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| Number | Title | Issue Date |
| 7016061 | Load balancing for raster image processing across a printing system A method and apparatus which dynamically determines if the raster image processing (RIP) for a print job data file is more efficiently performed by the host computer or by the printer in a printing system. The entire printing process is monitored and, based on a mod... | 03/21/2006 |
| 6954753 | Transparent electronic safety deposit box A secure electronic storage system for digital information administered by a third party and accessible over a communications network. Sensitive information in digital format is stored in a secure database located at a physically remote storage facility which appear... | 10/11/2005 |
| 6856430 | Calculation of toner usage A method and apparatus which generates a copy of the print data file for a print job and utilizes the copied data file to calculate the amount of marking material required to print the print job while allowing the processing of the print job to proceed without inter... | 02/15/2005 |
| 6854654 | Use of bar code to specify media type in an imaging device A method of packaging print media in combination with a printing device enables the printing device to automatically determine the type of media, and its characteristics and attributes, loaded in a media input tray. The print media package includes a pre-cut or perf... | 02/15/2005 |
| 6779747 | Intelligent document shredder device A method for shredding a document which renders the information unintelligible and prevents or minimizes reassembly of the shredded document reconstruction of the information contained in the document. The ability to reassembly a shredded document is greatly reduced... | 08/24/2004 |
| 6771820 | Encoding information within text printed on a page using differing gray or color levels A document processing system for imperceptibly encoding information in displayed images or text. Printed text or other images are modified using gray levels to encode information within existing text or images. The text is modified using digital processing to provid... | 08/03/2004 |
| 6753977 | Machine-readable information embedded on a document Machine-readable information provided on a printed document in the form of printed marks which are not visually perceptible to the human eye. The printed marks are of a combination of sufficiently small size and selected color which renders the printed marks visuall... | 06/22/2004 |
| 6646768 | Single automatic document feeder sensor for media leading edge and top cover being opened detection A single plate flatbed scanner utilizing a single sensor to detect both opening of a lid covering the plate and the leading edge of an automatically fed document. The flatbed scanner includes a contact glass plate defining a flatbed scanning area where a ... | 11/11/2003 |
| 6621589 | Print job processing in a printer network using selected printer attributes A central print system in which print jobs are directed to a particular print resource based on a set of print job attributes specified by an end user at the time the print job is submitted. The central print system provides intent-based printing which al... | 09/16/2003 |
| 6598795 | Use of bar code to specify media type in an imaging device A method of packaging print media in combination with a printing device enables the printing device to automatically determine the type of media, and its characteristics and attributes, loaded in a media input tray. The print media package includes a pre-... | 07/29/2003 |
| 6559965 | Method and apparatus for establishing two-way communication with a remote printer A method for establishing two-way communications between a host system and a device when the address of the device is initially unknown. The host system submits a job to a device with the job including address and other information required for the device... | 05/06/2003 |
| 6483999 | Automatic interrupt for image forming devices A combination printer/copier which utilizes the page sensor in the document feeder and/or the lid to trigger an interrupt sequence. The interrupt sequence queries the user for the interrupt copy job parameters. Once these parameters are entered, or the us... | 11/19/2002 |
| 6393233 | Printer fuser power management An electrophotographic imaging device having a controller including power management circuitry managing the distribution of electrical power to an image fixing device and other electrically powered components. The power management circuitry manages the po... | 05/21/2002 |
| 6315473 | Multiple sensor continuous media detection A sensor assembly for measuring the displacement or position of a movable member. The sensor assembly utilizes two or more smaller, less accurate sensors to perform the function of a single, more accurate larger sensor. The resolution of each of the small... | 11/13/2001 |
| 6275664 | Predicting supplies required for completion of unattended print jobs A method and apparatus for determining whether or not sufficient consumable supplies such as toner or ink and print media, for example, are available to an imaging device such as a printer to complete a submitted print job. The method determines the amoun... | 08/14/2001 |
| 5686193 | Multilayered sendust films with a gas-doped sendust seed layer A layered magnetic structure with a seed layer on a substrate and a bulk layer on the seed layer. The seed layer is a gas-doped sendust layer with a thickness of 100-800 Å. The bulk layer is sendust with a thickness of 0.3-10.0 μm. The seed layer and th... | 11/11/1997 |
| 5666246 | Magnetic storage system with canted hardbias magnetoresistive head A magnetic storage system in which a magnetoresistive (MR) transducer utilizes a high coercivity magnetic material to produce a bias field for achieving higher signal output with low currents for narrow track width applications. Strips of high coercivity ... | 09/09/1997 |
| 5664316 | Method of manufacturing magnetoresistive read transducer having a contiguous longitudinal bias layer A magnetoresistive (MR) read transducer having passive end regions separated by a central active region in which an MR layer is formed over substantially only the central active region and in which a magnetic bias layers is formed in each passive end regi... | 09/09/1997 |
| 5617277 | Magnetoresistive read head with back filled gap insulation layers A magnetic disk storage system with high linear resolution magnetoresistive (MR) head or heads comprising a dielectric substrate, a first magnetic shield, a first gap insulation layer, an MR stripe element, conductive leads, a second gap insulation layer,... | 04/01/1997 |
| 5603156 | Lapping process for minimizing shorts and element recession at magnetic head air bearing surface A method of lapping the air bearing surface of a magnetoresistive head which minimizes the likelihood of interelement shorts at the air bearing surface is described. In a final, linear lapping phase, the air bearing surface is lapped back and forth parall... | 02/18/1997 |
| 5604073 | Azo dyes as adhesion promotion additive in polydimethylglutarimide In a bi-layer lift-off process, the adhesion characteristics of a PMGI release layer are substantially improved by the use of ortho-hydroxy substituted 4-phenylazo compounds (azo dyes), a class of nonactinic dyes, as an adhesion promoter additive. These a... | 02/18/1997 |
| 5600880 | Process for forming vertical gap in a thin film magnetic transducer In the manufacture of a thin-film magnetic head having a vertical gap, auxiliary support is provided at the ends of a gap wall prior to formation of the magnetic poles. In a preferred embodiment, a pit is defined in a substrate and a release layer is depo... | 02/11/1997 |
| 5598308 | Magnetoresistive sensor having multilayer thin film structure A magnetoresistive (MR) sensor comprising a layered structure having at least one trilayer comprising a first and a second thin film ferromagnetic layers separated by and in interfacial contact with a third thin film non-metallic magnetic layer. A fourth ... | 01/28/1997 |
| 5588199 | Lapping process for a single element magnetoresistive head A method of lapping magnetoresistive (MR) heads individually which provides an MR element having a desired height with minimized skew is described. During fabrication of the MR head, one or more shunt resistors are formed between the edge of the MR elemen... | 12/31/1996 |
| 5574605 | Antiferromagnetic exchange coupling in magnetoresistive spin valve sensors A magnetoresistive read sensor based on the spin valve effect in which a component of the read element resistance varies as the cosine of the angle between the magnetization directions in two adjacent magnetic layers is described. The sensor read element ... | 11/12/1996 |
| 5570356 | High bandwidth communications system having multiple serial links A data communication system includes a phase splitting circuit to split a high speed parallel data word into a number of individual parallel data bytes, a byte multiplexor for each of the phases of a phase splitting circuit, encoding and serialization cir... | 10/29/1996 |
| 5560097 | Method of making a integrated transducer-suspension assembly for vertical recording An integral combination magnetic transducer and suspension assembly suitable for use in both contact recording and in winchester-type applications. A generally rectangular elongated flat suspension member includes a vertical-type inductive read/write tran... | 10/01/1996 |
| 5559051 | Process for manufacturing a silicon chip with an integrated magnetoresistive head mounted on a slider A process of making an MR head having its MR stripe protected from electro-static discharge (ESD) on a slider, such as titanium carbide. The MR stripe is protected by a plurality of silicon integrated circuit devices which conduct ESD-induced current from... | 09/24/1996 |
| 5543989 | Magnetic storage system including a magnetoresistive read sensor with sendust shield utilizing an optimized sendust seed layer Laminated films of SiAlFe alloy (sendust) providing optimized magnetic and mechanical properties for magnetic shield and magnetic pole tip applications are described. A multilayered magnetic structure including a seed layer of a first sendust alloy and a ... | 08/06/1996 |
| 5535073 | Tribo-attractive contact data storage system A contact magnetic storage system in which the slider, which supports the magnetic read/write head, is in physical contact with a rigid magnetic storage medium during system operation at a selected operating speed. The slider material has a load versus fr... | 07/09/1996 |
| 5532109 | Azo dyes as adhesion promotion additive in polydimethylglutarimide In a bi-layer lift-off process, the adhesion characteristics of a PMGI release layer are substantially improved by the use of ortho-hydroxy substituted 4-phenylazo compounds (azo dyes), a class of nonactinic dyes, as an adhesion promoter additive. These a... | 07/02/1996 |
| 5528819 | Combination transducer/slider/suspension and method for making A disk drive assembly in which the suspension, slider and transducer are integrated and fabricated to produce a combination assembly. The combination transducer-slider-suspension assembly is batch produced by forming a plurality of the combination assembl... | 06/25/1996 |
| 5523898 | Partial MR sensor bias current during write In a magnetoresistive read/inductive write magnetic transducer, magnetic stability of the magnetoresistive read sensor is improved by reducing the bias current to the magnetoresistive read sensor to a predetermined value during a period when a write curre... | 06/04/1996 |
| 5508866 | Magnetoresistive sensor having exchange-coupled stabilization for transverse bias layer In a magnetoresistive (MR) read sensor in which the MR layer is transversely biased by a soft magnetic layer separated from the MR layer by a nonmagnetic spacer layer an antiferromagnetic stabilization layer of NiO provides a stabilizing exchange-coupled ... | 04/16/1996 |
| 5503870 | Method for producing thin film magnetic structure A method for producing a magnetic structure, such as a thin film magnetic head, in which the magnetic and electrical characteristics of magnetic material are tailored to produce magnetic and electrical characteristics in selected localized areas of the ma... | 04/02/1996 |
| 5492605 | Ion beam induced sputtered multilayered magnetic structures An ion beam sputter deposition system and method for the fabrication of multilayered thin film structures is described. Selected combinations of ion beam gases and energies matched to the selected target materials optimize the physical, magnetic and elect... | 02/20/1996 |
| 5492720 | Method of manufacturing a magnetoresistive sensor In a magnetoresistive (MR) read sensor in which the MR layer is transversely biased by a soft magnetic layer separated from the MR layer by a nonmagnetic spacer layer an antiferromagnetic stabilization layer of NiO provides a stabilizing exchange-coupled ... | 02/20/1996 |
| 5491605 | Shorted magnetoresistive head elements for electrical overstress and electrostatic discharge protection In a magnetic read/write transducer, the elements of the magnetoresistive (MR) and inductive heads are shorted together and to the slider substrate to provide a low resistance, conductive path bypassing the MR sensor element and minimizing electrical curr... | 02/13/1996 |
| 5476680 | Method for manufacturing granular multilayer mangetoresistive sensor A magnetoresistive read sensor incorporates a granular multilayer sensing element comprising a plurality of layers of generally flat particles of a ferromagnetic material embedded in a nonmagnetic electrically conductive material. A bias layer separated f... | 12/19/1995 |
| 5465186 | Shorted magnetoresistive head leads for electrical overstress and electrostatic discharge protection during manufacture of a magnetic storage system The magnetoresistive (MR) sensor in a magnetic read/write transducer is protected against the effects of electrical overstress and electrostatic discharge during the manufacture and assembly of a magnetic storage system. The conductive leads of a magnetor... | 11/07/1995 |
