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:
Oct. 06, 2015
Filed:
Jan. 06, 2010
Ryuta Araki, Takarazuka, JP;
Takashi Ikeda, Kaizuka, JP;
Hiroshi Nishida, Takaishi, JP;
Takafumi Moriguchi, Nishinomiya, JP;
Yasuyuki Hirata, Kobe, JP;
Ryuta Araki, Takarazuka, JP;
Takashi Ikeda, Kaizuka, JP;
Hiroshi Nishida, Takaishi, JP;
Takafumi Moriguchi, Nishinomiya, JP;
Yasuyuki Hirata, Kobe, JP;
SUMITOMO PRECISION PRODUCTS Co., Ltd., Amagasaki-shi, JP;
Abstract
A vibratory gyro which is provided with a ring-shaped vibrating body, leg portions flexibly supporting the ring-shaped vibrating body, a plurality of electrodes formed by having a piezoelectric film sandwiched between an upper-layer metallic film and a lower-layer metallic film in the thickness direction, and a fixed potential electrode. The plurality of electrodes include a bank of driving electrodes for exciting primary vibration, detection electrodes for detecting secondary vibration, and suppression electrodes for suppressing the secondary vibration on the basis of a voltage signal from the detection electrodes. The driving electrodes, the detection electrodes and the suppression electrodes are disposed in the region from an outer peripheral edge of the ring-shaped vibrating body to a vicinity of the outer peripheral edge and/or a region from an inner peripheral edge thereof to a vicinity of the inner peripheral edge.