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:
Sep. 19, 1995
Filed:
Jul. 30, 1993
Fumihiko Nakazawa, Kawasaki, JP;
Masao Shibayama, Kawasaki, JP;
Tatsumi Ohtsuka, Kawasaki, JP;
Katsuya Irie, Kawasaki, JP;
Kimikazu Itoh, Kawasaki, JP;
Mituyoshi Seino, Kawasaki, JP;
Toshiaki Tanaka, Kawasaki, JP;
Akihiko Sakaguchi, Kawasaki, JP;
Genichi Matsuda, Kawasaki, JP;
Fujitsu Limited, Kanagawa, JP;
Abstract
A touch panel to detect a coordinate of an arbitrary position where pressure is applied. The touch panel includes a substrate, a resistor layer provided on the substrate, a spacer layer made of an insulator material, a conductor layer confronting the resistor layer via the spacer layer, a plurality of point electrodes provided on the resistor layer at a peripheral part of the resistor layer along each side of the resistor layer, and a plurality of switching elements provided above the substrate and electrically coupled to the point electrodes for supplying a voltage to the point electrodes. The spacer layer is made up of a plurality of spacer pieces which are arranged so that an electrical contact is made between the conductor layer and the resistor layer when a pressure is applied at an arbitrary position on the conductor layer.