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:
May. 14, 1991
Filed:
Apr. 13, 1990
Jiro Terada, Osaka, JP;
Kazumitsu Ueda, Osaka, JP;
Hiroshi Takenaka, Ikoma, JP;
Mikio Nozu, Yamatokoriyama, JP;
Hiroshi Senda, Osaka, JP;
Yasuhito Osada, Kyoto, JP;
Toshihiko Ichinose, Osaka, JP;
Takahiro Manabe, Osaka, JP;
Abstract
An angular rate sensor has a tuning fork structure composed of vibratory components. The vibratory components include piezoelectric drive and detection elements which are joined together into a tuning fork configuration, the drive and detection elements lying in respective orthogonal planes. Leads are electrically connected to the drive and detection elements, and lead terminals are electrically connected to the leads, respectively. The vibratory components are covered with a coating which is of a material having a lower elasticity than the elasticities of the vibratory components. The coating on the vibratory components effectively reduces the propagation of unwanted vibrations, thereby reducing output signal drifts.