FR2139419A5 - - Google Patents

Info

Publication number
FR2139419A5
FR2139419A5 FR7216782A FR7216782A FR2139419A5 FR 2139419 A5 FR2139419 A5 FR 2139419A5 FR 7216782 A FR7216782 A FR 7216782A FR 7216782 A FR7216782 A FR 7216782A FR 2139419 A5 FR2139419 A5 FR 2139419A5
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
FR7216782A
Inventor
Yukio Kasahara
Takashi Iguchi
Masanari Mikoda
Isao Ueno
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.)
Panasonic Holdings Corp
Original Assignee
Matsushita Electric Industrial Co 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 JP3284971A external-priority patent/JPS5211549B1/ja
Application filed by Matsushita Electric Industrial Co Ltd filed Critical Matsushita Electric Industrial Co Ltd
Application granted granted Critical
Publication of FR2139419A5 publication Critical patent/FR2139419A5/fr
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
    • H03H9/00—Networks comprising electromechanical or electro-acoustic devices; Electromechanical resonators
    • H03H9/30—Time-delay networks
    • H03H9/36—Time-delay networks with non-adjustable delay time

Landscapes

  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Piezo-Electric Or Mechanical Vibrators, Or Delay Or Filter Circuits (AREA)
  • Transducers For Ultrasonic Waves (AREA)
  • Investigating Or Analyzing Materials By The Use Of Ultrasonic Waves (AREA)
  • Compositions Of Oxide Ceramics (AREA)
FR7216782A 1971-05-14 1972-05-10 Expired FR2139419A5 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP3284971A JPS5211549B1 (fr) 1971-05-14 1971-05-14
JP47023371A JPS4890647A (fr) 1971-05-14 1972-03-06

Publications (1)

Publication Number Publication Date
FR2139419A5 true FR2139419A5 (fr) 1973-01-05

Family

ID=26360725

Family Applications (2)

Application Number Title Priority Date Filing Date
FR7216782A Expired FR2139419A5 (fr) 1971-05-14 1972-05-10
FR7230806A Expired FR2175379A5 (fr) 1971-05-14 1972-08-30

Family Applications After (1)

Application Number Title Priority Date Filing Date
FR7230806A Expired FR2175379A5 (fr) 1971-05-14 1972-08-30

Country Status (8)

Country Link
US (1) US3798577A (fr)
JP (1) JPS4890647A (fr)
AU (2) AU444943B2 (fr)
CA (2) CA954597A (fr)
DE (2) DE2223400B2 (fr)
FR (2) FR2139419A5 (fr)
GB (2) GB1382703A (fr)
NL (2) NL7206138A (fr)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3873946A (en) * 1973-10-04 1975-03-25 Hughes Aircraft Co Acoustic surface wave tapped delay line
JPS5710516A (en) * 1980-06-23 1982-01-20 Matsushita Electric Ind Co Ltd Comb type filter
JPS61244112A (ja) * 1985-04-23 1986-10-30 Asahi Glass Co Ltd 超音波遅延線
US5173667A (en) * 1991-02-19 1992-12-22 Ford Motor Company Acoustic wave transmission media delay line having internally disposed absorber channels

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2859415A (en) * 1952-09-03 1958-11-04 Bell Telephone Labor Inc Ultrasonic acoustic wave transmission delay lines
US2839731A (en) * 1953-01-14 1958-06-17 Bell Telephone Labor Inc Multi-facet ultrasonic delay line
GB748438A (en) * 1953-11-30 1956-05-02 Marconi Wireless Telegraph Co Improvements in or relating to ultrasonic delay devices
US3131459A (en) * 1959-11-09 1964-05-05 Corning Glass Works Method of bonding absorbing material to a delay line
US3247473A (en) * 1959-11-09 1966-04-19 Corning Glass Works Cold diffusion bond between acoustic delay line and back electrode or acoustic absorber
NL295653A (fr) * 1962-08-15
FR1559651A (fr) * 1967-11-15 1969-03-14
GB1171261A (en) * 1968-02-16 1969-11-19 Mullard Ltd Improved Ultra-Sonic Delay Line
JPS5145217B1 (fr) * 1969-12-06 1976-12-02

Also Published As

Publication number Publication date
GB1382703A (en) 1975-02-05
AU4201672A (en) 1973-11-15
DE2240406A1 (de) 1973-09-20
DE2223400A1 (de) 1973-01-18
DE2223400C3 (fr) 1975-04-30
GB1409766A (en) 1975-10-15
NL7210669A (fr) 1973-09-10
FR2175379A5 (fr) 1973-10-19
CA958085A (en) 1974-11-19
AU444943B2 (en) 1974-02-07
DE2240406B2 (de) 1975-02-20
NL7206138A (fr) 1972-11-16
DE2223400B2 (de) 1974-09-26
AU4757172A (en) 1974-05-23
US3798577A (en) 1974-03-19
JPS4890647A (fr) 1973-11-26
CA954597A (en) 1974-09-10
AU450723B2 (en) 1974-07-18

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