JP2005354473A - 超音波トランスデューサ及びこれを用いた超音波スピーカ - Google Patents
超音波トランスデューサ及びこれを用いた超音波スピーカ Download PDFInfo
- Publication number
- JP2005354473A JP2005354473A JP2004173947A JP2004173947A JP2005354473A JP 2005354473 A JP2005354473 A JP 2005354473A JP 2004173947 A JP2004173947 A JP 2004173947A JP 2004173947 A JP2004173947 A JP 2004173947A JP 2005354473 A JP2005354473 A JP 2005354473A
- Authority
- JP
- Japan
- Prior art keywords
- ultrasonic transducer
- pair
- ultrasonic
- reflector
- fixed electrodes
- 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.)
- Pending
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Images
Landscapes
- Transducers For Ultrasonic Waves (AREA)
- Circuit For Audible Band Transducer (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2004173947A JP2005354473A (ja) | 2004-06-11 | 2004-06-11 | 超音波トランスデューサ及びこれを用いた超音波スピーカ |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2004173947A JP2005354473A (ja) | 2004-06-11 | 2004-06-11 | 超音波トランスデューサ及びこれを用いた超音波スピーカ |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JP2005354473A true JP2005354473A (ja) | 2005-12-22 |
| JP2005354473A5 JP2005354473A5 (enrdf_load_stackoverflow) | 2007-08-02 |
Family
ID=35588533
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2004173947A Pending JP2005354473A (ja) | 2004-06-11 | 2004-06-11 | 超音波トランスデューサ及びこれを用いた超音波スピーカ |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2005354473A (enrdf_load_stackoverflow) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009105934A (ja) * | 2008-12-19 | 2009-05-14 | Seiko Epson Corp | 超音波スピーカ、音声信号再生方法、超指向性音響システム |
| JP2009105933A (ja) * | 2008-12-19 | 2009-05-14 | Seiko Epson Corp | 静電型超音波トランスデューサ |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS467879Y1 (enrdf_load_stackoverflow) * | 1970-07-01 | 1971-03-19 | ||
| JPS54102119A (en) * | 1978-01-30 | 1979-08-11 | Toshiba Corp | Production of electrostatic type electro-acoustic transducer |
| JPS61123389A (ja) * | 1984-11-20 | 1986-06-11 | Matsushita Electric Ind Co Ltd | パラメトリツクスピ−カ |
| JPH0746697A (ja) * | 1993-07-30 | 1995-02-14 | Sony Corp | 静電容量型スピーカー用振動板 |
| JPH09284897A (ja) * | 1996-04-17 | 1997-10-31 | Yamaha Corp | 電気音響変換器 |
| JP2002501359A (ja) * | 1998-01-07 | 2002-01-15 | アメリカン・テクノロジー・コーポレーション | 発泡材ステータを備える音響エミッタ |
| WO2003032678A2 (en) * | 2001-10-09 | 2003-04-17 | Frank Joseph Pompei | Ultrasonic transducer for parametric array |
-
2004
- 2004-06-11 JP JP2004173947A patent/JP2005354473A/ja active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS467879Y1 (enrdf_load_stackoverflow) * | 1970-07-01 | 1971-03-19 | ||
| JPS54102119A (en) * | 1978-01-30 | 1979-08-11 | Toshiba Corp | Production of electrostatic type electro-acoustic transducer |
| JPS61123389A (ja) * | 1984-11-20 | 1986-06-11 | Matsushita Electric Ind Co Ltd | パラメトリツクスピ−カ |
| JPH0746697A (ja) * | 1993-07-30 | 1995-02-14 | Sony Corp | 静電容量型スピーカー用振動板 |
| JPH09284897A (ja) * | 1996-04-17 | 1997-10-31 | Yamaha Corp | 電気音響変換器 |
| JP2002501359A (ja) * | 1998-01-07 | 2002-01-15 | アメリカン・テクノロジー・コーポレーション | 発泡材ステータを備える音響エミッタ |
| WO2003032678A2 (en) * | 2001-10-09 | 2003-04-17 | Frank Joseph Pompei | Ultrasonic transducer for parametric array |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009105934A (ja) * | 2008-12-19 | 2009-05-14 | Seiko Epson Corp | 超音波スピーカ、音声信号再生方法、超指向性音響システム |
| JP2009105933A (ja) * | 2008-12-19 | 2009-05-14 | Seiko Epson Corp | 静電型超音波トランスデューサ |
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