Canon Kabushiki Kaisha

Kenji Ookubo

Masashi Kawamura

Taku Shimoda

Takayuki Toyoda

Yu Yoshida

Takashi Kenmoku

Akane Masumoto

Takashi Matsui

Nobuhiko Sato

Kenji Aoki

Yusuke Hasegawa

Kunihiko Nakamura

Tomoyuki Hiroki

Yuichi Kikuchi

Kenta Kamikura

Tomohisa Sano

Tsutomu Shimano

Yoshitaka Suzumura

Tsuneyoshi Tominaga

Tetsuya Kinumatsu

Kosuke Fukudome

Shohei Kototani

Nozomu Izumi

Mariko Yamashita

Dai Nozaki

Shohei Shibahara

Takuma Ikejiri

Yuichi Yajima

Tohru Hiramatsu

Yuna Yamamoto

A process cartridge includes a charging unit, (I) wherein the charging unit includes a conductive member, wherein the conductive member includes a conductive layer disposed on an outer surface of a support, the conductive layer has a matrix-domain structure including a matrix and a plurality of domains, the matrix contains a first rubber, the domains contain a second rubber, and (II) wherein the toner includes agglomerates containing silica fine particles and binding components on surfaces of the toner particles, and wherein a relationship of Dms<Ag is satisfied, where Dms is an arithmetic mean of distances between adjacent domains at the outer surface of the conductive roller, and Ag is an arithmetic mean of Feret diameters of the agglomerates.

Process cartridge and process cartridge set

A toner comprises a toner particle comprising a resin A and a resin B, wherein the resin A has a structure represented by a predetermined general formula, and the resin B has a monomer unit represented by a predetermined general formula, and a toner manufacturing method comprises a step of dispersing a toner base particle comprising the resin B in an aqueous medium to obtain a toner slurry, and a step of adding a radical polymerization initiator and a monomer composition comprising a monomer represented by a predetermined general formula to the resulting toner slurry to form the resin A on a surface of the toner base particle.

Toner and method for manufacturing toner

A toner comprising a toner particle, wherein the toner particle comprises a binder resin, a resin A, and a resin B, the resin A comprises a substituted or unsubstituted silyl group in a molecule, a substituent of the substituted silyl group is at least one selected from the group consisting of an alkyl group having 1 or more carbon atoms, an alkoxy group having 1 or more carbon atoms, a hydroxy group, a halogen atom, and an aryl group having 6 or more carbon atoms, and the resin B comprises an azo group in a molecule.

Toner

A toner comprising a toner particle comprising a resin A, and an external additive A, wherein the resin A is a resin represented by formula (1) below, the resin A is present at the surface of the toner particle, the external additive A is a fine particle containing silicon, the average value of the shape factor SF-1 of the external additive A is from 105 to 120, the average value of the shape factor SF-2 of the external additive A is from 100 to 130.

A production method for obtaining a compound having an amide bond and also having an alkoxysilyl group by a reaction of a compound including a carboxy group with a compound having an amino group and an alkoxysilyl group, the production method comprising:

Method for producing compound having amide bond and also having alkoxysilyl group

Toner comprising a toner particle, the toner particle includes a toner core particle and an organosilicon polymer covering the toner core particle surface, the organosilicon polymer has a structure represented by R&#x2014;SiO(Reach independently represents an alkyl group having 1 to 6 carbon atoms or a phenyl group), the toner core particle includes a resin A having a substituted or unsubstituted silyl group in a molecule thereof, a substituent of the substituted silyl group is at least one selected from the group consisting of an alkyl group having 1 or more carbon atoms, an alkoxy group having 1 or more carbon atoms, a hydroxy group, a halogen atom, and an aryl group having 6 or more carbon atoms, a content of silicon atoms in the resin A is 0.02 to 10.00% by mass, and a content of silicon atoms in the organosilicon polymer is 30 to 50% by mass.

A toner comprising a toner particle that contains a binder resin, a resin represented by formula (1), and wax, wherein the wax contains an ester compound that exhibits a compatibility at 100&#xb0; C. of at least 5.0 mass parts per 100.0 mass parts of the binder resin: wherein in formula (1), Prepresents a macromolecular segment; Lrepresents a single bond or a divalent linking group; Rto Reach independently represent a hydrogen atom, halogen atom, alkyl group, alkoxy group, hydroxy group, or aryl group; m represents a positive integer; and when m is equal to or greater than 2, a plurality of L's, a plurality of R's, a plurality of R's, and a plurality of R's may be the same as or different from each other. 

A magnetic toner is provided, which has a magnetic toner particle containing a binder resin, a wax, and a magnetic body, wherein, when Dn is a number-average particle diameter of the toner, CVis coefficient of variation of a brightness variance value of the toner in a particle diameter range of Dn &#x2212;0.500 to +0.500, and CVis coefficient of variation of a brightness variance value of the toner in a particle diameter range of Dn &#x2212;1.500 to &#x2212;0.500, a relationship CV/CV&#x2264;1.00 is satisfied; an average brightness of the toner in the range of Dn &#x2212;0.500 to +0.500 is 30.0 to 60.0; and when, in a cross section of the toner observed using a transmission electron microscope, which is divided with a square grid having a side of 0.8 &#x3bc;m, coefficient of variation CVof an occupied area percentage for the magnetic body is 40.0 to 80.0%.

Magnetic toner and image-forming method

Provided is a method of producing a toner including a toner particle, the method including: a granulation step of mixing a polymerizable monomer composition containing a polymerizable monomer and an aqueous medium to form a suspension of particles of the polymerizable monomer composition; and a polymerization step of polymerizing the polymerizable monomer in each of the particles of the polymerizable monomer composition in the presence of a metal phosphate containing aluminum as a metal element to provide the toner particle, the content ratio of aluminum in the metal phosphate containing aluminum being 1.0 mol % or more and 95.0 mol % or less with respect to all metal elements, the metal phosphate containing aluminum being obtained by adding an aluminum compound to the aqueous medium and/or the suspension.

Method of producing toner

A method for manufacturing an organic EL display device is provided in which an organic compound layer is formed by vapor deposition after a layer used for patterning the organic compound layer has been formed, so that the organic compound layer is formed without being affected by the surface tension of the sides of the layer for the patterning.

Method for manufacturing organic EL display device

There is provided a method of forming a fluorite crystal and an exposure apparatus including this fluorite crystal. A method of manufacturing a device using the exposure apparatus is also provided.

Method of producing fluorite crystal, fluorite and optical system incorporating the same

Disclosed is a method of performing assay to a fluorite sample, which includes a first step for dissolving a fluorite sample, containing Ca and F, by use of a solvent, a second step for removing Ca and F from an obtained solution, and a third step for assaying, through ICP-MS, the solution having Ca and F removed therefrom. Also disclosed is a method of producing a fluorite crystal and an exposure apparatus using such fluorite crystal, and a device manufacturing method using such exposure apparatus. The assaying method of the present invention ensures assay and evaluation of a fluorite sample, of sensitivity several times higher than conventional methods.

Growing community of inventors

Numazu, Japan

Kenji Ookubo