PIEZOELECTRIC VIBRATION PIECE, PIEZOELECTRIC VIBRATOR, OSCILLATOR, AND ELECTRONIC EQUIPMENT AND RADIO WAVE CLOCK

摘要

PROBLEM TO BE SOLVED: To provide a compact piezoelectric vibration piece that can suppress a vibration leak, a piezoelectric vibrator having the piezoelectric vibration piece, an oscillator, and electronic equipment and a radio wave clock.

SOLUTION: Recessed parts 41 and 42 which are open only on both side surfaces 43 and 44 of a base part 12 of the piezoelectric vibration piece 4 are formed on both the side surfaces.

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