Patents by Inventor Thomas Dobbertin
Thomas Dobbertin 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: 20140225086Abstract: An organic light-emitting component, may include: a first electrode; an organic light-generating layer structure on or above the first electrode; a second translucent electrode on or above the organic light-generating layer structure; an optically translucent layer structure on or above the second electrode; and a mirror layer structure on or above the optically translucent layer structure, wherein the mirror layer structure has a light-scattering structure on that side of the mirror layer structure which lies toward the optically translucent layer structure.Type: ApplicationFiled: June 20, 2012Publication date: August 14, 2014Applicant: OSRAM OPTO SEMICONDUCTORS GMBHInventors: Thomas Dobbertin, Erwin Lang, Thilo Reusch, Daniel Steffen Setz
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Patent number: 8791490Abstract: An organic light-emitting diode (1), comprising a layer stack (2) for emitting electromagnetic radiation (6). An electrically conductive first connection layer (4) is arranged on a first surface of the layer stack (2) and an electrically conductive second connection layer (5) at least predominantly transparent to a characteristic wavelength of the emittable electromagnetic radiation (6) is arranged on a second surface of the layer stack (2). The organic light-emitting diode is characterized by a conductive contact structure (7) arranged on the opposite side of the first connection layer (4) from the layer stack, which contact structure is connected electrically to the second connection layer (5) in the region of a plurality of openings (12) in the first connection layer (4). Also disclosed is a contact arrangement (15) for a two-dimensional, optically active element and to a method of producing organic light-emitting diodes (1).Type: GrantFiled: February 16, 2009Date of Patent: July 29, 2014Assignee: OSRAM Opto Semiconductors GmbHInventors: Erwin Lang, Dirk Becker, Thomas Dobbertin, Markus Klein
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Patent number: 8774697Abstract: Printers and cleaning systems are provided. A cleaning system has an actuator that moves the electrostatic imaging member in a second direction opposite the first direction and a frame positions a mounting within a first range of mounting distances from the electrostatic imaging member with the mounting holding a cleaning blade at a holding angle that causes a free length of the cleaning blade to extend along a first direction to position a cleaning end of the cleaning blade to engage the electrostatic imaging member for movement therewith. The electrostatic imaging member urges the cleaning end in the second direction to deflect the cleaning blade to extend along the second direction to position the cleaning end to wipe the electrostatic imaging member and the free length, the holding angle and the working angle cause the cleaning edge to wipe at a working angle between about 85 and 89 degrees.Type: GrantFiled: September 21, 2011Date of Patent: July 8, 2014Assignee: Eastman Kodak CompanyInventors: Michael Thomas Dobbertin, Francisco Luiz Ziegelmuller, James Douglas Shifley
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Patent number: 8686440Abstract: In at least one embodiment of the organic light-emitting component (10), the latter comprises a unipolar charge carrier balder layer (3), a first layer (1) and a second layer (2) which are applied to opposing sides of the charge carrier barrier layer (3) and are in each case formed of at least one organic material, and two ambipolar injection layers (4), which are applied to the sides of the first (1) and second layers (2) remote from the charge carrier barrier layer (3). Such an organic, light-emitting component (10) may be operated efficiently with alternating current.Type: GrantFiled: May 7, 2009Date of Patent: April 1, 2014Assignee: OSRAM Opto Semiconductors GmbHInventors: Thomas Dobbertin, Nina Riegel
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Patent number: 8655217Abstract: Methods are provided for controlling airflow across a width of a charger support area having a charger housing supporting a corona charger that is proximate to a primary imaging member. In one method, a flow of air is provided proximate an inlet side of the charger housing area and a deflection surface is used to deflect the flow of air from a first direction to a second direction leading to an impact surface against which the flow of air is disbursed. The impact surface is outside of the width of the charger housing so that the air flow can supply a volume of disbursed air into the charger housing and primary imaging member that is sufficient to create a pressure that causes the disbursed air to move to an outlet on an opposite side of the area without directly exposing the charger or the primary imaging member.Type: GrantFiled: October 21, 2011Date of Patent: February 18, 2014Assignee: Eastman Kodak CompanyInventor: Michael Thomas Dobbertin
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Patent number: 8634742Abstract: Airflow management systems for a charger support area having a charger housing supporting a corona charger that is proximate to a primary imaging member are provided. In one embodiment an air flow management system has an air supply providing flow of air proximate an inlet side of the charger housing area and a deflection surface positioned to deflect the flow of air from a first direction to a second direction leading to an impact surface against which the flow of air is disbursed. The impact surface is outside of the width of the charger housing and the primary imaging member so that the air flow can supply a volume of disbursed air into the charger housing area that is sufficient to create a pressure that causes the disbursed air to move to an outlet on an opposite side of the area without exposing the charger or the primary imaging member to the flow.Type: GrantFiled: October 21, 2011Date of Patent: January 21, 2014Assignee: Eastman Kodak CompanyInventor: Michael Thomas Dobbertin
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Publication number: 20140014931Abstract: A process of producing a radiation-emitting organic-electronic device having a first and a second electrode layer and an emitter layer includes: A) providing a phosphorescent emitter with an anisotropic molecule structure and a matrix material, B) applying the first electrode layer to a substrate, C) applying the emitter layer under thermodynamic control, with vaporization of the phosphorescent emitter and of the matrix material under reduced pressure and deposition thereof on the first electrode layer such that molecules of the phosphorescent emitter are in anisotropic alignment, and D) applying the second electrode layer on the emitter layer.Type: ApplicationFiled: December 13, 2011Publication date: January 16, 2014Applicants: OSRAM Opto Semiconductors GmbH, Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V.Inventors: Nina Riegel, Jörg Frischeisen, Wolfgang Brütting, Thomas Dobbertin, Karsten Heuser, Daniel Steffen Setz, Benjamin Claus Krummacher, Michael Flämmich, Norbert Danz
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Patent number: 8559061Abstract: Methods are provided for automatic cross-track density correction for a print engine having a print head that forms lines of picture elements on a receiver based upon lines of pixel values. In one aspect of the method, the print engine is caused to print a first print having a plurality of different areas along a cross-track direction with target densities and data is received from which measured densities for different ones of the plurality of different areas can be determined. A line density adjustment function is based upon a functional relationship between a cross track position of different ones of the areas and a difference between the measured density and the target density at the different ones of the areas. A production print is subsequently printed according to lines of pixel values for the production print modulated by the line density adjustment function.Type: GrantFiled: July 8, 2011Date of Patent: October 15, 2013Assignee: Eastman Kodak CompanyInventors: Chung-Hui Kuo, Stacy M. Munechika, Michael Thomas Dobbertin
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Patent number: 8543030Abstract: An electrophotographic printer includes a rotatable photoreceptor adapted to receive dry toner and a rotatable toning member arranged with respect to the photoreceptor to supply toner thereto. A seal includes a complaint contact member and a non-contact member. The contact member is arranged in mechanical contact with the photoreceptor. The non-contact member is spaced apart from the surface of the toning member by a selected non-zero distance, the selected distance being greater than zero. This reduces dusting.Type: GrantFiled: April 28, 2011Date of Patent: September 24, 2013Assignee: Eastman Kodak CompanyInventors: Michael Thomas Dobbertin, James N. Alkins, Richard G. Luther, Jean Marie Trost
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Patent number: 8509637Abstract: A metering skive for a dry electrophotographic (EP) printer is mounted on a retractable skive mount. The skive mount is spring-loaded to a mounting block, and a stop pin sets the distance between the skive mount and the mounting block. A movable spacer with a plurality of laterally-separated regions of respective, different thicknesses is mounted between the head of the stop pin and the mounting block. A retractor can be operated to pull the skive mount towards the mounting block so the spacer can be moved to select a desired spacing between the mounting block and the skive mount, and thus a desired gap between the metering skive and the toning member in the printer.Type: GrantFiled: May 25, 2011Date of Patent: August 13, 2013Assignee: Eastman Kodak CompanyInventors: Michael Thomas Dobbertin, David James Cornell, Henry Paul Mitchell, Jr.
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Publication number: 20130101307Abstract: Airflow management systems for a charger support area having a charger housing supporting a corona charger that is proximate to a primary imaging member are provided. In one embodiment an air flow management system has an air supply providing flow of air proximate an inlet side of the charger housing area and a deflection surface positioned to deflect the flow of air from a first direction to a second direction leading to an impact surface against which the flow of air is disbursed. The impact surface is outside of the width of the charger housing and the primary imaging member so that the air flow can supply a volume of disbursed air into the charger housing area that is sufficient to create a pressure that causes the disbursed air to move to an outlet on an opposite side of the area without exposing the charger or the primary imaging member to the flow.Type: ApplicationFiled: October 21, 2011Publication date: April 25, 2013Inventor: Michael Thomas Dobbertin
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Publication number: 20130101308Abstract: Methods are provided for controlling airflow across a width of a charger support area having a charger housing supporting a corona charger that is proximate to a primary imaging member. In one method, a flow of air is provided proximate an inlet side of the charger housing area and a deflection surface is used to deflect the flow of air from a first direction to a second direction leading to an impact surface against which the flow of air is disbursed. The impact surface is outside of the width of the charger housing so that the air flow can supply a volume of disbursed air into the charger housing and primary imaging member that is sufficient to create a pressure that causes the disbursed air to move to an outlet on an opposite side of the area without directly exposing the charger or the primary imaging member.Type: ApplicationFiled: October 21, 2011Publication date: April 25, 2013Inventor: Michael Thomas Dobbertin
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Patent number: 8400054Abstract: An organic optoelectronic component comprises a substrate (1) with a first electrode (2) on the substrate (1), at least one first organic layer sequence (31) on the first electrode (2) which is suitable for emitting electromagnetic radiation during operation, an electrically conductive inorganic protective layer (4) on the at least one organic layer sequence (31) and a second electrode (5) on the protective layer (4). At least one of the first and second electrodes (2, 5) has a layer sequence (21, 22, 23) comprising a layer (21) comprising a transparent oxide and a layer (22) comprising a transparent metal.Type: GrantFiled: April 16, 2008Date of Patent: March 19, 2013Assignee: OSRAM Opto Semiconductors GmbHInventors: Thomas Dobbertin, Markus Heinrich Klein
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Publication number: 20130028643Abstract: Printers and cleaning systems are provided. A cleaning system has an actuator that moves the electrostatic imaging member in a second direction opposite the first direction and a frame positions a mounting within a first range of mounting distances from the electrostatic imaging member with the mounting holding a cleaning blade at a holding angle that causes a free length of the cleaning blade to extend along a first direction to position a cleaning end of the cleaning blade to engage the electrostatic imaging member for movement therewith. The electrostatic imaging member urges the cleaning end in the second direction to deflect the cleaning blade to extend along the second direction to position the cleaning end to wipe the electrostatic imaging member and the free length, the holding angle and the working angle cause the cleaning edge to wipe at a working angle between about 85 and 89 degrees.Type: ApplicationFiled: September 21, 2011Publication date: January 31, 2013Inventors: Michael Thomas Dobbertin, Francisco Luiz Ziegelmuller, James Douglas Shifley
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Publication number: 20130028644Abstract: Electrophotographic printers and cleaning systems for an electrostatic imaging member are provided. In one aspect the cleaning system has a scraper a mounting holding the scraper so that a free length of the scraper extends from the mounting and a frame positioning the mounting relative to the electrostatic imaging member so that the scraper extends along a holding angle toward the electrostatic imaging member and so that the mounting is separated from the electrostatic imaging member by an extension distance along the holding angle that is less than the free length with the scraper resiliently deflecting to fit within the extension distance to define a working angle where the scraper contacts the electrostatic imaging member.Type: ApplicationFiled: July 29, 2011Publication date: January 31, 2013Inventors: Michael Thomas Dobbertin, Francisco Luiz Ziegelmuller, James Douglas Shifley, Jean Marie Trost, James N. Alkins
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Publication number: 20130028645Abstract: A multi-component duplex print is produced on a receiver. Master print engines and slave print engines synchronized to the masters are arranged along the transport path of the receiver with inverters between them. Each inverter has an inverted travel path and a non-inverted travel path, and a difference of a travel time of the receiver in the inverted travel path of each inverter as compared to a travel time of a receiver in the non-inverted travel path of that inverter is adjusted to be an integral multiple of a period between successive receivers. A received job specification designating a first assigned one of the print engines to print on a first assigned side of the receiver. A controller sets the positions of the inverters so the first assigned side of the moving receiver is the corresponding print side of the first assigned print engine.Type: ApplicationFiled: July 27, 2011Publication date: January 31, 2013Inventors: Michael Thomas Dobbertin, Timothy John Young
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Publication number: 20130010313Abstract: Printers are provided having a print engine having a print head that forms lines of picture elements on a receiver based upon lines of pixel values and a controller that causes the print engine to print a first print having a plurality of different areas along a cross-track direction with target densities and that receives data from which measured densities for different ones of the plurality of different areas can be determined. The controller determines a line density adjustment function based upon a functional relationship between a cross-track position of different ones of the areas and a difference between the measured density and the target density at the different ones of the areas and subsequently prints a production print according to lines of pixel values for the production print modulated by the line density adjustment function.Type: ApplicationFiled: July 8, 2011Publication date: January 10, 2013Inventors: Stacy M. Munechika, Michael Thomas Dobbertin, Chung-Hui Kuo
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Publication number: 20130010312Abstract: Methods are provided for automatic cross-track density correction for a print engine having a print head that forms lines of picture elements on a receiver based upon lines of pixel values. In one aspect of the method, the print engine is caused to print a first print having a plurality of different areas along a cross-track direction with target densities and data is received from which measured densities for different ones of the plurality of different areas can be determined. A line density adjustment function is based upon a functional relationship between a cross track position of different ones of the areas and a difference between the measured density and the target density at the different ones of the areas. A production print is subsequently printed according to lines of pixel values for the production print modulated by the line density adjustment function.Type: ApplicationFiled: July 8, 2011Publication date: January 10, 2013Inventors: Chung-Hui Kuo, Stacy M. Munechika, Michael Thomas Dobbertin
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Publication number: 20120301165Abstract: A metering skive for a dry electrophotographic (EP) printer is mounted on a retractable skive mount. The skive mount is spring-loaded to a mounting block, and a stop pin sets the distance between the skive mount and the mounting block. A movable spacer with a plurality of laterally-separated regions of respective, different thicknesses is mounted between the head of the stop pin and the mounting block. A retractor can be operated to pull the skive mount towards the mounting block so the spacer can be moved to select a desired spacing between the mounting block and the skive mount, and thus a desired gap between the metering skive and the toning member in the printer.Type: ApplicationFiled: May 25, 2011Publication date: November 29, 2012Inventors: MICHAEL THOMAS DOBBERTIN, David James Cornell, Henry Paul Mitchell, JR.
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Patent number: 8314541Abstract: A radiation-emitting arrangement comprises, in particular, a carrier element (1) having an at least partly non-transparent main surface (10) and arranged on the carrier element (1), an organic radiation-emitting component (2) having an organic layer sequence (23) with an active region between an at least partly transparent first electrode (21) and an at least partly transparent second electrode (22). The active region (29) is suitable for generating electromagnetic radiation (91, 93) in a switched-on operating state. The radiation-emitting arrangement has a radiation exit area (3) for emitting the electromagnetic radiation (92, 93) on that side of the organic radiation-emitting component (2) which faces away from the carrier element. (1) The at least partly non-transparent main surface (10) of the carrier element (1) is perceptible by an external observer through the radiation exit area (3) in a switched-off operating state of the organic radiation-emitting component (2).Type: GrantFiled: February 25, 2009Date of Patent: November 20, 2012Assignee: OSRAM Opto Semiconductors GmbHInventors: Erwin Lang, Markus Klein, Martin Wittmann, Dirk Becker, Thomas Dobbertin, Arndt Jaeger, Karsten Diekmann