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. 26, 2006
Filed:
May. 11, 2004
Akihiro Okushima, Aichi, JP;
Hiroyuki Sueyasu, Kasugai, JP;
Keiichi Nagayama, Aichi, JP;
Yukinori Kurumado, Nagoya, JP;
Akihiro Okushima, Aichi, JP;
Hiroyuki Sueyasu, Kasugai, JP;
Keiichi Nagayama, Aichi, JP;
Yukinori Kurumado, Nagoya, JP;
OMRON Corporation, Kyoto, JP;
Abstract
An object detection sensor wherein a detection electrode (electrode connected with a detection circuit via a conductor) is not exposed from a surface and an input signal is scarcely reduced when a contact area is small, which is capable of reliably detecting a contact thereof with an object in a manner substantially the same as that in the case of a large contact area even when the contact area is small is provided. The object detection sensor is provided with a sensor case made from an insulating material, a detection electrode (electrode A) disposed on an inner surface of the sensor case, a touch electrode (touch electrode A) disposed at a position opposed to the detection electrode on an outer surface of the sensor case and capacitance-coupled to the detection electrode, and a detection circuit which is connected to the detection electrode and detects a contact of an object with the touch electrode based on a change in electrostatic capacitance between the detection electrode and the ground to output a detection signal.