ES2118741T3 - Metodo de activacion para un cabezal por chorros de tinta. - Google Patents
Metodo de activacion para un cabezal por chorros de tinta.Info
- Publication number
- ES2118741T3 ES2118741T3 ES91305439T ES91305439T ES2118741T3 ES 2118741 T3 ES2118741 T3 ES 2118741T3 ES 91305439 T ES91305439 T ES 91305439T ES 91305439 T ES91305439 T ES 91305439T ES 2118741 T3 ES2118741 T3 ES 2118741T3
- Authority
- ES
- Spain
- Prior art keywords
- ink
- substrate
- image
- emax
- casing
- 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.)
- Expired - Lifetime
Links
Classifications
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- 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
- B41J2/04508—Control methods or devices therefor, e.g. driver circuits, control circuits aiming at correcting other parameters
-
- 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
- B41J2/04528—Control methods or devices therefor, e.g. driver circuits, control circuits aiming at warming up the head
-
- 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
- B41J2/04533—Control methods or devices therefor, e.g. driver circuits, control circuits controlling a head having several actuators per chamber
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- 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
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- 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
- B41J2/04543—Block driving
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- 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
- B41J2/04563—Control methods or devices therefor, e.g. driver circuits, control circuits detecting head temperature; Ink temperature
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- 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
- B41J2/0458—Control methods or devices therefor, e.g. driver circuits, control circuits controlling heads based on heating elements forming bubbles
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- 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
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- 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
- B41J2/0459—Height of the driving signal being adjusted
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- 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
- B41J2/04596—Non-ejecting pulses
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- 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
- B41J2/07—Ink jet characterised by jet control
- B41J2/072—Ink jet characterised by jet control by thermal compensation
-
- 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
- B41J2/315—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed characterised by selective application of heat to a heat sensitive printing or impression-transfer material
- B41J2/32—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed characterised by selective application of heat to a heat sensitive printing or impression-transfer material using thermal heads
- B41J2/35—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed characterised by selective application of heat to a heat sensitive printing or impression-transfer material using thermal heads providing current or voltage to the thermal head
- B41J2/355—Control circuits for heating-element selection
- B41J2/3551—Block driving
-
- 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
- B41J2/315—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed characterised by selective application of heat to a heat sensitive printing or impression-transfer material
- B41J2/32—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed characterised by selective application of heat to a heat sensitive printing or impression-transfer material using thermal heads
- B41J2/35—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed characterised by selective application of heat to a heat sensitive printing or impression-transfer material using thermal heads providing current or voltage to the thermal head
- B41J2/355—Control circuits for heating-element selection
- B41J2/36—Print density control
- B41J2/365—Print density control by compensation for variation in temperature
Abstract
AQUI SE PROPORCIONA UN METODO CONDUCTOR PARA UN CABEZAL DE CHORRO DE TINTA, CONSTANDO DE UNA O MAS ABERTURAS DE DESCARGA PARA DESCARGAR LA TINTA, UN SUSTRATO INCORPORANDO UNO O MAS ELEMENTOS GENERADORES DE CALOR PARA GENERAR ENERGIA CALORIFICA, CORRESPONDIENDOSE CADA UNO DE LOS CUALES CON UNA ABERTURA DE DESCARGA, Y UNA PLACA SOPORTE O CARCASA EN DONDE SE MONTA EL MENCIONADO SOPORTE, CARACTERIZANDOSE EN QUE CUANDO SE REGISTRA UNA IMAGEN CON EL CABEZAL DE CHORRO DE TINTA EN EL CUAL LA ENERGIA CALORIFICA PARA DESCARGAR LA TINTA DE ACUERDO CON UNA SEÑAL GRAFICA ES GENERADA EN DICHOS ELEMENTOS GENERADORES DE CALOR, Y EL VALOR DE RESISTENCIA TERMAL PASANDO A TRAVES DE DICHA PLACA SOPORTE O CARCASA ES MENOR QUE EL QUE NO PASA A TRAVES DE DICHA PLACA SOPORTE O CARCASA EN MEDIO DE LA RESISTENCIA TERMAL ENTRE EL MENCIONADO SUSTRATO Y EL EXTERIOR, (E SUB MAX-E)/(V SUB MAX-V) ESTA CONTROLADO PARA SER SIEMPRE SUSTANCIALMENTE CONSTANTE SIEMPRE QUE E (MAS MENOS) E SUB MAX, ASEGURANDOSE QUE LA ENERGIA TERMAL GENERADA EN DICHO SUSTRATO ES E SUB MAX CUANDO DICHO CABEZAL DE DESCARGA DE TINTA DESCARGA LA TINTA CON UN VOLUMEN MAXIMO DE V SUB MAX, EL VOLUMEN DE DESCARGA DE TINTA DE ACUERDO CON DICHA SEÑAL IMAGINAL ES V, Y LA ENERGIA CALORIFICA GENERADA EN DICHO SUSTRATO EN ESTE MOMENTO ES E.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2157256A JP2891748B2 (ja) | 1990-06-15 | 1990-06-15 | インクジェットヘッドの駆動方法 |
Publications (1)
Publication Number | Publication Date |
---|---|
ES2118741T3 true ES2118741T3 (es) | 1998-10-01 |
Family
ID=15645677
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
ES91305439T Expired - Lifetime ES2118741T3 (es) | 1990-06-15 | 1991-06-14 | Metodo de activacion para un cabezal por chorros de tinta. |
Country Status (6)
Country | Link |
---|---|
US (1) | US5798772A (es) |
EP (2) | EP0822071B1 (es) |
JP (1) | JP2891748B2 (es) |
AT (2) | ATE317330T1 (es) |
DE (2) | DE69130037T2 (es) |
ES (1) | ES2118741T3 (es) |
Families Citing this family (24)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5237338A (en) * | 1991-08-05 | 1993-08-17 | Eastman Kodak Company | Is-enthalpic control of a thermal printing head |
JPH0631932A (ja) * | 1992-07-14 | 1994-02-08 | Fuji Xerox Co Ltd | インクジェット記録装置 |
JP3323664B2 (ja) | 1994-09-09 | 2002-09-09 | キヤノン株式会社 | プリント装置 |
US5969730A (en) * | 1994-11-07 | 1999-10-19 | Canon Aptex Inc. | Printer |
JP3258878B2 (ja) * | 1994-12-02 | 2002-02-18 | セイコーエプソン株式会社 | サーマルヘッドの駆動制御方法およびその装置 |
DE69622617T2 (de) * | 1995-04-03 | 2003-04-03 | Canon Kk | Temperatursteuerung für ein Druckgerät |
US6020905A (en) * | 1997-01-24 | 2000-02-01 | Lexmark International, Inc. | Ink jet printhead for drop size modulation |
US6102515A (en) * | 1997-03-27 | 2000-08-15 | Lexmark International, Inc. | Printhead driver for jetting heaters and substrate heater in an ink jet printer and method of controlling such heaters |
JP3372821B2 (ja) * | 1997-04-15 | 2003-02-04 | キヤノン株式会社 | インクジェット装置、該装置用インクジェットヘッドの温度推定方法および制御方法 |
EP0890439A3 (en) * | 1997-07-11 | 1999-08-25 | Lexmark International, Inc. | Ink jet printhead with an integral substrate heater driver |
US6612676B1 (en) | 1998-11-17 | 2003-09-02 | Pitney Bowes Inc. | Apparatus and method for real-time measurement of digital print quality |
US6435642B1 (en) | 1998-11-17 | 2002-08-20 | Pitney Bowes Inc. | Apparatus and method for real-time measurement of digital print quality |
US6350006B1 (en) | 1998-11-17 | 2002-02-26 | Pitney Bowes Inc. | Optical ink drop detection apparatus and method for monitoring operation of an ink jet printhead |
US6276770B1 (en) | 1998-11-17 | 2001-08-21 | Pitney Bowes Inc. | Mailing machine including ink jet printing having print head malfunction detection |
TW590896B (en) * | 2003-09-12 | 2004-06-11 | Ind Tech Res Inst | Inkjet control method of micro fluid |
US20070297349A1 (en) * | 2003-11-28 | 2007-12-27 | Ofir Arkin | Method and System for Collecting Information Relating to a Communication Network |
US8491076B2 (en) | 2004-03-15 | 2013-07-23 | Fujifilm Dimatix, Inc. | Fluid droplet ejection devices and methods |
US7281778B2 (en) | 2004-03-15 | 2007-10-16 | Fujifilm Dimatix, Inc. | High frequency droplet ejection device and method |
EP1836056B1 (en) | 2004-12-30 | 2018-11-07 | Fujifilm Dimatix, Inc. | Ink jet printing |
JP4341582B2 (ja) * | 2005-05-31 | 2009-10-07 | セイコーエプソン株式会社 | 液滴吐出装置 |
US7988247B2 (en) | 2007-01-11 | 2011-08-02 | Fujifilm Dimatix, Inc. | Ejection of drops having variable drop size from an ink jet printer |
JP5268285B2 (ja) * | 2007-06-01 | 2013-08-21 | キヤノン株式会社 | 記録装置 |
US8393702B2 (en) | 2009-12-10 | 2013-03-12 | Fujifilm Corporation | Separation of drive pulses for fluid ejector |
JP6083589B2 (ja) * | 2012-02-13 | 2017-02-22 | パナソニックIpマネジメント株式会社 | インクジェット装置および有機el表示パネルの製造方法 |
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US4330787A (en) * | 1978-10-31 | 1982-05-18 | Canon Kabushiki Kaisha | Liquid jet recording device |
US4345262A (en) * | 1979-02-19 | 1982-08-17 | Canon Kabushiki Kaisha | Ink jet recording method |
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-
1990
- 1990-06-15 JP JP2157256A patent/JP2891748B2/ja not_active Expired - Fee Related
-
1991
- 1991-06-14 EP EP97203078A patent/EP0822071B1/en not_active Expired - Lifetime
- 1991-06-14 DE DE69130037T patent/DE69130037T2/de not_active Expired - Lifetime
- 1991-06-14 EP EP91305439A patent/EP0461936B1/en not_active Expired - Lifetime
- 1991-06-14 DE DE69133507T patent/DE69133507T2/de not_active Expired - Lifetime
- 1991-06-14 AT AT97203078T patent/ATE317330T1/de not_active IP Right Cessation
- 1991-06-14 AT AT91305439T patent/ATE170131T1/de not_active IP Right Cessation
- 1991-06-14 ES ES91305439T patent/ES2118741T3/es not_active Expired - Lifetime
-
1997
- 1997-05-19 US US08/848,722 patent/US5798772A/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
JP2891748B2 (ja) | 1999-05-17 |
US5798772A (en) | 1998-08-25 |
DE69133507T2 (de) | 2006-08-10 |
EP0822071A3 (en) | 1998-12-09 |
ATE317330T1 (de) | 2006-02-15 |
JPH0447948A (ja) | 1992-02-18 |
EP0461936B1 (en) | 1998-08-26 |
EP0461936A2 (en) | 1991-12-18 |
EP0822071B1 (en) | 2006-02-08 |
DE69130037D1 (de) | 1998-10-01 |
DE69133507D1 (de) | 2006-04-20 |
EP0822071A2 (en) | 1998-02-04 |
EP0461936A3 (en) | 1992-07-29 |
DE69130037T2 (de) | 1999-02-18 |
ATE170131T1 (de) | 1998-09-15 |
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