GB0416569D0 - Curved electro-active actuators - Google Patents

Curved electro-active actuators

Info

Publication number
GB0416569D0
GB0416569D0 GBGB0416569.2A GB0416569A GB0416569D0 GB 0416569 D0 GB0416569 D0 GB 0416569D0 GB 0416569 A GB0416569 A GB 0416569A GB 0416569 D0 GB0416569 D0 GB 0416569D0
Authority
GB
United Kingdom
Prior art keywords
electro
actuators
active actuators
contour
layer
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
GBGB0416569.2A
Other versions
GB2399679B (en
GB2399679A (en
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.)
1 Ltd
Original Assignee
1 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
Application filed by 1 Ltd filed Critical 1 Ltd
Publication of GB0416569D0 publication Critical patent/GB0416569D0/en
Publication of GB2399679A publication Critical patent/GB2399679A/en
Application granted granted Critical
Publication of GB2399679B publication Critical patent/GB2399679B/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • 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
    • H10N30/2041—Beam type
    • H10N30/2042—Cantilevers, i.e. having one fixed end

Abstract

Electro-active actuators and methods of manufacturing such actuators are described having a longitudinally extended layer of electro-active material bent to form a non-straight, curved line or contour of uniform or non-uniform curvature, which line or contour having section with a mean radius of curvature to thickness ratio r/t close to 0.5. The layer is preferably monolithic with no buried electrode layer or layers, thus facilitating manufacture.
GB0416569A 2002-01-23 2003-01-22 Curved electro-active actuators Expired - Fee Related GB2399679B (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GBGB0201458.7A GB0201458D0 (en) 2002-01-23 2002-01-23 Curved electro-active actuators
PCT/GB2003/000201 WO2003063262A2 (en) 2002-01-23 2003-01-22 Curved electro-active actuators

Publications (3)

Publication Number Publication Date
GB0416569D0 true GB0416569D0 (en) 2004-08-25
GB2399679A GB2399679A (en) 2004-09-22
GB2399679B GB2399679B (en) 2005-06-22

Family

ID=9929559

Family Applications (2)

Application Number Title Priority Date Filing Date
GBGB0201458.7A Ceased GB0201458D0 (en) 2002-01-23 2002-01-23 Curved electro-active actuators
GB0416569A Expired - Fee Related GB2399679B (en) 2002-01-23 2003-01-22 Curved electro-active actuators

Family Applications Before (1)

Application Number Title Priority Date Filing Date
GBGB0201458.7A Ceased GB0201458D0 (en) 2002-01-23 2002-01-23 Curved electro-active actuators

Country Status (2)

Country Link
GB (2) GB0201458D0 (en)
WO (1) WO2003063262A2 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE602006014051D1 (en) * 2005-04-28 2010-06-17 Brother Ind Ltd Method for producing a piezoelectric actuator
US9932550B2 (en) 2012-11-27 2018-04-03 Cfd Research Corporation Multi-chambered cell culture device to model organ microphysiology

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3816774A (en) * 1972-01-28 1974-06-11 Victor Company Of Japan Curved piezoelectric elements
CA1165860A (en) * 1979-12-12 1984-04-17 Susumu Nishigaki Piezoelectric electro-mechanical bimorph transducer
US4330730A (en) * 1980-03-27 1982-05-18 Eastman Kodak Company Wound piezoelectric polymer flexure devices
US5288551A (en) * 1991-08-09 1994-02-22 Kureha Kagaku Kogyo Kabushiki Kaisha Flexible piezoelectric device
JPH06334236A (en) * 1993-05-20 1994-12-02 Fujitsu Ltd Manufacture of multilayer piezoelectric/electrostrictive actuator
US5559387A (en) * 1994-05-13 1996-09-24 Beurrier; Henry R. Piezoelectric actuators
WO1998007183A2 (en) * 1996-07-25 1998-02-19 Materials Systems Incorporated Serpentine cross section piezoelectric actuator
CN100375307C (en) * 1999-12-21 2008-03-12 1...有限公司 Electro-active device
GB2375884B (en) * 2001-05-23 2005-01-05 1 Ltd Electro-active devices

Also Published As

Publication number Publication date
GB0201458D0 (en) 2002-03-13
WO2003063262A3 (en) 2004-03-04
GB2399679B (en) 2005-06-22
GB2399679A (en) 2004-09-22
WO2003063262A2 (en) 2003-07-31

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Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee

Effective date: 20170122