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:
Mar. 26, 2002
Filed:
Jan. 15, 1997
Pascal Coudray, La Chapelle des Fougeretz, FR;
Marie-Hélène Froger, Chateaugiron, FR;
Christophe Truffaut, Rennes, FR;
Canon Kabushiki Kaisha, Tokyo, JP;
Abstract
In order to determine a distribution of product present in a reservoir ( ), particularly a distribution of ink in the reservoir of an image transfer device, a device includes electrodes ( ) disposed in contact with the product in the reservoir, a circuit ( ) for successively supplying the electrodes with an excitation signal (SE) causing an electromagnetic radiation from the product, a receiving antenna ( ) for sensing the electromagnetic radiation caused by the respective supplying of the electrodes, and a circuit ( ) for processing the radiation sensed into a signal representing the distribution of product contained in the porous body inside the reservoir.