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:
Feb. 17, 1998
Filed:
Nov. 28, 1995
Applicant:
Inventors:
Takehiro Watarai, Nagoya, JP;
Satoshi Hayashi, Kuwana, JP;
Kenzi Kato, Okazaki, JP;
Kazuhiko Miura, Yokkaichi, JP;
Tomoo Kawase, Nagoya, JP;
Yoshinobu Takeuchi, Kuwana, JP;
Assignee:
Nippondenso Co., Ltd, , JP;
Primary Examiner:
Int. Cl.
CPC ...
H01L / ;
U.S. Cl.
CPC ...
310316 ; 310319 ; 310324 ; 310366 ; 310370 ; 310348 ; 310353 ; 73505 ;
Abstract
An angular velocity detector includes vibrator made of piezoelectric material and having a pair of arms. A pair of driving electrodes are attached to the arms in order to generate vibrations in the arms. A pair of detecting electrodes, which are attached to the arms, detect the vibrations of the arms. Therefore, the pair of driving electrodes can cause the arms to vibrate uniformly and stably, so that a S/N ratio of the angular velocity sensor can be improved.