JPS57153400U - - Google Patents

Info

Publication number
JPS57153400U
JPS57153400U JP1981039773U JP3977381U JPS57153400U JP S57153400 U JPS57153400 U JP S57153400U JP 1981039773 U JP1981039773 U JP 1981039773U JP 3977381 U JP3977381 U JP 3977381U JP S57153400 U JPS57153400 U JP S57153400U
Authority
JP
Japan
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.)
Pending
Application number
JP1981039773U
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
Priority to JP1981039773U priority Critical patent/JPS57153400U/ja
Priority to GB8207087A priority patent/GB2096862B/en
Priority to US06/357,578 priority patent/US4386244A/en
Priority to BR8201551A priority patent/BR8201551A/pt
Publication of JPS57153400U publication Critical patent/JPS57153400U/ja
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R11/00—Transducers of moving-armature or moving-core type

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Electrostatic, Electromagnetic, Magneto- Strictive, And Variable-Resistance Transducers (AREA)
  • Measuring Magnetic Variables (AREA)
JP1981039773U 1981-03-20 1981-03-20 Pending JPS57153400U (ja)

Priority Applications (4)

Application Number Priority Date Filing Date Title
JP1981039773U JPS57153400U (ja) 1981-03-20 1981-03-20
GB8207087A GB2096862B (en) 1981-03-20 1982-03-11 Electromagnetic transducer
US06/357,578 US4386244A (en) 1981-03-20 1982-03-12 Electromagnetic transducer
BR8201551A BR8201551A (pt) 1981-03-20 1982-03-19 Transdutor eletromagnetico

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1981039773U JPS57153400U (ja) 1981-03-20 1981-03-20

Publications (1)

Publication Number Publication Date
JPS57153400U true JPS57153400U (ja) 1982-09-27

Family

ID=12562246

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1981039773U Pending JPS57153400U (ja) 1981-03-20 1981-03-20

Country Status (4)

Country Link
US (1) US4386244A (ja)
JP (1) JPS57153400U (ja)
BR (1) BR8201551A (ja)
GB (1) GB2096862B (ja)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH06319190A (ja) * 1992-03-31 1994-11-15 Souei Denki Seisakusho:Yugen レシーバーとマイクロホーンを一体化したイヤホーンの構成方法装置
US5724015A (en) * 1995-06-01 1998-03-03 California Institute Of Technology Bulk micromachined inductive transducers on silicon
JPH10224892A (ja) * 1997-02-12 1998-08-21 Star Micronics Co Ltd 電気音響変換器
JPH10290494A (ja) * 1997-04-15 1998-10-27 Star Micronics Co Ltd 電気音響変換器
CN1159951C (zh) * 1999-05-14 2004-07-28 松下电器产业株式会社 电磁换能器和便携式通信设备
US6709886B2 (en) 2000-04-25 2004-03-23 Umachines, Inc. Method of fabricating micromachined devices
US6639713B2 (en) 2000-04-25 2003-10-28 Umachines, Inc. Silicon micromachined optical device

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2220942A (en) * 1936-08-01 1940-11-12 Bell Telephone Labor Inc Acoustic device
NL73059C (ja) * 1939-05-19
US2754373A (en) * 1952-08-22 1956-07-10 Harry B Shaper Miniature hearing-aid receiver
US3515818A (en) * 1962-01-23 1970-06-02 Tibbetts Industries Magnetic translating device
US3593217A (en) * 1967-10-27 1971-07-13 Texas Instruments Inc Subminiature tunable circuits in modular form and method for making same
US3542974A (en) * 1968-06-14 1970-11-24 Western Electric Co Electrical transducer
JPS5926577Y2 (ja) * 1979-09-17 1984-08-02 ティーディーケイ株式会社 小型インダクタンス素子

Also Published As

Publication number Publication date
US4386244A (en) 1983-05-31
GB2096862A (en) 1982-10-20
GB2096862B (en) 1984-11-07
BR8201551A (pt) 1983-02-08

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