Patent application number | Description | Published |
20090052786 | COMPUTER VISION-BASED METHODS FOR ENHANCED JBIG2 AND GENERIC BITONAL COMPRESSION - A system and method of symbol matching may include a processor configured to determine which pixels of a first symbol are tangent pixels; for each of the determined tangent pixels, determine whether a second symbol includes a pixel corresponding to the tangent pixel that includes at least one same tangent constraint as that of the tangent pixel; accept the first and second symbols as a match based on shared tangent constraints conditional upon a determination that the second symbol includes for each of at least a subset of the tangent pixels of the first symbol a corresponding pixel that includes the at least one same tangent constraint as that of the tangent pixel; and generate a document including a single symbol that is mapped to the first and second symbols. | 02-26-2009 |
20090067709 | PERCEPTUALLY LOSSLESS COLOR COMPRESSION - A system and method of color data compression may perform variations of MRC compression including taking into consideration means and/or variances within k×k cells of an image, background texture, background smoothed color, and gradient components for determination of which parts of an image belong to the background and foreground MRC layers, for calculating thresholds values for such determinations, and determining correctness of determined thresholds and polarity, and may determine the background and foreground layer colors based on the variances, the gradient components, and neighboring pixels of non-color-assigned pixels of the background and foreground layers. | 03-12-2009 |
20120183216 | PERCEPTUALLY LOSSLESS COLOR COMPRESSION - A system and method of color data compression may perform variations of MRC compression including taking into consideration means and/or variances within k×k cells of an image, background texture, background smoothed color, and gradient components for determination of which parts of an image belong to the background and foreground MRC layers, for calculating thresholds values for such determinations, and determining correctness of determined thresholds and polarity, and may determine the background and foreground layer colors based on the variances, the gradient components, and neighboring pixels of non-color-assigned pixels of the background and foreground layers. | 07-19-2012 |
20120257834 | COMPUTER VISION-BASED METHODS FOR ENHANCED JBIG2 AND GENERIC BITONAL COMPRESSION - A system and method of symbol matching may include a processor configured to determine which pixels of a first symbol are tangent pixels; for each of the determined tangent pixels, determine whether a second symbol includes a pixel corresponding to the tangent pixel that includes at least one same tangent constraint as that of the tangent pixel; accept the first and second symbols as a match based on shared tangent constraints conditional upon a determination that the second symbol includes for each of at least a subset of the tangent pixels of the first symbol a corresponding pixel that includes the at least one same tangent constraint as that of the tangent pixel; and generate a document including a single symbol that is mapped to the first and second symbols. | 10-11-2012 |
20140093163 | PERCEPTUALLY LOSSLESS COLOR COMPRESSION - A system and method of color data compression may perform variations of MRC compression including taking into consideration means and/or variances within k×k cells of an image, background texture, background smoothed color, and gradient components for determination of which parts of an image belong to the background and foreground MRC layers, for calculating thresholds values for such determinations, and determining correctness of determined thresholds and polarity, and may determine the background and foreground layer colors based on the variances, the gradient components, and neighboring pixels of non-color-assigned pixels of the background and foreground layers. | 04-03-2014 |
20140153838 | COMPUTER VISION-BASED METHODS FOR ENHANCED JBIG2 AND GENERIC BITONAL COMPRESSION - A system and method of symbol matching may include a processor configured to determine which pixels of a first symbol are tangent pixels; for each of the determined tangent pixels, determine whether a second symbol includes a pixel corresponding to the tangent pixel that includes at least one same tangent constraint as that of the tangent pixel; accept the first and second symbols as a match based on shared tangent constraints conditional upon a determination that the second symbol includes for each of at least a subset of the tangent pixels of the first symbol a corresponding pixel that includes the at least one same tangent constraint as that of the tangent pixel; and generate a document including a single symbol that is mapped to the first and second symbols. | 06-05-2014 |
Patent application number | Description | Published |
20110040524 | TONER MASS SENSING PRECISION BY NORMALIZATION TO SUBSTRATE REFLECTANCE AND ADJUSTED FOR TONER MASS LEVEL - A method of normalizing sensor readings includes receiving a reading from a sensor configured to detect light reflected from a substrate; and normalizing the sensor reading based on a function of sensed mass level on the substrate. A processor for implementing the method is also provided. | 02-17-2011 |
20110286032 | SYSTEM AND METHOD FOR IDENTIFYING A CAUSE OF LATENESS OF A PRINT JOB IN A PRINT PRODUCTION ENVIRONMENT - A system for determining a cause of lateness of a print job may include a computing device and a computer-readable storage medium in communication with the computing device. The computer-readable storage medium may include one or more programming instructions for identifying a late print job, identifying a plurality of document production stations that processed at least a portion of the late print job, determining an associated contribution value representing a contribution of the document production station to the lateness, determining sources of the lateness, displaying a first visual depiction that visually depicts a measure of a contribution of each of the identified document production stations to a collective lateness of the print shop, receiving a user selection of one of the document production stations and a time period, and displaying a second visual depiction of one or more print jobs processed by the document production station during the time period. | 11-24-2011 |
20120057885 | METHOD FOR COLOR STABILITY DIAGNOSTICS BASED ON CORRELATION ANALYSIS - A diagnostic method for color stability in an image printing system includes printing a test pattern onto output media; measuring, during the printing of the test pattern, an image of the test pattern on an image transfer surface using one or more image transfer surface sensors to obtain one or more image transfer surface signals; measuring a printed image of the test pattern on the output media using a printed image sensor to obtain a printed image signal; calculating correlation functions for the one or more image transfer surface signals and the printed image signal; and analyzing the correlation functions for the one or more image transfer surface signals and the printed image signal to identify a subsystem in the image printing system that causes variations in color within the plurality of prints of the test pattern. | 03-08-2012 |
20130063764 | METHOD AND SYSTEM FOR PERFORMING STATISTICAL THROUGHPUT CONTROL IN A PRINT SHOP - A method of determining a probability of a set of print jobs being completed within a time period may include receiving a schedule associated with a set of print jobs. The schedule may include a sequence in which the set of print jobs is to be processed, a mean processing time associated with each print job in the set, and a standard deviation of a processing time associated with each print job in the set. The method may include determining a probability that a print shop will complete processing of the set of print jobs within a time period based on the mean processing time and standard deviation associated with each of the print jobs in the set that has not been processed and displaying the probability on a display device. | 03-14-2013 |
20130070285 | METHOD AND SYSTEMS FOR BALANCING MACHINE LOAD - Methods and systems of balancing job assignments to a plurality of machines are disclosed. A computing device receives multiple jobs each having a job size and determines a job order for the jobs based on each job's job size. A machine order is determined for a plurality of machines based on a setup time and a processing rate associated with each machine. The computing device assigns one or more jobs to each machine based on the job order and the machine order such that a maximum total processing time for the machines is minimized. A total processing time for each machine is determined based on the number of jobs and the cumulative job size of the jobs assigned to the machine, and the setup time and the processing time associated with the machine. The maximum total processing time is the largest of the total processing times for the machines. | 03-21-2013 |
20130070286 | METHODS AND SYSTEMS FOR LOAD LEVELING IN A PRINT SHOP - A method and system for managing print shop workflow determines whether variations in print shop workflow may be reduced by shifting one or more customers' scheduled orders to different time periods. By shifting an order from one time period to another, the system may reduce variability in demand levels over time, thus helping increase overall system efficiency. To do this, one or more customers are selected as candidates for print shop order rescheduling. The system identifies customer orders that, if moved to other time periods, will most reduce demand level variations. A user may accept the system's recommendations, or the system may present a user with several alternative load leveling options for selection. The system may then cause the orders to be printed based on the load leveling proposal and the user's selection. | 03-21-2013 |
20130195381 | SYSTEM AND METHOD FOR CAPTURING PRODUCTION WORKFLOW INFORMATION - A workflow information capture system uses a digital pen to capture handwritten information about a production process resource. The pen captures the handwritten markings from a worksheet, identifies the position of the marking, based on the position determines one or more process parameters for the marking, and saves the handwritten markings and their corresponding process parameter in a memory. The system may then use this information to generate recommendations for improving a workflow that is implemented by the process resource. | 08-01-2013 |
20130226524 | ADAPTIVE MINIUMUM VARIANCE CONTROL SYSTEM WITH EMBEDDED DIAGNOSTIC FEATURE - Systems and methods perform a first monitoring of a printing engine to produce first data; match a disturbance model that empirically describes types of color variation in a print process to the first data; generate a minimum variance control system based on the identified parameters of the disturbance model. The systems/methods infer a benchmark performance level the minimum variance control system achieves using the disturbance model; adjust operating parameters of a controller of the printing engine to match parameters of the minimum variance control system; perform a second monitoring of the printing engine to produce second data; determine a difference value between the benchmark performance level and the second data. If the difference value is above a first value and below a second value, the process is repeated. If the difference value is above the first value and the second value, an indication that the printing engine needs servicing is provided. | 08-29-2013 |
20130246117 | METHOD AND SYSTEM FOR PRODUCTION FACILITY PLANNING - A print job planning system determines a current state of a print shop and a set of expected disturbances for the print shop. It uses the current state and the set of expected disturbances to determine a cost for anticipated work in progress associated with various actuations. It also identifies a minimum cost from the determined costs, along with an actuation that corresponds to the minimum cost. It may then generate a report of the actuation, generate a work schedule based on the identified actuation, and/or cause the identified actuation to be implemented by at least one print device of the print shop. | 09-19-2013 |
20140071481 | METHODS AND SYSTEMS FOR ASSIGNING JOBS TO PRODUCTION DEVICES - A method of assigning a job to a production device may include identifying a queue comprising a plurality of print jobs, identifying a plurality of print production devices capable of processing the plurality of print jobs, determining that one of the identified print production devices is an idle print production device, identifying a top priority print job from the queue, determining a completion time associated with processing the top priority print job by each of the identified print production devices, identifying a fastest print production device, assigning the top priority print job to the fastest print production device, determining whether the fastest print production device is the idle print production device, and in response to determining that the fastest print production device is the idle print production device, sending the top priority print job to the fastest print production device and removing the top priority print job from the queue. | 03-13-2014 |
20140176512 | SYSTEM AND METHOD FOR CREATING AND MODIFYING PHYSICALLY TRANSIENT HANDWRITTEN DIGITAL DOCUMENTS - A method, system, and apparatus for capturing information is disclosed. The method includes emitting energy of a first wavelength from a first energy source located proximate to a first end of a digital pen and forming a first set handwritten markings on the substrate by causing the substrate to image as a result of an exposure of the substrate to the energy emitted from the first energy source. The method also includes detecting by an image-capturing sensor of the digital pen a first detected portion of a position-identifying pattern on the substrate and storing in the memory a digital document file comprising the first set of handwritten markings and the first detected portion of the position-identifying data. An apparatus and system for performing the method is also disclosed. | 06-26-2014 |
20140240737 | METHODS AND SYSTEMS FOR DESIGNING CELLS IN A PRODUCTION ENVIRONMENT - A method of designing a cell in a print production environment may include identifying one or more print jobs, grouping the one or more print jobs into one or more job groups, identifying a job group to assign to a cell, identifying a print job, determining a process, determining a job volume, and determining whether the cell includes a production device capable of performing the determined process. The method may include, in response to the cell not including a production device capable of performing the determined process, determining a production device capable of performing the determined process, determining a capacity, and in response to determining that adding the determined production device to the cell will not increase a number of production devices in the cell to a value that exceeds a threshold value, adding the determined production device to the cell, and determining a recalculated capacity. | 08-28-2014 |
20140288861 | SAMPLING METHODOLOGY FOR MEASURING POWER CONSUMPTION FOR A POPULATION OF POWER-CONSUMING DEVICES - A method and device for performing a sampling methodology for measuring power consumption for a population of power-consuming devices. The device includes a processor configured to perform the method. The method includes determining an energy consumption level for each device in a population of power-consuming devices; clustering the population of power-consuming devices into a plurality of clusters such that each of the plurality of clusters has a similar overall energy consumption; determining an estimated total energy consumption for each cluster; determining an estimated total energy consumed by the population of devices based upon the total energy consumption for each cluster, wherein the estimated total energy consumed by the population is within an acceptable uncertainty; and determining a number of samples to measure in each cluster such that the uncertainty associated with the estimated total energy consumed by the population of devices is minimized. | 09-25-2014 |
20140372339 | METHODS AND SYSTEMS FOR OPTIMIZING PROFITABILITY OF A PRINT PRODUCTION ENVIRONMENT - A method of determining a maximum profit for a print production environment may include receiving, by a computing device, a flow model associated with a print production environment, applying, by the computing device, a modified Jackson Network analysis to the flow model to generate one more characteristic curves that each characterize a relationship between profit of the print production environment and job inflow rate and that each show a maximum profit value for the print production environment, and presenting, by the computing device, one or more of the generated characteristic curves to a user. | 12-18-2014 |
20150106684 | A METHOD AND APPARATUS FOR CUSTOMIZED HANDWRITING ENTRY ZONES - A method, non-transitory computer readable medium, and apparatus for providing a customized handwriting zone are disclosed. For example, the method receives a handwriting sample for a user, measures dimensions of the handwriting sample for the user, generates one or more handwriting zones that are sized in accordance with the dimensions of the handwriting sample of the user, receives a request to generate a form for the user and provides the form that includes the one or more handwriting zones that are customized in accordance with the dimensions of the handwriting sample of the user. | 04-16-2015 |
20150160954 | METHODS AND SYSTEMS FOR RECOMMENDING SOLUTIONS TO PERFORMANCE ISSUES IN A PRINT PRODUCTION ENVIRONMENT - A method of recommending one or more solutions to a performance issue may include receiving operations information associated with a print production environment, determining one or more performance metrics associated with the print production environment based on at least a portion of the received operations information, and determining whether a performance issue associated with the print production environment exists based on one or more of the performance metrics. The method may include, in response to determining that a performance issue exists, identifying a cause of the performance issue, identifying a different configuration of production devices for the print production environment, running a simulation on the different configuration using historical job information associated with the print production environment to determine whether the different configuration mitigates the performance issue, and in response to determining that the different configuration mitigates the performance issue, recommending the different configuration to a user. | 06-11-2015 |
20150205555 | METHODS AND SYSTEMS FOR ASSIGNING A JOB SOURCE TO A HUB IN A PRINT PRODUCTION ENVIRONMENT - A method of assigning a hub to a job source may include identifying one or more job sources where one or more print jobs are received, identifying one or more hubs to which the print jobs can be sent to be processed, determining a processing cost for each unique pair of job sources and hubs, creating, by a computing device, a job source list by identifying the pair associated with the largest processing cost, assigning the job source of the identified pair a highest position in the job source list, and repeating the identifying and the assigning for a next highest position until all identified job sources are assigned, and assigning the job source having the highest position in the job source list to an associated hub having a lowest processing cost. | 07-23-2015 |
20150235149 | METHODS AND SYSTEMS FOR EVALUATING PERFORMANCE OF PRINT PRODUCTION ENVIRONMENTS - A method of simulating performance of a print production environment may include receiving, by a computing device, print production environment information that comprises one or more of the following: inventory information from a warehouse management system, worker information from a people management system, equipment information from an equipment management system, or job information from a job management system. The method may include receiving, by the computing device, a performance parameter associated with the print production environment, and performing, by the computing device, a simulation of operation of the print production environment using the received print production environment information to determine an impact of the performance parameter on the print production environment's performance. | 08-20-2015 |
20150269862 | METHODS AND SYSTEMS FOR PROVIDING PENMANSHIP FEEDBACK - A method of providing feedback to a student on penmanship may include receiving, by a computing device, a completed assessment that includes one or more handwritten responses of a student, classifying one or more of the responses into one or more classifications by applying intelligent character recognition to the responses, presenting one or more classification results to a user, receiving, by the computing device, validation information associated with the presented classification results, identifying one or more penmanship issues based, at least in part, on the received validation information, generating a second assessment that includes one or more questions designed to improve one or more of the identified penmanship issues, and providing the second assessment to the student. | 09-24-2015 |
20150294170 | METHODS AND SYSTEMS FOR DETERMINING ASSESSMENT CHARACTERS - A method of determining an input character based upon character recognition output of an education assessment system may include receiving, by a processing device, a proposed value generated using character recognition. The proposed value may be associated with at least one handwritten character of an assessment. The method may include determining, by the processing device, whether the proposed value is correct, by determining a posterior probability associated with each of one or more possible characters, identifying the possible character associated with the posterior probability having a highest value, and in response to identifying the proposed value as the possible character associated with the posterior probability having a highest value, determining, by the processing device, that the proposed value is correct, otherwise, determining that the proposed value is incorrect. | 10-15-2015 |
20160098231 | OPTIMAL SCHEDULING OF MULTI-SITE ENTERPRISE PRINT JOBS - Methods and systems evaluate the most recent print job processed with different printing sites to calculate the current residual capacity for each of the different printing sites. The current residual capacity is determined and maintained by a computerized server. These methods and systems can then calculate the turnaround time of a print job for each of the different printing sites based on the current residual capacity, can calculate the cost of the print job for each of the different printing sites based on historical cost information maintained by the computerized server, and can calculate a weighted sum of the turnaround time and cost of the print job for each of the different printing sites. This allows these methods and systems to select one of the different printing sites based on the relatively lowest weighted sum for the print job, and to assign the print job to the selected printing site. | 04-07-2016 |
Patent application number | Description | Published |
20080260403 | Method For Adjusting Transfer Current In An Image Transfer Machine - In a printing machine having at least one transfer device driven in response to an electrical signal and operable to transfer a medium onto a sheet, a method controls the magnitude of the electrical signal driving the transfer device. The method includes assigning a magnitude of the electrical signal for driving the transfer device to each of at least two transfer stress levels, evaluating only operating parameters of the printing machine that have a pre-determined priority value relative to a corresponding pre-determined threshold value, selecting one of the at least two transfer stress levels based on the evaluation of the at least one operating parameter, and applying the magnitude of the electrical signal corresponding to the selected stress level to the electrically-driven transfer device. | 10-23-2008 |
20100028040 | METHOD AND APPARATUS FOR AUTOMATIC COROTRON CLEANING IN AN IMAGE PRODUCTION DEVICE - A method and apparatus for automatic corotron cleaning in an image production device is disclosed. The method may include receiving a first dynamic current reading, the dynamic current being the current supplied to a photoreceptor of the image production device, determining if the first dynamic current reading exceeds a predetermined threshold, the predetermined threshold being a threshold set on the allowable variation in the dynamic current value, wherein if it is determined that the first dynamic current reading exceeds the predetermined threshold, sending a signal to a cleaning device to clean the corotron, determining that the corotron has been cleaned, receiving a second current reading, determining if the second dynamic current reading exceeds the predetermined threshold, wherein if it is determined that the second dynamic current reading exceeds the predetermined threshold, sending a signal to prompt a user to replace the corotron in the image production device. | 02-04-2010 |
20100046974 | Systems and methods for controlling cleaning devices in image forming apparatus - Systems and methods are provided for controlling cleaning devices in image forming apparatus electrostatic image forming apparatus. Such systems may include a charge receptor, movable in a process direction, defining a main surface. A toner application device applies toner to the charge receptor, and is configured to place a lubrication stripe including the toner on a portion of the main surface of the charge receptor at a selected time. An influence of a pre-clean corotron on the charge receptor is modified, during the designated rotations of the charge receptor, while the portion of the surface on which the lubrication stripe is formed, or will be formed, is passing the pre-clean corotron. The lubrication stripe is delivered to a secondary cleaning device including a blade engaging with the photoreceptor surface to lubricate the blade. | 02-25-2010 |
20100046975 | SYSTEMS AND METHODS FOR CONTROLLING CLEANING DEVICES IN IMAGE FORMING APPARATUS - Systems and methods are provided for controlling cleaning devices in image forming apparatus electrostatic image forming apparatus. Such systems may include a charge receptor, movable in a process direction, defining a main surface. A toner application device applies toner to the charge receptor, and is configured to place a lubrication stripe including the toner on a portion of the main surface of the charge receptor at a selected time. An influence of at least one corotron on the charge receptor is modified, during the designated rotations of the charge receptor, while the portion of the surface on which the lubrication stripe is formed, or will be formed, is passing the at least one corotron. The lubrication stripe is delivered to a secondary cleaning device including a blade engaging with the photoreceptor surface to lubricate the blade. | 02-25-2010 |
20100046976 | SYSTEMS AND METHODS FOR CONTROLLING CLEANING DEVICES IN IMAGE FORMING APPARATUS - Systems and methods are provided for controlling cleaning devices in image forming apparatus electrostatic image forming apparatus. Such systems may include a charge receptor, movable in a process direction, defining a main surface. A toner application device applies toner to the charge receptor, and is configured to place a lubrication stripe including the toner on a portion of the main surface of the charge receptor at a selected time. A primary cleaning device cleans the main surface of the charge receptor, and includes at least one biased member having an effective area associated with the main surface relative to motion of the charge receptor. A secondary cleaning device is configured to engage the main surface of the charge receptor downstream of the biased member, and a control system reverses a bias on the biased member during a time when a lubrication stripe is in the effective area of the biased member. | 02-25-2010 |
20100046997 | SYSTEMS AND METHODS FOR CONTROLLING CLEANING DEVICES IN IMAGE FORMING APPARATUS - Systems and methods are provided for controlling cleaning devices in image forming apparatus electrostatic image forming apparatus. Such systems may include a charge receptor, movable in a process direction, defining a main surface. A toner application device applies toner to the charge receptor, and is configured to place a lubrication stripe including the toner on a portion of the main surface of the charge receptor, the position of the lubrication stripe is controlled with respect to a position on the main surface of the charge receptor corresponding to a paper trail edge. The dimensions and density of the lubrication stripe may also be controlled. The lubrication stripe is delivered to a secondary cleaning device including a blade engaging with the photoreceptor surface to lubricate the blade. | 02-25-2010 |
20100086316 | METHOD AND APPARATUS FOR COROTRON CLEANING MANAGEMENT IN AN IMAGE PRODUCTION DEVICE - A method and apparatus for corotron cleaning management in an image production device is disclosed. The method may include receiving an input from the corotron cleaning counter, determining if the corotron cleaning counter exceeds a predetermined threshold, wherein if it is determined that the corotron cleaning counter exceeds the predetermined threshold, notifying a maintainer that the corotron requires cleaning, determining if corotron cleaning has been performed, wherein if it is determined that corotron cleaning has been performed, resetting the corotron cleaning counter. | 04-08-2010 |
Patent application number | Description | Published |
20150064472 | DAMAGE RESISTANT GLASS WITH HIGH COEFFICIENT OF THERMAL EXPANSION - Ion exchangeable glasses having coefficients of thermal expansion (CTE) at least about 90×10 | 03-05-2015 |
20150107303 | ACID STRENGTHENING OF GLASS - Disclosed herein are methods for strengthening glass articles having strength-limiting surface flaws, together with strengthened glass articles produced by such methods, and electronic devices incorporating the strengthened glass articles. The methods generally involve contacting the glass articles with a substantially fluoride-free aqueous acidic treating medium for a time at least sufficient to increase the rupture failure points of the glass articles. | 04-23-2015 |
20150140325 | ION EXCHANGEABLE HIGH DAMAGE RESISTANCE GLASSES - Embodiments of glass composition including at least about 65 mol % SiO | 05-21-2015 |
20150147576 | PHOSPHOROUS CONTAINING GLASS HAVING ANTIMICROBIAL EFFICACY - A strengthened antimicrobial glass including greater from about 50.0 mol. % to about 65.0 mol. % SiO | 05-28-2015 |
20150210588 | BENDABLE GLASS STACK ASSEMBLIES, ARTICLES AND METHODS OF MAKING THE SAME - A glass element having a thickness from 25 μm to 125 μm, a first primary surface, a second primary surface, and a compressive stress region extending from the first primary surface to a first depth, the region defined by a compressive stress σI of at least about 100 MPa at the first primary surface. Further, the glass element has a stress profile such that when the glass element is bent to a target bend radius of from 1 mm to 20 mm, with the center of curvature on the side of the second primary surface so as to induce a bending stress σB at the first primary surface, σI+σB<0. Still further, the glass element has a puncture resistance of ≧1.5 kgf when the first primary surface of the glass element is loaded with a tungsten carbide ball having a diameter of 1.5 mm. | 07-30-2015 |
20150210589 | BENDABLE GLASS STACK ASSEMBLIES, ARTICLES AND METHODS OF MAKING THE SAME - A glass element having a thickness from 25 μm to 125 μm, a first primary surface, a second primary surface, and a compressive stress region extending from the first primary surface to a first depth, the region defined by a compressive stress σI of at least about 100 MPa at the first primary surface. Further, the glass element has a stress profile such that it does not fail when it is subject to 200,000 cycles of bending to a target bend radius of from 1 mm to 20 mm, by the parallel plate method. Still further, the glass element has a puncture resistance of greater than about 1.5 kgf when the first primary surface of the glass element is loaded with a tungsten carbide ball having a diameter of 1.5 mm. | 07-30-2015 |
20150210590 | BENDABLE GLASS STACK ASSEMBLIES, ARTICLES AND METHODS OF MAKING THE SAME - A glass element having a thickness from 25 μm to 125 μm, a first primary surface, a second primary surface, and a compressive stress region extending from the first primary surface to a first depth, the region defined by a compressive stress σI of at least about 100 MPa at the first primary surface. Further, the glass element has a stress profile such that it does not fail when it is held at a bend radius from about 1 mm to about 20 mm for at least 60 minutes at about 25° C. and about 50% relative humidity. Still further, the glass element has a puncture resistance of greater than about 1.5 kgf when the first primary surface of the glass element is loaded with a tungsten carbide ball having a diameter of 1.5 mm. | 07-30-2015 |
20150230476 | Antimicrobial Glass Compositions, Glasses and Polymeric Articles Incorporating The Same - Embodiments of the present invention pertain to antimicrobial glass compositions, glasses and articles. The articles include a glass, which may include a glass phase and a cuprite phase. In other embodiments, the glasses include as plurality of Cu | 08-20-2015 |
20150232380 | UV PHOTOBLEACHING OF GLASS HAVING UV-INDUCED COLORIZATION - A method of UV photobleaching a glass sample having UV-induced colorization is disclosed. The processed includes first irradiating the glass sample with colorizing UV radiation having a colorizing wavelength of λ | 08-20-2015 |
20150239770 | ION EXCHANGEABLE GLASS ARTICLE FOR THREE-DIMENSIONAL FORMING - An alkali aluminosilicate glass that can be chemically strengthened and formed into a three dimensional shape. The glass has a softening point of less than about 825° C. and a high temperature coefficient of thermal expansion of less than about 30 parts per million (ppm)/° C. The glass may be ion exchanged after the three dimensional shape is formed. When ion exchanged, the glass has a surface layer that is under a compressive stress of at least about 700 MPa. | 08-27-2015 |
20150329408 | Surface Nitrided Alkali-Free Glasses - Alkali-free glasses are disclosed having (in weight %) 50≦SiO | 11-19-2015 |
20150368150 | ION EXCHANGEABLE GLASS WITH HIGH CRACK INITIATION THRESHOLD - Alkali aluminosilicate glasses that are resistant to damage due to sharp impact and capable of fast ion exchange are provided. The glasses comprise at least 4 mol % P | 12-24-2015 |
20160023448 | METHODS AND APPARATUS FOR FABRICATING AND CUTTING FLEXIBLE GLASS AND POLYMER COMPOSITE STRUCTURES - Methods and apparatus provide for: sourcing an ultra-thin glass sheet having first and second opposing major surfaces and perimeter edges therebetween, the glass sheet having a thickness between the first and second surfaces of less than about 400 microns; adhering at least one polymer layer directly or indirectly to at least one of the first and second surfaces of the glass sheet to form a laminated structure; and cutting the laminated structure using at least one of the following techniques: shear cutting, burst cutting, slit cutting, and crush cutting. | 01-28-2016 |
20160023944 | ION EXCHANGED GLASSES VIA NON-ERROR FUNCTION COMPRESSIVE STRESS PROFILES - Glasses with compressive stress profiles that allow higher surface compression and deeper depth of layer (DOL) than is allowable in glasses with stress profiles that follow the complementary error function at a given level of stored tension. In some instances, a buried layer or local maximum of increased compression, which can alter the direction of cracking systems, is present within the depth of layer. Theses compressive stress profiles are achieved by a three step process that includes a first ion exchange step to create compressive stress and depth of layer that follows the complimentary error function, a heat treatment at a temperature below the strain point of the glass to partially relax the stresses in the glass and diffuse larger alkali ions to a greater depth, and a re-ion-exchange at short times to re-establish high compressive stress at the surface. | 01-28-2016 |
20160090321 | UV BLOCKING FOR IMPROVED TRANSMISSION GLASSES - Embodiments are directed to glass articles which are resistant to UV photodarkening, the glass articles having a thickness ≦1.3 mm and comprise UV absorbers such as Ti, V, Mn, Fe, Cu, Ce, Ge, Mo, Cr, Co and Ni, and combinations thereof, or alternatively comprising ZnO or SnO | 03-31-2016 |
Patent application number | Description | Published |
20100291353 | METHOD OF SEPARATING STRENGTHENED GLASS - A method of cutting a glass sheet that has been thermally or chemically strengthened along a predetermined line, axis, or direction with high speed and with minimum damage on the cut edges. The strengthened glass sheet may be an aluminoborosilicate glass material having at least one alkali metal oxide modifier, and the ratio | 11-18-2010 |
20110201490 | CRACK AND SCRATCH RESISTANT GLASS AND ENCLOSURES MADE THEREFROM - A glass and an enclosure, including windows, cover plates, and substrates for mobile electronic devices comprising the glass. The glass has a crack initiation threshold that is sufficient to withstand direct impact, has a retained strength following abrasion that is greater than soda lime and alkali aluminosilicate glasses, and is resistant to damage when scratched. The enclosure includes cover plates, windows, screens, and casings for mobile electronic devices and information terminal devices. | 08-18-2011 |
20120135226 | ION EXCHANGABLE GLASS WITH DEEP COMPRESSIVE LAYER AND HIGH DAMAGE THRESHOLD - Glasses comprising SiO | 05-31-2012 |
20120135852 | ALKALINE EARTH ALUMINO-BOROSILICATE CRACK RESISTANT GLASS - The present disclosure relates to glass articles for use as a touchscreen substrate or cover glass article for use in a portable electronic device, particularly an aluminoborosilicate glass being substantially free of alkalis, comprising at least 55 mol % SiO | 05-31-2012 |
20120135853 | GLASS ARTICLES/MATERIALS FOR USE AS TOUCHSCREEN SUBSTRATES - The present disclosure relates to glass articles for use as a touchscreen substrate for use in a portable electronic device, particularly comprising an alkali-free aluminosilicate glass exhibiting a high damage threshold of at least 1000gf, as measured by the lack of the presence of median/radial cracks when a load is applied to the glass using a Vickers indenter, a scratch resistance of at least 900gf, as measured by the lack of the presence of lateral cracks when a load is applied by a moving Knoop indenter and a linear coefficient of thermal expansion (CTE) over the temperature range 0-300° C. which satisfies the relationship: 25×10−7/° C.≦CTE≦40×10−7/° C. | 05-31-2012 |
20120277085 | METHODS FOR ENHANCING STRENGTH AND DURABILITY OF A GLASS ARTICLE - A method for strengthening an alkali-containing glass article including: contacting a standardized glass article and aqueous vapor at about 80 to 500° C. for 0.5 to 400 hours at atmospheric pressure. A method for making a damage resistant, low-alkali, glass article including: contacting a standardized glass article and aqueous vapor at about 100 to 600° C. for about 0.5 to about 200 hours at atmospheric pressure. A strengthened and durable glass article prepared by the disclosed methods is disclosed. A display system that can incorporate the glass article, as defined herein, is also disclosed. | 11-01-2012 |
20120282449 | GLASS WITH HIGH FRICTIVE DAMAGE RESISTANCE - A glass article exhibiting improved resistance to fictive surface damage and a method for making it, the method comprising removing a layer of glass from at least a portion of a surface of the article that is of a layer thickness at least effective to reduce the number and/or depth of flaws on the surface of the article, and then applying a friction-reducing coating to the portion of the article from which the layer of surface glass has been removed. | 11-08-2012 |
20130045375 | ION EXCHANGED GLASS WITH HIGH RESISTANCE TO SHARP CONTACT FAILURE AND ARTICLES MADE THEREFROM - An article comprising an ion-exchanged glass material that prevents sharp contact flaws from entering a central region of the material that is under central tension and thus causing failure of the material. The glass material may be a glass or glass ceramic having a surface layer under compression. In some embodiments, the depth of the compressive layer is greater than about 75 μm. The greater depth of layer prevents flaws from penetrating the compressive layer to the region under tension. | 02-21-2013 |
20130059157 | TRANSPARENT LAMINATES COMPRISING INTERMEDIATE OR ANOMALOUS GLASS - This disclosure is directed to laminates for transparent armor application and in particular to laminates comprising at least one layer of an intermediate or anomalous glass. Anomalous glasses include glasses with a SiO | 03-07-2013 |
20130122284 | ION EXCHANGEABLE GLASS WITH HIGH CRACK INITIATION THRESHOLD - Alkali aluminosilicate glasses that are resistant to damage due to sharp impact and capable of fast ion exchange are provided. The glasses comprise at least 4 mol % P | 05-16-2013 |
20130122306 | ACID STRENGTHENING OF GLASS - Disclosed herein are methods for strengthening glass articles having strength-limiting surface flaws, together with strengthened glass articles produced by such methods, and electronic devices incorporating the strengthened glass articles. The methods generally involve contacting the glass articles with a substantially fluoride-free aqueous acidic treating medium for a time at least sufficient to increase the rupture failure points of the glass articles. | 05-16-2013 |
20130122313 | ION EXCHANGEABLE GLASS WITH HIGH CRACK INITIATION THRESHOLD - Alkali aluminosilicate glasses that are resistant to damage due to sharp impact and capable of fast ion exchange are provided. The glasses comprise at least 4 mol % P | 05-16-2013 |
20130224492 | ION EXCHANGED GLASSES VIA NON-ERROR FUNCTION COMPRESSIVE STRESS PROFILES - Glasses with compressive stress profiles that allow higher surface compression and deeper depth of layer (DOL) than is allowable in glasses with stress profiles that follow the complementary error function at a given level of stored tension. In some instances, a buried layer or local maximum of increased compression, which can alter the direction of cracking systems, is present within the depth of layer. Theses compressive stress profiles are achieved by a three step process that includes a first ion exchange step to create compressive stress and depth of layer that follows the complimentary error function, a heat treatment at a temperature below the strain point of the glass to partially relax the stresses in the glass and diffuse larger alkali ions to a greater depth, and a re-ion-exchange at short times to re-establish high compressive stress at the surface. | 08-29-2013 |
20130236666 | GLASS WITH SURFACE AND CENTRAL REGIONS UNDER COMPRESSION - A glass article having an engineered stress profile. The central or core region of the glass is in compression and the surface or outer region of the glass is either under neutral stress or in compression. The outer surface region and the core region are separated by an intermediate region that is under tension. A flaw that penetrates the outer region in compression will propagate in the underlying tensile intermediate layer, but will not penetrate though the compressive core region of the glass. The compressive core region prevents flaws from penetrating through the thickness of the glass. | 09-12-2013 |
20140141226 | ION EXCHANGEABLE GLASSES HAVING HIGH HARDNESS AND HIGH MODULUS - Ion-exchangeable glasses having high hardness and high elastic modulus. The base cover glass formulation includes Na | 05-22-2014 |
20140329660 | CRACK AND SCRATCH RESISTANT GLASS AND ENCLOSURES MADE THEREFROM - A glass and an enclosure, including windows, cover plates, and substrates for mobile electronic devices comprising the glass. The glass has a crack initiation threshold that is sufficient to withstand direct impact, has a retained strength following abrasion that is greater than soda lime and alkali aluminosilicate glasses, and is resistant to damage when scratched. The enclosure includes cover plates, windows, screens, and casings for mobile electronic devices and information terminal devices. | 11-06-2014 |
20140338820 | SLIP AGENT FOR PROTECTING GLASS - This disclosure features use of a paper or polymer film that includes a slip agent that can transfer to its surfaces. Once the paper or film is pressed against a glass sheet, this will leave a thin surface roughness of slip agent that can prevent or reduce glass surface scratches from other surfaces or particles during shipping or finishing (e.g., cutting to size, conveyance of glass), thereby improving the yield of glass shipments between glass forming plants and customers. The thin discontinuous layer of slip agent remaining on the glass surface can be washed off easily in subsequent washing processes. The paper or film can have the slip agent imbibed within the paper or coated on it as a surface member. | 11-20-2014 |
20140342123 | SLIP AGENT FOR PROTECTING GLASS - This disclosure features use of a paper or polymer film that includes a slip agent that can transfer to its surfaces. Once the paper or film is pressed against a glass sheet, this will leave a thin surface roughness of slip agent that can prevent or reduce glass surface scratches from other surfaces or particles during shipping or finishing (e.g., cutting to size, conveyance of glass), thereby improving the yield of glass shipments between glass forming plants and customers. The thin discontinuous layer of slip agent remaining on the glass surface can be washed off easily in subsequent washing processes. The paper or film can have the slip agent imbibed within the paper or coated on it as a surface member. | 11-20-2014 |
20140342897 | Glass Articles/Materials For Use As Touchscreen Substrates - The present disclosure relates to glass articles for use as a touchscreen substrate for use in a portable electronic device, particularly comprising an alkali-free aluminosilicate glass exhibiting a high damage threshold of at least 1000 gf, as measured by the lack of the presence of median/radial cracks when a load is applied to the glass using a Vickers indenter, a scratch resistance of at least 900 gf, as measured by the lack of the presence of lateral cracks when a load is applied by a moving Knoop indenter and a linear coefficient of thermal expansion (CTE) over the temperature range 0-300° C. which satisfies the relationship: 25×10-7/° C.≦CTE≦40×10-7/° C. | 11-20-2014 |
20140370302 | Antimicrobial Glass Articles with Improved Strength and Methods of Making and Using Same - Described herein are various antimicrobial glass articles that have improved strength and resistance to discoloration. The improved antimicrobial glass articles described herein generally include a glass substrate with a compressive stress layer and an antimicrobial silver-containing region that each extend inward from a surface of the glass substrate to a specific depth. In some embodiments, the compressive stress layer has a compressive stress at the surface of about 500 MPa or greater and the compressive stress decreases monotonically from the surface into the depth of the glass substrate. Methods of making and using the glass articles are also described and include forming a compressive stress layer and forming an antimicrobial silver-containing region by preferentially exchanging a plurality of silver cations in a silver-containing medium for a specific plurality of first cations ions in the glass substrate. | 12-18-2014 |
20150037586 | HYBRID SODA-LIME SILICATE AND ALUMINOSILICATE GLASS ARTICLES - A glass article is provided having from greater than or equal to about 40 mol % to less than or equal to about 68 mol % SiO | 02-05-2015 |
20150064474 | Ion Exchangeable Glass, Glass Ceramics and Methods for Making the Same - Glass-ceramics and precursor glasses that are crystallizable to glass-ceramics are disclosed. The glass-ceramics of one or more embodiments include rutile, anatase, armalcolite or a combination thereof as the predominant crystalline phase. Such glasses and glass-ceramics may include compositions of, in mole %: SiO | 03-05-2015 |
20150225287 | ANTIMICROBIAL GLASS ARTICLES AND METHODS OF MAKING AND USING SAME - Described herein are various antimicrobial glass articles that have improved resistance to discoloration when exposed to harsh conditions. The improved antimicrobial glass articles described herein generally include a glass substrate that has a low concentration of nonbridging oxygen atoms, a compressive stress layer and an antimicrobial silver-containing region that each extend inward from a surface of the glass substrate to a specific depth, such that the glass article experiences little-to-no discoloration when exposed to harsh conditions. Methods of making and using the glass articles are also described. | 08-13-2015 |