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:
Apr. 11, 2017
Filed:
Oct. 03, 2006
Anke Pierik, Eindhoven, NL;
Antonius Johannes JO Wismans, Eindhoven, NL;
Willem-jan A. DE Wijs, Eindhoven, NL;
Johan Frederik Dijksman, Eindhoven, NL;
Martin Maurice Vernhout, Eindhoven, NL;
Adrianus Theodorus Anthonius Maria Raaijmakers, Eindhoven, NL;
Leonardus Johannes Cornelius Van Den Besselaar, Eindhoven, NL;
Anke Pierik, Eindhoven, NL;
Antonius Johannes Jo Wismans, Eindhoven, NL;
Willem-Jan A. De Wijs, Eindhoven, NL;
Johan Frederik Dijksman, Eindhoven, NL;
Martin Maurice Vernhout, Eindhoven, NL;
Adrianus Theodorus Anthonius Maria Raaijmakers, Eindhoven, NL;
Leonardus Johannes Cornelius Van Den Besselaar, Eindhoven, NL;
Koninklijke Philips N.V., Eindhoven, NL;
Abstract
An inkjet device for controlled positioning of a droplet of a substance onto a substrate includes a print head having a nozzle configured to eject the droplet. A camera is configured to detect and generate images of the droplet after ejection of the droplet from the nozzle. If the droplet volume, velocity, flight path, viscosity or surface tension start to deviate from preset values, a computer is configured to correct for this in a closed loop manner. If the droplet fails to eject, the computer is configured to stop the inkjet device and an operator can maintain the print head. The computer is configured to determine viscosity and surface tension of the droplet from characteristics of the droplet identified from the droplet images, and the computer is configured to control the positioning of the droplet onto the substrate during the printing process based on the determined viscosity and surface tension.