JPS4944658B1 - - Google Patents
Info
- Publication number
- JPS4944658B1 JPS4944658B1 JP45074611A JP7461170A JPS4944658B1 JP S4944658 B1 JPS4944658 B1 JP S4944658B1 JP 45074611 A JP45074611 A JP 45074611A JP 7461170 A JP7461170 A JP 7461170A JP S4944658 B1 JPS4944658 B1 JP S4944658B1
- Authority
- JP
- Japan
- 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
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R17/00—Piezoelectric transducers; Electrostrictive transducers
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
- H03H9/00—Networks comprising electromechanical or electro-acoustic elements; Electromechanical resonators
- H03H9/02—Details
- H03H9/05—Holders or supports
- H03H9/09—Elastic or damping supports
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R31/00—Apparatus or processes specially adapted for the manufacture of transducers or diaphragms therefor
- H04R31/003—Apparatus or processes specially adapted for the manufacture of transducers or diaphragms therefor for diaphragms or their outer suspension
Landscapes
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Manufacturing & Machinery (AREA)
- Piezo-Electric Transducers For Audible Bands (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US86021869A | 1969-09-23 | 1969-09-23 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS4944658B1 true JPS4944658B1 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) | 1974-11-29 |
Family
ID=25332746
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP45074611A Pending JPS4944658B1 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) | 1969-09-23 | 1970-08-27 |
Country Status (9)
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6367448U (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) * | 1986-06-27 | 1988-05-06 |
Families Citing this family (18)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA1006969A (en) * | 1973-07-26 | 1977-03-15 | Lyle E. Shoot | Piezoelectric transducer |
| US3948089A (en) * | 1973-10-12 | 1976-04-06 | Westinghouse Electric Corporation | Strain gauge apparatus |
| FR2282677A1 (fr) * | 1974-08-22 | 1976-03-19 | Tretiakoff Oleg | Calculatrice electronique de poche pour aveugles |
| JPS51130216A (en) * | 1975-05-07 | 1976-11-12 | Matsushita Electric Ind Co Ltd | Electromechanical transducer |
| JPS5254419A (en) * | 1975-10-29 | 1977-05-02 | Pioneer Electronic Corp | Electroacoustic transducer |
| DE3169146D1 (en) * | 1980-11-07 | 1985-04-04 | Hitachi Ltd | Piezoelectric ceramic transducer |
| GB2155731A (en) * | 1983-11-01 | 1985-09-25 | John David Gregson | Ultrasonic transducers |
| US4675960A (en) * | 1985-12-30 | 1987-06-30 | Motorola, Inc. | Method of manufacturing an electrically variable piezoelectric hybrid capacitor |
| JP3120260B2 (ja) * | 1992-12-26 | 2000-12-25 | 日本碍子株式会社 | 圧電／電歪膜型素子 |
| US5471721A (en) * | 1993-02-23 | 1995-12-05 | Research Corporation Technologies, Inc. | Method for making monolithic prestressed ceramic devices |
| US5632841A (en) * | 1995-04-04 | 1997-05-27 | The United States Of America As Represented By The Administrator Of The National Aeronautics And Space Administration | Thin layer composite unimorph ferroelectric driver and sensor |
| JP3768789B2 (ja) * | 2000-09-07 | 2006-04-19 | アルプス電気株式会社 | 超音波振動子及びウエット処理用ノズル並びにウエット処理装置 |
| EP1229278B1 (de) * | 2001-01-31 | 2005-10-12 | Caterpillar Inc. | Piezoelektrischer Aktor |
| US7681290B2 (en) * | 2006-10-20 | 2010-03-23 | The Boeing Company | Piezoelectric bimorph beam manufacturing method |
| DE102008011414A1 (de) * | 2008-02-27 | 2009-09-10 | Continental Automotive Gmbh | Verfahren zum Polarisieren einer Piezokeramik |
| US9769570B2 (en) | 2015-03-31 | 2017-09-19 | Bose Corporation | Acoustic diaphragm |
| US9743190B2 (en) | 2015-03-31 | 2017-08-22 | Bose Corporation | Acoustic diaphragm |
| CN109935223B (zh) * | 2017-12-19 | 2021-04-20 | 北京长城电子装备有限责任公司 | 一种超小尺寸低频发射换能器 |
-
1969
- 1969-09-23 US US860218A patent/US3588552A/en not_active Expired - Lifetime
-
1970
- 1970-08-14 DK DK418470AA patent/DK130560B/da unknown
- 1970-08-21 GB GB40319/70A patent/GB1284966A/en not_active Expired
- 1970-08-27 JP JP45074611A patent/JPS4944658B1/ja active Pending
- 1970-09-03 IL IL35230A patent/IL35230A/xx unknown
- 1970-09-21 ES ES383842A patent/ES383842A1/es not_active Expired
- 1970-09-22 FR FR707034351A patent/FR2062964B3/fr not_active Expired
- 1970-09-23 NL NL7014052A patent/NL7014052A/xx not_active Application Discontinuation
- 1970-09-23 DE DE19702046901 patent/DE2046901B2/de active Pending
- 1970-09-23 DE DE7035291U patent/DE7035291U/de not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6367448U (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) * | 1986-06-27 | 1988-05-06 |
Also Published As
| Publication number | Publication date |
|---|---|
| DK130560C (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) | 1975-08-18 |
| IL35230A (en) | 1974-03-14 |
| ES383842A1 (es) | 1973-03-01 |
| DE7035291U (de) | 1971-02-25 |
| DE2046901A1 (de) | 1971-04-22 |
| IL35230A0 (en) | 1970-11-30 |
| FR2062964A7 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) | 1971-07-02 |
| US3588552A (en) | 1971-06-28 |
| FR2062964B3 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) | 1973-06-08 |
| NL7014052A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) | 1971-03-25 |
| DE2046901B2 (de) | 1972-02-17 |
| GB1284966A (en) | 1972-08-09 |
| DK130560B (da) | 1975-03-03 |