ClassID:

220734

H03H9/21 - page 2 - CPC Classification

Classification description:

Networks comprising electromechanical or electro-acoustic devices; Electromechanical resonators; Constructional features of resonators consisting of piezo-electric or electrostrictive material Crystal tuning forks

Recent Application in this class:
#301
20070228891
2007-10-04

Piezoelectric device

#302
20070227333
2007-10-04

Tuning fork vibration device and method for manufacturing the same

#303
20070188055
2007-08-16

Piezoelectric resonator element and piezoelectric device

#304
20070188045
2007-08-16

Oscillator device and method for manufacturing the device

#305
20070182291
2007-08-09

Thin film tuning-fork type inflection resonator and electric signal processing element

#306
20070170819
2007-07-26

Hermetically sealed structure, piezoelectric device and improvement of method for manufacturing the same

#307
20070085615
2007-04-19

Tuning fork shaped crystal oscillator and method of fabrication thereof

#308
20070046150
2007-03-01

Surface mount type piezoelectric vibrator and its fabricating method, oscillator, electronic apparatus and radio wave timepiece

#309
20070044565
2007-03-01

Piezoelectric vibrator, oscillator, electronic part, electronic apparatus, method of fabricating piezoelectric vibrator and method of fabricating electronic part

#310
20070040470
2007-02-22

Tuning fork type crystal oscillator with angular velocity detection capability

#311
20070024163
2007-02-01

Piezoelectric vibrating reed and piezoelectric device

#312
20060284694
2006-12-21

Electronic apparatus having display portion and oscillator and manufacturing method of the same

#313
20060279180
2006-12-14

Resonator piece, resonator, oscillator and electronic device

#314
20060279179
2006-12-14

Small-sized piezoelectric resonator

#315
20060279176
2006-12-14

Small-sized piezoelectric resonator

#316
20060250051
2006-11-09

Process of making a tuning fork type crystal component

#317
20060214749
2006-09-28

Piezoelectric vibration piece and piezoelectric device

#318
20060087206
2006-04-27

Tuning-fork-type piezoelectric vibrating reed and tuning-fork-type piezoelectric vibrator

#319
20060082261
2006-04-20

Piezoelectric resonator element and piezoelectric device

#320
20060066185
2006-03-30

Piezoelectric resonator element and piezoelectric device

#321
20050285483
2005-12-29

Tuning fork resonator, tuning fork unit, and method for producing tuning fork resonator

#322
20050225199
2005-10-13

Frequency regulating method for tuning fork type vibrator and tuning fork type vibrator frequency-regulated by the method

#323
20050206277
2005-09-22

Tuning-fork-type vibrating reed, piezoelectric vibrator, angular-rate sensor, and electronic device

#324
20050140252
2005-06-30

Tuning fork type piezoelectric resonator element and method for producing a tuning fork type piezoelectric resonator

#325
20050134150
2005-06-23

Piezo-electric resonator and manufacturing method thereof

#326
20050122006
2005-06-09

Tuning fork type crystal component for angular velocity sensor and manufacturing method thereof

#327
20050116587
2005-06-02

Tuning fork-type crystal vibrator

#328
20050116586
2005-06-02

Piezoelectric resonator element, piezoelectric device, method of manufacturing the same, cellular phone device utilizing piezoelectric device, and electronic equipment utilizing piezoelectric device

#329
20050115038
2005-06-02

Method for manufacturing a piezoelectric resonator

#330
20050104480
2005-05-19

Piezoelectric device, cellular phone system using the piezoelectric device, and electronic equipment using the piezoelectric device

#331
20050088250
2005-04-28

Tuning fork shaped crystal oscillator and method of fabrication thereof

#332
20050062368
2005-03-24

Tuning-fork type piezo-oscillator piece and mounting method thereof

#333
20050040737
2005-02-24

Piezoelectric vibration piece, piezoelectric device using piezoelectric vibration piece, portable phone unit using piezoelectric device, and electronic equipment using piezoelectric device

#334
20050017604
2005-01-27

Tuning-fork-type piezoelectric vibrating reed and tuning-fork-type piezoelectric vibrator

#335
20050012559
2005-01-20

Piezoelectric oscillator, manufacturing method therefor, mobile phone apparatus using piezoelectric oscillator, and electronic apparatus using piezoelectric oscillator

#336
20050000934
2005-01-06

Method for manufacturing resonant device

#337
18449089
2025-05-13

Techniques for adding compensating material(s) in semiconductor devices

#338
17901748
2023-09-19

Temperature stable MEMS resonator

#339
17363386
2022-10-11

Temperature stable MEMS resonator

#340
14863337
2017-01-17

Temperature stable MEMS resonator