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
Links
- 238000010586 diagram Methods 0.000 description 3
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005520 electrodynamics Effects 0.000 description 1
- 229920006254 polymer film Polymers 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
Landscapes
- Headphones And Earphones (AREA)
- Piezo-Electric Transducers For Audible Bands (AREA)
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 (US06229276-20010508-P00022.png) | 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 (US06229276-20010508-P00022.png) |
Families Citing this family (3)
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 |
-
1985
- 1985-09-05 JP JP19669585A patent/JPS6257400A/ja active Granted
Also Published As
Publication number | Publication date |
---|---|
JPS6257400A (ja) | 1987-03-13 |
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