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. 08, 2014
Filed:
May. 24, 2012
Applicant:
Sadashi Shimoda, Chiba, JP;
Inventor:
Sadashi Shimoda, Chiba, JP;
Assignee:
Seiko Instruments Inc., , JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01H 35/02 (2006.01);
U.S. Cl.
CPC ...
Abstract
An acceleration switch has a mass body having a space inside, and a counter electrode provided in the space of the mass body. An arc-shaped beam surrounds and supports the mass body. The acceleration sensitivity threshold of the acceleration switch is determined by a cut portion in the mass body or by the area of the top surface of the mass body. In this manner, a plurality of acceleration switches each having a single acceleration sensitivity threshold, for example, in steps of 0.2 G, can be prepared.