JPH0568159B2 - - Google Patents
Info
- Publication number
- JPH0568159B2 JPH0568159B2 JP28994187A JP28994187A JPH0568159B2 JP H0568159 B2 JPH0568159 B2 JP H0568159B2 JP 28994187 A JP28994187 A JP 28994187A JP 28994187 A JP28994187 A JP 28994187A JP H0568159 B2 JPH0568159 B2 JP H0568159B2
- Authority
- JP
- Japan
- Prior art keywords
- piezoelectric
- diaphragm
- metal plate
- sounding body
- sound pressure
- 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
- 239000002184 metal Substances 0.000 claims description 36
- 239000006096 absorbing agent Substances 0.000 claims description 21
- 239000011347 resin Substances 0.000 claims description 13
- 229920005989 resin Polymers 0.000 claims description 13
- 239000000463 material Substances 0.000 claims description 12
- 230000002093 peripheral effect Effects 0.000 claims description 10
- 230000000694 effects Effects 0.000 description 4
- 239000004698 Polyethylene Substances 0.000 description 2
- 230000006866 deterioration Effects 0.000 description 2
- 229920006248 expandable polystyrene Polymers 0.000 description 2
- -1 polyethylene Polymers 0.000 description 2
- 229920000573 polyethylene Polymers 0.000 description 2
- 239000005060 rubber Substances 0.000 description 2
- JOYRKODLDBILNP-UHFFFAOYSA-N Ethyl urethane Chemical compound CCOC(N)=O JOYRKODLDBILNP-UHFFFAOYSA-N 0.000 description 1
- 229920001577 copolymer Polymers 0.000 description 1
- 239000004794 expanded polystyrene Substances 0.000 description 1
- 239000006260 foam Substances 0.000 description 1
- 239000006261 foam material Substances 0.000 description 1
- 239000010985 leather Substances 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 238000010248 power generation Methods 0.000 description 1
Landscapes
- Piezo-Electric Transducers For Audible Bands (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP28994187A JPH01130699A (ja) | 1987-11-17 | 1987-11-17 | 圧電スピーカ |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP28994187A JPH01130699A (ja) | 1987-11-17 | 1987-11-17 | 圧電スピーカ |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH01130699A JPH01130699A (ja) | 1989-05-23 |
| JPH0568159B2 true JPH0568159B2 (en]) | 1993-09-28 |
Family
ID=17749724
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP28994187A Granted JPH01130699A (ja) | 1987-11-17 | 1987-11-17 | 圧電スピーカ |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH01130699A (en]) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08204798A (ja) * | 1995-01-25 | 1996-08-09 | Jinsei Yamaguchi | ディスプレイ電話機 |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0423396U (en]) * | 1990-06-18 | 1992-02-26 | ||
| US6396197B1 (en) * | 1995-12-22 | 2002-05-28 | Speaker Acquisition Sub, A Cayman Island Corporation | Piezoelectric speaker |
| US6266427B1 (en) * | 1998-06-19 | 2001-07-24 | Mcdonnell Douglas Corporation | Damped structural panel and method of making same |
| JP4231879B2 (ja) * | 2006-07-20 | 2009-03-04 | ホシデン株式会社 | 圧電型電気音響変換器 |
| JP5440422B2 (ja) * | 2010-06-30 | 2014-03-12 | 日本電気株式会社 | 発振装置 |
| JP6419037B2 (ja) * | 2015-07-29 | 2018-11-07 | 京セラ株式会社 | 音響発生器 |
-
1987
- 1987-11-17 JP JP28994187A patent/JPH01130699A/ja active Granted
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08204798A (ja) * | 1995-01-25 | 1996-08-09 | Jinsei Yamaguchi | ディスプレイ電話機 |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH01130699A (ja) | 1989-05-23 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| LAPS | Cancellation because of no payment of annual fees |