JPH0567120B2 - - Google Patents
Info
- Publication number
- JPH0567120B2 JPH0567120B2 JP9831187A JP9831187A JPH0567120B2 JP H0567120 B2 JPH0567120 B2 JP H0567120B2 JP 9831187 A JP9831187 A JP 9831187A JP 9831187 A JP9831187 A JP 9831187A JP H0567120 B2 JPH0567120 B2 JP H0567120B2
- Authority
- JP
- Japan
- Prior art keywords
- diaphragm
- piezoelectric
- sound pressure
- piezoelectric speaker
- sounding body
- 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 - Fee Related
Links
- 239000011347 resin Substances 0.000 claims description 11
- 229920005989 resin Polymers 0.000 claims description 11
- 239000000463 material Substances 0.000 claims description 7
- 229920006248 expandable polystyrene Polymers 0.000 claims description 4
- 239000004698 Polyethylene Substances 0.000 claims description 3
- -1 polyethylene Polymers 0.000 claims description 3
- 229920000573 polyethylene Polymers 0.000 claims description 3
- 229920001577 copolymer Polymers 0.000 claims description 2
- 239000002184 metal Substances 0.000 description 6
- 239000006260 foam Substances 0.000 description 2
- JOYRKODLDBILNP-UHFFFAOYSA-N Ethyl urethane Chemical compound CCOC(N)=O JOYRKODLDBILNP-UHFFFAOYSA-N 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 239000010985 leather Substances 0.000 description 1
- 239000005060 rubber Substances 0.000 description 1
Landscapes
- Piezo-Electric Transducers For Audible Bands (AREA)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP9831187A JPS63263900A (ja) | 1987-04-21 | 1987-04-21 | 圧電スピ−カ |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP9831187A JPS63263900A (ja) | 1987-04-21 | 1987-04-21 | 圧電スピ−カ |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS63263900A JPS63263900A (ja) | 1988-10-31 |
JPH0567120B2 true JPH0567120B2 (en]) | 1993-09-24 |
Family
ID=14216378
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP9831187A Granted JPS63263900A (ja) | 1987-04-21 | 1987-04-21 | 圧電スピ−カ |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS63263900A (en]) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6285770B1 (en) * | 1995-09-02 | 2001-09-04 | New Transducers Limited | Noticeboards incorporating loudspeakers |
US6396197B1 (en) * | 1995-12-22 | 2002-05-28 | Speaker Acquisition Sub, A Cayman Island Corporation | Piezoelectric speaker |
TW511391B (en) * | 2000-01-24 | 2002-11-21 | New Transducers Ltd | Transducer |
-
1987
- 1987-04-21 JP JP9831187A patent/JPS63263900A/ja active Granted
Also Published As
Publication number | Publication date |
---|---|
JPS63263900A (ja) | 1988-10-31 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
LAPS | Cancellation because of no payment of annual fees |