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. 01, 2000
Filed:
Jun. 05, 1998
Applicant:
Inventors:
Yasushi Matsuhiro, Nukata-gun, JP;
Takeshi Ito, Okazaki, JP;
Takayuki Ishikawa, Anjo, JP;
Yoshimi Yoshino, Anjo, JP;
Assignees:
Denso Corporation, Kariya, JP;
Nippon Soken, Nishio, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01P / ;
U.S. Cl.
CPC ...
7350412 ;
Abstract
The output of a synchronous detector is made precise by reducing the offset included in the outputs of detecting piezoelectric elements. This is carried out by applying one y-axis direction exciting force to one movable piece from one pair of driving piezoelectric elements and another y-axis direction exciting force to another movable piece from another pair of driving piezoelectric elements.