JP6240170B2 - エジェクタ装置,並びにその方法,ドライバ,及び回路 - Google Patents
エジェクタ装置,並びにその方法,ドライバ,及び回路 Download PDFInfo
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Classifications
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- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B17/00—Apparatus for spraying or atomising liquids or other fluent materials, not covered by the preceding groups
- B05B17/04—Apparatus for spraying or atomising liquids or other fluent materials, not covered by the preceding groups operating with special methods
- B05B17/06—Apparatus for spraying or atomising liquids or other fluent materials, not covered by the preceding groups operating with special methods using ultrasonic or other kinds of vibrations
- B05B17/0607—Apparatus for spraying or atomising liquids or other fluent materials, not covered by the preceding groups operating with special methods using ultrasonic or other kinds of vibrations generated by electrical means, e.g. piezoelectric transducers
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F9/00—Methods or devices for treatment of the eyes; Devices for putting-in contact lenses; Devices to correct squinting; Apparatus to guide the blind; Protective devices for the eyes, carried on the body or in the hand
- A61F9/0008—Introducing ophthalmic products into the ocular cavity or retaining products therein
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M11/00—Sprayers or atomisers specially adapted for therapeutic purposes
- A61M11/005—Sprayers or atomisers specially adapted for therapeutic purposes using ultrasonics
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- B—PERFORMING OPERATIONS; TRANSPORTING
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- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B17/00—Apparatus for spraying or atomising liquids or other fluent materials, not covered by the preceding groups
- B05B17/04—Apparatus for spraying or atomising liquids or other fluent materials, not covered by the preceding groups operating with special methods
- B05B17/06—Apparatus for spraying or atomising liquids or other fluent materials, not covered by the preceding groups operating with special methods using ultrasonic or other kinds of vibrations
- B05B17/0607—Apparatus for spraying or atomising liquids or other fluent materials, not covered by the preceding groups operating with special methods using ultrasonic or other kinds of vibrations generated by electrical means, e.g. piezoelectric transducers
- B05B17/0638—Apparatus for spraying or atomising liquids or other fluent materials, not covered by the preceding groups operating with special methods using ultrasonic or other kinds of vibrations generated by electrical means, e.g. piezoelectric transducers spray being produced by discharging the liquid or other fluent material through a plate comprising a plurality of orifices
- B05B17/0646—Vibrating plates, i.e. plates being directly subjected to the vibrations, e.g. having a piezoelectric transducer attached thereto
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B17/00—Apparatus for spraying or atomising liquids or other fluent materials, not covered by the preceding groups
- B05B17/04—Apparatus for spraying or atomising liquids or other fluent materials, not covered by the preceding groups operating with special methods
- B05B17/06—Apparatus for spraying or atomising liquids or other fluent materials, not covered by the preceding groups operating with special methods using ultrasonic or other kinds of vibrations
- B05B17/0607—Apparatus for spraying or atomising liquids or other fluent materials, not covered by the preceding groups operating with special methods using ultrasonic or other kinds of vibrations generated by electrical means, e.g. piezoelectric transducers
- B05B17/0653—Details
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- B—PERFORMING OPERATIONS; TRANSPORTING
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- 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
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- 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
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- 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
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- 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
- B41J2/04551—Control methods or devices therefor, e.g. driver circuits, control circuits using several operating modes
-
- 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
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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
- B41J2/135—Nozzles
- B41J2/14—Structure thereof only for on-demand ink jet heads
- B41J2/14201—Structure of print heads with piezoelectric elements
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01H—MEASUREMENT OF MECHANICAL VIBRATIONS OR ULTRASONIC, SONIC OR INFRASONIC WAVES
- G01H13/00—Measuring resonant frequency
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- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10N—ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10N30/00—Piezoelectric or electrostrictive devices
- H10N30/20—Piezoelectric or electrostrictive devices with electrical input and mechanical output, e.g. functioning as actuators or vibrators
- H10N30/204—Piezoelectric or electrostrictive devices with electrical input and mechanical output, e.g. functioning as actuators or vibrators using bending displacement, e.g. unimorph, bimorph or multimorph cantilever or membrane benders
- H10N30/2047—Membrane type
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- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10N—ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10N30/00—Piezoelectric or electrostrictive devices
- H10N30/80—Constructional details
- H10N30/802—Circuitry or processes for operating piezoelectric or electrostrictive devices not otherwise provided for, e.g. drive circuits
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- 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
- B41J2202/15—Moving nozzle or nozzle plate
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Ophthalmology & Optometry (AREA)
- Vascular Medicine (AREA)
- Particle Formation And Scattering Control In Inkjet Printers (AREA)
- Reciprocating Pumps (AREA)
- Apparatuses For Generation Of Mechanical Vibrations (AREA)
- Special Spraying Apparatus (AREA)
- Coating Apparatus (AREA)
- Micromachines (AREA)
- Information Retrieval, Db Structures And Fs Structures Therefor (AREA)
Description
この例では,液滴発生器132に設けられた開口部126のパターンがエジェクタプレート104の中央領域に形成された対称な(例えば,直径21mmのステンレス鋼)エジェクタプレート104が利用された。(例えば,圧電型の)アクチュエータからの逆EMF信号又は帰還電圧信号を測定し,それぞれの駆動波形の後に制振信号を提供する駆動回路を制御するために,共振又は帰還回路560を有する駆動回路520が,駆動信号を発生するために使用された。別個の駆動波形を発生し,信号を減衰させるためのほかの技法もまた,考慮された。
この例では,共振モードで駆動されるアクチュエータが,駆動信号が停止した後,緩和時間によって規定される所定の期間,振動し続ける。アクチュエータ及びエジェクタ系の運動は減少するが,膜又は液滴発生器は,流体を装荷した機構の追加エネルギによって,振動し続ける。流体が緩和する前に,圧電対が駆動されると,流体ビースが発生し,サイクル間の不感時間が不十分であると,ビーズ発生及び流体振動が反復されるサイクルにわたって増加する。
この例では,キャンセル波形は,このような残留運動及びリングダウン時間を短縮するために使用された。
この例は,上記の例1に記載のエジェクタ機構を利用しており,駆動電圧が単純な正弦波又は矩形波であるとき,ビーズ発生が観察された。この特定の例では,駆動信号波形は,50msの長さであった。
この例はまた,上記の実施例1によるエジェクタ機構を利用したが,ビーズ発生は,上述の限られたサイクル(反復パルス),緩和時間,及び能動制振技術のうち1又は複数を利用して抑制された。
一実施形態においては,エジェクタ装置は,流体リザーバ(本明細書においては,カートリッジとも呼ぶ)及びベースシステムを含むエジェクタアセンブリを備える二つの部分からなる(two part)装置として実現される。ベースシステムは,相補的にカートリッジを受け入れ,かみ合うように構成されている。利用者がベースシステムにカートリッジを挿入すると,電気的接点が形成され,カートリッジがアクティブになる。一実施形態においては,カートリッジが無効にされたとき,カートリッジのEEPROM(登録商標)カウントダウンを開始するために読み取られる。
Claims (35)
- 液滴発生器プレートであって,該プレートを通る複数の開口部を有する液滴発生器プレートに結合された圧電アクチュエータを含む液滴エジェクタアセンブリであって,前記滴発生プレートは前記開口部が流体で満たされたとき,流体で満たされた液滴発生器プレートを規定する,液滴エジェクタアセンブリと,
前記圧電アクチュエータに電気的に結合され,前記圧電アクチュエータを駆動するための駆動信号を発生するように構成された駆動信号発生器と,
前記圧電アクチュエータ及び前記駆動信号発生器に電気的に結合され,前記液滴発生器アセンブリの共振周波数で前記圧電アクチュエータを駆動するための前記駆動信号を制御するように構成されたコントローラと,
を備え,
少なくとも一つのバッテリから電力が前記圧電アクチュエータに供給され,前記マイクロコントローラは,前記バッテリの電圧を監視し,前記バッテリの緩やかな消耗を補償するように構成されるシステム。 - 前記コントローラは,前記圧電アクチュエータからの減衰信号に基づいて前記共振周波数を決定するように構成される,請求項1に記載のシステム。
- 前記コントローラは,コンデンサ及び前記減衰信号の時間エネルギ積(TEP)を決定するためのADCを含む,請求項1に記載のシステム。
- 前記コントローラは,前記駆動信号発生器が種々の周波数にわたって一組の周波数信号を発生するように制御し,前記減衰信号の効果を監視することによって,前記圧電エジェクタの共振周波数を決定するように構成された共振測定及び制御回路を備える,請求項2に記載のシステム。
- 各周波数信号が複数回反復され,一貫性を保証するために,その都度,得られたTEP信号が監視される,請求項4に記載のシステム。
- 前記駆動信号は,少なくとも二つの異なる周波数信号を有し,前記共振周波数は該少なくとも二つの異なる周波数信号間の干渉によって規定される,請求項1に記載のシステム。
- 前記異なる周波数の信号はそれぞれ,前記液滴エジェクタアセンブリに対して非共振である,請求項6に記載のシステム。
- 液滴エジェクタアセンブリを動作させる方法であって,
流体装荷液滴発生器プレートに結合された圧電アクチュエータを含む液滴エジェクタアセンブリに駆動信号を印加するステップと,
前記圧電アクチュエータからの帰還信号の累積された強度又はピーク値に基づいて,前記エジェクタアセンブリの共振周波数を決定するステップと,
前記エジェクタアセンブリの共振周波数で前記圧電アクチュエータを駆動するために前記駆動信号を制御するステップと,
少なくとも一つのバッテリから電力が前記圧電アクチュエータに供給されるステップと,
前記バッテリの電圧を監視し,前記バッテリの緩やかな消耗を補償するように前記電圧を制御するステップと,
を有する方法。 - 前記共振周波数を決定するステップは,試験信号に続いて,又は駆動信号に続いて行われる,請求項8に記載の方法。
- 駆動信号は,前記液滴発生器プレートに装荷された前記流体の特性,前記液滴発生器プレートの流体装荷量,温度,湿度,圧力の1又は複数の変化による,前記エジェクタアセンブリの共振周波数の変化を考慮して調整される,請求項9に記載の方法。
- 前記共振周波数の変化は,温度,湿度,圧力,及び駆動電圧で誘起された共振シフトの1又は複数に少なくとも部分的に基づく,請求項10に記載の方法。
- 前記帰還信号は,前記圧電アクチュエータへの駆動信号又は試験信号に続く減衰信号によって規定される,請求項8に記載の方法。
- 前記共振周波数を決定するステップは,エネルギの強度を決定するために前記減衰信号を積分するステップを有する,請求項12に記載の方法。
- 共振周波数を決定するステップは,異なる試験周波数信号に続いて行われ,前記方法は,種々の周波数にわたって前記圧電アクチュエータに異なる周波数の試験信号を印加するステップを更に有する,請求項8に記載の方法。
- 共振周波数を決定するステップは,前記圧電アクチュエータからの時間エネルギ積(TEP)信号に基づいており,前記TEP信号を積分することによって得られる,請求項14に記載の方法。
- 前記圧電アクチュエータに前記駆動信号を印加するステップは,別個には前記流体装荷液滴発生器プレートに対して非共振であるが,一緒には前記流体装荷液滴発生器プレートに対して共振する,第1及び第2の異なる駆動周波数信号を少なくとも発生するステップを有する,請求項8に記載の方法。
- 流体のアンプル又はリザーバと,
液滴発生器プレート,及び該液滴発生器プレートに結合された圧電アクチュエータを備えたエジェクタアセンブリであって,前記液滴発生器プレートは,前記流体が装荷されるように前記リザーバと流体連通状態にある,エジェクタアセンブリと,
前記圧電アクチュエータに結合され,異なる第1及び第2の駆動周波数で少なくとも第1及び第2の駆動信号を発生するように構成されたドライバであって,前記駆動信号は,一つ又は複数の共振周波数でエジェクタアセンブリを振動させる前記圧電アクチュエータに結合される,ドライバと,
前記圧電アクチュエータ及び前記ドライバに電気的に結合され,前記駆動信号を制御するように構成されたコントローラと,
を備え,
少なくとも一つのバッテリから電力が前記圧電アクチュエータに供給され,前記マイクロコントローラは,前記バッテリの電圧を監視し,前記バッテリの緩やかな消耗を補償するように構成される液滴噴出装置。 - 前記コントローラは,前記共振周波数の一つ又は複数のシフトを決定し,前記エジェクタアセンブリが共振周波数で振動するように,前記シフトに基づいて前記第1及び第2の駆動周波数の少なくとも一つを制御するように構成される,請求項17に記載の液滴噴出装置。
- 前記コントローラは,前記駆動信号が無いとき,前記圧電アクチュエータからの減衰信号に基づいて,前記共振周波数の前記シフトを決定するように構成される,請求項18に記載の液滴噴出装置。
- 前記駆動信号は,前記圧電アクチュエータが,前記第1及び第2の駆動周波数間の干渉に基づいて,前記共振周波数で前記エジェクタアセンブリを振動させるように,前記流体を装荷した前記液滴発生器プレートに対して非共振である,請求項17に記載の液滴噴出装置。
- 流体の液滴を噴出するための圧電エジェクタ装置であって,
圧電アクチュエータ及び液滴発生プレートを含むエジェクタ機構と,
前記圧電アクチュエータを駆動するためのドライバ電子回路であって,最適な噴霧周波数を特定し,設定することによって,前記エジェクタ機構の自動調整を実行するように構成されたマイクロコントローラを含む電子回路と,
を備え,
少なくとも一つのバッテリから電力が前記圧電アクチュエータに供給され,前記マイクロコントローラは,前記バッテリの電圧を監視し,前記バッテリの緩やかな消耗を補償するように構成される圧電エジェクタ装置。 - 自動調整が,所定の周波数範囲の種々の駆動信号周波数それぞれの少なくとも1サイクルの発生と,各周波数発生に続く前記圧電アクチュエータによって放出された減衰信号から時エネルギ積(TEP)帰還を得ることを伴う,請求項21の圧電エジェクタ装置。
- サイクルごとに同一の振幅係数(電圧)で積分ピーク検出器内のコンデンサを充電するために,周波数ごとに複数の別個のサイクルを立て続けに発生し,前記振幅係数が記録され,前記手続は次の周波数で反復される,請求項22に記載の圧電エジェクタ機構。
- 前記所定の周波数範囲にわたって前記周波数を増加させるための少なくとも一つの数値制御発振器(NCO)を更に備える,請求項22に記載の圧電エジェクタ装置。
- ドライバ電子回路は,前記圧電アクチュエータを駆動するための所望の電圧に昇圧レールを充電するための昇圧回路を含む,請求項22に記載の圧電エジェクタ装置。
- 前記昇圧レールは,前記ADCからのサンプリング帰還を用いて,定電圧に充電される,請求項25に記載の圧電エジェクタ装置。
- コンデンサとして機能する前記圧電アクチュエータと共に共振タンクを規定する,少なくとも一つのインダクタを更に備える,請求項26に記載の圧電エジェクタ装置。
- 前記マイクロコントローラは,前記圧電アクチュエータへエネルギを適切に送り込むのに十分に高い駆動電圧を保証するために,前記駆動電圧を監視するために前記ADCを用いて,不要な噴出を回避するのに十分に低いレベルに前記電圧を維持しつつ,自動調整中に,各駆動信号周波数で定電圧を維持するように構成されている,請求項23に記載の圧電エジェクタ装置。
- 前記昇圧回路は,自動調整後に前記圧電アクチュエータ電圧を所定の電圧を上昇させるためにチャージポンプとして機能するように構成されている,請求項27に記載の圧電エジェクタ装置。
- 前記ドライバ電子回路は,二つのNCOを備える駆動回路と,該二つのNCOからの信号を合成して合成信号を規定する論理回路と,該合成信号を受信するための,相補波形発生器(CWG)と,該CWGに接続されたレベルシフタ回路と,前記レベルシフタに接続され,前記流体を噴出するための駆動信号で前記圧電アクチュエータを駆動するように動作可能なフルブリッジとを含む,請求項29の圧電エジェクタ装置。
- 前記マイクロコントローラは,前記昇圧出力電圧を平衡させ,それによって前記共振タンク内の増幅が定電圧駆動を提供するように,前記昇圧デューティサイクルを常に調整するように構成されている,請求項30の圧電エジェクタ装置。
- 前記マイクロコントローラは,前記昇圧レールを充電し,次いで,オーバシュート駆動を提供するための高速噴霧用の大規模オーバシュートを引き起こすように前記駆動回路をオンにするように構成される,請求項30に記載の圧電エジェクタ装置。
- 前記マイクロコントローラは,前記駆動信号を一定の周波数に維持するように構成される,請求項30に記載の圧電エジェクタ装置。
- 前記マイクロコントローラは,規定された帯域幅にわたって前記駆動信号の周波数を掃引することによって,前記駆動信号をディザ処理するように構成される,請求項30に記載の圧電エジェクタ装置。
- 前記論理回路は,前記二つのNCOからの信号を合成して,調整可能な不感帯を有する二つの逆位相の方形波を前記レベルシフタ回路に供給するために,周期的に前記CWGを無効にする合成信号を規定する,請求項30に記載の圧電エジェクタ装置。
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2013
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- 2013-05-15 EA EA201492094A patent/EA201492094A1/ru unknown
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- 2013-05-15 JP JP2015512800A patent/JP6240170B2/ja active Active
- 2013-05-15 CN CN201380032419.9A patent/CN104640708B/zh active Active
- 2013-05-15 CA CA2873508A patent/CA2873508A1/en not_active Abandoned
- 2013-05-15 WO PCT/US2013/041208 patent/WO2013173495A1/en active Application Filing
- 2013-05-15 AU AU2013262787A patent/AU2013262787A1/en not_active Abandoned
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CN104640708B (zh) | 2017-11-07 |
CA2873508A1 (en) | 2013-11-21 |
JP2015522444A (ja) | 2015-08-06 |
KR102234042B1 (ko) | 2021-03-30 |
EP2849949A1 (en) | 2015-03-25 |
KR20150022823A (ko) | 2015-03-04 |
WO2013173495A1 (en) | 2013-11-21 |
IL235703A0 (en) | 2015-01-29 |
SG10201602609XA (en) | 2016-05-30 |
AU2013262787A1 (en) | 2015-01-22 |
US20200094285A1 (en) | 2020-03-26 |
EA201492094A1 (ru) | 2015-04-30 |
US9539604B2 (en) | 2017-01-10 |
HK1210111A1 (en) | 2016-04-15 |
BR112014028400A2 (pt) | 2018-04-24 |
IN2014DN10575A (ja) | 2015-08-28 |
MX2014013962A (es) | 2015-06-17 |
CN104640708A (zh) | 2015-05-20 |
US11260416B2 (en) | 2022-03-01 |
US20170182510A1 (en) | 2017-06-29 |
SG11201407431RA (en) | 2014-12-30 |
EP2849949A4 (en) | 2017-07-26 |
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