Class / Patent application number | Description | Number of patent applications / Date published |
430580250 | Cyclic ketone, cyclodicyanomethylene, or cyclomethylenemalonate in charge transport layer | 6 |
20090011348 | ELECTROPHOTOGRAPHIC PHOTORECEPTOR AND IMAGE FORMATION METHOD - Disclosed is an electrophotographic photoreceptor comprising on or over an electrically conductive support a photosensitive layer containing a pyranthrone compound represented by the following formula and the pyranthrone compound has a crystal structure exhibiting a CuKα X-ray diffraction spectrum having peaks at angles (2θ±0.2°) of 12.3°, 20.5°, 25.3° and 28.3°. | 01-08-2009 |
20090162767 | BENZOPHENONE CONTAINING PHOTOCONDUCTORS - A photoconductor containing a supporting substrate, a photogenerating layer, and at least one charge transport layer comprised of at least one charge transport component, and where the charge transport layer contains a benzophenone. | 06-25-2009 |
20090202929 | ELECTROPHOGRAPHIC PHOTORECEPTOR INCLUDING DIPHENOQUINONE-BASED COMPOUNDS INCLUDING OXADIAZOLENE GROUP, AND ELECTROPHOTOGRAPHIC IMAGING APPARATUS USING THE SAME - An electrophotographic photoreceptor and an electrophotographic imaging apparatus using the same, the electrophotographic photoreceptor including a diphenoquinone including an oxadiazolene group represented by Formula 1 below as an electron transporting material in a single-layered type photosensitive layer or in a charge generating layer of a laminated type photosensitive layer: | 08-13-2009 |
20100047703 | POLYCARBONATE RESIN AND ELECTROPHOTOGRAPHIC PHOTOSENSITIVE BODY USING THE SAME - The present invention is directed to a polycarbonate resin comprising a structural unit represented by the following general formula (I), wherein the structural unit of general formula (I) occupies 5 to 100 mol % relative to all the structural units, and the limiting viscosity of the polycarbonate resin is 0.3 to 2.0 dl/g: | 02-25-2010 |
20110129769 | CORONA AND WEAR RESISTANT IMAGING MEMBER - The presently disclosed embodiments relate in general to electrophotographic imaging members, such as layered photoreceptor structures, and processes for making and using the same. More particularly, the embodiments pertain to the incorporation of an ozone quenching compound into the charge transport layer to quench the corona effluents and protect the polycarbonate binder of the charge transport layer from being attacked by ozone species, thereby enhancing wear resistance and fatigue cracking. | 06-02-2011 |
20150118608 | MULTI-LAYER ELECTROPHOTOGRAPHIC PHOTOSENSITIVE MEMBER - A multi-layer electrophotographic photosensitive member contains a charge generating material including oxo-titanium phthalocyanine that among diffraction peaks for Bragg angles 2θ±0.2° with respect to characteristic X-rays of CuKα having a wavelength of 1.542 Å, at least exhibits a highest diffraction peak at 27.2°. The multi-layer electrophotographic photosensitive member also contains a hole transport material including a triarylamine derivative shown in Generic Formula (1). A ratio of the hole transport material relative to a binder resin in a charge transport layer is no greater than 0.55. In Generic Formula (1), Ar | 04-30-2015 |