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US 2010/0301958 A1Published application
Unit, oscillator having unit and electronic apparatus having oscillator
AssigneePiedek Technical Laboratory
InventorHirofumi Kawashima
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AssigneePiedek Technical Laboratory
InventorHirofumi Kawashima
Estimating the term…
A unit comprising a quartz crystal resonator vibratable in a flexural mode and having a base portion including a length less than 0.5 mm, and first and second vibrational arms connected to the base portion, at least one groove being formed in each of two of opposite main surfaces of each of the first and second vibrational arms, and an electrode being disposed on a surface of the at least one groove formed in each of the two of the opposite main surfaces of each of the first and second vibrational arms so that the electrode disposed on the surface of the at least one groove formed in each of the two of the opposite main surfaces of the first vibrational arm has an electrical polarity opposite to an electrical polarity of the electrode disposed on the surface of the at least one groove formed in each of the two of the opposite main surfaces of the second vibrational arm.
A unit comprising a quartz crystal resonator vibratable in a flexural mode and having a base portion including a length less than 0.5 mm, and first and second vibrational arms connected to the base portion, each of the first and second vibrational arms having opposite main surfaces;
An oscillator comprising a unit comprised of a quartz crystal resonator vibratable in a flexural mode and having a base portion including a length less than 0.5 mm, and first and second vibrational arms connected to the base portion, each of the first and second vibrational arms having opposite main surfaces;
An electronic apparatus comprising a display portion;
Dependencies are inferred from the claim text.