Ricoh Company, Ltd.

Nissin Chemical Industry Co., Ltd.

Hongguo Li

Kazukiyo Nagai

Tetsuro Suzuki

Hiroshi Tamura

Hiroshi Ikuno

Masaomi Sasaki

Tamotsu Horiuchi

Yoshiaki Kawasaki

Chiaki Tanaka

Nozomu Tamoto

Yuuji Tanaka

Yasuo Suzuki

Yoshiki Yanagawa

Masayuki Shoshi

Harukazu Okuda

Yuuko Komai

Tomoyuki Shimada

Shinichi Kawamura

Masafumi Ohta

Naohiro Toda

Tomohiro Hirade

Kawori Tanaka

Kyohji Okada

Masahide Hatanaka

An electrophotographic photoreceptor is disclosed. The electrophotographic photoreceptor includes a resin substrate including a carbon nanotube; and a photosensitive layer located overlying the substrate. In addition, a method for producing an electrophotographic photoreceptor is disclosed. The method includes forming a resin substrate by molding a resin forming material including a carbon nanotube; and forming a photosensitive layer overlying the resin substrate.

Electrophotographic photoreceptor, and method for producing electrophotographic photoreceptor

An electrophotographic photoreceptor including an electroconductive substrate, a charge generation layer located overlying the electroconductive substrate, a hole transport layer located on the charge generation layer, and a hole transport protective layer located on the hole transport layer. The hole transport protective layer includes a three-dimensionally crosslinked material obtained by irradiating a composition including at least a radically polymerizable hole transport compound with ultraviolet rays or electron beams so that the radically polymerizable hole transport compound causes chain polymerization. In addition, the protective layer includes a specific cyano-containing styryl aromatic compound or a specific cyano-containing distyryl aromatic compound.

Electrophotographic photoreceptor, and image forming method, image forming apparatus and process cartridge using same

A furan derivative represented by the following General Formula (1): 

Furan derivative and electrophotographic photoconductor

To provide: a latent electrostatic image bearing member including one of a cured material obtained through radical polymerization of a radically polymerizable compound of component (A1), and a cured material obtained through radical polymerization of a radically polymerizable compound of component (A2) in the outermost layer, wherein the component (A1) includes two radically polymerizable groups and a substituted amino group which does not include a radically polymerizable group in a molecule, and the radically polymerizable group and the nearest substituted amino group which does not include an unsaturated bond in between are connected with two or more aromatic hydrocarbon compounds, and, the radically polymerizable compound of component (A2) includes a condensed polycyclic aromatic hydrocarbon formed by bonding a radically polymerizable group and a non-radically polymerizable substituted amine group through a condensed polycyclic aromatic hydrocarbon group; and an image forming apparatus, image forming method and process cartridge which uses thereof.

Acrylic ester compound and manufacturing intermediate thereof, method for manufacturing acrylic ester compound, and latent electrostatic image bearing member, image forming method, image forming apparatus and process cartridge

An image bearing member including an electroconductive substrate, a photosensitive layer provided overlying the electroconductive substrate, and a furan derivative represented by the following chemical structure 1, where Arand Arindependently represent substituted or non-substituted aryl groups and Rrepresents an alkylene group having one to six carbon atoms.

Image bearing member

An electrophotographic photoconductor including: an outermost layer, wherein the outermost layer comprises an amino group-containing acryl-modified polyorganosiloxane, wherein the amino group-containing acryl-modified polyorganosiloxane is a copolymer in which a polyorganosiloxane represented by the following structural formula (1) and an acrylic monomer are graft-polymerized 

Electrophotographic photoconductor, and image forming apparatus and process cartridge using the same

A photoreceptor including an electroconductive substrate and a photosensitive layer located overlying the electroconductive substrate, the photosensitive layer including a cross-linking surface layer including a cross-linked copolymer of a radical polymerizable monomer (I) having at least three functional groups without a charge transport structure and a radical polymerizable monomer (II) having a charge transport structure, and a polysiloxane-acryl block copolymer having a charge transport property.

Photoreceptor, image formation method, image forming apparatus and process cartridge

An electrophotographic photoreceptor is provided, including an electroconductive substrate and a photosensitive layer located overlying the electroconductive substrate, wherein an outermost layer of the electrophotographic photoreceptor includes a resin including a graft copolymer in which a monomer having a polar group is graft polymerized to a polycarbonate resin, a polyarylate resin, or a copolymer thereof, and a filler; along with an image forming apparatus and a process cartridge using the electrophotographic photoreceptor.

Electrophotographic photoreceptor, and image forming apparatus and process cartridge using the electrophotographic photoreceptor

An electrophotographic photoconductor having a layer of a crosslinked resin obtained by reacting an epoxy group-containing amine compound having a charge transferability-imparting group with at least one silicon compound selected from an epoxy ring-free alkoxysilane compound, an epoxy ring-free silanol compound, an epoxy ring-containing alkoxysilane compound and an epoxy ring-containing silanol compound.

Electrophotographic photoconductor and method of preparing same

An organic-inorganic hybrid material, including a charge transportable organic polymer and a metal oxide.

Organic-inorganic hybrid material and method of preparing the organic-inorganic hybrid material, and electrophotographic photoreceptor, process cartridge, image forming apparatus and image forming method using the organic-inorganic hybrid material

A photoconductor comprising a photosensitive layer disposed on a support, wherein the photosensitive layer has a crosslinked layer and the crosslinked layer is produced by curing a dispersion in which at least one of an acryl-modified polyoraganosiloxane having a radical reactivity and an acryl-modified polyoraganosiloxane having an amine structure is dispersed in a radical polymerizable monomer.

Photoconductor, producing method thereof, image forming process and image forming apparatus using photoconductor, and process cartridge

An electrophotographic photoreceptor including an electroconductive substrate and a photosensitive layer located overlying the electroconductive substrate, wherein the photosensitive layer comprises units obtained from a radical polymerizing monomer, in which an aliphatic group having two radical polymerizing groups and a charge transporting group including no radical polymerizing group are connected to each other in a single bond, at the surface thereof.

Electrophotographic photoreceptor, and image forming method, image forming apparatus and process cartridge therefor using the electrophotographic photoreceptor

An electrophotographic photoreceptor including an electroconductive substrate and a photosensitive layer overlying the electroconductive substrate. An outermost layer of the electrophotographic photoreceptor is a crosslinked layer including a radical polymerizing monomer having three or more functional groups without a charge transporting structure. The outermost layer also includes a radical polymerizing compound having one functional group with a charge transporting structure and a reactive silicone compound having a radical polymerizing functional group.

Electrophotographic photoreceptor, and image forming method, apparatus and process cartridge therefor using the photoreceptor

An electrophotographic photoreceptor, including a crosslinked material including:

Electrophotographic photoreceptor, and image forming method, image forming apparatus and process cartridge using the electrophotographic photoreceptor

An electrophotographic photoconductor having at least a photoconductive layer on an electrically conductive support, in which a surface layer of the photoconductive layer can be obtained by curing at least a free-radical-polymerizable monomer having no charge transporting structure, represented by general formula (A) and a one-functional free-radical-polymerizable compound having a charge transporting structure, wherein R, R, R, R, R, and Rare described in the specification.

Electrophotographic photoconductor, and image formation method, image formation apparatus, and process cartridge for image formation apparatus using the same

Growing community of inventors

Shizuoka, Japan

Hongguo Li