Patents by Inventor Serge Tavernier
Serge Tavernier has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 8501381Abstract: The invention relates to a liquid developer composition comprising a dispersant, and toner particles dispersed in said dispersant. The liquid developer composition can be used for printing onto a substrate. The binder resin in the toner particles is curable, e.g. by UV-light.Type: GrantFiled: March 19, 2008Date of Patent: August 6, 2013Assignee: Hologi Hitec-Imaging GmbHInventors: Hans-Josef Humpert, Serge Tavernier, Kerstin Hymon
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Publication number: 20130127969Abstract: A print head element part of an ionographic print head is provided having a mechanism for introducing at one end an ionisable gas or gas mixture into a tubular channel, the print head element further having a planar driver electrode and a planar control electrode both surrounding channel, a dielectric body keeping driver electrode and control electrode separate, a source for applying an alternating voltage for the ionization of the gas or gas mixture in channel, a modulation electrode being separated from control electrode by dielectric material, a source for applying a direct current voltage between modulation electrode and control electrode to either block ions in channel or to allow the flow out of ions from channel.Type: ApplicationFiled: August 4, 2010Publication date: May 23, 2013Applicant: TRIAKON NVInventors: Lucien De Schamphelaere, Bert Vackier, Serge Tavernier, Axel Van Den Bosch, Lieven De Schamphelaere, Maarten Tavernier
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Publication number: 20100068478Abstract: The invention relates to a liquid developer composition comprising a dispersant, and toner particles dispersed in said dispersant. The liquid developer composition can be used for printing onto a substrate. The binder resin in the toner particles is curable, e.g. by UV-light.Type: ApplicationFiled: March 19, 2008Publication date: March 18, 2010Applicant: AEG Elektrofotografie GmbHInventors: Hans-Josef Humpert, Serge Tavernier, Kerstin Hymon
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Patent number: 7231096Abstract: A method and system for reproducing an image on a carrier, the method includes: generating a conjoined first and second sub-image, each representative for a portion of the image; defining an overlap region where both sub-images give a contribution to the internal optical density of the carrier; dividing the overlap region in a partition of microdots; establishing for each sub-image a peripheral edge in the overlap region; increasing the contribution by the first sub-image from the peripheral edge of the first sub-image to the peripheral edge of the second sub-image; and assigning to at least one microdot an intermediate microscopic density different from a minimum or maximum microscopic density of microdots; wherein the contribution increases the microscopic density of the microdots by density steps smaller than half the difference between the minimum and maximum microscopic densities of the microdots.Type: GrantFiled: October 28, 2003Date of Patent: June 12, 2007Assignee: Agfa-Gevaert N.V.Inventors: Dirk Broddin, Mario Verbruggen, Serge Tavernier
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Patent number: 6924075Abstract: The present invention relates to a dry toner composition suited for development of electrostatic charge images, magnetic patterns or DEP (Direct Electrostatic Printing). More specifically the present invention relates to a specific toner composition allowing fusing of the toner image to the final substrate at low temperature.Type: GrantFiled: February 21, 2003Date of Patent: August 2, 2005Assignee: Xeikon International N.V.Inventors: Serge Tavernier, Werner Op de Beeck, Sabine Vanhee
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Patent number: 6887639Abstract: The present invention relates to a liquid toner composition suited for development of electrostatic charge images, magnetic patterns or DEP (Direct Electrostatic Printing). More specifically the present invention relates to a specific liquid toner composition allowing transfusing of the toner image from a temporary carrier to the final substrate at low temperature.Type: GrantFiled: February 21, 2003Date of Patent: May 3, 2005Assignee: Xeikon International N.V.Inventors: Serge Tavernier, Werner Op de Beeck
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Publication number: 20040085587Abstract: For the reproduction of originals, images are generated on an image carrier, for example by printing. The imaging device that generates the image is usually not capable to cover at once the complete image area on the carrier. If the device is capable to cover the full width of the image area, the image may be generated line by line. Devices not having this capability will generate a first portion of an image line on the carrier. An adjacent second portion of the image line is then generated by another imaging device or after a period of time by the imaging device that generated the first portion. The region where the first and second portion meet on the carrier may cause visual artefacts on the final reproduction due to spatial misregistration of the adjacent line portions. This problem is solved by dividing the image in adjacent sub-images having an overlap zone on the carrier.Type: ApplicationFiled: October 28, 2003Publication date: May 6, 2004Inventors: Dirk Broddin, Mario Verbruggen, Serge Tavernier
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Publication number: 20040028291Abstract: For the reproduction of originals, images are generated on an image carrier, for example by printing. The imaging device that generates the image is usually not capable to cover at once the complete image area on the carrier. If the device is capable to cover the full width of the image area, the image may be generated line by line. Devices not having this capability will generate a first portion of an image line on the carrier. An adjacent second portion of the image line is then generated by another imaging device or after a period of time by the imaging device that generated the first portion. The region where the first and second portion meet on the carrier may cause visual artefacts on the final reproduction due to spatial misregistration of the adjacent line portions. This problem is solved by dividing the image in adjacent sub-images having an overlap zone on the carrier.Type: ApplicationFiled: August 7, 2003Publication date: February 12, 2004Inventors: Dirk Broddin, Mario Verbruggen, Serge Tavernier
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Patent number: 6690837Abstract: For the reproduction of originals, images are generated on an image carrier, for example by printing. The imaging device that generates the image is usually not capable to cover at once the complete image area on the carrier. If the device is capable to cover the full width of the image area, the image may be generated line by line. Devices not having this capability will generate a first portion of an image line on the carrier. An adjacent second portion of the image line is then generated by another imaging device or after a period of time by the imaging device that generated the first portion. The region where the first and second portion meet on the carrier may cause visual artefacts on the final reproduction due to spatial misregistration of the adjacent line portions. This problem is solved by dividing the image in adjacent sub-images having an overlap zone on the carrier.Type: GrantFiled: October 27, 1999Date of Patent: February 10, 2004Assignees: AGFA-Gevaert, Xeikon NV.Inventors: Dirk Broddin, Mario Verbruggen, Serge Tavernier
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Publication number: 20030219672Abstract: The present invention relates to a liquid toner composition suited for development of electrostatic charge images, magnetic patterns or DEP (Direct Electrostatic Printing). More specifically the present invention relates to a specific liquid toner composition allowing transfusing of the toner image from a temporary carrier to the final substrate at low temperature.Type: ApplicationFiled: February 21, 2003Publication date: November 27, 2003Inventors: Serge Tavernier, Werner Op de Beeck
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Publication number: 20030180645Abstract: The present invention relates to a dry toner composition suited for development of electrostatic charge images, magnetic patterns or DEP (Direct Electrostatic Printing). More specifically the present invention relates to a specific toner composition allowing fusing of the toner image to the final substrate at low temperature.Type: ApplicationFiled: February 21, 2003Publication date: September 25, 2003Inventors: Serge Tavernier, Werner Op de Beeck, Sabine Vanhee
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Publication number: 20030134219Abstract: A toner composition of which the toner particles are electrostatically or magnetically attractable and suitable for use in the satin-look development and fixing of electrostatic charge images or magnetic patterns and wherein the composition of said powder particles comprises a linear non gel containing and a non-linear gel containing polyester, with specific melt characteristics. A method of using such toner particles in specific fixing devices enabling fixing of colour images on different substrates, on two sides within one single pass.Type: ApplicationFiled: November 15, 2002Publication date: July 17, 2003Inventors: Serge Tavernier, Dirk Costrop, Werner Op De Beeck, Kurt Mampaey
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Patent number: 6514653Abstract: Dry toner particles are provided wherein the toner resin includes a mixture of two polymer A and B, A and B being chosen such that an extruded slab with thickness 250 &mgr;m of a 50:50 mixture of both has a transmission density (DM) being between 0.10 and 1.00 higher than the sum of half the transmission density of a 250 &mgr;m extruded slab of polymer A alone (DA) and half the transmission density of a 250 &mgr;m extruded slab of polymer B alone (DB). The polymers A and B are mixed in a weight ratio between 5:1 to 1:5 and make up at least 25% by weight of the total toner resin. The polymer A is a polyester and the polymer B is a polyester or a specified styrene-acrylic copolymer.Type: GrantFiled: April 5, 1996Date of Patent: February 4, 2003Assignee: Xeikon NVInventors: Serge Tavernier, Werner Op De Beeck, Jean-Pierre Ghekiere, Michel Vervoort
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Patent number: 6420029Abstract: Carrier particles having a coating comprising a polycondensation network containing a chemical compound selected from the group consisting of a monomeric polyfunctional organosilane, an hydrolysis product of a monomeric polyfunctional organosilane, a reaction product of a monomeric polyfunctional organosilane with an organosilane containing an hetero-atom and a reaction product of a monomeric polyfunctional organosilane with an alkoxide, characterized in that the coating further comprises between 5% and 50%, by weight, both limits included, of a polymeric compound not containing silicon atoms.Type: GrantFiled: November 22, 1999Date of Patent: July 16, 2002Assignee: Xeikon InternationalInventors: Serge Tavernier, Daniel Heitzmann
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Patent number: 6413638Abstract: Finely divided particles can be provided in a simple manner and with good adhesion with a coating which is a polyfunctional organosilane and/or a hydrolysis product thereof, and/or a reaction product thereof with an organosilane which contains a hetero atom and/or with an alkoxide.Type: GrantFiled: December 9, 1999Date of Patent: July 2, 2002Assignee: Agfa Gevaert AGInventors: Michael Mager, Johannes Eickmans, Rainer Bellinghausen, Serge Tavernier, Raf Voets
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Patent number: 6365279Abstract: A fusing member comprising a support, and on the support, an outermost layer containing a silicone elastomer, having at most 5% by weight of filler particles, the elastomer layer containing polyorganosiloxane having a swelling factor, SF, equal to or higher than 3 and a thickness between 5 and 500 &mgr;m, both limits included and a second layer with an impurity absorbing material, closer to the support and immediately in contact with the outermost layer, the second layer being at least 40 &mgr;m thick. Preferably the second layer has a silicone containing elastomer and contains at least 5% by weight of metal oxide particles having a specific surface of ≧30 m2.Type: GrantFiled: December 15, 1999Date of Patent: April 2, 2002Assignee: Xeikon N.V.Inventors: Stefaan De Meutter, Serge Tavernier, Danny Van Wunsel
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Patent number: 6264861Abstract: A method for rounding thermoplastic particles whereby the thermoplastic particles are stirred at a temperature around their plastification temperature, Tplast, together with particles that are larger than the thermoplastic particles and that have a higher specific gravity.Type: GrantFiled: June 22, 1999Date of Patent: July 24, 2001Assignee: Xeikon NVInventors: Serge Tavernier, Daniel Heitzmann, Gerrit Delen, Geert Tersago
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Patent number: 6248492Abstract: An electrostatic method for producing a master image for decorating ceramic, enamel or glass objects comprising the steps of: providing a temporary support having a surface with release properties, image-wise depositing charged toner particles, having a volume average particle size dv, such that 5 &mgr;m<dv<15 &mgr;m the particles including in the bulk particles of a ceramic pigment, CP, selected from the group of metals, metal oxides and mixed metal oxides, having a volumetric particle size distribution such that 90% of the particles have a diameter lower than ⅔ times dv and providing particles of glazing material, having a volumetric particle size distribution such that 90% of the particles have a diameter lower than ⅔ dv, in the master image. Preferably the glazing material is brought in the master image by image-wise depositing toner particles comprising in the bulk of the toner particles both a ceramic pigment and glazing material.Type: GrantFiled: February 16, 1999Date of Patent: June 19, 2001Assignee: Xeikon NVInventors: Serge Tavernier, Werner Op De Beeck, Daniel Heitzmann
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Patent number: 6238835Abstract: Dry toner particles with a resinous matrix containing a mixture of a polymer (LPC) with low softening point and tg&dgr;>3, modified by a modifier (D) selected from the group consisting of long chain aliphatic compounds with a reactive end group and having between 20 and 250 carbon atoms and a polysiloxane, said modifier and said polymer being present in a molar ratio LPC/D between 0.8 and 1.25 and a non-linear polymer with a softening point TsB such that 110° C.≦TsB≦135° C. The toner particles further contain a wax chosen from waxes having a melting point near to the softening point of the branched polymer B.Type: GrantFiled: April 25, 2000Date of Patent: May 29, 2001Assignee: Xeikon, N.V.Inventors: Serge Tavernier, Werner Op de Beeck, Stefaan de Meutter, Geert Tersago
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Patent number: 6175374Abstract: An apparatus is provided for reproducing a continuous tone image by imagewise application of toner particles to a substrate comprising: means for partitioning a surface of the substrate in a plurality of disjunctive microdots; means for applying to at least one microdot at least two types of toner, having substantially the same chromaticity. Preferentially, for each toner type a large majority of microdots within a region comprising adjacent microdots, is supplied with either a high or low amount of toner, whereas the other microdots are supplied with a medium amount of toner, and more preferentially for at least one toner type the region comprises at least one microdot supplied with a high, another with a low and another with a medium amount of said toner. In a preferred embodiment the minimum number (N) of types of toner particles used in the apparatus depends on the volume average size of the toner particles used.Type: GrantFiled: March 24, 1998Date of Patent: January 16, 2001Assignee: Agfa-GevaertInventors: Dirk Broddin, Serge Tavernier