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| Number | Title | Issue Date |
| 8105222 | Roller device for a toner cartridge A roller device for a toner cartridge includes a spindle and a roller body. The roller body has a foam layer disposed around the spindle, and an outer tube disposed around the foam layer. Both of the outer tube and the foam layer are made of a thermoplastic material... | 01/31/2012 |
| 8100817 | Press roller The invention provides a press roller, having a roller jacket made of plastic material, for treating a web of paper, board, tissue or another fibrous material in a machine for the manufacturing and/or finishing thereof. The aim of the invention is to enlarge the app... | 01/24/2012 |
| 8092359 | Fuser member and fuser member surface layer A fuser member for toner fusing systems and processes. This fuser member has a fuser base and a fusing surface layer, and the fusing surface layer contains a fluoroelastomer and filler particles. The filler particles have a mean particle diameter greater than 5 micr... | 01/10/2012 |
| 8079943 | Developing roller including carbon nanotubes for electrophotographic device and method for fabricating the developing roller A development roller for electrophotographic device and a method of making the development roller are disclosed. The development roller according to the present invention includes a central shaft and a roller body. The roller body is composed of an elastic polymer m... | 12/20/2011 |
| 8066626 | Conductive rubber member The conductive rubber member of the invention has a conductive elastic layer to which conductivity has been imparted and which serves as an outermost layer, and a surface-treated layer formed through impregnating a surface of the conductive elastic layer with a surf... | 11/29/2011 |
| 8007426 | Developing roller A developing roller that can form a toner image with high quality includes: a supporting shaft, and at least one resin layer formed on a peripheral face of the supporting shaft, the resin layer containing carbon black in which a number average Feret's diameter is in... | 08/30/2011 |
| 7922637 | Conductive roller The present invention provides a conductive roller which has excellent resilience in response to deformation and exhibits small variation in electrical resistance. The conductive roller has a metallic core, a conductive elastic layer formed on the outer surface of t... | 04/12/2011 |
| 7896791 | Conductive roller and inspection method therefor To provide a conductive roller which does not cause defective images with, for example, black lines, which would otherwise be caused by current leakage due to aggregation of carbon black particles or a similar phenomenon, and a method for inspecting the roller. ... | 03/01/2011 |
| 7744515 | Conductive roller and inspection method therefor A conductive roller which can form images of consistent quality and does not cause image failures such as formation of blank spots and a method for inspecting the roller. The conductive roller having a metallic core and at least one rubber elastic layer provided on ... | 06/29/2010 |
| 7727135 | Conductive rubber roller A conductive rubber roller comprising a conductive core material and provided thereon a rubber layer; the rubber layer being formed by using a rubber composition containing as rubber components at least a polar rubber and an ethylene oxide-propylene oxide-allyl glyc... | 06/01/2010 |
| 7708677 | Plastic-coated roller, especially tension roller for a belt drive The invention provides a plastic-sheathed roller, typically a tension roller of plastic for a belt drive. The roller comprises a wheel comprising an inner ring and an outer ring that are connected through radially oriented ribs arranged spaced apart on a periphery a... | 05/04/2010 |
| 7699764 | Fixing roller Disclosed is a fixing roller which comprises a core 16, a porous material layer 22 disposed in surrounding relation to an outer peripheral surface of the core 16, and a thin-walled metal sleeve 26 covering an outer peripheral surface of t... | 04/20/2010 |
| 7544158 | Electroconductive rubber roller An electroconductive rubber roller constituted of an electroconductive metal core and an electroconductive crosslinked rubber layer including an epichlorohydrin-based rubber, wherein the epichlorohydrin-based rubber is at least one copolymer selected from the group ... | 06/09/2009 |
| 7445588 | Electroconductive roller An electroconductive roller including an electroconductive cellular material layer, comprised of a polyurethane composition, which has an average foamed cell diameter not more than 100 μm and a variation ΔD of the foamed cell diameter not more than 50 μm. The ele... | 11/04/2008 |
| 7425125 | Roller for forming noodles and the like A roller (1) for forming noodles and the like (W) comprises a roller body (2), an intermediate layer (4) and a fluoropolymer layer (3). The intermediate layer (4) is formed from a thermally sprayed material with open cells such as ... | 09/16/2008 |
| 7395759 | Sleeve for a printing machine The invention relates to a sleeve, particularly a rubber blanket sheath, for a printing machine. The sleeve (10) has a two-layer structure comprising an internal layer designed as support layer (11), and an external layer designed as cover layer (12... | 07/08/2008 |
| 7381514 | Stabilization of fluorinated silicone fuser release agents using mercapto functional silicones A fuser member having a substrate, an outer layer with a fluoropolymer, and a release agent material coating on the outer layer, wherein the release agent material coating contains (a) a blend with a mercapto functional release agent having the following formula II:... | 06/03/2008 |
| 7381174 | Discharging roller, method of manufacturing the same, and recording apparatus incorporating the same In order to manufacture a discharging roller which discharges a recording medium from a recording apparatus, there are a first die formed with a first recess extending in an axial direction of a shaft portion of the discharging roller, and a second die formed with a... | 06/03/2008 |
| 7374527 | Rubber roller for image-forming apparatus A rubber roller, for use in an image-forming apparatus, which is formed by molding a rubber composition into the shape of a roller. In the rubber roller, a complex elastic modulus E* of rubber and a surface roughness Rz of the rubber roller satisfy a relationship in... | 05/20/2008 |
| 7367554 | Member for preventing feeding of a plurality of sheets at a time A member for preventing feeding of a plurality of sheets at a time including a composition containing a resin component. Not less than 10 parts by mass nor more than 100 parts by mass of a polyester thermoplastic elastomer is contained in 100 parts by mass of the re... | 05/06/2008 |
| 7356293 | Toner transport roller A toner transport roller (10) including a sealing member (3), for preventing leak of toner, which contacts a peripheral surface of a rubber roller (1) thereof slidably. The toner transport roller (10) contains 3 to 50 parts by mass of alu... | 04/08/2008 |
| 7351512 | Overcoat for a polymer sleeve member for a blanket cylinder and a method for making the overcoat This invention relates to a polymer sleeve including a polymer sidewall and a ceramer outer coating and a method for producing the polymer sleeve for use with a blanket cylinder in an electrophotographic process. ... | 04/01/2008 |
| 7347808 | Polyurethane rolls and methods of manufacturing Rolls having a polyurethane elastomer formed from a polyurethane mixture, wherein the polyurethane mixture comprises polydiene, tri-functional polyol curative, an additional graft polymer curative having a molecular weight of at least about 800 and comprising diol, ... | 03/25/2008 |
| 7348058 | Electrically conductive roll An inexpensive electrically conductive roll which is easily produced compared with conventional rolls, offers stable adhesion at the interface with time lapse after mixing adhesive components, which is not affected by environment during storage of the core after bei... | 03/25/2008 |
| 7330200 | Thermal processor employing replaceable sleeve A thermal processor for thermally developing an image in an imaging material. The processor includes an oven, at least one rotatable member positioned within oven, and a sleeve adapted to slideably fit over and selectively couple to at least a portion of the rotatab... | 02/12/2008 |
| 7322917 | Embossing cylinder with interchangeable sleeve and with system for locking the sleeve at the ends and embossing machine comprising said cylinder The rotating cylinder for processing a web material comprises an essentially rigid cylindrical core (13), on which is fitted an interchangeable sleeve (45) of elastically expandable material whose rigidity is less than that of the material of the core;... | 01/29/2008 |
| 7321746 | Image heating apparatus and pressure roller used in the apparatus An image heating apparatus for heating an image formed on a recording material includes a heating device which heats the image formed on the recording material, and a pressure roller which forms a nip portion in cooperation with the heating device, with the recordin... | 01/22/2008 |
| 7313350 | Developing apparatus and image forming apparatus A developing apparatus develops an electrostatic latent image formed on a photoconductive drum with toner into a toner image. A developing roller has a surface on which a thin layer of toner is formed. The developing roller has a ten-point height of irregularities R... | 12/25/2007 |
| 7300055 | Image forming apparatus The object is to provide an image forming apparatus in which the copy sheet can be transferred with stable velocity and high accuracy even if there is variation in diameter due to machining tolerance. A pair of roller for feeding copy sheet pinching the sheet betwee... | 11/27/2007 |
| 7294377 | Fluoroelastomer members and curing methods using biphenyl and amino silane having amino functionality A fuser member with a supporting substrate having an outer surface layer of a fluoroelastomer, and the fluoroelastomer outer surface layer is prepared by: a) dissolving a fluoroelastomer; b) adding and reacting a biphenyl compound and an amino silane having amino fu... | 11/13/2007 |
| 7291399 | Fuser fluid compositions Disclosed is a fuser member comprising a substrate, a layer thereover comprising a polymer or an elastomer, and, on the layer, a coating including mercapto- and amino-functionalities comprising from about 0.05 mole percent to about 1.00 mole percent mercapto groups ... | 11/06/2007 |
| 7287974 | Calender arrangement A calender arrangement for calendering a material web, in particular a paper web, having a shoe roll and a mating roll, between which an extended nip is formed, through which the material web can be guided. The shoe roll includes a revolving shell, which is fixed to... | 10/30/2007 |
| 7288058 | Semi-conductive roll A semi-conductive roll is provided including a shaft, a low-hardness base layer formed on an outer circumferential surface of the shaft, and a coating layer formed by coating the low-hardness base layer radially outwardly. The coating layer includes one of a rubber ... | 10/30/2007 |
| 7284649 | Sheet feeding roller A sheet feeding roller, available at a lower cost, having lower hardness with securing both abrasion resistance and sustainability of friction coefficient. The sheet feeding roller comprises a hub, an inner layer provided on an outer peripheral surface of the hub, a... | 10/23/2007 |
| 7273687 | Toner fuser member having release layer formed from glycidyl end-capped polymer and perfluoroalkyl glycidyl-reactive compound A toner fuser member has a substrate, on which is formed a toner release surface layer from a composition that includes: about 95 wt. % to about 99.9 wt. % of a cross-linked, glycidyl end-capped bisphenolic polymer having the formula | 09/25/2007 |
| 7261680 | Stress and/or temperature-indicating composition for roll covers An industrial roll includes: a substantially cylindrical core and a cover overlying the adhesive layer. The cover typically comprises a polymeric top stock layer which comprises a mixture of a polymeric material and at least one of a piezochromic material and a ther... | 08/28/2007 |
| 7241253 | Fuser roll with improved heating performance A roll cover particularly suitable for a fuser roll has an intermediate layer on the roll body and an outer surface layer including heat transfer bodies therein. The intermediate layer is a graphite sheet having legs extending along the axial extent of the roll body... | 07/10/2007 |
| 7229398 | Circular-shaped metal structure and method of fabricating the same A circular-shaped metal structure is fabricated by plastic-working and has a wall thickness in the range of 0.03 mm to 0.09 mm both inclusive. A film composed of one of (a) silicon and fluorocarbon resin and (b) copper is coated on a surface of the circular-shaped m... | 06/12/2007 |
| 7226282 | Charge roller of developing device for image forming apparatus, method for fabricating the same and tool for fabricating charge roller A method of manufacturing a charge roller utilizes a foam rubber substance where epichlorohydrin oxide rubber and an acrylonitrile butadiene rubber are mixed at a ratio of 5:95, or utilizing a crosslinking rubber substance consisting of epichlorohydrin oxide rubber ... | 06/05/2007 |
| 7220796 | Conductive elastomer composition, conductive member using conductive elastomer composition, image-forming apparatus having conductive member A conductive elastomer composition includes an ionic-conductive elastomer component, which contains an anion-containing salt having a fluoro group (F—) and a sulfonyl group (—SO2—). The conductive elastomer composition has a volume charge not more t... | 05/22/2007 |
