JPH0160999B2 - - Google Patents

Info

Publication number
JPH0160999B2
JPH0160999B2 JP19669585A JP19669585A JPH0160999B2 JP H0160999 B2 JPH0160999 B2 JP H0160999B2 JP 19669585 A JP19669585 A JP 19669585A JP 19669585 A JP19669585 A JP 19669585A JP H0160999 B2 JPH0160999 B2 JP H0160999B2
Authority
JP
Japan
Prior art keywords
radius
piezoelectric film
curvature
sound pressure
headphone
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
JP19669585A
Other languages
English (en)
Japanese (ja)
Other versions
JPS6257400A (ja
Inventor
Tomoya Atsumi
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.)
Nippon Atsudenki KK
Original Assignee
Nippon Atsudenki KK
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 Nippon Atsudenki KK filed Critical Nippon Atsudenki KK
Priority to JP19669585A priority Critical patent/JPS6257400A/ja
Publication of JPS6257400A publication Critical patent/JPS6257400A/ja
Publication of JPH0160999B2 publication Critical patent/JPH0160999B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Piezo-Electric Transducers For Audible Bands (AREA)
  • Headphones And Earphones (AREA)
JP19669585A 1985-09-05 1985-09-05 圧電型ヘツドホン Granted JPS6257400A (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP19669585A JPS6257400A (ja) 1985-09-05 1985-09-05 圧電型ヘツドホン

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP19669585A JPS6257400A (ja) 1985-09-05 1985-09-05 圧電型ヘツドホン

Publications (2)

Publication Number Publication Date
JPS6257400A JPS6257400A (ja) 1987-03-13
JPH0160999B2 true JPH0160999B2 (enrdf_load_stackoverflow) 1989-12-26

Family

ID=16362049

Family Applications (1)

Application Number Title Priority Date Filing Date
JP19669585A Granted JPS6257400A (ja) 1985-09-05 1985-09-05 圧電型ヘツドホン

Country Status (1)

Country Link
JP (1) JPS6257400A (enrdf_load_stackoverflow)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH06206086A (ja) * 1993-01-08 1994-07-26 Nippon Steel Corp 排水の生物学的処理方法及び微生物の馴養方法
JP2693099B2 (ja) * 1993-01-20 1997-12-17 新日本製鐵株式会社 生物学的処理方法および微生物の馴養方法
JP2014212552A (ja) * 2014-06-24 2014-11-13 国立大学法人九州工業大学 スピーカ

Also Published As

Publication number Publication date
JPS6257400A (ja) 1987-03-13

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