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Class Information
Number: 310/344
Name: Electrical generator or motor structure > Non-dynamoelectric > Piezoelectric elements and devices > With temperature modifier and/or gas or vapor atmosphere control > Sealed unit
Description: Subject matter including an airtight housing around the crystal element.










Patents under this class:
1 2 3 4 5 6 7 8 9 10

Patent Number Title Of Patent Date Issued
8710714 Surface acoustic wave resonator for down-hole applications Apr. 29, 2014
8704428 Widening resonator bandwidth using mechanical loading Apr. 22, 2014
8695186 Method for manufacturing piezoelectric vibrator Apr. 15, 2014
8692440 Piezoelectric device and manufacturing method therefor Apr. 8, 2014
8686621 Piezoelectric devices and methods for manufacturing the same Apr. 1, 2014
8667665 Method of manufacturing a microelectromechanical system (MEMS) resonator Mar. 11, 2014
8661650 Method of making an electromechanical personal care device Mar. 4, 2014
8643254 Piezoelectric device with a package including a convex part Feb. 4, 2014
8638178 Methods of testing packaged thin-film piezoelectric-on-semiconductor microelectromechanical resonators having hermetic seals Jan. 28, 2014
8633775 Method of manufacturing piezoelectric vibrator, piezoelectric vibrator, oscillator, electronic equipment and radio-controlled timepiece Jan. 21, 2014
8629601 Piezoelectric oscillator Jan. 14, 2014
8624470 Piezoelectric devices including electrode-less vibrating portions Jan. 7, 2014
8618722 Piezoelectric resonator plate and manufacturing method for piezoelectric resonator plate Dec. 31, 2013
8618721 Method of manufacturing the piezoelectric device and the same Dec. 31, 2013
8618720 Piezoelectric assembly Dec. 31, 2013
8615857 Method of manufacturing piezoelectric vibrators Dec. 31, 2013
8610336 Microelectromechanical resonators having resistive heating elements therein configured to provide frequency tuning through convective heating of resonator bodies Dec. 17, 2013
8610337 Piezoelectric device and method for manufacturing same Dec. 17, 2013
8601656 Method of manufacturing a piezoelectric vibrator Dec. 10, 2013
8604675 Piezoelectric resonator and method of manufacturing piezoelectric resonator Dec. 10, 2013
8587183 Microelectromechanical systems (MEMS) resonators and related apparatus and methods Nov. 19, 2013
8570110 Surface mount type crystal unit Oct. 29, 2013
8569936 Piezoelectric resonator and electrode structure thereof Oct. 29, 2013
8564171 Acoustic wave element and electronic device including the same Oct. 22, 2013
8558433 Metal paste for sealing, hermetic sealing method for piezoelectric element, and piezoelectric device Oct. 15, 2013
8558627 Surface mount crystal oscillator and substrate sheet Oct. 15, 2013
8552805 Piezoelectric vibrator, method of manufacturing piezoelectric vibrator, oscillator, electronic equipment and radio-controlled timepiece Oct. 8, 2013
8552622 Acoustic wave device Oct. 8, 2013
8549717 Methods for manufacturing piezoelectric devices Oct. 8, 2013
8549728 Manufacturing method for vibration body and manufacturing method for vibration actuator Oct. 8, 2013
8541926 Nano/micro electro-mechanical relay Sep. 24, 2013
8541928 Quartz-crystal devices exhibiting reduced crystal impedance Sep. 24, 2013
8542070 Piezoelectric vibrator, oscillator, electronic apparatus, and radio-controlled timepiece Sep. 24, 2013
8531092 Surface-mountable piezoelectric devices including eutectic-bonded packages Sep. 10, 2013
8525600 Temperature-compensated crystal oscillator assembly Sep. 3, 2013
8519601 Crystal device and inspection method of crystal device Aug. 27, 2013
8513862 Surface acoustic wave device with reduced size and thickness Aug. 20, 2013
8505192 Manufacturing method of common mode filter Aug. 13, 2013
8482358 Flexural resonator element, resonator, oscillator, and electronic device Jul. 9, 2013
8476809 Microelectromechanical systems (MEMS) resonators and related apparatus and methods Jul. 2, 2013
8466602 Linear driving device Jun. 18, 2013
8466606 Integration of piezoelectric materials with substrates Jun. 18, 2013
8461969 Dual mode vibrator Jun. 11, 2013
8456065 Stiffness-enhanced surface-mounted piezoelectric devices Jun. 4, 2013
8448312 Method of manufacturing packages, package, piezoelectric, vibrator, and oscillator May. 28, 2013
8446226 Oven controlled crystal oscillator May. 21, 2013
8436514 Acoustic wave device comprising an inter-digital transducer electrode May. 7, 2013
8436515 Piezoelectric vibrator having a piezoelectric vibrating strip and a bonding film with laser irradiation marks May. 7, 2013
8429800 Methods for manufacturing piezoelectric vibrating pieces Apr. 30, 2013
8429808 Method for fabrication an electrical transducer Apr. 30, 2013

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