FR1551640A - - Google Patents

Info

Publication number
FR1551640A
FR1551640A FR1551640DA FR1551640A FR 1551640 A FR1551640 A FR 1551640A FR 1551640D A FR1551640D A FR 1551640DA FR 1551640 A FR1551640 A FR 1551640A
Authority
FR
France
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
Application number
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 filed Critical
Application granted granted Critical
Publication of FR1551640A publication Critical patent/FR1551640A/fr
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11C—STATIC STORES
    • G11C11/00—Digital stores characterised by the use of particular electric or magnetic storage elements; Storage elements therefor
    • G11C11/21—Digital stores characterised by the use of particular electric or magnetic storage elements; Storage elements therefor using electric elements
    • G11C11/22—Digital stores characterised by the use of particular electric or magnetic storage elements; Storage elements therefor using electric elements using ferroelectric elements

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Hardware Design (AREA)
  • Semiconductor Memories (AREA)
  • Inorganic Insulating Materials (AREA)
  • Fixed Capacitors And Capacitor Manufacturing Machines (AREA)
FR1551640D 1967-05-23 1968-01-19 Expired FR1551640A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US640717A US3401377A (en) 1967-05-23 1967-05-23 Ceramic memory having a piezoelectric drive member

Publications (1)

Publication Number Publication Date
FR1551640A true FR1551640A (fr) 1968-12-27

Family

ID=24569426

Family Applications (1)

Application Number Title Priority Date Filing Date
FR1551640D Expired FR1551640A (fr) 1967-05-23 1968-01-19

Country Status (4)

Country Link
US (1) US3401377A (fr)
DE (1) DE1774317A1 (fr)
FR (1) FR1551640A (fr)
GB (3) GB1233911A (fr)

Families Citing this family (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61144565A (ja) * 1984-12-18 1986-07-02 Toshiba Corp 高分子圧電型超音波探触子
US4634917A (en) * 1984-12-26 1987-01-06 Battelle Memorial Institute Active multi-layer piezoelectric tactile sensor apparatus and method
US5045744A (en) * 1988-12-23 1991-09-03 Murata Mfg. Co. Energy-trapping-by-frequency-lowering-type piezoelectric-resonance device
US5118982A (en) * 1989-05-31 1992-06-02 Nec Corporation Thickness mode vibration piezoelectric transformer
US5224069A (en) * 1989-07-06 1993-06-29 Kabushiki Kaisha Toshiba Ferroelectric capacitor memory circuit MOS setting and transmission transistors
US5440193A (en) * 1990-02-27 1995-08-08 University Of Maryland Method and apparatus for structural, actuation and sensing in a desired direction
US5410205A (en) * 1993-02-11 1995-04-25 Hewlett-Packard Company Ultrasonic transducer having two or more resonance frequencies
US5465725A (en) * 1993-06-15 1995-11-14 Hewlett Packard Company Ultrasonic probe
US5434827A (en) * 1993-06-15 1995-07-18 Hewlett-Packard Company Matching layer for front acoustic impedance matching of clinical ultrasonic tranducers
US5460181A (en) * 1994-10-06 1995-10-24 Hewlett Packard Co. Ultrasonic transducer for three dimensional imaging
US5487030A (en) * 1994-08-26 1996-01-23 Hughes Aircraft Company Ferroelectric interruptible read memory
US5729488A (en) * 1994-08-26 1998-03-17 Hughes Electronics Non-destructive read ferroelectric memory cell utilizing the ramer-drab effect
US6182340B1 (en) * 1998-10-23 2001-02-06 Face International Corp. Method of manufacturing a co-fired flextensional piezoelectric transformer
US7199495B2 (en) * 2004-04-01 2007-04-03 The Hong Kong Polytechnic University Magnetoelectric devices and methods of using same
US20060279171A1 (en) * 2005-06-10 2006-12-14 Viehland Dwight D Broadband, Nonreciprocal Network Element
US8854923B1 (en) * 2011-09-23 2014-10-07 The United States Of America As Represented By The Secretary Of The Navy Variable resonance acoustic transducer

Also Published As

Publication number Publication date
DE1774317A1 (de) 1971-07-29
GB1233911A (fr) 1971-06-03
US3401377A (en) 1968-09-10
GB1233912A (fr) 1971-06-03
GB1233913A (fr) 1971-06-03

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Legal Events

Date Code Title Description
ST Notification of lapse