Patent application number | Description | Published |
20080317522 | FUSER ASSEMBLY HAVING OIL RETENTION FEATURES - A fuser assembly includes a first end cap, and a second end cap spaced apart from the first end cap along an axis orthogonal to a sheet feed direction. A fuser belt is positioned between and supported by the first end cap and the second end cap to rotate around the axis in a belt moving direction at the nip corresponding to the sheet feed direction. A heater assembly is located in the hollow interior of the fuser belt. A plurality of ribs is positioned to contact the interior surface of the fuser belt. A first rib is connected to one of the first end cap and the heater assembly. A second rib is connected to one of the second end cap and the heater assembly. Each of the plurality of ribs is oriented to longitudinally extend at an acute angle with respect to the belt moving direction. | 12-25-2008 |
20120308281 | High Fusing Performance Externally Heated Fuser Roller - An externally heated fuser roller to achieve good fusing performance, long life and relatively quick warm-up time. The fuser roller is made up of a metal core, an insulation elastic layer, a heat transport layer and optionally a release layer such that the thickness of the heat transport layer is in the range of about 0.25 and about 1 mm, the effusivity value of the heat transport layer be equal to or greater than about 800 W√s(m | 12-06-2012 |
20140241748 | Self Lubricating Fuser and Method of Operation - A belt fuser assembly which dispenses lubricant oil or other depleted lubricant component to the inner surface of the fuser belt. The belt fuser assembly may include a lubricant dispenser positioned to be heated by the heating element of the fuser assembly for dispensing a lubricant oil to the inner surface of the fuser belt. A controller coupled to the heating element activates the heating element to generate heat at a fusing temperature during a fusing operation and at at least one second temperature greater than the fusing temperature during a lubricant dispensing operation so as to cause lubricant to dispense from the lubricant dispenser. | 08-28-2014 |
20140241763 | Self Lubricating Fuser and Method of Operation - A belt fuser assembly which dispenses lubricant oil or other depleted lubricant component to the inner surface of the fuser belt. The belt fuser assembly may include a lubricant dispenser positioned to be heated by the heating element of the fuser assembly for dispensing a lubricant oil to the inner surface of the fuser belt. The lubricant dispenser may include a reservoir containing the lubricant oil and an exit port for delivering the lubricant oil from the reservoir to the inner surface of the fuser belt upon the reservoir being heated by the heating element at a temperature above the fusing temperature of the belt fuser assembly. | 08-28-2014 |
20150063836 | Fuser Member Conditioning Systems and Methods - Disclosed is a method of conditioning a fusing member having a top-release layer. The method includes heating the top-release layer to at least the melting temperature of the top-release layer while rotating the fusing member and while no pressure member engages the top-release layer, and cooling the top-release layer to less than the melting temperature of the top-release layer while rotating the fusing member. Other methods and devices are disclosed. | 03-05-2015 |
Patent application number | Description | Published |
20080242566 | GEAR OIL COMPOSITION CONTAINING NANOMATERIAL - The present invention relates to a novel use of nanomaterials as a viscosity modifier and thermal conductivity improver for gear oil and other lubricating oil compositions. The gear oils of the instant invention have a higher viscosity index, higher shear stability, and improved thermal conductivity compared to currently available gear oils. The preferred nanoparticles also impart a reduction in the coefficient of friction, including reduced friction in the boundary lubrication regime. These properties are obtained by replacing part or all of the polymer thickener or viscosity index improver or some other part of the composition normally used in gear oils with nanomaterials of suitable shape, size, and composition. | 10-02-2008 |
20080287326 | Lubricants with enhanced thermal conductivity containing nanomaterial for automatic transmission fluids, power transmission fluids and hydraulic steering applications - A lubricant composition having an enhanced thermal conductivity, up to 80% greater than its conventional analogues, and methods of preparation for these fluids are identified. One preferred composition contains a base oil, nanomaterial, and a dispersing agent or surfactant for the purpose of stabilizing the nanomaterial. One preferred nanomaterial is a high thermal conductivity graphite, exceeding 80 W/m in thermal conductivity. The graphite is ground, milled, or naturally prepared to obtain a mean particle size less than 500 nm in diameter, and preferably less than 100 nm, and most preferably less than 50 nm. The graphite is dispersed in the fluid by one or more of various methods, including ultrasonication, milling, and chemical dispersion. Carbon nanostructures such as nanotubes, nanofibrils, and nanoparticles are another type of graphitic structure useful in the present invention. Other high thermal conductivity carbon materials are also acceptable. To confer long-term stability, the use of one or more chemical dispersants or surfactants is useful. The thermal conductivity enhancement, compared to the fluid without graphite, is proportional to the amount of nanomaterials added. The graphite nanomaterials contribute to the overall fluid viscosity, partly or completely eliminating the need for viscosity index improvers and providing a very high viscosity index. Particle size and dispersing chemistry is controlled to get the desired combination of viscosity and thermal conductivity increase from the base oil while controlling the amount of temporary viscosity loss in shear fields. The resulting fluids have unique properties due to the high thermal conductivity and high viscosity index of the suspended particles, as well as their small size. | 11-20-2008 |
20100022422 | High temperature shear stable nanographite dispersion lubricants with enhanced thermal conductivity and method for making - A process for producing a nanographite dispersion in a fluid wherein the thermal conductivity of the dispersion is enhanced from the base fluid by more than 10% for a 1% graphite dispersion. A high purity graphite with high crystallinity and reduced surface damage and oxidation is selected as the starting material. The starting material is subjected to a process of wet media milling in the presence of dispersant and solvent fluid. The mill temperature is controlled to control and reduce surface damage to yield a nanographite with flake shape and controlled aspect ratio until a particle size average of 300 nm diameter and 50 nm is obtained. The process recycles a portion of the milled material to increase the ratio of small particle distribution to large particles in an intermediate product with small and large particle bi-modal distribution. The large particle distribution is removed by a separation process such as centrifugation or filtration. | 01-28-2010 |
20110132227 | NANO GEL WAX - An aqueous gel wax formulation includes a cationic wax microemulsion and an anionically charged polishing agent having a particle size less than about 200 nanometers and optimally a quaternary ammonium substituted silicone and an amino functional silicone. The components combine to form a gel wax formulation which can be applied without buffing. | 06-09-2011 |
20130042378 | ANTI-BURN GARMENT - A protective garment for a human forearm. The protective garment includes a main body portion having opposing first and second longitudinal ends. There is an interior surface that faces the forearm and an exterior surface that faces away from the forearm. The main body portion includes an expandable wrist band coupled to the first longitudinal end of the main body portion. The exterior surface includes a second plurality of raised portions that is configured to dissipate heat transferred from a heated surface contacting the exterior surface. | 02-21-2013 |
20140366817 | Extended Operation Engine Coolant Composition - The invention relates to an engine coolant composition, and a method of increasing the operational life of a coolant composition in an engine, wherein an isononanoic acid is incorporated into the generally glycol based coolant fluid in place of nitrous acid or its salt to reduce pitting corrosion on iron containing surfaces. | 12-18-2014 |
Patent application number | Description | Published |
20100124448 | Resistive Heating Hot Roll Fuser - A fuser roll adapted to fuse toner on the surface of a recording medium is disclosed. The fuser roll includes a non-metallic core having an outer surface, and a resistive heating element covering at least a portion of the outer surface of the core. A current transmitter is provided for transmitting a current to said resistive heating element, and an insulation layer is provided for covering at least a portion of said resistive heating element. A toner release layer is provided for covering at least a portion of said insulation layer. | 05-20-2010 |
20100167065 | Thick Fusing Belt for a Color Electrophotographic Printer - An endless fusing thick belt for an electrographic imaging device having a flexible tubular configuration of predetermined diameter, said endless fusing thick belt comprising; an outside surface toner release layer comprised of a coating and a sleeve; a silicone rubber layer positioned inside said outside surface toner release layer; a rigid material layer positioned inside said silicone rubber layer; and a silicone base layer positioned inside and affixed to the internal surface of said polyimide layer using an adhesive. | 07-01-2010 |
20100303524 | Belt Fuser for an Electrophotographic Printer - A fuser and method of use for an electrophotographic imaging device that includes a lamp heater assembly; an endless fusing belt having a flexible tubular configuration and being positioned about the lamp heater assembly and spaced outwardly therefrom; a transparent or translucent pressure tube having an elongated tubular body and a pair of opposite ends, the body being substantially transparent to passage of radiant heat therethrough; a pressure tube support assembly having a frame and a pair of bearings mounted on the frame spaced apart from one another and supporting the pressure tube at the opposite ends of the tubular body thereof such that the tubular body of the pressure tube is positioned around the lamp heater assembly and inside the fusing belt and enables radiant heat generated by the lamp heater to pass through the transparent or translucent pressure tube and heat the fusing belt | 12-02-2010 |
20110103853 | Flat Heater for Electrophotographic Belt Fusing Systems, and Methods of Making Same - An image-forming device includes a belt based fuser for fixing an image to a media substrate. The fuser includes a heater having a base component with at least one heating element disposed thereon. The heater further includes a covering layer covering the at least one heating element providing a substantially even surface to abut a belt. Unevenness, which may be present on the substantially even surface, has a height, defined by a base and a peak, of less than about 10 μm. A process for producing the heater is also disclosed. The process includes disposing one or more heating elements on a base component of the heater, covering the heating elements of the fuser heater with a covering layer and providing a substantially even outer surface to abut a fuser belt. | 05-05-2011 |
20120070207 | Fuser for an Electrophotographic Imaging Device - A fuser for an electrophotographic imaging device according to one embodiment includes a stationary pressure member having an elongated body with an outer surface. The pressure member is substantially transparent and/or substantially translucent and permits the passage of radiant heat therethrough. An endless fusing belt having a flexible tubular configuration is rotatably positioned about the pressure member. The pressure member is positioned around a heating lamp for transmitting radiant heat through the pressure member to an inner surface of the fusing belt. A backup roll opposes the fusing belt. The pressure member is configured to apply pressure contact to the fusing belt against the backup roll to form a fuser nip between the backup roll and a segment of the fusing belt. | 03-22-2012 |
20120308281 | High Fusing Performance Externally Heated Fuser Roller - An externally heated fuser roller to achieve good fusing performance, long life and relatively quick warm-up time. The fuser roller is made up of a metal core, an insulation elastic layer, a heat transport layer and optionally a release layer such that the thickness of the heat transport layer is in the range of about 0.25 and about 1 mm, the effusivity value of the heat transport layer be equal to or greater than about 800 W√s(m | 12-06-2012 |
Patent application number | Description | Published |
20100177488 | Vinyl Addition Polycyclic Olefin Polymers Prepared With Non-Olefinic Chain Transfer Agents And Uses Thereof - A method of polymerizing poly(cyclic)olefin monomers encompassing (a) combining a monomer composition containing the poly(cyclic)olefin monomers, a non-olefinic chain transfer agent and an activator compound to faun a mixture; (b) heating the mixture; and (c) adding a polymerization catalyst containing Ni and/or Pd. The non-olefinic chain transfer agent includes one or more compounds selected from H | 07-15-2010 |
20110070543 | Aqueous Base-Developable Negative-Tone Films Based On Functionalized Norbornene Polymers - Embodiments in accordance with the present invention encompass negative-tone, aqueous base developable, self-imageable polymer compositions useful for forming films that can be patterned to create structures for microelectronic devices, microelectronic packaging, microelectromechanical systems, optoelectronic devices and displays. | 03-24-2011 |
20110318882 | METHOD OF RESTRICTING CHIP MOVEMENT UPON BONDING TO RIGID SUBSTRATE USING SPRAY COATABLE ADHESIVE - A method of bonding a chip to a wafer at precise alignment suitable for fabricating a heater chip in an ink jet printhead is provided. The method includes spray coating an adhesive composition on a surface of a substrate, aligning and tacking at least one chip to the substrate coated with the adhesive composition, exposing the substrate tacked with at least one chip coated with the adhesive composition to radiation and heat, and performing thermal compression bonding. The method uses a spray coatable adhesive composition comprising a thermally activated adhesive and a photoacid generator. | 12-29-2011 |
20110319513 | SPRAY COATABLE ADHESIVE FOR BONDING SILICON DIES TO RIGID SUBSTRATES - A spray coatable adhesive composition used for bonding silicon dies to a rigid substrate, preferable a silicon substrate is disclosed. The adhesive composition includes an epoxy based resin, a thermal acid generator, a photoacid generator and a solvent. The epoxy based resin includes a mixture of a solid bisphenol A epoxy resin and a liquid or semi-liquid hydrogenated bisphenol A epoxy resin at a weight ratio ranging from about 80:20 to about 65:35. The adhesive composition has a low viscosity which allows it to be spray coated on a rigid substrate and form thin film adhesive which allows silicon dies to be bonded with precise placement on the silicon substrate. | 12-29-2011 |
20120082933 | FORMULATIONS FOR ENVIRONMENTALLY FRIENDLY PHOTORESIST FILM LAYERS - Environmentally friendly thick film layers for a micro-fluid ejection head and micro-fluid ejection heads are disclosed. The environmentally friendly thick film layer includes a negative photoresist layer derived from a composition comprising a multi-functional epoxy compound, a low molecular weight polymeric difunctional epoxy compound, a monomeric difunctional epoxy compound, a methide-based photoacid generator that does not contain antimony, a chromophore and an aryl ketone solvent. Optionally the photoresist layer contains an adhesion enhancer. The negative photoresist layer is environmentally friendly and provides good resolution, well defined critical dimensions, straight side walls, and a large processing window. | 04-05-2012 |
20120236076 | PRINTHEADS AND METHOD FOR ASSEMBLING PRINTHEADS - Disclosed is a printhead for a printer that includes a plurality of ejection chip units. Each ejection chip unit of the plurality of ejection chip units is configured to eject at least one fluid. The printhead further includes a plurality of supporting units. Each supporting unit of the plurality of supporting units is fluidly coupled with a corresponding ejection chip unit. The each supporting unit includes a plurality of trenches adapted to receive an adhesive to facilitate attachment of the each supporting unit with the corresponding ejection chip unit. Furthermore, the printhead includes a base unit fluidly coupled with the each supporting unit of the plurality of supporting units. The base unit is adapted to provide the at least one fluid to the each ejection chip unit through a corresponding to supporting unit. Further disclosed is a method for assembling the printhead. | 09-20-2012 |
20120274707 | EJECTION DEVICES FOR INKJET PRINTERS AND METHOD FOR FABRICATING EJECTION DEVICES - Disclosed is an ejection device for an inkjet printer that includes an ejection chip having a substrate and at least one fluid ejecting element. The ejection device further includes a fluidic structure configured over the ejection chip. The fluidic structure includes a nozzle plate composed of an organic material and includes a plurality of nozzles. The fluidic structure further includes a flow feature layer configured in between the ejection chip and the nozzle plate. The flow feature layer is composed of an organic material and includes a plurality of flow features. Furthermore, the fluidic structure includes a liner layer encapsulating the nozzle plate. The liner layer further at least partially encapsulates each flow feature of the plurality of flow features. The liner layer is composed of an inorganic material. Further disclosed is a method for fabricating the ejection device. | 11-01-2012 |
20120293584 | FLUID EJECTION DEVICES AND METHODS FOR FABRICATING FLUID EJECTION DEVICES - Disclosed is a fluid ejection device for an inkjet printer that includes a substrate having at least one fluid flow channel configured within a bottom portion of the substrate. Each fluid flow channel of the at least one fluid flow channel is configured by etching the bottom portion. The substrate also includes a plurality of fluid flow vias configured within a top portion of the substrate. Each fluid flow via of the plurality of fluid flow vias is configured by etching the top portion. The each fluid flow via is further configured to be in fluid communication with a corresponding fluid flow channel through an isotropically etched cavity configured below the each fluid flow via and fluidically coupled to the corresponding fluid flow channel. The fluid ejection device also includes a flow feature to layer and a nozzle plate. Further disclosed are methods for fabricating fluid ejection devices. | 11-22-2012 |
20130048601 | Use of Hydrogen-Oxygen Plasma for Forming Hydroxyl Functional Groups on a Polymer Surface - A method for improving adhesion between polymeric materials is provided. The method includes treating a surface of a first polymeric material with plasma of oxygen gas and hydrogen-containing gas. The first polymeric material may be a fully cured polymeric material. A second polymeric material may then be deposited on the plasma treated surface of the first polymeric material. The second polymeric material may be an uncured polymeric material. This plasma treatment may be used in improving the adhesion between polymeric components of an inkjet printer. It provides good adhesion between the polymeric components of the inkjet printer even after long exposure to ink. | 02-28-2013 |
20130183450 | NON-PHOTOSENSITIVE SILOXANE COATING FOR PROCESSING HYDROPHOBIC PHOTOIMAGEABLE NOZZLE PLATE - A method of forming a patterned photoresist layer having a hydrophobic surface is provided. The method includes forming a photoresist layer on a substrate and image patterning. The photoresist layer may comprise a polymeric material. The imaged photoresist layer may then undergo a two-stage post-exposure bake. A surface treatment may be performed on the photoresist layer in between the two-stage post-exposure bake. The surface treatment may include applying a siloxane solution on a partially post-exposure baked photoresist layer. The post-exposure baked photoresist layer may then be developed to form the patterned photoresist layer. The method may be used to form a hydrophobic photoimageable nozzle plate of a micro-fluid ejection head having improved mechanical properties and stable hydrophobic properties. | 07-18-2013 |
20130284694 | EJECTION DEVICES FOR INKJET PRINTERS AND METHOD FOR FABRICATING EJECTION DEVICES - Disclosed is an ejection device for an inkjet printer that includes an ejection chip having a substrate and at least one fluid ejecting element. The ejection device further includes a fluidic structure configured over the ejection chip. The fluidic structure includes a nozzle plate composed of an organic material and includes a plurality of nozzles. The fluidic structure further includes a flow feature layer configured in between the ejection chip and the nozzle plate. The flow feature layer is composed of an organic material and includes a plurality of flow features. Furthermore, the fluidic structure includes a liner layer encapsulating the nozzle plate. The liner layer further at least partially encapsulates each flow feature of the plurality of flow features. The liner layer is composed of an inorganic material. Further disclosed is a method for fabricating the ejection device. | 10-31-2013 |
20140038112 | AQUEOUS BASE-DEVELOPABLE NEGATIVE-TONE FILMS BASED ON FUNCTIONALIZED NORBORNENE POLYMERS - Embodiments in accordance with the present invention encompass negative-tone, aqueous base developable, self-imagable polymer compositions useful for forming films that can be patterned to create structures for microelectronic devices, microelectronic packaging, microelectromechanical systems, optoelectronic devices and displays. | 02-06-2014 |
20140203114 | NON-PHOTOSENSITIVE SILOXANE COATING FOR PROCESSING HYDROPHOBIC PHOTOIMAGEABLE NOZZLE PLATE - A method of forming a patterned photoresist layer having a hydrophobic surface is provided. The method includes forming a photoresist layer on a substrate and image patterning. The photoresist layer may comprise a polymeric material. The imaged photoresist layer may then undergo a two-stage post-exposure bake. A surface treatment may be performed on the photoresist layer in between the two-stage post-exposure bake. The surface treatment may include applying a siloxane solution on a partially post-exposure baked photoresist layer. The post-exposure baked photoresist layer may then be developed to form the patterned photoresist layer. The method may be used to form a hydrophobic photoimageable nozzle plate of a micro-fluid ejection head having improved mechanical properties and stable hydrophobic properties. | 07-24-2014 |