Patents by Inventor Clemens T. Weijkamp
Clemens T. Weijkamp 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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Publication number: 20230226829Abstract: The present invention relates to a print method. In the print method, a first layer of ink is deposited and cured before a second layer is applied. The present invention further relates to a software product. The present invention also relates to an inkjet printing apparatus.Type: ApplicationFiled: January 3, 2023Publication date: July 20, 2023Applicant: Canon Production Printing Holding B.V.Inventors: Pim VAN DER ASDONK, Ke PENG, Clemens T. WEIJKAMP, Hendrik J.A. OGRINC, Robin X.E. WILLEMSE
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Patent number: 11458741Abstract: The present invention relates to a method for applying an image onto a recording medium. Using the method according to the present invention, images may be printed having a predetermined gloss. The method further enables to make prints having local differences in gloss level. The present invention further relates to an ink-jet printing apparatus.Type: GrantFiled: September 29, 2020Date of Patent: October 4, 2022Assignee: CANON PRODUCTION PRINTING HOLDING B.V.Inventors: Kimball M. Leek, Clemens T. Weijkamp, Pim Van Der Asdonk, Luc Van Keulen
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Publication number: 20210138798Abstract: The present invention relates to a method for applying an image onto a recording medium. Using the method according to the present invention, images may be printed having a predetermined gloss. The method further enables to make prints having local differences in gloss level. The present invention further relates to an ink-jet printing apparatus.Type: ApplicationFiled: September 29, 2020Publication date: May 13, 2021Applicant: Canon Production Printing Holding B.V.Inventors: Kimball M. LEEK, Clemens T. WEIJKAMP, Pim VAN DER ASDONK, Luc VAN KEULEN
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Patent number: 10471730Abstract: A printing method for printing a digital image on a substantially flat substrate includes providing the digital image including a raster of a plurality of pixels; providing a height channel to the digital image defining a height for each pixel; discriminating in the digital image for each pixel a relief part, a white part and a skin part; providing an inking mask including a binary image of areas of the substrate to be finished and areas of the substrate not to be finished; image processing of the digital image by applying the inking mask to the image, wherein the height of a pixel within an area of the substrate to be finished is reduced by substantially reducing a height of the relief part of said pixel; and printing the processed image obtained in the image processing step on the substrate.Type: GrantFiled: May 23, 2018Date of Patent: November 12, 2019Assignee: OCÉ HOLDING B.V.Inventors: Clemens T. Weijkamp, Antonius M. Gerrits
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Publication number: 20180345681Abstract: A printing method for printing a digital image on a substantially flat substrate includes providing the digital image including a raster of a plurality of pixels; providing a height channel to the digital image defining a height for each pixel; discriminating in the digital image for each pixel a relief part, a white part and a skin part; providing an inking mask including a binary image of areas of the substrate to be finished and areas of the substrate not to be finished; image processing of the digital image by applying the inking mask to the image, wherein the height of a pixel within an area of the substrate to be finished is reduced by substantially reducing a height of the relief part of said pixel; and printing the processed image obtained in the image processing step on the substrate.Type: ApplicationFiled: May 23, 2018Publication date: December 6, 2018Applicant: Océ Holding B.V.Inventors: Clemens T. WEIJKAMP, Antonius M. GERRITS
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Publication number: 20170262742Abstract: A printing method for printing an image exceeding an available size constraint of a printer comprises the steps of: providing a digital raster image comprising a plurality of pixels, the raster image comprising color and height information for each pixel; providing an algorithm for determining an optimal division of the digital image into a plurality of parts based on the information of the plurality of pixels of the raster image; image processing of the raster image comprising the step of applying the algorithm to the raster image to obtain a plurality of partial images defined by a plurality of accompanying contours; providing a substrate; printing an obtained partial image; cutting a panel from the substrate in accordance with an accompanying contour of a partial image. The present invention further relates to a printed object manufactured with the invented method and to a printer comprising a controller configured for performing the invented method.Type: ApplicationFiled: March 3, 2017Publication date: September 14, 2017Applicant: Océ Holding B.V.Inventors: Wilhelmus J.E.G. VERHOFSTAD, Koen J. KLEIN KOERKAMP, Clemens T. WEIJKAMP
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Patent number: 9469135Abstract: A printing system and a method for printing a multilayer structure using radiation curable ink, the multilayer structure comprising multiple ink layers which are consecutively printed, and wherein a first printed ink layer of any two consecutively printed ink layers is cured before a subsequently printed ink layer is printed thereon, wherein at least one ink of multiple inks is selected for being used for printing the multilayer structure, said multiple inks comprising at least one first and at least one second radiation curable ink, wherein said at least one ink is selected in dependence on information about at least one property of the said at least one ink apart from color, wherein, of the multiple inks, at least the selected at least one ink and at least one of the at least one first ink are used for printing the multilayer structure; the physical property being e.g. an expansion/shrinkage property and/or an adhesion property.Type: GrantFiled: May 21, 2015Date of Patent: October 18, 2016Assignee: OCE-TECHNOLOGIES B.V.Inventor: Clemens T. Weijkamp
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Publication number: 20150336410Abstract: A printing system and a method for printing a multilayer structure using radiation curable ink, the multilayer structure comprising multiple ink layers which are consecutively printed, and wherein a first printed ink layer of any two consecutively printed ink layers is cured before a subsequently printed ink layer is printed thereon, wherein at least one ink of multiple inks is selected for being used for printing the multilayer structure, said multiple inks comprising at least one first and at least one second radiation curable ink, wherein said at least one ink is selected in dependence on information about at least one property of the said at least one ink apart from color, wherein, of the multiple inks, at least the selected at least one ink and at least one of the at least one first ink are used for printing the multilayer structure; the physical property being e.g. an expansion/shrinkage property and/or an adhesion property.Type: ApplicationFiled: May 21, 2015Publication date: November 26, 2015Applicant: OCE-TECHNOLOGIES B.V.Inventor: Clemens T. WEIJKAMP
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Patent number: 9079399Abstract: A printing system for printing a fluid includes a print head for ejecting droplets of the fluid; a first fluid storing section for storing a first amount of the fluid; a second fluid storing section for storing a second amount of the fluid, the second fluid storing section being in fluid communication to the pressure chamber in a power down situation; and a pre-tension device configured for arranging the second amount of the fluid in a pre-tension state in the second fluid storing section, thereby providing a positive fluid pressure on the nozzle in a power down situation, which positive fluid pressure is selected such that a third amount of fluid passes through the nozzle in response to said positive fluid pressure and forms a film on the nozzle plate. The printing system according to the invention supports the recovery of the print head after a power down situation.Type: GrantFiled: May 15, 2014Date of Patent: July 14, 2015Assignee: OCÉ-TECHNOLOGIES B.V.Inventors: Clemens T. Weijkamp, Johannes A. T. Gollatz, Herbert Morelissen
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Publication number: 20140340449Abstract: A printing system for printing a fluid includes a print head for ejecting droplets of the fluid; a first fluid storing section for storing a first amount of the fluid; a second fluid storing section for storing a second amount of the fluid, the second fluid storing section being in fluid communication to the pressure chamber in a power down situation; and a pre-tension device configured for arranging the second amount of the fluid in a pre-tension state in the second fluid storing section, thereby providing a positive fluid pressure on the nozzle in a power down situation, which positive fluid pressure is selected such that a third amount of fluid passes through the nozzle in response to said positive fluid pressure and forms a film on the nozzle plate. The printing system according to the invention supports the recovery of the print head after a power down situation.Type: ApplicationFiled: May 15, 2014Publication date: November 20, 2014Applicant: Océ-Technologies B.V.Inventors: Clemens T. WEIJKAMP, Johannes A.T. GOLLATZ, Herbert MORELISSEN
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Patent number: 7029096Abstract: A multicolor ink jet printing method which includes the steps of moving a carriage is moved relative to a recording medium in a main scanning direction and a subscanning direction orthogonal to the main scanning direction, printing each color with a different group of nozzle heads mounted on the carriage, wherein at least one color is printed with a larger number of nozzle heads than the other colors, and printing the at least one color with a larger printing resolution in the main scanning direction than the other colors.Type: GrantFiled: October 8, 2003Date of Patent: April 18, 2006Assignee: Oce-Technologies B.V.Inventors: Clemens T. Weijkamp, Franciscus J. H. M. Van Den Beucken, Henricus W. C. Douven
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Publication number: 20040160478Abstract: A multicolor ink jet printing method which includes the steps of moving a carriage is moved relative to a recording medium in a main scanning direction and a subscanning direction orthogonal to the main scanning direction, printing each color with a different group of nozzle heads mounted on the carriage, wherein at least one color is printed with a larger number of nozzle heads than the other colors, and printing the at least one color with a larger printing resolution in the main scanning direction than the other colors.Type: ApplicationFiled: October 8, 2003Publication date: August 19, 2004Inventors: Clemens T. Weijkamp, Franciscus J.H.M. Van Den Beucken, Henricus W.C. Douven
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Patent number: 6071986Abstract: An ink composition for a meltable ink, usable in printing devices in which ink droplets are ejected from ducts, which composition contains a meltable base material, wherein the ink composition also contains an amorphously setting monomer compound and an amorphous polymer or oligomer binder and the base material is a crystalline-setting monomer compound. The flow and setting properties and the stiffness of the ink is adjusted by the choice and relative proportion of the constituents.Type: GrantFiled: February 4, 1998Date of Patent: June 6, 2000Assignee: Oce-Technologies, B.V.Inventors: Roelof Hendrik Everhardus, Ronald Groothuijse, Erik Kelderman, Clemens T. Weijkamp
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Patent number: 5330865Abstract: A multi-layered electrophotographic element providing significantly improved properties, especially for use in photocopying and printing, which comprises a conductive support carrying a photoconductive layer comprising a photoconductive charge generating layer and a charge transporting layer on the charge generating layer. The charge generating photoconductive layer comprises a mixture of charge generating perylene pigments of the following structures ##STR1## wherein the mixture of perylene pigments is selected from pigment mixtures of a perylene of structure 1 with a perylene of structure 2, pigment mixtures of perylenes of structure 1 and pigment mixtures of perylenes of structure 2.Type: GrantFiled: October 9, 1992Date of Patent: July 19, 1994Assignee: Oce-Nederland, B.V.Inventors: Gerardus R. B. Leus, Achilles W. M. Persoon, Clemens T. Weijkamp