Patent application number | Description | Published |
20080271494 | Method for making an optical preform - The present invention relates to a method for manufacturing a preform for optical fibers via a vapor deposition process in which the position of the reversal point near the substrate tube's supply side shifts along the longitudinal axis of the substrate tube during at least part of the deposition process. | 11-06-2008 |
20100254653 | Multimode Fiber - A multimode optical fiber comprises a central core having an alpha profile, a depressed cladding having a portion in continuity with the alpha profile of the central core and a stepped portion, and an outer cladding. The alpha profile is obtained by co-doping at least two dopants. The variation in concentration of each dopant and its derivative in relation to the fiber radius are continuous. A multimode fiber for Ethernet optical system with an improved bandwidth is thus obtained. | 10-07-2010 |
20100310218 | Large Bandwidth Multimode Optical Fiber Having a Reduced Cladding Effect - A multimode optical fiber includes a central core having a radius (r | 12-09-2010 |
20110135262 | Multimode Optical Fiber with Low Bending Losses and Reduced Cladding Effect - The present invention embraces an optical fiber that includes a central core having an alpha-index profile with respect to an outer cladding. The optical fiber also includes an inner cladding, a depressed trench, and an outer cladding. Typically, the alpha-index profile of the central core is interrupted at a point having a positive refractive index difference with respect to the outer cladding. The optical fiber achieves reduced bending losses and a high bandwidth with a reduced cladding effect for high-data-rate applications. | 06-09-2011 |
20110135263 | High-Bandwidth Multimode Optical Fiber Having Reduced Bending Losses - The present invention embraces a multimode optical fiber that includes a central core having an alpha-index profile, an inner cladding, a depressed trench, and an outer cladding (e.g., an outer optical cladding). Typically, the central core's alpha-index profile has a minimum refractive index at the central core's radius that corresponds to a refractive index difference with respect to the outer cladding. The optical fiber achieves reduced bending losses and a high bandwidth with a reduced cladding effect for high-data-rate applications. | 06-09-2011 |
20110305423 | Multimode Fiber - A multimode optical fiber comprises a central core having an alpha profile, a depressed cladding having a portion in continuity with the alpha profile of the central core and a stepped portion, and an outer cladding. The alpha profile is obtained by co-doping at least two dopants. A multimode fiber for Ethernet optical system with an improved bandwidth is thus obtained. | 12-15-2011 |
20120195549 | Broad-Bandwidth Optical Fiber - The present invention embraces an optical fiber that includes a central core having an alpha refractive index profile with respect to an outer optical cladding. The optical fiber also includes an inner cladding and a buried trench. The central core includes a core matrix doped with at least fluorine and a dopant element that increases refractive index. The optical fiber typically has reduced bending losses and cladding effect as well as a high bandwidth at the wavelengths of 850 nanometers and 1300 nanometers for high-data-rate applications. | 08-02-2012 |
20120195561 | Multimode Optical Fiber - A multimode optical fiber includes a central core having a graded-index profile with a delta value of about 1.9 percent or greater. The graded-index core profile has at least two different alpha parameter values along the core radius, namely a first value in an inner zone of the central core and a second value in an outer zone of the central core. The second alpha parameter value is typically less than the first alpha parameter value. The graded-index core profile and its first derivative are typically substantially continuous over the width of the graded-index core. | 08-02-2012 |
Patent application number | Description | Published |
20090289222 | PROCESS FOR PREPARING COMPOSITES COMPRISING CARBON AND MAGNESIUM FOR HYDROGEN STORAGE - A process for preparing carbon and magnesium including composites, includes: a) contacting a carbon material including pores of which at least 30%, based on the total number of pores, have a pore diameter in the range 0.1 to 10×10 | 11-26-2009 |
20090305881 | METAL NITRATE CONVERSION METHOD - A method for converting a supported metal nitrate into the corresponding supported metal comprises heating the metal nitrate to effect its decomposition under a gas mixture that contains nitric oxide and has an oxygen content of <5% by volume. The method provides very highly dispersed metal oxide on the support material. The metal oxide is useful as a catalyst or as a catalyst precursor. | 12-10-2009 |
20100099553 | METAL NITRATE CONVERSION METHOD - A method for converting a supported metal nitrate into the corresponding supported metal oxide comprises heating the metal nitrate to effect its decomposition under a gas mixture that contains nitrous oxide and has an oxygen content of <5% by volume. The method provides very highly dispersed metal oxide on the support material. The metal oxide is useful as a catalyst or as a catalyst precursor. | 04-22-2010 |
20120018349 | MODIFIED Y-TYPE ZEOLITES HAVING A TRIMODAL INTRACRYSTALLINE STRUCTURE, METHOD FOR MAKING SAME, AND USE THEREOF - The invention relates to a Y-type zeolite having a modified faujasite structure, the intracrystalline structure of which includes at least one network of micropores, at least one network of small mesopores having an average diameter ranging from 2 to 5 nm, and at least one network of large mesopores having an average diameter ranging from 10 to 50 nm. The invention also relates to particles including such zeolites and to the use thereof in a method for processing crude oil, particularly as a hydrocracking catalyst. | 01-26-2012 |
20120115715 | METHOD FOR PRODUCING A SUPPORTED METAL NITRATE - A method for the preparation of a supported metal nitrate, suitable as a precursor for a catalyst or sorbent, includes the steps of:
| 05-10-2012 |
20150328625 | MODIFIED Y-TYPE ZEOLITES HAVING A TRIMODAL INTRACRYSTALLINE STRUCTURE, METHOD FOR MAKING SAME, AND USE THEREOF - The invention relates to a Y-type zeolite having a modified faujasite structure, the intracrystalline structure of which includes at least one network of micropores, at least one network of small mesopores having an average diameter ranging from 2 to 5 nm, and at least one network of large mesopores having an average diameter range from 10 to 50 nm. The invention also relates to particles including such zeolites and to the use thereof in a method for processing crude oil, particularly as a hydrocracking catalyst. | 11-19-2015 |
Patent application number | Description | Published |
20090262325 | Positioning System, Lithographic Apparatus and Device Manufacturing Method - A positioning system to position a table within a base frame of a lithographic apparatus, the positioning system including first and second actuators and a controller. The first actuator exerting an actuation force on the table. The first actuator being connected to a balance mass constructed and arranged to absorb a reaction force of the first actuator. The controller and second actuator constructed and arranged to exert a compensation force and/or torque to compensate a torque caused by the actuation force exerted by the first actuator on the balance mass. | 10-22-2009 |
20110194088 | Projection System, Lithographic Apparatus, Method of Projecting a Beam of Radiation onto a Target and Device Manufacturing Method - A projection system (PS) is provided that includes a sensor system ( | 08-11-2011 |
20120044471 | Lithographic Apparatus and Method - A method of projecting a patterned beam onto a substrate using an EUV lithographic apparatus having a projection system including a plurality of mirrors. The method includes the following steps. Using the projection system to project the patterned beam onto the substrate while moving a final mirror of the projection system in a direction substantially perpendicular to the surface of the substrate. Rotating the final mirror to substantially compensate for unwanted translation of the projected patterned radiation beam on the substrate due to the movement of the mirror. | 02-23-2012 |
20120147355 | Positioning System, Lithographic Apparatus and Device Manufacturing Method - A positioning system to position a table within a base frame of a lithographic apparatus, the positioning system including first and second actuators and a controller. The first actuator exerting an actuation force on the table. The first actuator being connected to a balance mass constructed and arranged to absorb a reaction force of the first actuator. The controller and second actuator constructed and arranged to exert a compensation force and/or torque to compensate a torque caused by the actuation force exerted by the first actuator on the balance mass. | 06-14-2012 |
20140043596 | ARRANGEMENT FOR ACTUATING AN ELEMENT IN A MICROLITHOGRAPHIC PROJECTION EXPOSURE APPARATUS - An arrangement actuates an element in a microlithographic projection exposure apparatus. The arrangement includes first and second actuators and first and second mechanical couplings. The first and second actuators are coupled to the element via corresponding ones of the first and second mechanical couplings for applying respective forces to the element which is regulatable in at least one degree of freedom. The first and second actuators have first and second actuator masses, respectively, and the first actuator mass and the first mechanical coupling conjointly define a first mass-spring system operating as a first low-pass filter. The second actuator mass and the second mechanical coupling conjointly define a second mass-spring system operating as a second low-pass filter. The first and second mass-spring systems have first and second natural frequencies deviating from each other by a maximum deviation equal to 10% of the largest of the first and second natural frequencies. | 02-13-2014 |
20140293251 | Projection System, Lithographic Apparatus, Method of Projecting a Beam of Radiation onto a Target and Device Manufacturing Method - A projection system is provided that includes a sensor system that measures at least one parameter that relates to the physical deformation of a frame that supports the optical elements within the projection system, and a control system that, based on the measurements from the sensor system, determines an expected deviation of the position of the beam of radiation projected by the projection system that is caused by the physical deformation of the frame. | 10-02-2014 |