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:
Jul. 02, 2013
Filed:
Jun. 25, 2008
Atsushi Kazama, Kumagaya, JP;
Masakatsu Saitoh, Mohka, JP;
Ryoji Okada, Kumagaya, JP;
Takanori Aono, Kumagaya, JP;
Atsushi Kazama, Kumagaya, JP;
Masakatsu Saitoh, Mohka, JP;
Ryoji Okada, Kumagaya, JP;
Takanori Aono, Kumagaya, JP;
Hitachi Metals, Ltd., Tokyo, JP;
Abstract
An acceleration sensor having a support frame, a weight supported within the support frame via flexible beams, semiconductor piezoresistance elements provided on the beams, and wiring interconnecting the piezoresistance elements. The acceleration sensor detects acceleration from changes in resistance of the piezoresistance elements. Stress damping sections are provided on those portions of the beams which exclude the portions where the piezoresistance elements are provided. Each stress damping section is symmetrical with respect to the point of intersection between the length center line of the beam and the width center line of the beam.