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. 01, 2014
Filed:
Apr. 21, 2009
Eiji Kanda, Suwa, JP;
Yasushi Tsuchiya, Fujimi-machi, JP;
Tokuro Ozawa, Suwa, JP;
Toshiharu Matsushima, Tottori, JP;
Eiji Kanda, Suwa, JP;
Yasushi Tsuchiya, Fujimi-machi, JP;
Tokuro Ozawa, Suwa, JP;
Toshiharu Matsushima, Tottori, JP;
Seiko Epson Corporation, Tokyo, JP;
Abstract
A sensing circuit having a first substrate, a second substrate, a layer of dielectric material, a first electrode, a second electrode and an electrostatic capacitance detection unit is provided. The second substrate faces the first substrate. The dielectric material is held between the first substrate and the second substrate. The first electrode and the second electrode are arranged between the dielectric material and the first substrate. The electrostatic capacitance detection unit is configured to produce a detection signal having an amplitude according to a value of capacitance formed between the first electrode and the second electrode through the dielectric material.