Patents by Inventor Marc Jansa
Marc Jansa 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: 20210129430Abstract: According to one example, there is provided a method of additive manufacturing that comprises obtaining data relating to a 3D object to be manufactured, forming a layer of build material on a build platform, applying a cooling agent in a pattern surrounding a portion of build material to be solidified, and applying energy only to the build material on which cooling agent is applied and to the surrounded portion of build material such that the surrounded portion of build material heats up sufficiently to coalesces, and such that build material on which cooling agent is applied is cooled by the cooling agent and is prevented from heating up sufficiently to coalesce.Type: ApplicationFiled: October 17, 2018Publication date: May 6, 2021Inventors: Alex Veis, Esteve Comas Cespedes, Marc Jansa Perez, Xavier Soler Pedemonte
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Patent number: 7216952Abstract: A multicolor-printer has at least a first and a second print station, first and second optical sensors and a surface recordings comparator. The first and second print stations are arranged to print images on a surface of a moving recording medium. The first and second optical sensors view, at the first and second print stations, an area of the recording medium surface to obtain at least one first surface recording, in a manner related to the first print station's image printing, and second surface recordings, respectively. A storage is arranged to store the first surface recording. The surface recordings comparator is arranged to test, during the recording medium movement, for correspondence of second surface recordings with the stored first surface recording.Type: GrantFiled: July 2, 2004Date of Patent: May 15, 2007Assignee: Hewlett-Packard Development Company, L.P.Inventors: David Claramunt, Carles Flotats, Jose M Rio Doval, Rodrigo Ruiz, Francesc Subirada, Marc Jansa, Xavier Soler, Fernando Juan
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Patent number: 7201467Abstract: An ink reservoir adaptor for use in a printing device, comprising a reservoir supporting element movable relative to the adaptor between first and second positions, the supporting element being arranged in the first position to receive a reservoir such that an interface associated with the reservoir is located in a predetermined position relative to the supporting element, the supporting element being further arranged, when moved to the second position, to bring the interface to a predetermined position relative to the adaptor.Type: GrantFiled: April 23, 2004Date of Patent: April 10, 2007Assignee: Hewlett-Packard Development Company, L.P.Inventors: Francesc Ros, Marc Jansa, Macia Sole
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Patent number: 7111918Abstract: A media-positioning sensor assembly in one embodiment of the invention is disclosed that includes a mechanism and a media-positioning sensor. The mechanism moves back and forth over media along a first axis. The media advances past the mechanism along a second axis perpendicular to the first axis. The media-positioning sensor is situated on the mechanism and is to detect positioning of the media relative to the mechanism along at least one of the first axis and the second axis.Type: GrantFiled: August 13, 2004Date of Patent: September 26, 2006Assignee: Hewlett-Packard Development Company, L.P.Inventors: Carles Flotats, David Claramunt, Jose M. Rio Doval, Rodrigo Ruiz, Francesc Subirada, Joaquim Veciana, Marc Jansa
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Publication number: 20060033769Abstract: A media-positioning sensor assembly in one embodiment of the invention is disclosed that includes a mechanism and a media-positioning sensor. The mechanism moves back and forth over media along a first axis. The media advances past the mechanism along a second axis perpendicular to the first axis. The media-positioning sensor is situated on the mechanism and is to detect positioning of the media relative to the mechanism along at least one of the first axis and the second axis.Type: ApplicationFiled: August 13, 2004Publication date: February 16, 2006Inventors: Carles Flotats, David Claramunt, Jose Rio Doval, Rodrigo Ruiz, Francesc Subirada, Joaquim Veciana, Marc Jansa
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Publication number: 20050185009Abstract: A multicolor-printer has at least a first and a second print station, first and second optical sensors and a surface recordings comparator. The first and second print stations are arranged to print images on a surface of a moving recording medium. The first and second optical sensors view, at the first and second print stations, an area of the recording medium surface to obtain at least one first surface recording, in a manner related to the first print station's image printing, and second surface recordings, respectively. A storage is arranged to store the first surface recording. The surface recordings comparator is arranged to test, during the recording medium movement, for correspondence of second surface recordings with the stored first surface recording.Type: ApplicationFiled: July 2, 2004Publication date: August 25, 2005Inventors: David Claramunt, Carles Flotats, Jose Rio Doval, Rodrigo Ruiz, Francesc Subirada, Marc Jansa, Xavier Soler, Fernando Juan
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Patent number: 6929342Abstract: A sensor system for detecting skew in print media along the feed path of a hardcopy device is disclosed. In one embodiment of the invention the system is arranged to generate a first image of a area of print media at a first position along the feed path and to generate a second image of the area of print media at a second position along the feed path, the system is arranged to compare the first and second images and thereby detect a change in the angle of skew of the media between the first and second positions.Type: GrantFiled: July 30, 2003Date of Patent: August 16, 2005Assignee: Hewlett-Packard Development Company, L.P.Inventors: David Claramunt, Carles Flotats, Jose M Rio Doval, Rodrigo Ruiz, Marc Jansa
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Patent number: 6927841Abstract: A media holddown device a plastics vacuum guide attached to a sheet metal vacuum beam, the guide includes vacuum chambers in communication with the beam through openings to control the negative pressures applied to media of varying widths by a fan. Dividing walls are provided between the chambers to maintain the value of the negative pressure larger than a predetermined value, especially for media with conventional widths. An intermediate wall divides the guide into front and rear chambers to increase the control of media leading edges. The number, size and pattern of arrangement of openings are selected to produce desired air flow characteristics.Type: GrantFiled: August 21, 2001Date of Patent: August 9, 2005Assignee: Hewlett-Packard Development Company, L.P.Inventors: Antonio Hinojosa, Joaquim Brugue, Marc Jansa, Lluis Valles, Francesc Xavier Magrans
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Publication number: 20050024415Abstract: A sensor system for detecting skew in print media along the feed path of a hardcopy device is disclosed. In one embodiment of the invention the system is arranged to generate a first image of a area of print media at a first position along the feed path and to generate a second image of the area of print media at a second position along the feed path, the system is arranged to compare the first and second images and thereby detect a change in the angle of skew of the media between the first and second positions.Type: ApplicationFiled: July 30, 2003Publication date: February 3, 2005Inventors: David Claramunt, Carles Flotats, Jose Doval, Rodrigo Ruiz, Marc Jansa
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Publication number: 20040263569Abstract: An ink reservoir adaptor for use in a printing device, comprising a reservoir supporting element movable relative to the adaptor between first and second positions, the supporting element being arranged in the first position to receive a reservoir such that an interface associated with the reservoir is located in a predetermined position relative to the supporting element, the supporting element being further arranged, when moved to the second position, to bring the interface to a predetermined position relative to the adaptor.Type: ApplicationFiled: April 23, 2004Publication date: December 30, 2004Applicant: Hewlett-Packard Development Company, L.P.Inventors: Francesc Ros, Marc Jansa, Macia Sole
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Patent number: 6834928Abstract: A method of an embodiment of the invention is disclosed in which a linear imaging array captures a first one pixel-wide image of media, and the media is effectively advanced relative to the linear imaging array. The linear imaging array captures a second one pixel-wide image of the media, and the first and the second one pixel-wide images are compared to determine relative advancement of the media.Type: GrantFiled: April 19, 2003Date of Patent: December 28, 2004Assignee: Hewlett-Packard Development Company, L.P.Inventors: Jose M Rio Doval, Carles Flotats, David Claramunt, Marc Jansa, Francesc Subirada
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Publication number: 20040207672Abstract: A method of an embodiment of the invention is disclosed in which a linear imaging array captures a first one pixel-wide image of media, and the media is effectively advanced relative to the linear imaging array. The linear imaging array captures a second one pixel-wide image of the media, and the first and the second one pixel-wide images are compared to determine relative advancement of the media.Type: ApplicationFiled: April 19, 2003Publication date: October 21, 2004Inventors: Jose M. Rio Doval, Carles Flotats, David Claramunt, Marc Jansa, Francesc Subirada
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Publication number: 20020097311Abstract: A media holddown device a plastics vacuum guide attached to a sheet metal vacuum beam, the guide includes vacuum chambers in communication with the beam through openings to control the negative pressures applied to media of varying widths by a fan. Dividing walls are provided between the chambers to maintain the value of the negative pressure larger than a predetermined value, especially for media with conventional widths. An intermediate wall divides the guide into front and rear chambers to increase the control of media leading edges. The number, size and pattern of arrangement of openings are selected to produce desired air flow characteristics.Type: ApplicationFiled: August 21, 2001Publication date: July 25, 2002Inventors: Antonio Hinojosa, Joaquim Brugue, Marc Jansa, Lluis Valles, Francesc Xavier Magrans