HK1003608A1 - Piezoelectric/electrostrictive element having ceramic substrate formed essentially of stabilized zirconia - Google Patents

Piezoelectric/electrostrictive element having ceramic substrate formed essentially of stabilized zirconia

Info

Publication number
HK1003608A1
HK1003608A1 HK98102649A HK98102649A HK1003608A1 HK 1003608 A1 HK1003608 A1 HK 1003608A1 HK 98102649 A HK98102649 A HK 98102649A HK 98102649 A HK98102649 A HK 98102649A HK 1003608 A1 HK1003608 A1 HK 1003608A1
Authority
HK
Hong Kong
Prior art keywords
piezoelectric
ceramic substrate
substrate formed
stabilized zirconia
electrostrictive element
Prior art date
Application number
HK98102649A
Other languages
English (en)
Inventor
Yukihisa Takeuchi
Koji Kimura
Original Assignee
Ngk Insulators Ltd
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
Priority claimed from JP3203831A external-priority patent/JP3009945B2/ja
Priority claimed from JP28349491A external-priority patent/JP3272004B2/ja
Priority claimed from JP04094742A external-priority patent/JP3126212B2/ja
Application filed by Ngk Insulators Ltd filed Critical Ngk Insulators Ltd
Publication of HK1003608A1 publication Critical patent/HK1003608A1/xx

Links

Classifications

    • HELECTRICITY
    • H10SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10NELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10N30/00Piezoelectric or electrostrictive devices
    • H10N30/704Piezoelectric or electrostrictive devices based on piezoelectric or electrostrictive films or coatings
    • H10N30/706Piezoelectric or electrostrictive devices based on piezoelectric or electrostrictive films or coatings characterised by the underlying bases, e.g. substrates
    • HELECTRICITY
    • H10SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10NELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10N30/00Piezoelectric or electrostrictive devices
    • H10N30/20Piezoelectric or electrostrictive devices with electrical input and mechanical output, e.g. functioning as actuators or vibrators
    • H10N30/204Piezoelectric 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
    • H10N30/2041Beam type
    • HELECTRICITY
    • H10SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10NELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10N30/00Piezoelectric or electrostrictive devices
    • H10N30/20Piezoelectric or electrostrictive devices with electrical input and mechanical output, e.g. functioning as actuators or vibrators
    • H10N30/204Piezoelectric 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
    • H10N30/2041Beam type
    • H10N30/2042Cantilevers, i.e. having one fixed end
    • HELECTRICITY
    • H10SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10NELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10N30/00Piezoelectric or electrostrictive devices
    • H10N30/20Piezoelectric or electrostrictive devices with electrical input and mechanical output, e.g. functioning as actuators or vibrators
    • H10N30/204Piezoelectric 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
    • H10N30/2047Membrane type
HK98102649A 1991-07-18 1998-03-27 Piezoelectric/electrostrictive element having ceramic substrate formed essentially of stabilized zirconia HK1003608A1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP3203831A JP3009945B2 (ja) 1991-07-18 1991-07-18 圧電/電歪膜型素子
JP28349491A JP3272004B2 (ja) 1991-10-03 1991-10-03 圧電/電歪膜型素子
JP04094742A JP3126212B2 (ja) 1992-03-21 1992-03-21 圧電/電歪膜型素子

Publications (1)

Publication Number Publication Date
HK1003608A1 true HK1003608A1 (en) 1998-10-30

Family

ID=27307629

Family Applications (1)

Application Number Title Priority Date Filing Date
HK98102649A HK1003608A1 (en) 1991-07-18 1998-03-27 Piezoelectric/electrostrictive element having ceramic substrate formed essentially of stabilized zirconia

Country Status (4)

Country Link
US (2) US5430344A (de)
EP (1) EP0526048B1 (de)
DE (1) DE69223096T2 (de)
HK (1) HK1003608A1 (de)

Families Citing this family (79)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE69223096T2 (de) * 1991-07-18 1998-05-28 Ngk Insulators Ltd Piezoelektrischer/elektrostriktiver Element mit einem keramischen Substrat aus stabilisiertem Zirkoniumdioxid
US5650810A (en) * 1992-12-03 1997-07-22 Brother Kogyo Kabushiki Kaisha Ink jet print head having a manifold wall portion and method of producing the same by injection molding
JP3151644B2 (ja) * 1993-03-08 2001-04-03 日本碍子株式会社 圧電/電歪膜型素子
DE4325167C1 (de) * 1993-07-27 1994-09-22 Fraunhofer Ges Forschung Verfahren zur Herstellung von PZT-Schichten
US6004644A (en) * 1994-07-26 1999-12-21 Ngk Insulators, Ltd. Zirconia diaphragm structure and piezoelectric/electrostrictive film element having the zirconia diaphragm structure
US5802684A (en) * 1993-09-14 1998-09-08 Nikon Corporation Process for producing a vibration angular-velocity sensor
JP3280799B2 (ja) * 1993-10-14 2002-05-13 日本碍子株式会社 薄肉ジルコニアダイヤフラム構造体及びその製造法並びにそれを用いた圧電/電歪膜型素子
JP3088890B2 (ja) * 1994-02-04 2000-09-18 日本碍子株式会社 圧電/電歪膜型アクチュエータ
US6049158A (en) * 1994-02-14 2000-04-11 Ngk Insulators, Ltd. Piezoelectric/electrostrictive film element having convex diaphragm portions and method of producing the same
US5545461A (en) * 1994-02-14 1996-08-13 Ngk Insulators, Ltd. Ceramic diaphragm structure having convex diaphragm portion and method of producing the same
JP3323343B2 (ja) * 1994-04-01 2002-09-09 日本碍子株式会社 センサ素子及び粒子センサ
JP3187669B2 (ja) * 1994-04-01 2001-07-11 日本碍子株式会社 ディスプレイ素子及びディスプレイ装置
US5825121A (en) * 1994-07-08 1998-10-20 Seiko Epson Corporation Thin film piezoelectric device and ink jet recording head comprising the same
JP3471447B2 (ja) * 1994-11-16 2003-12-02 日本碍子株式会社 セラミックダイヤフラム構造体およびその製造方法
JP3371050B2 (ja) * 1995-10-27 2003-01-27 三菱電機株式会社 薄膜圧電素子
JP3501860B2 (ja) 1994-12-21 2004-03-02 日本碍子株式会社 圧電/電歪膜型素子及びその製造方法
EP0747976B1 (de) * 1994-12-27 2000-06-07 Seiko Epson Corporation Piezoelektrische dünnschichtanordnung, verfahren zur herstellung derselben und einen diese anordnung enthaltenden tintenstrahldruckkopf
JP3320947B2 (ja) * 1995-05-26 2002-09-03 日本碍子株式会社 微細貫通孔を有するセラミック部材
US5728244A (en) * 1995-05-26 1998-03-17 Ngk Insulators, Ltd. Process for production of ceramic member having fine throughholes
JP3320596B2 (ja) 1995-09-27 2002-09-03 日本碍子株式会社 圧電/電歪膜型素子及びその製造方法
JPH09138192A (ja) * 1995-09-29 1997-05-27 Ngk Insulators Ltd 多要素粒子センサ及び信号処理電子装置
JP3209082B2 (ja) * 1996-03-06 2001-09-17 セイコーエプソン株式会社 圧電体薄膜素子及びその製造方法、並びにこれを用いたインクジェット式記録ヘッド
DE69714909T2 (de) * 1996-05-27 2003-04-30 Ngk Insulators Ltd Piezoelektrisches Element des Dünnschichttyps
JP3517535B2 (ja) * 1996-07-10 2004-04-12 日本碍子株式会社 表示装置
CA2204719A1 (en) * 1996-08-09 1998-02-09 Wayne Kenneth Shaffer Zirconia ceramic as a digital storage media
US5925972A (en) * 1996-09-27 1999-07-20 Ngk Insulators, Ltd. Multiple element particle sensor and signal processing electronics
US6091182A (en) * 1996-11-07 2000-07-18 Ngk Insulators, Ltd. Piezoelectric/electrostrictive element
EP0853252B1 (de) * 1996-12-16 2004-03-10 Ngk Insulators, Ltd. Anzeigegerät
US5792379A (en) * 1997-03-27 1998-08-11 Motorola Inc. Low-loss PZT ceramic composition cofirable with silver at a reduced sintering temperature and process for producing same
JP3236542B2 (ja) * 1997-11-17 2001-12-10 セイコーエプソン株式会社 インクジェットプリントヘッド用アクチュエータの熱処理方法およびインクジェットプリントヘッドの製造方法
US6246156B1 (en) 1998-03-27 2001-06-12 Ngk Insulators, Ltd. Piezoelectric/electrostrictive element
DE60040107D1 (de) * 1999-01-29 2008-10-09 Seiko Epson Corp Piezoelektrischer Transducer und Anzeigevorrichtung mit elektrophoretischer Tinte, die den piezoelektrischen Transducer benutzt
US6498419B1 (en) 1999-10-01 2002-12-24 Ngk Insulators, Ltd. Piezoelectric/electrostrictive device having mutually opposing end surfaces and method of manufacturing the same
US6525448B1 (en) 1999-10-01 2003-02-25 Ngk Insulators Ltd Piezoelectric/electrostrictive device
US6404109B1 (en) 1999-10-01 2002-06-11 Ngk Insulators, Ltd. Piezoelectric/electrostrictive device having increased strength
JP3845543B2 (ja) * 1999-10-01 2006-11-15 日本碍子株式会社 圧電/電歪デバイス及びその製造方法
JP4058223B2 (ja) 1999-10-01 2008-03-05 日本碍子株式会社 圧電/電歪デバイス及びその製造方法
US7164221B1 (en) * 1999-10-01 2007-01-16 Ngk Insulators, Ltd. Piezoelectric/electrostrictive device and method of manufacturing same
JP3845544B2 (ja) * 1999-10-01 2006-11-15 日本碍子株式会社 圧電/電歪デバイス及びその製造方法
JP3436727B2 (ja) 1999-10-01 2003-08-18 日本碍子株式会社 圧電/電歪デバイス及びその製造方法
US6915547B2 (en) 1999-10-01 2005-07-12 Ngk Insulators, Ltd. Piezoelectric/electrostrictive device and method of manufacturing same
EP1148560B1 (de) 1999-10-01 2010-07-14 Ngk Insulators, Ltd. Piezoelektrisches/elektrostriktives bauelement und verfahren zu dessen herstellung
EP1139450A4 (de) 1999-10-01 2007-04-04 Ngk Insulators Ltd Piezoelektrisches / elektrostriktives bauelement
JP3436735B2 (ja) 1999-10-01 2003-08-18 日本碍子株式会社 圧電/電歪デバイス及びその製造方法
US6518690B2 (en) * 2000-04-19 2003-02-11 Ngk Insulators, Ltd. Piezoelectric/electrostrictive film type elements and process for producing the same
TWI248574B (en) * 2000-05-22 2006-02-01 Alps Electric Co Ltd Input device having deflection detection elements
JP3465675B2 (ja) 2000-09-11 2003-11-10 日本碍子株式会社 圧電/電歪膜型素子
JP4015820B2 (ja) * 2001-04-11 2007-11-28 日本碍子株式会社 配線基板及びその製造方法
JP4067491B2 (ja) * 2001-09-11 2008-03-26 日本碍子株式会社 圧電/電歪デバイスの製造方法
JP2003146751A (ja) * 2001-11-20 2003-05-21 Toshiba Ceramics Co Ltd 耐プラズマ性部材及びその製造方法
US7052117B2 (en) 2002-07-03 2006-05-30 Dimatix, Inc. Printhead having a thin pre-fired piezoelectric layer
US7164179B2 (en) * 2002-08-07 2007-01-16 Matsushita Electric Industrial Co., Ltd. Angular-velocity sensor
US6964201B2 (en) * 2003-02-25 2005-11-15 Palo Alto Research Center Incorporated Large dimension, flexible piezoelectric ceramic tapes
US6895645B2 (en) * 2003-02-25 2005-05-24 Palo Alto Research Center Incorporated Methods to make bimorph MEMS devices
US7089635B2 (en) * 2003-02-25 2006-08-15 Palo Alto Research Center, Incorporated Methods to make piezoelectric ceramic thick film arrays and elements
US7009328B2 (en) * 2003-06-20 2006-03-07 Ngk Insulators, Ltd. Piezoelectric/electrostrictive device made of piezoelectric/electrostrictive film and manufacturing method
US7251118B2 (en) * 2003-10-02 2007-07-31 Donald Nevin Method and apparatus for large scale storage of electrical potential
TWI255057B (en) * 2004-02-27 2006-05-11 Canon Kk Dielectric element, piezoelectric element, ink jet head and ink jet recording apparatus and manufacturing method of same
US7281778B2 (en) 2004-03-15 2007-10-16 Fujifilm Dimatix, Inc. High frequency droplet ejection device and method
US8491076B2 (en) 2004-03-15 2013-07-23 Fujifilm Dimatix, Inc. Fluid droplet ejection devices and methods
JP5089860B2 (ja) * 2004-12-03 2012-12-05 富士フイルム株式会社 圧電アクチュエータ及び液体吐出ヘッド
JP5004806B2 (ja) 2004-12-30 2012-08-22 フジフィルム ディマティックス, インコーポレイテッド インクジェットプリント法
JP4091641B2 (ja) * 2006-04-07 2008-05-28 富士フイルム株式会社 圧電素子とその製造方法、及びインクジェット式記録ヘッド
EP1882920A1 (de) * 2006-07-28 2008-01-30 IEE INTERNATIONAL ELECTRONICS & ENGINEERING S.A. Herstellungsverfahren eines Folienensors
US7988247B2 (en) 2007-01-11 2011-08-02 Fujifilm Dimatix, Inc. Ejection of drops having variable drop size from an ink jet printer
DE102009036424A1 (de) * 2009-08-06 2011-02-10 Richard Wolf Gmbh Endoskopisches Instrument
DE102009043132B4 (de) * 2009-09-17 2014-02-20 Technische Universität Dresden Vorrichtung für eine definierte Positionierung von faden- oder rohrförmigen elektrostriktiven, ferroelektrischen oder piezokeramischen Elementen für die Herstellung von aktorisch und/oder sensorisch wirksamen Elementen
CN103069598B (zh) * 2010-06-30 2016-03-02 惠普发展公司,有限责任合伙企业 具有处于薄膜片材中且基本垂直于衬底的电极的压电机构
CN102834943B (zh) * 2011-03-25 2015-09-09 日本碍子株式会社 层叠体及其制造方法
TW201308866A (zh) * 2011-08-04 2013-02-16 Chief Land Electronic Co Ltd 能量轉換模組
JP2014072511A (ja) * 2012-10-02 2014-04-21 Ngk Insulators Ltd 積層体
DE102013200354A1 (de) 2013-01-14 2014-07-17 Robert Bosch Gmbh Verfahren und Vorrichtung zum Herstellen eines Multilagenelektrodensystems
CN106461393B (zh) * 2014-06-27 2020-01-03 索尼公司 陀螺仪传感器和电子装置
CN110832655B (zh) * 2017-09-22 2023-07-28 Tdk株式会社 压电薄膜元件
JP7215425B2 (ja) * 2017-09-22 2023-01-31 Tdk株式会社 圧電薄膜素子
CN110880923A (zh) * 2019-12-10 2020-03-13 武汉大学 一种螺旋状的声波谐振器
US11527700B2 (en) 2019-12-20 2022-12-13 Vanguard International Semiconductor Singapore Pte. Ltd. Microphone device with single crystal piezoelectric film and method of forming the same
CN111162749A (zh) * 2020-01-08 2020-05-15 武汉大学 一种新型谐振器结构
US20220140801A1 (en) * 2020-10-30 2022-05-05 Resonant Inc. Transversely-excited film bulk acoustic resonator with spiral interdigitated transducer fingers

Family Cites Families (42)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL81373C (de) * 1947-12-26
NL261168A (de) * 1960-03-07
GB1122245A (en) * 1966-04-22 1968-07-31 Marconi Co Ltd Improvements in or relating to electro-mechanical resonators
US4491761A (en) * 1981-12-28 1985-01-01 United Technologies Corporation Planar piezoelectric deflector with arrays of alternate piezoelectric effect
JPS58137317A (ja) * 1982-02-09 1983-08-15 Nec Corp 圧電薄膜複合振動子
JPS58196069A (ja) * 1982-05-12 1983-11-15 Nec Corp 電歪効果素子
JPS5932182A (ja) * 1982-08-16 1984-02-21 Sumitomo Special Metals Co Ltd バイモルフ用圧電素子
DE3306101A1 (de) * 1983-02-22 1984-08-23 Siemens AG, 1000 Berlin und 8000 München Mit fluessigkeitstroepfchen arbeitendes schreibgeraet
JPS59175777A (ja) * 1983-03-25 1984-10-04 Sumitomo Special Metals Co Ltd バイモルフ振動子の駆動方法
JPS6066882A (ja) * 1983-09-22 1985-04-17 Murata Mfg Co Ltd 圧電変位素子およびその分極方法
JPS6086880A (ja) * 1983-10-19 1985-05-16 Nec Corp 電歪効果素子
JPS612376A (ja) * 1984-06-14 1986-01-08 Ngk Spark Plug Co Ltd シ−ト状圧電体
GB2161647A (en) * 1984-07-10 1986-01-15 Gen Electric Co Plc Piezoelectric devices
FR2570223B1 (fr) * 1984-09-07 1986-12-05 Labo Electronique Physique Dispositif piezoelectrique et procede de realisation d'un tel dispositif
JPS61205100A (ja) * 1985-03-08 1986-09-11 Murata Mfg Co Ltd 圧電発音体
JPS61253873A (ja) * 1985-05-02 1986-11-11 Toshiba Corp 圧電セラミツク材料
US4680595A (en) * 1985-11-06 1987-07-14 Pitney Bowes Inc. Impulse ink jet print head and method of making same
DE3674397D1 (de) * 1985-11-27 1990-10-25 Cbl Ceramics Ltd Beryllium oxid keramik.
US4742260A (en) * 1986-02-06 1988-05-03 Hiroshi Shimizu Piezoelectrically driving device
JPS62198190A (ja) * 1986-02-25 1987-09-01 三菱電機株式会社 印刷配線板の製造方法
JPS62213399A (ja) * 1986-03-12 1987-09-19 Omron Tateisi Electronics Co 圧電磁器
US4769570A (en) * 1986-04-07 1988-09-06 Toshiba Ceramics Co., Ltd. Piezo-electric device
JPH0732273B2 (ja) * 1986-05-22 1995-04-10 日本電気株式会社 電歪効果素子
JPS62298189A (ja) * 1986-06-18 1987-12-25 Sumitomo Special Metals Co Ltd 圧電アクチユエ−タ
JPS62298190A (ja) * 1986-06-18 1987-12-25 Sumitomo Special Metals Co Ltd 圧電アクチユエ−タ
US4697118A (en) * 1986-08-15 1987-09-29 General Electric Company Piezoelectric switch
JPS6372171A (ja) * 1986-09-12 1988-04-01 Ngk Spark Plug Co Ltd 電歪駆動体の製造方法
EP0262637B1 (de) * 1986-09-29 1995-03-22 Mitsubishi Chemical Corporation Piezoelektrischer Antrieb
JPS6372172A (ja) * 1987-03-11 1988-04-01 Ngk Spark Plug Co Ltd 薄板状電歪積層体
JPS63285983A (ja) * 1987-05-18 1988-11-22 Omron Tateisi Electronics Co 薄膜圧電素子の製造方法
JPS64783A (en) * 1987-10-24 1989-01-05 Kogyosha Tsushin Kiki Seisakusho:Kk Piezoelectric actuator
US4783821A (en) * 1987-11-25 1988-11-08 The Regents Of The University Of California IC processed piezoelectric microphone
US4906840A (en) * 1988-01-27 1990-03-06 The Board Of Trustees Of Leland Stanford Jr., University Integrated scanning tunneling microscope
US4825227A (en) * 1988-02-29 1989-04-25 Spectra, Inc. Shear mode transducer for ink jet systems
EP0408306B1 (de) * 1989-07-11 1996-05-01 Ngk Insulators, Ltd. Einen piezoelektrischen/elektrostriktiven Film enthaltende piezoelektrischer/elektrostriktiver Antrieb
JP2886588B2 (ja) * 1989-07-11 1999-04-26 日本碍子株式会社 圧電/電歪アクチュエータ
US5089455A (en) * 1989-08-11 1992-02-18 Corning Incorporated Thin flexible sintered structures
JPH07108102B2 (ja) * 1990-05-01 1995-11-15 日本碍子株式会社 圧電/電歪膜型アクチュエータの製造方法
US5210455A (en) * 1990-07-26 1993-05-11 Ngk Insulators, Ltd. Piezoelectric/electrostrictive actuator having ceramic substrate having recess defining thin-walled portion
DE69223096T2 (de) * 1991-07-18 1998-05-28 Ngk Insulators Ltd Piezoelektrischer/elektrostriktiver Element mit einem keramischen Substrat aus stabilisiertem Zirkoniumdioxid
JP3106026B2 (ja) * 1993-02-23 2000-11-06 日本碍子株式会社 圧電/電歪アクチュエータ
JP3151644B2 (ja) * 1993-03-08 2001-04-03 日本碍子株式会社 圧電/電歪膜型素子

Also Published As

Publication number Publication date
US5430344A (en) 1995-07-04
DE69223096D1 (de) 1997-12-18
EP0526048B1 (de) 1997-11-12
US5691594A (en) 1997-11-25
EP0526048A1 (de) 1993-02-03
DE69223096T2 (de) 1998-05-28

Similar Documents

Publication Publication Date Title
HK1003608A1 (en) Piezoelectric/electrostrictive element having ceramic substrate formed essentially of stabilized zirconia
DE69125762T2 (de) Piezoelektrisches/elektrostriktives Antriebselement mit keramischem Substrat
AU563467B2 (en) Ceramic substrate for piezoelectric element
AU6237790A (en) Ceramic bodies formed from partially stabilized zirconia
GB9322259D0 (en) Component of basic substrate with ceramic coating
HK24197A (en) Piezeoelectric/electrostrictive actuator having at least one piezoelectric/electrostrictive film
DE69207297D1 (de) Piezoelektrische keramische Zusammensetzung
DE69404804D1 (de) Piezoelektrische Keramiken
DE69416780D1 (de) Herstellung keramischer Festkörper
DE69703823D1 (de) In-situ Oberflächennitrierung von Zirkonoxidkeramiken
DE69318071D1 (de) Piezoelektrische Keramiken
ITTO930549A0 (it) Trattamento superficiale di refrattari
AU2002339306A1 (en) Piezoelectric ceramic materials based on lead zirconate titanate (pzt) having the crystal structure of perovskite
DE69605966D1 (de) Piezoelektrische Keramiken
DE68902930T2 (de) Elektrostriktives element und keramisches material desselben.
DE69405701T2 (de) Piezoelektrische keramische Zusammensetzung
LV10072A (lv) Keramisks pjezoelektrisks materials
KR950007359U (ko) 멀티 세라믹 기판
KR970048493U (ko) 표면 실장형 압전 세라믹
KR950022207U (ko) 압전 세라믹 진동자
KR930016160U (ko) 세라믹 기판
KR890016662U (ko) 압전 세라믹 부저의 케이스
EP0526728A3 (en) Piezoelectric element
GB9222740D0 (en) Method of manufacturing ceramic powders having the perovskite strukture
AU8047491A (en) Zirconia ceramics

Legal Events

Date Code Title Description
PF Patent in force
PC Patent ceased (i.e. patent has lapsed due to the failure to pay the renewal fee)

Effective date: 20060716