Patent ID: 8368476

Claim:
A resonator element comprising: a base that has a base center, a first base extension and a second base extension, a first resonating arm that extends from the first base extension at a first arm end in a first direction and that is provided at one side of the base center, and a second resonating arm that extends from the second base extension at a second arm end in a second direction opposite to the first direction and that is provided at another side opposite to the one side of the base center, wherein the second arm end and a first middle area of the first resonating arm are arranged on a first line perpendicular to both the first and second directions, the first arm end and a second middle area of the second resonating arm are arranged on a second line parallel to the first line, the first base extension extends in a third direction inclined relative to the second direction and the second line, respectively, and the second base extension extends in a fourth direction inclined relative to the first direction and the first line, respectively.