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:
Jan. 08, 2002
Filed:
Sep. 01, 1999
Applicant:
Inventors:
Assignee:
Kabushiki Kaisha Tokai Rika Denki Seisakusho, Aichi, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B60R 2/132 ; G01P 1/500 ;
U.S. Cl.
CPC ...
B60R 2/132 ; G01P 1/500 ;
Abstract
A small acceleration switch adapted to switch between ON and OFF states depending upon the magnitude of acceleration applied to the switch. The acceleration switch includes a first contact formed on a substrate and a movable part formed on a semiconductor chip by surface micromachining. The movable part includes a second contact. When the acceleration is equal to or greater than a predetermined value, the movable part moves and the second contact comes into contact with the first contact.