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:
Aug. 22, 2006
Filed:
Feb. 14, 2005
Applicants:
Hiroshi Tanaka, Yokohama, JP;
Masanori Yachi, Yokohama, JP;
Inventors:
Hiroshi Tanaka, Yokohama, JP;
Masanori Yachi, Yokohama, JP;
Assignee:
Fujitsu Media Devices Limited, Yokohama, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G01P 15/09 (2006.01);
U.S. Cl.
CPC ...
Abstract
A piezoelectric vibratorthat generates an electric charge according to a stress and a weightprovided on the piezoelectric vibratorare included. The piezoelectric vibratorhas multiple pairs of sensing electrodesand, andand, and the sensing electrodesand, andandare respectively connected in parallel so that capacitances Cdand Cdmade of the sensing electrodes may be connected in parallel. It is thus possible to double the charge sensitivity with keeping the voltage sensitivity.