![]() H04R1/20- Arrangements for obtaining desired frequency or directional characteristics.H04R1/00- Details of transducers, loudspeakers or microphones.adapted to produce maximum output at a predetermined frequency H04R17/00- Piezo-electric transducers Electrostrictive transducers.H04R- LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS DEAF-AID SETS PUBLIC ADDRESS SYSTEMS.229920001707 polybutylene terephthalate Polymers 0.000 description 1.229910052451 lead zirconate titanate Inorganic materials 0.000 description 1.HFGPZNIAWCZYJU-UHFFFAOYSA-N 0.000 description 1 HFGPZNIAWCZYJU-UHFFFAOYSA-N Lead zirconate titanate Chemical compound.229920000122 Acrylonitrile butadiene styrene Polymers 0.000 description 1.239000000057 synthetic resin Substances 0.000 description 3. ![]() 230000005540 biological transmission Effects 0.000 description 10.239000000463 material Substances 0.000 claims description 3.239000000470 constituent Substances 0.000 claims description 3. ![]() Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.) Filing date Publication date Application filed by TDK Corp filed Critical TDK Corp Priority to JP2012211202A priority Critical patent/JP5578218B2/en Priority to US14/031,724 priority patent/US9055373B2/en Priority to CN201310449823.8A priority patent/CN103686559B/en Publication of JP2014066819A publication Critical patent/JP2014066819A/en Application granted granted Critical Publication of JP5578218B2 publication Critical patent/JP5578218B2/en Status Active legal-status Critical Current Anticipated expiration legal-status Critical Links Original Assignee TDK Corp Priority date (The priority date is an assumption and is not a legal conclusion. ![]() Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.) ( en Inventor 薫 木嶋 晃 佐藤 Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.) Active Application number JP2012211202A Other languages Japanese ( ja) Trending Questions What is the 4th element in the periodic table of elements? A teacher walks into the Classroom and says If only Yesterday was Tomorrow Today would have been a Saturday Which Day did the Teacher make this Statement? What happened to Scott zolak's eye? What is a zooraffa? What color does blue and green and pink make when mixed together? What is the difference between Population and sample? Is there any way to earn money on ? What was the forerunner to the VW? How to make Money Online? How do you make your pocket emo happy? Where on VMPF do you find your SSGT test scores? What is half of 5 ft 2 in? What is a non example of the sun? What city is 61 degrees north latitude and 150 degrees west longitude? In which month do monkeys play baseball? What capital city is near 20 degrees North latitude and 100 degrees west longitude? Cuantos pies cuadrados mide una escuadra cuadrada? Why did oslo go to the we sled and sleigh auction? How many time zones would you cross going from the east coast to California? What is half of 2.Download PDF Info Publication number JP5578218B2 JP5578218B2 JP2012211202A JP2012211202A JP5578218B2 JP 5578218 B2 JP5578218 B2 JP 5578218B2 JP 2012211202 A JP2012211202 A JP 2012211202A JP 2012211202 A JP2012211202 A JP 2012211202A JP 5578218 B2 JP5578218 B2 JP 5578218B2 Authority JP Japan Prior art keywords piezoelectric sounder piezoelectric sounder case resonance Prior art date Legal status (The legal status is an assumption and is not a legal conclusion. ![]()
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