The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Dec. 30, 2003
Filed:
Jun. 14, 2001
Nobuyuki Ishitoko, Moriyama, JP;
Masato Koike, Nakaniikawa-gun, JP;
Murata Manufacturing Co., Ltd., Kyoto, JP;
Abstract
In order to provide a vibrating gyroscope in which variations in the angular-velocity detection sensitivity are not likely to occur even when sharp temperature changes occur, a vibrator for a vibrating gyroscope includes, on one main surface, a first detection electrode and a second detection electrode, which output a signal containing an angular-velocity signal, wherein a groove having a predetermined depth is provided between the first detection electrode and the second detection electrode. As for a vibrator for a vibrating gyroscope of the present invention, since the difference between the resonance frequency and the anti-resonance frequency in a bending vibration mode in the driving direction becomes closer to the difference between the resonance frequency and the anti-resonance frequency in a bending vibration mode in the detection direction, variations in the angular-velocity detection sensitivity are not likely to occur even when sharp temperature changes are given.