JPH0314396B2 - - Google Patents

Info

Publication number
JPH0314396B2
JPH0314396B2 JP271785A JP271785A JPH0314396B2 JP H0314396 B2 JPH0314396 B2 JP H0314396B2 JP 271785 A JP271785 A JP 271785A JP 271785 A JP271785 A JP 271785A JP H0314396 B2 JPH0314396 B2 JP H0314396B2
Authority
JP
Japan
Prior art keywords
diaphragm
diamond
alumina
speaker
carbon
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.)
Expired
Application number
JP271785A
Other languages
English (en)
Japanese (ja)
Other versions
JPS61161897A (ja
Inventor
Naoharu Fujimori
Akira Doi
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.)
Sumitomo Electric Industries Ltd
Original Assignee
Sumitomo Electric Industries 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 Sumitomo Electric Industries Ltd filed Critical Sumitomo Electric Industries Ltd
Priority to JP271785A priority Critical patent/JPS61161897A/ja
Publication of JPS61161897A publication Critical patent/JPS61161897A/ja
Publication of JPH0314396B2 publication Critical patent/JPH0314396B2/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; ELECTRIC HEARING AIDS; PUBLIC ADDRESS SYSTEMS
    • H04R7/00—Diaphragms for electromechanical transducers; Cones
    • H04R7/02—Diaphragms for electromechanical transducers; Cones characterised by the construction

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Diaphragms For Electromechanical Transducers (AREA)
JP271785A 1985-01-10 1985-01-10 スピ−カ−振動板 Granted JPS61161897A (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP271785A JPS61161897A (ja) 1985-01-10 1985-01-10 スピ−カ−振動板

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP271785A JPS61161897A (ja) 1985-01-10 1985-01-10 スピ−カ−振動板

Publications (2)

Publication Number Publication Date
JPS61161897A JPS61161897A (ja) 1986-07-22
JPH0314396B2 true JPH0314396B2 (enExample) 1991-02-26

Family

ID=11537058

Family Applications (1)

Application Number Title Priority Date Filing Date
JP271785A Granted JPS61161897A (ja) 1985-01-10 1985-01-10 スピ−カ−振動板

Country Status (1)

Country Link
JP (1) JPS61161897A (enExample)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0459425A1 (en) * 1990-05-30 1991-12-04 Idemitsu Petrochemical Company Limited Process for the preparation of diamond
GB0500788D0 (en) 2005-01-14 2005-02-23 Element Six Ltd Rigid three-dimensional components

Also Published As

Publication number Publication date
JPS61161897A (ja) 1986-07-22

Similar Documents

Publication Publication Date Title
US4135601A (en) Boron coated diaphragm for use in a loud speaker
CA1058090A (en) Diaphragms for electroacoustic transducers
TWI539836B (zh) 揚聲器振膜結構及其製造方法
US4344503A (en) Diaphragm for electro-acoustic transducer
CN114697820A (zh) 振膜、发声装置及麦克风组件
KR100592100B1 (ko) 마이크로 스피커의 진동판
JPH0314396B2 (enExample)
JPH03145900A (ja) スピーカー用振動板
JPH0314397B2 (enExample)
JPH03175800A (ja) 圧電型スピーカ
JPS59143499A (ja) スピ−カ−振動板
US4512435A (en) Diaphragm for loudspeakers
JPS61244195A (ja) 音響用振動板
JPH0434873B2 (enExample)
JPH034697A (ja) スピーカ振動板
JP2770277B2 (ja) フィルムコンデンサ
JPS5926160B2 (ja) スピ−カ用振動板
JPS617797A (ja) セラミツク振動板スピ−カ
JP2736480B2 (ja) 電解コンデンサ
JPS60237799A (ja) スピ−カ用振動板
JP3762377B2 (ja) コンデンサ型広帯域マイクロホン
JPH04150197A (ja) スピーカ振動板
CN1040297A (zh) 电声转换器
JPS6111520B2 (enExample)
JPH0454440B2 (enExample)