JPS5229703A - Acoustic parts and manufacturing process - Google Patents

Acoustic parts and manufacturing process

Info

Publication number
JPS5229703A
JPS5229703A JP10558675A JP10558675A JPS5229703A JP S5229703 A JPS5229703 A JP S5229703A JP 10558675 A JP10558675 A JP 10558675A JP 10558675 A JP10558675 A JP 10558675A JP S5229703 A JPS5229703 A JP S5229703A
Authority
JP
Japan
Prior art keywords
manufacturing process
acoustic parts
specific gravity
acoustic
parts
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
JP10558675A
Other languages
Japanese (ja)
Other versions
JPS5911962B2 (en
Inventor
Kazuhiro Sato
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.)
Victor Company of Japan Ltd
Original Assignee
Victor Company of Japan 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 Victor Company of Japan Ltd filed Critical Victor Company of Japan Ltd
Priority to JP10558675A priority Critical patent/JPS5911962B2/en
Publication of JPS5229703A publication Critical patent/JPS5229703A/en
Publication of JPS5911962B2 publication Critical patent/JPS5911962B2/en
Expired legal-status Critical Current

Links

Abstract

PURPOSE: Obtain an acoustic part with small specific gravity and large sound speed by forming a porous aluminium evaporation film having a specific gravity below a predetermined value and which is anode oxidized, on a substarate.
COPYRIGHT: (C)1977,JPO&Japio
JP10558675A 1975-09-02 1975-09-02 Acoustic components and their manufacturing method Expired JPS5911962B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP10558675A JPS5911962B2 (en) 1975-09-02 1975-09-02 Acoustic components and their manufacturing method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP10558675A JPS5911962B2 (en) 1975-09-02 1975-09-02 Acoustic components and their manufacturing method

Publications (2)

Publication Number Publication Date
JPS5229703A true JPS5229703A (en) 1977-03-05
JPS5911962B2 JPS5911962B2 (en) 1984-03-19

Family

ID=14411592

Family Applications (1)

Application Number Title Priority Date Filing Date
JP10558675A Expired JPS5911962B2 (en) 1975-09-02 1975-09-02 Acoustic components and their manufacturing method

Country Status (1)

Country Link
JP (1) JPS5911962B2 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS553549U (en) * 1978-06-20 1980-01-10

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS553549U (en) * 1978-06-20 1980-01-10

Also Published As

Publication number Publication date
JPS5911962B2 (en) 1984-03-19

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