Bizarre Patents
Nicotine Containing Dental Floss
Keep away cavities and cancer at the same time.
PatentStorm News
Make the Most of Our Site
See this month's Top Inventors and Most Cited Patents.
Stay on top of the latest innovations by subscribing to an RSS feed.
Registered users: Manage your profile.
| Number | Title | Issue Date |
| 8150295 | Charging member, charging device including the charging member, process cartridge including the charging device and image forming apparatus including the process cartridge A charging member is provided in which a minute gap between an image support body and the charging member is set widely but even so the charging member does not abnormally discharge easily, the charging member includes a conductive support body 903, an electr... | 04/03/2012 |
| 8099023 | Conformable, electrically relaxable rubbers using carbon nanotubes for BCR/BTR applications Exemplary embodiments provide bias-able devices for use in electrostato-graphic printing apparatuses using conformable and electrically relaxable rubber materials. The rubber material can include a plurality of nanotubes distributed uniformly and/or spatially-contro... | 01/17/2012 |
| 8090298 | Electrostatic charging member, electrostatic charging device, process cartridge and image forming apparatus An electrostatic charging member includes a base material; and an outermost layer that contains a porous filler and a resin and has a gel fraction of at least about 50% and a surface roughness Rz in a range of about 2 μm to about 20 μm. ... | 01/03/2012 |
| 8086142 | Bias charge roller comprising overcoat layer Disclosed are bias charge rollers having an overcoat layer. The overcoat layer comprises a phenolic resin and a conductive agent. The resulting bias charge rollers have reduced streaking and increased service lifetimes. ... | 12/27/2011 |
| 8064804 | Conductive member, process cartridge using the conductive member, and image forming device using the process cartridge A conductive member includes, a conductive supporting body, an electric resistance-adjusting layer formed in the conductive supporting body, and a space holding member which is formed on each end of the electric resistance-adjusting layer and has a material differen... | 11/22/2011 |
| 8064803 | Charging member, process cartridge, and electrophotographic apparatus A charging member having a support, a conductive elastic layer formed on the support and a surface layer formed on the conductive elastic layer, wherein the surface layer contains a polysiloxane having an acrylic group and an oxyalkylene group. This provides a charg... | 11/22/2011 |
| 8000633 | Charging member, charging device, image forming apparatus, and process cartridge The present invention provides a charging member, a charging device, an image forming apparatus, and a process cartridge that minimize local unevenness in potential of a charged object resulting from soiling of the charging member with soiling microparticles or soil... | 08/16/2011 |
| 7991327 | Image forming apparatus and process cartridge In an image forming apparatus, a photoconductor and a charge roller are in contact with each other and configured to rotate together at linear velocity v (millimeters/second). In this structure, a DC voltage is applied to the photoconductor and the charge roller whi... | 08/02/2011 |
| 7962068 | Charging member, process cartridge and electrophotographic apparatus An object of the present invention is to provide a charging member in which a toner, an additive for use in the toner, or the like is hard to adhere to the surface even under repeated use for a long time, and hence the charging and image output are made stable for a... | 06/14/2011 |
| 7917064 | Charge roll, process cartridge, image forming apparatus, charging method, and cleaning method of charge roll A charge roll includes a roll member that contacts an image carrier and rotates, the roll member including a conductive material that charges the surface of the image carrier, and the roll member having particles on the outer circumferential surface of the roll memb... | 03/29/2011 |
| 7869743 | Image forming apparatus, process cartridge used therein, and production method of charging roller An image forming apparatus in which a charging roller charges an image carrier to which a lubricant is applied prevents slip of the charging roller. The charging roller is composed of a metal core and a rubber layer mainly made of an epichlorohydrin rubber formed ar... | 01/11/2011 |
| 7835669 | Charging roller, process cartridge and electrophotographic apparatus The present invention provides a charging roller having a stable chargeability and capable of preventing occurrence of “fogging” on an electrophotographic image. The invention relates to a contact-charging type charging roller which includes a conductive support... | 11/16/2010 |
| 7835668 | Imaging methods, imaging member charging methods, and image engines Imaging methods, imaging member charging methods, and image engines are described. According to one embodiment, an imaging method includes providing an imaging member having an outer surface comprising a plurality of portions having a plurality of different radii, r... | 11/16/2010 |
| 7693456 | Conductive member and process cartridge having it and image forming apparatus having the process cartridge A conductive member including a conductive supporting body (1), an electric resistance adjusting layer (2) formed on the conductive supporting body (1), and space holding members (3, 3) provided on opposite ends of the electric resistance... | 04/06/2010 |
| 7693459 | Charging device for charging a surface of a latent image bearing member and an image forming apparatus including the charging device A charging device and an image forming apparatus using the charging device. The charging device includes a charging member to uniformly charge a surface of a latent image bearing member in contact therewith, a charge bias application unit to apply a charge bias to t... | 04/06/2010 |
| 7693457 | Charging member, process cartridge, and electrophotographic apparatus A charging member has a surface layer. The surface layer contains a polysiloxane having a first unit, a second unit and a third unit each of which is represented by a specific formula. The ratio of the sum of the mole numbers of the first and second units to the sum... | 04/06/2010 |
| 7693458 | Charging device, process cartridge, and image forming apparatus Toner having spindle-shaped particles is used to form images in an image forming apparatus. Each spindle-shaped particle has a ratio of a length in a minor axis to a length in a major axis in a range from 0.5 to 0.8 and a ratio of a thickness to the length in the mi... | 04/06/2010 |
| 7680439 | Interference fit sleeved foam charge rolls and composite materials The present invention is generally directed to composite materials or charge rolls comprising a sleeved foam charge roll where the sleeve is interference-fit over the foam core, and methods of constructing them. The foam core can be made with an outer diameter large... | 03/16/2010 |
| 7668484 | Charging roller and image forming apparatus incorporating same The invention delivers a charging roller which is capable of preventing current leakage to a photoreceptor throughout life-time and which has a stable resistance value throughout life-time. The charging roller contains a metal core and a rubber layer formed on the c... | 02/23/2010 |
| 7664434 | Charging member, process cartridge and electrophotographic apparatus A charging member is provided in which a toner, an additive for use in the toner, or the like is hard to adhere to the surface even under repeated use for a long time, and hence the charging and image output are made stable for a long time even if the charging membe... | 02/16/2010 |
| 7623812 | Image forming apparatus, charging roller, production method of charging roller, production apparatus of charging roller A contact angle of water on the surface of a charging roller is equal to or smaller than a contact angle of water on the surface of the photo conductor. This structure prevents slip of the charging roller in an image forming apparatus wherein the charging rol... | 11/24/2009 |
| 7609999 | Apparatus for charging an image transfer surface An apparatus for charging an image transfer surface in an image transfer device includes a support member and a conductive polymer material surrounding an outer periphery of the support member. An inner portion of the conductive polymer material is loaded with a sup... | 10/27/2009 |
| 7583915 | Image forming apparatus and method for producing charging roll An image forming apparatus includes a rotatable image carrying member, on a surface of which an electrostatic latent image is formed, and a charging roll that is in contact with the image carrying member to charge the surface of the image carrying member to a prescr... | 09/01/2009 |
| 7580655 | Charging roller, electrophotographic process cartridge, and image forming apparatus A charging roller including: a support; an elastic layer provided on the outer peripheral surface of the support, and having a ground-finished outer peripheral surface; and a surface layer formed to cover the outer peripheral surface of the elastic layer and that ha... | 08/25/2009 |
| 7551879 | Charging device, process unit, image forming apparatus, and method for producing rotating member An image forming apparatus has a latent image supporting body configured by a substrate and a covering layer provided on the substrate; and a charging device which is a rotating body configured by an axis member and a charging member provided on the axis member, and... | 06/23/2009 |
| 7539443 | Charging roller and image forming apparatus A charging roller is provided. The charging roller is configured to face an image carrier at a predetermined charging gap and charge the image carrier in a non-contact state. A conductive shaft is provided with a pair of annular concave portions formed on an outer c... | 05/26/2009 |
| 7515852 | Conductive member, charging member using the conductive member, process cartridge using the charging member and image forming apparatus using process cartridge An conductive member includes a long conductive supporting body to which a predetermined potential is applied, extending from one side to the other side, an electric resistance adjusting layer, which is formed to surround a circumference surface of the conductive su... | 04/07/2009 |
| 7496318 | Charging device and image forming apparatus The invention provides a charging device including a charging roll and a voltage application unit which is capable of applying to the charging roll a voltage in which an alternating current voltage is superimposed on a direct current voltage, the alternating current... | 02/24/2009 |
| 7493064 | Electric conductive member, process cartridge and image forming apparatus An electrical conductive member is configured to prevent a shape distortion in gap retaining members caused by that the gap retaining members are fitted to an end surface of an electric resistance adjusting layer, and to be able to maintain a gap between the electri... | 02/17/2009 |
| 7493063 | Image-forming device comprising a contact charging unit An image-forming device including a plurality of supporting rollers, a photosensitive belt, a pressing roller, an intermediate roller, and a charging roller. The plurality of supporting rollers includes a preselected supporting roller. The photosensitive belt is cir... | 02/17/2009 |
| 7483652 | Image forming apparatus and charging method having gap holding members An image forming apparatus has: a photosensitive drum as an image holding body to form an electrostatic image; a charging roller which is arranged so as to face the drum and charges it; pressing springs which apply a pressing force to the charging roller toward the ... | 01/27/2009 |
| 7460815 | Charge roller for noncontact charging across a charge gap, method for producing the same, and image-forming apparatus including the same A charge roller includes a core, a resistive layer disposed on a circumferential surface of the core to charge an image-bearing member without contact, and gap members formed of tape-shaped films. These films are fixed to both ends of the charge roller by winding ea... | 12/02/2008 |
| 7424232 | Charging apparatus A charging apparatus includes a charger for being supplied with an AC voltage and for electrically charging a member to be charged; a current measurer for measuring a current flowing between the charger and the member to be charged when the AC voltage is supplied to... | 09/09/2008 |
| 7406277 | Semiconductive rubber member A conductive rubber roller 10 has a conductive rubber layer 1, containing chloroprene rubber, and composes an outermost layer thereof. When an alternating current is applied to the conductive rubber roller 10 at a voltage of five and a frequency... | 07/29/2008 |
| 7403735 | Image formation apparatus using an electrophotographic process An image formation apparatus using an elecrophotographic process for obtaining a high quality image with tone value R2 of equal to or more than 0.98 is provided. The resolution for light-writing is equal to or more than 1200 dpi and/or light-writing is pe... | 07/22/2008 |
| 7394570 | Method and apparatus for eliminating seams in screened image data for repetitive printing A method of modifying screened image data so that there is no visible seam when the image is printed repeatedly in a circumferential direction, for example using a drum output device. One version applicable to images screened using a supercell includes cutting the i... | 07/01/2008 |
| 7389070 | Image forming apparatus having charge member and pressing member An image forming apparatus includes: an image supporting member; a charge roller for charging the image supporting member; a gap setting member disposed on the charge roller for setting a gap between the image supporting member and the charge roller; and a pressing ... | 06/17/2008 |
| 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 |
| 7373100 | Color image forming apparatus having pre-transfer discharge electrode A color image forming apparatus may have an image forming unit composed of a plurality of groups which have image carriers and image forming devices. ... | 05/13/2008 |
| 7366448 | Charging member including coated and uncoated metal oxide particles A charging member is disclosed having a support and at least one cover layer provided on the support., The cover layer has an outermost layer of the cover layer placed at the outermost surface of the charging member; the outermost layer contains i) composite particl... | 04/29/2008 |
