process
    • B41J2/04—Ink jet characterised by the jet generation process generating single droplets or particles on demand
    • B41J2/045—Ink jet characterised by the jet generation process generating single droplets or particles on demand by pressure, e.g. electromechanical transducers
    • B41J2/04501—Control methods or devices therefor, e.g. driver circuits, control circuits
    • B41J2/04553—Control methods or devices therefor, e.g. driver circuits, control circuits detecting ambient temperature
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
    • B41J2/00—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed
    • B41J2/005—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed characterised by bringing liquid or particles selectively into contact with a printing material
    • B41J2/01—Ink jet
    • B41J2/015—Ink jet characterised by the jet generation process
    • B41J2/04—Ink jet characterised by the jet generation process generating single droplets or particles on demand
    • B41J2/045—Ink jet characterised by the jet generation process generating single droplets or particles on demand by pressure, e.g. electromechanical transducers
    • B41J2/04501—Control methods or devices therefor, e.g. driver circuits, control circuits
    • B41J2/04581—Control methods or devices therefor, e.g. driver circuits, control circuits controlling heads based on piezoelectric elements
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
    • B41J2/00—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed
    • B41J2/005—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed characterised by bringing liquid or particles selectively into contact with a printing material
    • B41J2/01—Ink jet
    • B41J2/015—Ink jet characterised by the jet generation process
    • B41J2/04—Ink jet characterised by the jet generation process generating single droplets or particles on demand
    • B41J2/045—Ink jet characterised by the jet generation process generating single droplets or particles on demand by pressure, e.g. electromechanical transducers
    • B41J2/04501—Control methods or devices therefor, e.g. driver circuits, control circuits
    • B41J2/04588—Control methods or devices therefor, e.g. driver circuits, control circuits using a specific waveform
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
    • B41J2/00—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed
    • B41J2/005—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed characterised by bringing liquid or particles selectively into contact with a printing material
    • B41J2/01—Ink jet
    • B41J2/015—Ink jet characterised by the jet generation process
    • B41J2/04—Ink jet characterised by the jet generation process generating single droplets or particles on demand
    • B41J2/045—Ink jet characterised by the jet generation process generating single droplets or particles on demand by pressure, e.g. electromechanical transducers
    • B41J2/04501—Control methods or devices therefor, e.g. driver circuits, control circuits
    • B41J2/04591—Width of the driving signal being adjusted
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
    • B41J2/00—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed
    • B41J2/005—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed characterised by bringing liquid or particles selectively into contact with a printing material
    • B41J2/01—Ink jet
    • B41J2/015—Ink jet characterised by the jet generation process
    • B41J2/04—Ink jet characterised by the jet generation process generating single droplets or particles on demand
    • B41J2/045—Ink jet characterised by the jet generation process generating single droplets or particles on demand by pressure, e.g. electromechanical transducers
    • B41J2/04501—Control methods or devices therefor, e.g. driver circuits, control circuits
    • B41J2/04593—Dot-size modulation by changing the size of the drop
EP19960106318 1995-04-21 1996-04-22 Ink jet print head Expired - Lifetime EP0738602B1 (en)

Applications Claiming Priority (12)

Application Number Priority Date Filing Date Title
JP9723995 1995-04-21
JP97239/95 1995-04-21
JP97240/95 1995-04-21
JP9724095 1995-04-21
JP166971/95 1995-06-08
JP166970/95 1995-06-08
JP166969/95 1995-06-08
JP16697095 1995-06-08
JP16697195 1995-06-08
JP16696995 1995-06-08
JP11038496A JPH0952360A (en) 1995-04-21 1996-04-05 Ink jet recording apparatus
JP110384/96 1996-04-05

Publications (3)

Publication Number Publication Date
EP0738602A2 EP0738602A2 (en) 1996-10-23
EP0738602A3 true EP0738602A3 (en) 1997-06-11
EP0738602B1 EP0738602B1 (en) 1999-03-24

Family

ID=27552014

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19960106318 Expired - Lifetime EP0738602B1 (en) 1995-04-21 1996-04-22 Ink jet print head

Country Status (3)

Country Link
EP (1) EP0738602B1 (en)
JP (1) JPH0952360A (en)
DE (1) DE69601823T2 (en)

Families Citing this family (28)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE69735509T2 (en) * 1996-04-10 2006-08-31 Seiko Epson Corp. A method of operating an ink jet recording head
JP3552449B2 (en) * 1997-03-12 2004-08-11 セイコーエプソン株式会社 Method and apparatus for driving ink jet print head
US6120120A (en) * 1997-08-19 2000-09-19 Brother Kogyo Kabushiki Kaisha Ink jet apparatus and ink jet recorder
AU755025B2 (en) 1997-11-28 2002-11-28 Sony Corporation Apparatus and method for driving recording head for ink-jet printer
JP3185981B2 (en) * 1998-06-10 2001-07-11 セイコーエプソン株式会社 Ink jet recording apparatus and ink jet recording head driving method
JP3427923B2 (en) * 1999-01-28 2003-07-22 富士ゼロックス株式会社 Driving method of inkjet recording head and inkjet recording apparatus
JP2001150672A (en) 1999-01-29 2001-06-05 Seiko Epson Corp Ink-jet type recording apparatus, and, method for driving ink-jet type recording head
EP1023997B1 (en) * 1999-01-29 2007-03-21 Seiko Epson Corporation Actuator device and ink jet recording apparatus
JP2001191526A (en) * 1999-05-28 2001-07-17 Seiko Epson Corp Method for driving ink jet recording head and ink jet recorder
JP3446686B2 (en) * 1999-10-21 2003-09-16 セイコーエプソン株式会社 Ink jet recording device
US6478395B2 (en) 1999-12-01 2002-11-12 Seiko Epson Corporation Liquid jetting apparatus
JP3920596B2 (en) 2001-06-25 2007-05-30 東芝テック株式会社 Inkjet recording apparatus and inkjet recording method
JP4039038B2 (en) * 2001-11-07 2008-01-30 セイコーエプソン株式会社 Ink jet recording apparatus and recording head driving method
JP2003237060A (en) 2002-02-20 2003-08-26 Seiko Epson Corp Manufacturing machine for device, method of manufacturing, and method of driving manufacturing machine for device
US7073878B2 (en) 2002-09-30 2006-07-11 Seiko Epson Corporation Liquid ejecting apparatus and controlling unit of liquid ejecting apparatus
JP2004314612A (en) * 2003-03-28 2004-11-11 Kyocera Corp Driving method of piezoelectric ink-jet head
JP2005014431A (en) 2003-06-26 2005-01-20 Ricoh Co Ltd Image forming apparatus
JP4682524B2 (en) * 2004-03-15 2011-05-11 リコープリンティングシステムズ株式会社 Inkjet coating device
JP4700375B2 (en) * 2005-03-04 2011-06-15 東芝テック株式会社 Ink jet head driving method and ink jet recording apparatus
JP4853022B2 (en) * 2005-12-28 2012-01-11 セイコーエプソン株式会社 Liquid ejector
JP5861405B2 (en) * 2011-11-18 2016-02-16 株式会社ミマキエンジニアリング Inkjet recording device
JP2014128964A (en) 2012-11-29 2014-07-10 Ricoh Co Ltd Image formation apparatus, image formation method, and image formation program
JP6473868B2 (en) * 2014-06-27 2019-02-27 株式会社 東京ウエルズ Driving method and driving circuit of piezoelectric actuator
GB2530977A (en) * 2014-09-10 2016-04-13 Xaar Technology Ltd Printhead having driver circuit
JP2017001240A (en) * 2015-06-08 2017-01-05 東芝テック株式会社 Inkjet head and inkjet recording device
JP6644537B2 (en) 2015-12-11 2020-02-12 ローランドディー．ジー．株式会社 Liquid ejection device and ink jet recording device provided with the same
JP6644538B2 (en) 2015-12-11 2020-02-12 ローランドディー．ジー．株式会社 Liquid ejection device and ink jet recording device provided with the same
WO2021260751A1 (en) * 2020-06-22 2021-12-30 コニカミノルタ株式会社 Method for controlling driving of inkjet head, and inkjet recording apparatus

Citations (22)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59176055A (en) * 1983-03-25 1984-10-05 Konishiroku Photo Ind Co Ltd On-demand type ink jet recording apparatus
EP0208484A2 (en) * 1985-07-01 1987-01-14 Ing. C. Olivetti & C., S.p.A. Control circuit for an ink jet head
EP0271905A2 (en) * 1986-12-17 1988-06-22 Canon Kabushiki Kaisha Ink jet recording method and ink jet recording apparatus utilizing the same
EP0278589A1 (en) * 1987-01-10 1988-08-17 Am International Incorporated Droplet deposition apparatus
EP0354706A2 (en) * 1988-08-10 1990-02-14 Hewlett-Packard Company Ink flow control system and method for an ink jet printer
US4972211A (en) * 1986-06-20 1990-11-20 Canon Kabushiki Kaisha Ink jet recorder with attenuation of meniscus vibration in a ejection nozzle thereof
JPH03222750A (en) * 1990-01-30 1991-10-01 Ricoh Co Ltd Driving system for ink jet head
EP0467656A2 (en) * 1990-07-16 1992-01-22 Tektronix, Inc. Method of operating an on-demand ink jet print head
US5146236A (en) * 1989-12-14 1992-09-08 Ricoh Company, Ltd. Ink jet record apparatus
EP0531173A1 (en) * 1991-09-05 1993-03-10 Brother Kogyo Kabushiki Kaisha Method of driving an ink jet printer head and driving circuit
EP0541129A1 (en) * 1991-11-07 1993-05-12 Seiko Epson Corporation Method and apparatus for driving ink jet recording head
EP0548984A1 (en) * 1991-12-26 1993-06-30 Seiko Epson Corporation Ink jet type recording head driving circuit
EP0574016A2 (en) * 1992-06-12 1993-12-15 Seiko Epson Corporation Ink-jet type recording device
JPH05338150A (en) * 1992-06-12 1993-12-21 Seiko Epson Corp Driving method for ink jet head
EP0580154A2 (en) * 1992-07-21 1994-01-26 Seiko Epson Corporation Method for forming ink droplets in ink-jet type printer and ink-jet type recording device
EP0596530A2 (en) * 1992-11-05 1994-05-11 Seiko Epson Corporation Ink jet type recording apparatus
JPH06171080A (en) * 1992-12-08 1994-06-21 Seiko Epson Corp Ink jet recording device
EP0608835A2 (en) * 1993-01-25 1994-08-03 Seiko Epson Corporation Method and apparatus for driving ink jet recording head
EP0616891A1 (en) * 1993-03-01 1994-09-28 Seiko Epson Corporation Ink jet recording apparatus and method of controlling same
WO1994026522A1 (en) * 1993-05-10 1994-11-24 Compaq Computer Corporation Droplet volume modulation techniques for ink jet printheads
EP0648606A2 (en) * 1993-10-19 1995-04-19 Tektronix, Inc. Drop-on dermand ink-jet head apparatus and method
WO1995034427A1 (en) * 1994-06-15 1995-12-21 Citizen Watch Co., Ltd. Method of driving ink jet head

Patent Citations (22)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59176055A (en) * 1983-03-25 1984-10-05 Konishiroku Photo Ind Co Ltd On-demand type ink jet recording apparatus
EP0208484A2 (en) * 1985-07-01 1987-01-14 Ing. C. Olivetti & C., S.p.A. Control circuit for an ink jet head
US4972211A (en) * 1986-06-20 1990-11-20 Canon Kabushiki Kaisha Ink jet recorder with attenuation of meniscus vibration in a ejection nozzle thereof
EP0271905A2 (en) * 1986-12-17 1988-06-22 Canon Kabushiki Kaisha Ink jet recording method and ink jet recording apparatus utilizing the same
EP0278589A1 (en) * 1987-01-10 1988-08-17 Am International Incorporated Droplet deposition apparatus
EP0354706A2 (en) * 1988-08-10 1990-02-14 Hewlett-Packard Company Ink flow control system and method for an ink jet printer
US5146236A (en) * 1989-12-14 1992-09-08 Ricoh Company, Ltd. Ink jet record apparatus
JPH03222750A (en) * 1990-01-30 1991-10-01 Ricoh Co Ltd Driving system for ink jet head
EP0467656A2 (en) * 1990-07-16 1992-01-22 Tektronix, Inc. Method of operating an on-demand ink jet print head
EP0531173A1 (en) * 1991-09-05 1993-03-10 Brother Kogyo Kabushiki Kaisha Method of driving an ink jet printer head and driving circuit
EP0541129A1 (en) * 1991-11-07 1993-05-12 Seiko Epson Corporation Method and apparatus for driving ink jet recording head
EP0548984A1 (en) * 1991-12-26 1993-06-30 Seiko Epson Corporation Ink jet type recording head driving circuit
EP0574016A2 (en) * 1992-06-12 1993-12-15 Seiko Epson Corporation Ink-jet type recording device
JPH05338150A (en) * 1992-06-12 1993-12-21 Seiko Epson Corp Driving method for ink jet head
EP0580154A2 (en) * 1992-07-21 1994-01-26 Seiko Epson Corporation Method for forming ink droplets in ink-jet type printer and ink-jet type recording device
EP0596530A2 (en) * 1992-11-05 1994-05-11 Seiko Epson Corporation Ink jet type recording apparatus
JPH06171080A (en) * 1992-12-08 1994-06-21 Seiko Epson Corp Ink jet recording device
EP0608835A2 (en) * 1993-01-25 1994-08-03 Seiko Epson Corporation Method and apparatus for driving ink jet recording head
EP0616891A1 (en) * 1993-03-01 1994-09-28 Seiko Epson Corporation Ink jet recording apparatus and method of controlling same
WO1994026522A1 (en) * 1993-05-10 1994-11-24 Compaq Computer Corporation Droplet volume modulation techniques for ink jet printheads
EP0648606A2 (en) * 1993-10-19 1995-04-19 Tektronix, Inc. Drop-on dermand ink-jet head apparatus and method
WO1995034427A1 (en) * 1994-06-15 1995-12-21 Citizen Watch Co., Ltd. Method of driving ink jet head

Non-Patent Citations (4)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 009, no. 034 (M - 357) 14 February 1985 (1985-02-14) *
PATENT ABSTRACTS OF JAPAN vol. 015, no. 505 (M - 1194) 20 December 1991 (1991-12-20) *
PATENT ABSTRACTS OF JAPAN vol. 018, no. 173 (M - 1581) 24 March 1994 (1994-03-24) *
PATENT ABSTRACTS OF JAPAN vol. 018, no. 502 (M - 1676) 20 September 1994 (1994-09-20) *

Also Published As

Publication number Publication date
JPH0952360A (en) 1997-02-25
DE69601823D1 (en) 1999-04-29
EP0738602B1 (en) 1999-03-24
EP0738602A2 (en) 1996-10-23
DE69601823T2 (en) 1999-11-25

Similar Documents

Publication Publication Date Title
EP0755792A3 (en) Ink jet print head
HK1008845A1 (en) Ink jet print head
EP0738602A3 (en) Ink jet print head
SG48850A1 (en) Ink jet print head
EP0691205A3 (en) Modular ink jet print head
GB2287433B (en) Ink jet printer
GB9525970D0 (en) Continuous ink jet printer
GB9606010D0 (en) Ink jet printer
EP0703078A3 (en) Ink jet printhead
GB2297743B (en) Ink jet printer
EP0671270A3 (en) Ink jet print head.
EP0779155A3 (en) Ink jet print head
GB2300602B (en) Print head for an ink jet printer
EP0676286A3 (en) Ink jet printer head.
EP0778138A3 (en) Ink jet type head assembly
EP0734865A3 (en) Ink jet print head
GB9421393D0 (en) Ink jet printer
GB9626708D0 (en) Continuous ink jet print head control
GB2290262B (en) Ink jet printer
GB2298395B (en) Ink jet recording head
EP0719645A3 (en) Ink jet printer
GB9626707D0 (en) Continuous ink jet print head control
GB9600079D0 (en) Multi-nozzle continuous ink jet printer
EP0775580A3 (en) Print head for bubble jet printer
GB9626706D0 (en) Comtinuous ink jet print head control

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Kind code of ref document: A2

Designated state(s): DE FR GB IT

PUAL Search report despatched

Free format text: ORIGINAL CODE: 0009013

AK Designated contracting states

Kind code of ref document: A3

Designated state(s): DE FR GB IT

17P Request for examination filed

Effective date: 19970723

GRAG Despatch of communication of intention to grant

Free format text: ORIGINAL CODE: EPIDOS AGRA

17Q First examination report despatched

Effective date: 19980716

GRAG Despatch of communication of intention to grant

Free format text: ORIGINAL CODE: EPIDOS AGRA

GRAH Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOS IGRA

GRAH Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOS IGRA

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): DE FR GB IT

ITF It: translation for a ep patent filed
REF Corresponds to:

Ref document number: 69601823

Country of ref document: DE

Date of ref document: 19990429

ET Fr: translation filed
PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed
REG Reference to a national code

Ref country code: GB

Ref legal event code: IF02

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: IT

Payment date: 20070528

Year of fee payment: 12

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IT

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

Effective date: 20080422

REG Reference to a national code

Ref country code: FR

Ref legal event code: PLFP

Year of fee payment: 20

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: GB

Payment date: 20150422

Year of fee payment: 20

Ref country code: DE

Payment date: 20150414

Year of fee payment: 20

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: FR

Payment date: 20150408

Year of fee payment: 20

REG Reference to a national code

Ref country code: DE

Ref legal event code: R071

Ref document number: 69601823

Country of ref document: DE

REG Reference to a national code

Ref country code: GB

Ref legal event code: PE20

Expiry date: 20160421

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GB

Free format text: LAPSE BECAUSE OF EXPIRATION OF PROTECTION

Effective date: 20160421