CA2207236A1 - Liquid ejection method, head and apparatus - Google Patents
Liquid ejection method, head and apparatusInfo
- Publication number
- CA2207236A1 CA2207236A1 CA002207236A CA2207236A CA2207236A1 CA 2207236 A1 CA2207236 A1 CA 2207236A1 CA 002207236 A CA002207236 A CA 002207236A CA 2207236 A CA2207236 A CA 2207236A CA 2207236 A1 CA2207236 A1 CA 2207236A1
- Authority
- CA
- Canada
- Prior art keywords
- liquid
- bubble
- pulse
- generating
- ejection outlet
- 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
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
- B41J2/04528—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
- B41J2/04563—Control methods or devices therefor, e.g. driver circuits, control circuits detecting head temperature; Ink 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
- B41J2/0458—Control methods or devices therefor, e.g. driver circuits, control circuits controlling heads based on heating elements forming bubbles
-
- 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
-
- 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
- B41J2/04598—Pre-pulse
-
- 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
- B41J2/135—Nozzles
- B41J2/14—Structure thereof only for on-demand ink jet heads
- B41J2/14016—Structure of bubble jet print heads
- B41J2/14024—Assembling head parts
-
- 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
- B41J2/135—Nozzles
- B41J2/14—Structure thereof only for on-demand ink jet heads
- B41J2/14016—Structure of bubble jet print heads
- B41J2/14032—Structure of the pressure chamber
- B41J2/14048—Movable member in the chamber
-
- 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
- B41J2/135—Nozzles
- B41J2/14—Structure thereof only for on-demand ink jet heads
- B41J2/14016—Structure of bubble jet print heads
- B41J2/14032—Structure of the pressure chamber
- B41J2/14056—Plural heating elements per ink chamber
-
- 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
- B41J2202/00—Embodiments of or processes related to ink-jet or thermal heads
- B41J2202/01—Embodiments of or processes related to ink-jet heads
- B41J2202/21—Line printing
Abstract
A liquid ejection method includes preparing a head comprising an ejection outlet for ejecting the liquid, a bubble generation region for generating the bubble in the liquid, a movable member disposed faced to the bubble generation region and displaceable between a first position and a second position further from the bubble generation region than the first position; displacing the movable member from the first position to the second position by pressure produced by the generation of the bubble in the bubble generating portion to permit expansion of the bubble more in a downstream side closer to the ejection outlet than in an upstream side; supplying, to a heat generating element for applying thermal energy to the bubble generating region, a driving pulse divided into a first pulse and an adjacent second pulse with interval time therebetween; pre-heating the liquid by the first pulse to an extent not enough to eject the liquid through the ejection outlet; generating a bubble by heating the liquid by the second pulse to eject the liquid through the ejection outlet;
controlling a degree of pre-heating of the liquid by changing at least one of a pulse width of the first pulse or the interval time.
controlling a degree of pre-heating of the liquid by changing at least one of a pulse width of the first pulse or the interval time.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CA002363545A CA2363545C (en) | 1996-06-07 | 1997-06-06 | Liquid ejection method, head and apparatus |
Applications Claiming Priority (6)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP146318/1996 | 1996-06-07 | ||
JP14631896A JPH09327920A (en) | 1996-06-07 | 1996-06-07 | Liquid-discharging method and device with liquid discharging head |
JP176939/1996 | 1996-07-05 | ||
JP17693996A JP3437379B2 (en) | 1996-07-05 | 1996-07-05 | Liquid discharge head, liquid discharge method and liquid discharge device |
JP18366596A JPH1024586A (en) | 1996-07-12 | 1996-07-12 | Liquid discharge device and liquid discharge |
JP183665/1996 | 1996-07-12 |
Related Child Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CA002363545A Division CA2363545C (en) | 1996-06-07 | 1997-06-06 | Liquid ejection method, head and apparatus |
Publications (2)
Publication Number | Publication Date |
---|---|
CA2207236A1 true CA2207236A1 (en) | 1997-12-07 |
CA2207236C CA2207236C (en) | 2002-02-05 |
Family
ID=27319153
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CA002207236A Expired - Fee Related CA2207236C (en) | 1996-06-07 | 1997-06-06 | Liquid ejection method, head and apparatus |
Country Status (7)
Country | Link |
---|---|
US (2) | US6252616B1 (en) |
EP (1) | EP0811490B1 (en) |
CN (1) | CN1092109C (en) |
AU (1) | AU2480497A (en) |
CA (1) | CA2207236C (en) |
DE (1) | DE69733980T2 (en) |
ES (1) | ES2243969T3 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN111841044A (en) * | 2019-02-28 | 2020-10-30 | 佳能株式会社 | Ultrafine bubble generation device and ultrafine bubble generation method |
Families Citing this family (25)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH1024584A (en) | 1996-07-12 | 1998-01-27 | Canon Inc | Liquid discharge head cartridge and liquid discharge device |
US6299293B1 (en) | 1998-12-03 | 2001-10-09 | Canon Kabushiki Kaisha | Substrate for liquid discharge head, liquid discharge head and liquid discharge apparatus |
US6474769B1 (en) * | 1999-06-04 | 2002-11-05 | Canon Kabushiki Kaisha | Liquid discharge head, liquid discharge apparatus and method for manufacturing liquid discharge head |
JP2000343702A (en) * | 1999-06-04 | 2000-12-12 | Canon Inc | Liquid ejecting head and liquid ejecting device using the liquid ejecting head |
JP3826749B2 (en) * | 2001-08-22 | 2006-09-27 | 株式会社日立製作所 | Power converter with shunt resistor |
US6854820B2 (en) | 2001-09-26 | 2005-02-15 | Canon Kabushiki Kaisha | Method for ejecting liquid, liquid ejection head and image-forming apparatus using the same |
EP1391303B1 (en) * | 2002-08-20 | 2009-02-18 | Sony Corporation | Liquid ejecting device and liquid ejecting method |
US20050045205A1 (en) * | 2003-08-29 | 2005-03-03 | Stach Steven R. | Apparatus and method for cleaning printed circuit boards |
EP1514685B1 (en) * | 2003-09-10 | 2007-01-24 | Fuji Photo Film Co., Ltd. | Liquid discharge apparatus and inkjet recording apparatus |
US7344218B2 (en) * | 2003-11-06 | 2008-03-18 | Canon Kabushiki Kaisha | Printhead driving method, printhead substrate, printhead, head cartridge and printing apparatus |
TWI267446B (en) * | 2003-11-06 | 2006-12-01 | Canon Kk | Printhead substrate, printhead using the substrate, head cartridge including the printhead, method of driving the printhead, and printing apparatus using the printhead |
JP4208888B2 (en) * | 2006-04-10 | 2009-01-14 | キヤノン株式会社 | Inkjet recording apparatus and inkjet recording method |
JP4890960B2 (en) * | 2006-06-19 | 2012-03-07 | キヤノン株式会社 | Recording device |
WO2008029650A1 (en) | 2006-09-08 | 2008-03-13 | Canon Kabushiki Kaisha | Liquid discharge head and method of manufacturing the same |
US20090040257A1 (en) * | 2007-08-06 | 2009-02-12 | Steven Wayne Bergstedt | Inkjet printheads with warming circuits |
WO2009145777A1 (en) * | 2008-05-29 | 2009-12-03 | Hewlett-Packard Development Company, L.P. | Printer including positionable printing units |
JP4987783B2 (en) * | 2008-03-31 | 2012-07-25 | 富士フイルム株式会社 | Inkjet recording apparatus and inkjet recording method |
US20100059084A1 (en) * | 2008-09-10 | 2010-03-11 | Austin American Technology Corporation | Cleaning and testing ionic cleanliness of electronic assemblies |
JP5419756B2 (en) * | 2010-03-09 | 2014-02-19 | 富士フイルム株式会社 | Temperature sensor calibration method, recording head manufacturing method, and ink jet recording apparatus |
JP2012218169A (en) * | 2011-04-04 | 2012-11-12 | Seiko Epson Corp | Liquid jet apparatus and method of controlling the same |
JP6494352B2 (en) | 2014-05-30 | 2019-04-03 | キヤノン株式会社 | Liquid discharge head |
JP6562694B2 (en) | 2014-05-30 | 2019-08-21 | キヤノン株式会社 | Liquid discharge head, liquid discharge apparatus, and method for electrically connecting liquid discharge head and liquid storage container |
JP6844207B2 (en) * | 2016-11-15 | 2021-03-17 | セイコーエプソン株式会社 | Liquid discharge head and liquid discharge device |
JP2018079671A (en) | 2016-11-18 | 2018-05-24 | キヤノン株式会社 | Liquid discharge head, liquid discharge device, and control method |
JP2021069993A (en) * | 2019-10-31 | 2021-05-06 | キヤノン株式会社 | Ultrafine bubble generation device and method for controlling the same |
Family Cites Families (32)
Publication number | Priority date | Publication date | Assignee | Title |
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CA1127227A (en) | 1977-10-03 | 1982-07-06 | Ichiro Endo | Liquid jet recording process and apparatus therefor |
JPS5581172A (en) | 1978-12-14 | 1980-06-18 | Canon Inc | Liquid injection type recording method and device |
JPS58114570A (en) * | 1981-12-26 | 1983-07-07 | Canon Inc | Picture output system |
JPS58128862A (en) * | 1982-01-26 | 1983-08-01 | Minolta Camera Co Ltd | Ink jet recording method |
US4480259A (en) | 1982-07-30 | 1984-10-30 | Hewlett-Packard Company | Ink jet printer with bubble driven flexible membrane |
JPS6169467A (en) | 1985-06-11 | 1986-04-10 | Seiko Epson Corp | Recording liquid ejection type recorder |
JPS63199972A (en) | 1987-02-13 | 1988-08-18 | Canon Inc | Manufacture of valve element |
JP2746633B2 (en) * | 1989-02-08 | 1998-05-06 | キヤノン株式会社 | Liquid jet recording device |
JPH02255349A (en) * | 1989-03-30 | 1990-10-16 | Nec Corp | Thermal head drying apparatus of thermal transfer printer |
EP0436047A1 (en) * | 1990-01-02 | 1991-07-10 | Siemens Aktiengesellschaft | Liquid jet printhead for ink jet printers |
US5166699A (en) | 1990-04-11 | 1992-11-24 | Canon Kabushiki Kaisha | Recording apparatus |
JP2962838B2 (en) | 1991-01-18 | 1999-10-12 | キヤノン株式会社 | Ink jet recording device |
US6116710A (en) * | 1991-01-18 | 2000-09-12 | Canon Kabushiki Kaisha | Ink jet recording method and apparatus using thermal energy |
JPH04247954A (en) * | 1991-01-18 | 1992-09-03 | Canon Inc | Cap for ink jet recording head, ink jet recording head and ink jet recorder |
DE69233179T2 (en) * | 1991-01-18 | 2004-06-17 | Canon K.K. | Ink jet recording method and thermal energy device |
DE69211872T2 (en) * | 1991-02-26 | 1996-12-12 | Rohm Co Ltd | Control device for thermal print head |
EP0505154B1 (en) * | 1991-03-20 | 2002-01-30 | Canon Kabushiki Kaisha | Thermal ink jet recording head temperature control |
JPH05261961A (en) * | 1991-03-25 | 1993-10-12 | Mitsubishi Electric Corp | Driving circuit for thermal head |
CA2074906C (en) * | 1991-08-01 | 2000-09-12 | Hiromitsu Hirabayashi | Ink jet recording apparatus having temperature control function |
US5278585A (en) * | 1992-05-28 | 1994-01-11 | Xerox Corporation | Ink jet printhead with ink flow directing valves |
KR0138362B1 (en) * | 1993-05-17 | 1998-05-15 | 김광호 | Thermal transfer printing apparatus and method |
EP0626265B1 (en) * | 1993-05-27 | 1999-12-22 | Canon Kabushiki Kaisha | Ink jet recording apparatus controlled by presumed temperature and method therefor |
JPH074109A (en) | 1993-06-19 | 1995-01-10 | Kazuo Ariyoshi | Plane parking device |
JP3423412B2 (en) * | 1993-06-23 | 2003-07-07 | キヤノン株式会社 | Ink jet recording method and recording apparatus |
JPH0796603A (en) * | 1993-07-31 | 1995-04-11 | Sony Corp | Ink jet recording device |
DE4342643C2 (en) * | 1993-09-13 | 1999-04-29 | Fraunhofer Ges Forschung | Low-temperature fixation with barrier discharge in inkjet printers |
US6036295A (en) * | 1993-11-26 | 2000-03-14 | Sony Corporation | Ink jet printer head and method for manufacturing the same |
US6116714A (en) * | 1994-03-04 | 2000-09-12 | Canon Kabushiki Kaisha | Printing head, printing method and apparatus using same, and apparatus and method for correcting said printing head |
JPH0839807A (en) * | 1994-07-29 | 1996-02-13 | Canon Inc | Ink jet printing method and apparatus |
JP3174225B2 (en) * | 1994-10-27 | 2001-06-11 | キヤノン株式会社 | Recording head and recording method and apparatus using the recording head |
JP3174226B2 (en) * | 1994-10-28 | 2001-06-11 | キヤノン株式会社 | Printhead correction method and apparatus, printhead corrected by the apparatus, and printing apparatus using the printhead |
US5821962A (en) * | 1995-06-02 | 1998-10-13 | Canon Kabushiki Kaisha | Liquid ejection apparatus and method |
-
1997
- 1997-06-06 CA CA002207236A patent/CA2207236C/en not_active Expired - Fee Related
- 1997-06-06 DE DE69733980T patent/DE69733980T2/en not_active Expired - Lifetime
- 1997-06-06 ES ES97303927T patent/ES2243969T3/en not_active Expired - Lifetime
- 1997-06-06 CN CN97114890A patent/CN1092109C/en not_active Expired - Fee Related
- 1997-06-06 EP EP97303927A patent/EP0811490B1/en not_active Expired - Lifetime
- 1997-06-09 US US08/872,627 patent/US6252616B1/en not_active Expired - Lifetime
- 1997-06-10 AU AU24804/97A patent/AU2480497A/en not_active Abandoned
-
2000
- 2000-12-08 US US09/731,833 patent/US6582065B1/en not_active Expired - Fee Related
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN111841044A (en) * | 2019-02-28 | 2020-10-30 | 佳能株式会社 | Ultrafine bubble generation device and ultrafine bubble generation method |
US11571671B2 (en) | 2019-02-28 | 2023-02-07 | Canon Kabushiki Kaisha | Ultrafine bubble generating apparatus and ultrafine bubble generating method |
Also Published As
Publication number | Publication date |
---|---|
EP0811490A2 (en) | 1997-12-10 |
CN1092109C (en) | 2002-10-09 |
US6252616B1 (en) | 2001-06-26 |
DE69733980T2 (en) | 2006-02-23 |
EP0811490A3 (en) | 1998-11-25 |
ES2243969T3 (en) | 2005-12-01 |
EP0811490B1 (en) | 2005-08-17 |
US6582065B1 (en) | 2003-06-24 |
AU2480497A (en) | 1997-12-11 |
CN1172012A (en) | 1998-02-04 |
DE69733980D1 (en) | 2005-09-22 |
CA2207236C (en) | 2002-02-05 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
EEER | Examination request | ||
MKLA | Lapsed |