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| Number | Title | Issue Date |
| 6641967 | Carrier for electrophotography, two component type developer, and image forming method A carrier for electrophotography and a two component type developer using the carrier. The carrier is composed of magnetic particles of a magnetic ferrite component represented by Formula: (Fe2 O3)X (MnO)Y (A) | 11/04/2003 |
| 6514649 | Organic EL panel and method for forming the same In a method of manufacturing and organic EL panel wherein an organic light emitting material is laminated between a pair of opposing electrodes, at least one of which is transparent or semitransparent, a photosensitive body having a charge generating laye... | 02/04/2003 |
| 6444379 | Method and apparatus for manufacturing printed wiring board There are provided a method for preparing a printed wiring board which can form electrostatic latent images at the desired positions of a substrate with good precision, and a uniform and good image can be formed for preparing a printed wiring board having... | 09/03/2002 |
| 6300021 | Bias shield and method of developing a latent charge image The invention includes an apparatus 40 for developing a latent charge image formed on a photoreceptor 36 disposed on an interior surface of a faceplate panel 12. The apparatus 40 comprises a developer tank 42 having a sidewall 44 closed at one end by a bo... | 10/09/2001 |
| 5707870 | Process for neutralizing acids in a solution of solvent and polymer A process for measuring and controlling at an aim point the neutralization of an organic acid in an organic polymer solution using a near-infrared analyzer.... | 01/13/1998 |
| 5665499 | Method for development of electrophotographic printing plate precursor An electrophotographic printing plate precursor having satisfactory mechanical strength and water-resistance and suitable to the direct electrical supply system, and a method for development thereof are disclosed. The electrophotographic printing plate pr... | 09/09/1997 |
| 5554479 | Image formation method An image forming method for conveying a magnetic developer 70 held on the surface of a developer conveying member 40 opposed to a image-bearing member 30 to a developing region to develops electrostatic latent images, comprises implementing as the develop... | 09/10/1996 |
| 5378564 | Electrophotographic lithographic printing plate precursor An electrophotographic lithographic printing plate precursor capable of well maintaining both the electrophotographic properties and the printing properties is provided, which comprises, at least, a photoconductive layer on one side of a support and an un... | 01/03/1995 |
| 5368985 | Bisacylphosphine sulfides Bisacylphosphine sulfides of formula I ##STR1## wherein R1 is unsubstituted C1 -C18 or C1 -C8 alkyl which is substituted by phenyl, --CN, C1 -C12 alkoxy or halogen, C2 | 11/29/1994 |
| 5120630 | Method of using a liquid toner developing module for electrographic recording A developing module for depositing liquid toner on an imaging surface of a photoconductive member includes a development electrode. The development electrode is supported by a shroud which includes a toner supply passageway. The supply passageway is coupl... | 06/09/1992 |
| 5111235 | Method of operating electrophotographic printing apparatus A method of operating an electrographic printing apparatus which employs a reversal development system with a two components developer wherein the bias voltage and the surface voltage are varied in synchronism with each other.... | 05/05/1992 |
| 5093217 | Apparatus and method for manufacturing a screen assembly for a CRT utilizing a grid-developing electrode An apparatus for electrophotographically manufacturing a luminescent screen assembly on a substrate for use within a CRT includes a developer for developing a photoconductive layer, having a latent image thereon, with a dry-powdered, triboelectrially-char... | 03/03/1992 |
| 5081499 | Liquid developing method and apparatus for electrophotography, and electrodes therefor A liquid electrophotographic development method where electrodes are arranged only on the side of the photosensitive layer of a master, developing liquid is supplied between the master and the electrodes, and conductors are made to come into contact with ... | 01/14/1992 |
| 5077158 | Electrophotographic image-forming process using grey toner In forming an image by developing an electrostatic latent image with a grey toner, a mixture of a white toner and a black toner is used as the grey toner and the ratio (D) of the black toner to the entire toner, the developing voltage (DV) and the image d... | 12/31/1991 |
| 5061583 | Color electrophotography for high quality half-tone images There is disclosed here a class of liquid toner dispersions for developing electrophotographic images which give very high contrast half-tone dots with low contrast scanning light beams such as gaussian laser beams. The advantage of these toners is enhanc... | 10/29/1991 |
| 5057389 | Electrophotographic lithographic printing plate precursor with over back layer An electrophotographic lithographic printing plate precursor which is suitable for not only the ordinary developing methods but also the developing methods of direct electron injection system and which after developing, can readily be wound and fixed, as ... | 10/15/1991 |
| 5027744 | Developing device with development electrode cleaning unit A developing device which utilizes a development solution having toner particles actuated in the electric field generated by an electromember is provided with a cleaning unit to remove excess toner particles from the surface of the electrode member. The u... | 07/02/1991 |
| 5019472 | Method for duplicating press characteristic dot gain in electrostatic proofing systems A method for electrostatically producing prepress printing proofs that accurately predict results of actual press runs for a given press having known or desired characteristic response.... | 05/28/1991 |
| 4986211 | Toning method and member for electrostatography A toning method and member for electrostatography wherein a recording member containing information on its image bearing surface in the form of electrostatic latent images of one polarity is toned by attracting to such latent images toner material of oppo... | 01/22/1991 |
| 4875080 | Method of and apparatus for developing electrophotographic film using liquid developer A developing apparatus wherein a developer is supplied to an exposed electrophotographic film to develop an image formed on the film has a developing section provided with an electrode which is disposed in opposing relation to the film. A bias voltage of ... | 10/17/1989 |
| 4868075 | Electrophotographic imaging process An electrophotographic imaging process. The process utilizes a disposable photoconductor and develops the photoconductor in fresh toner. The toner is packaged in a pod to protect its freshness and dispense a predetermined quantity of toner. The toner cont... | 09/19/1989 |
| 4768061 | Device for the development of a latent electrostatic image, apparatus for producing prints by electrophotographic means and method for developing a latent electrostatic image A device is described for developing a latent electrostatic image which is present on a surface, for example a photoconductor surface. The device has one or more regions of a first type having relatively large dimensions and one or more regions of a secon... | 08/30/1988 |
| 4766468 | Developing method and apparatus for a photocopier A method of development includes providing a mixture of non-magnetic developer particles and magnetic particles in a developer supply container, carrying the mixture on an insulating surface of an endlessly movable developer carrying member and confining ... | 08/23/1988 |
| 4707428 | Electrostatic latent image developing method A developing method comprising disposing an electrostatic latent image holding body and a development electrode carrying a toner layer opposite to each other with a gap therebetween and transferring the toner from the development electrode to the electros... | 11/17/1987 |
| 4614697 | Developing method for developing electrostatic latent image A developing method for developing electrostatic latent images with a toner and carrier particles in which particles as a third component are preliminarily mixed with the toner to be replenished, and rising in charge of the toner to be replenished into th... | 09/30/1986 |
| 4529295 | Electrophotographic copying apparatus including a self-cleaning developing assembly and method An assembly for developing a latent electrostatic image formed on the photosensitive outer surface of a rotating developing drum making up a part of an electrophotographic copying apparatus is disclosed herein. This assembly includes a supply of developer... | 07/16/1985 |
| 4527884 | Device for inking an electrostatic charge image with toner particles A device for inking an electrostatic charge image with toner particles in a xerographic unit is disposed adjacent to an information carrier on which the electrostatic charge image is carried so as to form a developing gap above the charge image. The devic... | 07/09/1985 |
| 4526850 | Diode bias electrophotographic toning system and method The present invention is a diode bias toning system and method for use in and with electrophotographic copying machines and the like, and provides a significant improvement over "floating" and "hard-wired" toning systems to provide a user with the benefit... | 07/02/1985 |
| 4518668 | Method for preparing a lithographic printing plate A method for preparing a lithographic printing plate is disclosed. The method involves providing a light-sensitive material comprised of an electroconductive support having a hydrophilic surface. The surface has provided thereon a light-sensitive layer an... | 05/21/1985 |
| 4473627 | Developing method for developer transfer under electrical bias and apparatus therefor This specification discloses a method of toner transfer development in which a low frequency alternating electrical bias is applied to the space between a latent image bearing member and a developer carrying member to develop the latent image on the laten... | 09/25/1984 |
| 4423134 | Developing unit for electrophotography A developing unit for use with an electrophotographic copying apparatus of the type comprising a developing electrode and at least one corona discharger includes a conductive member arranged within a shield casing of the discharger for obtaining a voltage... | 12/27/1983 |
| 4384035 | Perforate development electrode Apparatus for developing electrostatic images on electrophotographic material by means of a perforate development electrode and liquid toner, without immersing the material in a bath of toner.... | 05/17/1983 |
| 4383019 | Process for electrophotographic color image development on a continuously moving image carrier The invention relates to a process for electrophotographic color image development by which charge images are rendered visible by electrophoretic deposition of color zones on a continuously moving image carrier-band in development stations, using contact ... | 05/10/1983 |
| 4363860 | Photoconductive polyimide coating upon a substrate A photoconductive layer is produced upon a substrate by coating the substrate with a solution in an organic solvent of a polyamic acid and of 2,4,7-trinitro-9-fluorenone (TNF) and/or 2,4,5,7-tetranitro-9-fluorenone and heating the coated substrate at a te... | 12/14/1982 |
| 4342823 | Perforate development electrode A method for developing electrostatic images on a sheet of electro-photographic material by means of a perforate development electrode and liquid toner, without immersing the material in a bath of toner. The method comprises spraying liquid toner against ... | 08/03/1982 |
| 4334002 | Image development method An electric field is established in the gap between an imaging surface and an opposing electrode surface inducing movement of particles from suspension within a developer in the gap toward the opposing electrode surface. A voltage pattern generated on the... | 06/08/1982 |
| 4332877 | Electrophotographic copying method In an electrophotographic copying apparatus having an exposure optical system capable of performing variable magnification of copies to be made by changing the relative movement speed of an original and an image scanning optical system to 1/m in accordanc... | 06/01/1982 |
| 4329414 | Electrophotographic process An electrophotographic duplicating process suitable for high humidity conditions utilizes a magnetic brush developing device having an electrically conductive development electrode with an electrically insulating coating thereon in conjunction with a deve... | 05/11/1982 |
| 4322488 | Developing latent electrostatic images using a liquid toner and a development electrode A method and apparatus for developing a latent electrostatic image on the surface of an electrophotographic member using a liquid toner and a development electrode. An AC bias voltage is applied between the electrophotographic member and the development e... | 03/30/1982 |
| 4319544 | Digitally synthesized dynamic bias method and apparatus for toning control in developing latent electrophotographic images In an electrophotographic image forming process, a method and apparatus for providing an electric toning bias wherein the instantaneous electric potential value of the bias is changed with time in proportion to the natural decay of the resident electric c... | 03/16/1982 |
