JPS5939200A - 鋼管浸漬焼入装置における鋼管保持装置 - Google Patents

鋼管浸漬焼入装置における鋼管保持装置

Info

Publication number
JPS5939200A
JPS5939200A JP14947982A JP14947982A JPS5939200A JP S5939200 A JPS5939200 A JP S5939200A JP 14947982 A JP14947982 A JP 14947982A JP 14947982 A JP14947982 A JP 14947982A JP S5939200 A JPS5939200 A JP S5939200A
Authority
JP
Japan
Prior art keywords
frame
bimorphs
diaphragm
piezoelectric
plate
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
JP14947982A
Other languages
English (en)
Japanese (ja)
Other versions
JPH0554318B2 (en]
Inventor
Hiroshi Fujishima
藤島　啓
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.)
Murata Manufacturing Co Ltd
Original Assignee
Murata Manufacturing 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
Application filed by Murata Manufacturing Co Ltd filed Critical Murata Manufacturing Co Ltd
Priority to JP14947982A priority Critical patent/JPS5939200A/ja
Publication of JPS5939200A publication Critical patent/JPS5939200A/ja
Publication of JPH0554318B2 publication Critical patent/JPH0554318B2/ja
Granted 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
    • H04R17/00—Piezoelectric transducers; Electrostrictive transducers

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Piezo-Electric Transducers For Audible Bands (AREA)
JP14947982A 1982-08-27 1982-08-27 鋼管浸漬焼入装置における鋼管保持装置 Granted JPS5939200A (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP14947982A JPS5939200A (ja) 1982-08-27 1982-08-27 鋼管浸漬焼入装置における鋼管保持装置

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP14947982A JPS5939200A (ja) 1982-08-27 1982-08-27 鋼管浸漬焼入装置における鋼管保持装置

Publications (2)

Publication Number Publication Date
JPS5939200A true JPS5939200A (ja) 1984-03-03
JPH0554318B2 JPH0554318B2 (en]) 1993-08-12

Family

ID=15476045

Family Applications (1)

Application Number Title Priority Date Filing Date
JP14947982A Granted JPS5939200A (ja) 1982-08-27 1982-08-27 鋼管浸漬焼入装置における鋼管保持装置

Country Status (1)

Country Link
JP (1) JPS5939200A (en])

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100610181B1 (ko) 2004-10-27 2006-08-09 경북대학교 산학협력단 이식형 보청기에 구비되는 마이크로폰
JP2006229647A (ja) * 2005-02-18 2006-08-31 Nec Tokin Corp 骨伝導用音響用振動子
JPWO2005094121A1 (ja) * 2004-03-25 2008-02-14 日本電気株式会社 圧電音響素子、音響装置及び携帯端末装置
JPWO2007060768A1 (ja) * 2005-11-24 2009-05-07 株式会社村田製作所 電気音響変換器

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS524029U (en]) * 1975-06-24 1977-01-12
JPS56169500A (en) * 1980-05-30 1981-12-26 Sony Corp Speaker

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS524029U (en]) * 1975-06-24 1977-01-12
JPS56169500A (en) * 1980-05-30 1981-12-26 Sony Corp Speaker

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPWO2005094121A1 (ja) * 2004-03-25 2008-02-14 日本電気株式会社 圧電音響素子、音響装置及び携帯端末装置
JP4662072B2 (ja) * 2004-03-25 2011-03-30 日本電気株式会社 圧電音響素子、音響装置及び携帯端末装置
KR100610181B1 (ko) 2004-10-27 2006-08-09 경북대학교 산학협력단 이식형 보청기에 구비되는 마이크로폰
JP2006229647A (ja) * 2005-02-18 2006-08-31 Nec Tokin Corp 骨伝導用音響用振動子
JPWO2007060768A1 (ja) * 2005-11-24 2009-05-07 株式会社村田製作所 電気音響変換器
JP4766052B2 (ja) * 2005-11-24 2011-09-07 株式会社村田製作所 電気音響変換器

Also Published As

Publication number Publication date
JPH0554318B2 (en]) 1993-08-12

Similar Documents

Publication Publication Date Title
KR101781901B1 (ko) 전기 음향 변환 장치
JP4802998B2 (ja) 静電型超音波トランスデューサの駆動制御方法、静電型超音波トランスデューサ、これを用いた超音波スピーカ、音声信号再生方法、超指向性音響システム及び表示装置
JP4682927B2 (ja) 静電型超音波トランスデューサ、超音波スピーカ、音声信号再生方法、超音波トランスデューサの電極の製造方法、超音波トランスデューサの製造方法、超指向性音響システム、および表示装置
JP5103873B2 (ja) 静電型超音波トランスデューサの駆動制御方法、静電型超音波トランスデューサ、これを用いた超音波スピーカ、音声信号再生方法、超指向性音響システム及び表示装置
JP5428861B2 (ja) 圧電音響素子及び電子機器
CN102450035B (zh) 压电型电声换能器
JP5860559B1 (ja) 電気音響変換装置
JP2010062819A (ja) スピーカ装置
CN1946248A (zh) 静电型超声波换能器及超声波扬声器
JP2004260346A (ja) 電気音響変換装置
JPS5939200A (ja) 鋼管浸漬焼入装置における鋼管保持装置
JP2008118247A (ja) 静電型超音波トランスデューサ、これを用いた超音波スピーカ、音声信号再生方法、超指向性音響システム及び表示装置
JPH02170795A (ja) パネル型スピーカ
JPH08111896A (ja) 電気音響変換器
JPH10234098A (ja) 静電型電気音響変換器
JPS58166900A (ja) 圧電式音響発生装置
WO2008057004A1 (fr) Procédé de conversion de signaux électriques en oscillations acoustiques et transducteur électro-gazo-cinétique polyforme
CN114866933A (zh) 扬声器和电子设备
TWI824533B (zh) 薄型揚聲器
JP3858415B2 (ja) パネル型スピーカ装置
CN103716740A (zh) 扬声器装置
JPH11308691A (ja) スピーカ装置
KR100242660B1 (ko) 초음파 트랜스듀서
JPH0888896A (ja) 複合圧電スピーカー
KR19990016377U (ko) 박막형 초음파발생트랜스듀서