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:
Dec. 05, 1989
Filed:
Jun. 20, 1988
Yoshimoto Odagawa, Chiba, JP;
Yasushi Yanagisawa, Chiba, JP;
TDK Corporation, Tokyo, JP;
Abstract
There is proposed a tilt sensor in which a first permanent magnet having a magnetic fluid adhered to its surface is housed in a nonmagnetic case, a magnetic sensing element is arranged outside a bottom portion of the case, and a second permanent magnet is arranged so as to surround the magnetic sensing element and have polarity directions opposite to those of the first permanent magnet. When the case is tilted at an angle larger than a predetermined angle, the first permanent magnet is instantaneously moved, and the magnet sensing element detects changes in magnetism, thereby detecting a tilt of the case.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile