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Patent Searching and Data


Matches 701 - 750 out of 41,409

Document Document Title
WO/1993/024863A1
A photoconductive recording material containing a support and a charge generating layer (CGL) in contiguous relationship with a charge transporting layer (CTL), containing a p-charge transporting material (p-CTM), wherein the binder of s...  
WO/1993/024864A1
An electrophotographic photoreceptor which gives clear high-quality images, is excellent in image reproductivity and resistances to moisture and rubbing off, and particularly effective for the scanning exposure system using semiconductor...  
WO/1993/024861A1
A photoconductive recording material containing a support and a charge generating layer (CGL) in contiguous relationship with a charge transporting layer (CTL) containing a n-charge transporting material (n-CTM), wherein the binder of sa...  
WO/1993/022361A1
An ester polymer composed of solely the following repeating units (I): -(-W-X-O-CO-)- or both of the repeating units (I) and (II) and having a reduced viscosity [$g(h)¿sp?/C] of 0.2-10.0 dl/g as measured with a solution thereof in methy...  
WO/1993/021565A1
Photoconductive compositions useful in the fabrication of digital, laser-imaged offset printing plates. The compositions comprise a mixture of (a) an infrared-sensitive organic photoconductor sensitive to light in the wavelength range of...  
WO/1993/021628A1
An erasable optical disk (100K), for use with an erasable optical disk drive system, having a readout stimulation laser and a recording laser, is disclosed. The disk utilizes electron trapping optical memory material as the storage mediu...  
WO/1993/018081A1
A polycarbonate polymer wherein the repeating unit is a group represented by general formula (I) and the terminal group is a group represented by formulae (I), (II), (III), (IV) or (V). In formula (I) R?1¿ and R?2¿ represent each halog...  
WO/1993/016418A1
A method of producing an electrophotographic form plate which has high process image quality and high printing image quality, keeps stable performance for a long period of continuous operation, and is suitable for scanning exposure by a ...  
WO/1993/014447A1
An original plate for electrophotographic lithography, in which a photoconductive layer contains a resin having cross-linked structure that includes a functional group producing at least one of -COOH group, and -SO3H group, -SO2H group a...  
WO/1993/013462A1
A method of forming electrophotographic transfer images, capable of perfectly transferring a color toner image to an object material without causing the colors of the image to stagger and the quality of the transferred image to lower, wh...  
WO/1993/009474A1
The invention relates to a photoelectrographic element having a conductive layer in electrical contact with an acid photogenerating layer which is free of photopolymerizable materials and contains an electrically insulating binder and a ...  
WO/1993/008509A1
The disclosed invention relates to novel charge-transfer complexes comprising fullerenes and electron donating components, and to photoconductive compositions containing fullerenes. Theses compositions are useful in electrostatic imaging.  
WO/1993/007540A1
An electrophotographic photoreceptor having a photoconductive layer formed on a conductive substrate and coated with a protective layer prepared from a composition comprising a reactive (di)pentaerythritol compound, a reactive phosphazen...  
WO/1993/003425A1
A photoelectrographic element for electrostatic imaging, containing a conductive layer and a photosensitive layer, is produced using photosensitive layer materials which form a barrier to charge injection where exposed to ultraviolet rad...  
WO/1993/003426A1
A photoelectrographic element for electrostatic imaging, containing a conductive layer and a photosensitive layer, is produced using photosensitive layer materials which form a barrier to charge injection where exposed to near-infrared r...  
WO/1993/002403A1
A method of forming fixed images comprises charging a photoconductor (1); exposing the photoconductor (1) to light; developing an electrostatic latent image, whereby a toner (10) is applied to the electrostatic latent image formed on a t...  
WO/1993/000615A1
The constitution and composition of a back layer of the original plate is improved, and thereby printing on a large number of sheets can be executed without scumming and ruck by using the original plate. The original plate has at least a...  
WO/1992/022856A1
The present invention relates to a photoelectrographic element having a conductive layer in electrical contact with a charge generation layer which is free of photopolymerizable materials and contains an acid photogenerator, a pigment wh...  
WO/1992/022925A1
An amorphous material such as silicon is doped with a dopant, such as boron, in small amounts effective to reduce light-induced degradation. The dopant preferably is added in the vapor deposition of the amorphous material and results in ...  
WO/1992/022430A1
A new process for printing or construction of 3-dimensional objects comprises a pattern-controllable application, possibly in several successive layers, of a particulate material onto a receiving unit from a semiconductor die having memo...  
WO/1992/020015A1
An electrophotographic photoreceptor improved in electrostatic characteristics and image pickup and particularly excellent in the reproduction of highly precise images by the use of a liquid developer and in the image pickup according to...  
WO/1992/018905A1
The present invention relates to a photoelectrographic element having a conductive layer in electrical contact with an acid photogenerating layer which is free of photopolymerizable materials and contains an electrically insulating binde...  
WO/1992/018906A1
An electrophotographic lithographic printing plate having a photoconductive layer prepared by the dispersion polymerization of a resin [A] composed of polymer component with specified repeating units and a polar polymer component and hav...  
WO/1992/018907A1
An electrophotographic photoreceptor improved in electrostatic characteristics and image pickup and particularly excellent in the reproduction of highly precise images by the use of a liquid developer and in the image pickup according to...  
WO/1992/017825A1
Imaging apparatus for printing an image on a substrate (42) from a latent image formed on a latent image bearing surface (16) including developing apparatus (22) for developing the latent image/with toner to form a developed toner image ...  
WO/1992/017822A1
An electrographic article comprising a polymeric film having at least one polymeric receptor layer coated on at least one side thereof, said receptor layer having an equivalent or lower storage elasticity modulus than a toner resin used ...  
WO/1992/017549A2
Methine dyes have the polyketone grouping (I), in which the variables have the following meaning: A represents (a) or (b); R?1� represents a 5 or 6-membered cycloaliphatic residue with one or two heteroatoms from the group -NR?4�-, -...  
WO/1992/017549A1
Methine dyes have the polyketone grouping (I), in which the variables have the following meaning: A represents (a) or (b); R?1� represents a 5 or 6-membered cycloaliphatic residue with one or two heteroatoms from the group -NR?4�-, -...  
WO/1992/015048A1
A negative plate for electrophotographic lithographic printing provided with a photoconductive layer containing: polymer ingredient in specific repeated units; resin [A] composed of polymer ingredient containing polar group and having 1 ...  
WO/1992/011582A1
The present invention relates to a photoelectrographic element having a conductive layer in electrical contact with an acid photogenerating layer which is free of photopolymerizable materials and contains an electrically insulating binde...  
WO/1992/011581A1
The present invention relates to a photoelectrographic element having a conductive layer in electrical contact with an acid photogenerating layer which is free of photopolymerizable materials and contains an electrically insulating binde...  
WO/1992/010793A1
Imaging apparatus for printing an image on a substrate (42) from a latent image formed on a latent image bearing surface (16) including: developing apparatus (22) for developing the latent image with a liquid developer to form a develope...  
WO/1992/008168A1
Provided is a conductive coating compostition which comprises a colloidal dispersion of cuprous iodide particles in a binder resin solution which contains an ohmic bridging electrolyte. The preferred ohmic bridging electrolyte is potassi...  
WO/1992/007897A1
Provided is a process for preparing a stable dispersion. The dispersion is comprised of a pigment, such as cuprous iodide, dispersed in a binder resin solution. The process is comprised of first dispersing the pigment into a binder resin...  
WO/1991/019768A1
A bisazo compound represented by general formula (I) and an electrophotographic photoreceptor having a photoreceiving layer containing said bisazo compound, wherein two of R�1? to R�4? groups represent each an azo group having a coup...  
WO/1991/018287A1
Method and apparatus for inspecting a surface capable of holding electrical charge wherein at least one sensing electrode (14) having an edge (18) is located in close physical proximity to the surface and is disposed so that upon relativ...  
WO/1991/017485A1
An organic photoconductor including a base layer formed of a first material and a photoconductive layer formed of a second material. The organic photoconductor being characterized in that when it is maintained in a curved orientation wit...  
WO/1991/016669A1
A photoelectrographic element comprising a conductive layer in electrical contact with an acid photogenerating layer which is (a) free of photopolymerizable materials and (b) comprises an electrically insulating binder and an acid photog...  
WO/1991/014206A1
An electrostatic information recording medium (3) composed of an electrostatic information recording medium electrode (13) and a charge holding layer (11) put thereon, wherein the layer (11) is formed from a fluororesin composed of repea...  
WO/1991/013385A1
A method is provided for non-electrostatically transferring dry toner particles which comprise a toner binder and have a particle size of less than 8 micrometers from the surface of an element which has a surface layer comprising a film-...  
WO/1991/010992A1
An article and method for its preparation is disclosed wherein the article comprises a substrate having at least one planar surface on which is disposed a thermally decomposable metallo-organic compound in active association with a photo...  
WO/1991/008521A1
A data recording medium (10) is manufactured by laminating an electrode (13) and a recording layer (11) of a pinene polymer having a molecular weight of 500 $m(k) 10,000 on a support (15). By thermal development, a thermally stable frost...  
WO/1991/008655A1
A heat-treatment device equipped with a cylindrical directly powered far-infrared ceramic heater for heating a columnar or cylindrical object to be treated, which is placed concentrically therewith, from the surrounding. This device can ...  
WO/1991/008522A1
A master charge retaining medium (2) carrying electrostatic information and a charge retaining medium (3) for copying are arranged in such a manner as to face each other (as shown in Fig. 2(b)). A voltage is applied between the electrode...  
WO/1991/007697A1
Provided is a conductive coating material that provides a uniform conductive coating on a support comprising a colloidal dispersion of cuprous iodide and a binder resin. The colloidal dispersion is coated on the support and dried to prep...  
WO/1991/007702A1
A photoconductive photosensitive member (2) and a charge retaining medium (1), which face one another at a predetermined interval, are exposed to light while a voltage is applied between them from an external power source (E). The discha...  
WO/1991/007701A1
An electrostatic information recording medium of the invention comprises: an electrode layer (13) and a charge-holding layer, wherein the charge-holding layer is made up of a laminate of a resin layer (11a) having a low glass transition ...  
WO/1991/005290A1
A persistent photoconductive coating composition containing a persistent photoconductor and a diazo sensitizer disbursed in an inert coherent matrix. In a preferred embodiment, a photoinitiator and an acetate or phenolic hydroxyl contain...  
WO/1991/004518A1
A photoconductive layer (5) of a photosensitive member (1) and a charge retaining layer (6) of a charge retain medium (2) are so disposed as to face each other with a predetermined distance (d). After a power source (8) is connected, lig...  
WO/1991/004514A1
In a new process for reversible or irreversible production of an image by the photographic effect of energy on a recordng layer in the presence or absence of an electrical and/or magnetic field, a pattern of surface charges corresponding...  

Matches 701 - 750 out of 41,409