Canon Kabushiki Kaisha

Seiko Instruments Inc

Nec Corporation

Hitachi-high-technologies Corporation

Sumco Corporation

Research Development Corporation of Japan

Other

Hitachi High-tech Corporation

Nihon Micro Coating Co., Ltd.

Junichi Nishizawa

Sieko Instruments Inc.

Kenji Aoki

Atsushi Tani

Takashige Kasuya

Shuntaro Watanabe

Tetsuya Kinumatsu

Takaaki Kaya

Yusuke Kosaki

Toshifumi Mori

Noritaka Toyoizumi

Ayako Okamoto

Takashi Matsui

Naoto Saito

Tadao Akamine

Yoshihiro Nakagawa

Tsutomu Shimano

Kazumichi Nakahama

Shinnosuke Koji

Masao Suzuki

Kenta Kamikura

Reo Tagawa

Yoshikazu Kojima

Sakae Suda

Shohei Shibahara

Yuna Yamamoto

Satoshi Morinaga

Kunji Shigeto

Emi Watanabe

Takayuki Nakata

Ryoji Takada

Akira Suzuki

Takashi Kenmoku

Mitsuhiro Nakamura

Takeshi Ono

Makoto Hayashida

Kazuhiro Yamamoto

Takayuki Toyoda

Toru Yamazaki

Nobuharu Hoshi

Masaaki Kamiya

Yuhei Terui

Masashi Kawamura

Toshihide Agemura

Tsuneyoshi Tominaga

Yu Yoshida

Kunihiro Takahashi

Taku Shimoda

Takashi Hosaka

Masafumi Shimbo

Kengo Sato

Naotaka Ikeda

Naoto Inoue

Kenji Ookubo

Mariko Yamashita

Tsutomu Saitou

Kotaro Hosoya

Takashi Ichimura

Eiji Kamiyama

Takeshi Ogashiwa

Kazushi Suzuki

Ryoya Terakawa

Yuki Tani

Takehiro Watanabe

Takehiro Tsunemori

Shohei Fukuya

Masahiko Kinbara

Naoyuki Hamada

Takayuki Kaneso

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 contains a toner particle containing a resin component and a wax. The resin component contains a vinyl polymer A having a monomer unit A represented by the formula (A): In a luminance histogram created from STEM observation, the total pixel value C in luminance 0 to 9 and the total pixel value A in luminance 0 to 245 satisfy 0.000≤C/A≤0.250. When the pixel value in luminance 10 to 245 has a maximum value P at luminance X, luminance M-luminance N ranges from 120 to 235, wherein the luminance M denotes a luminance at which the pixel value falls below 20% of P for the first time from the luminance X to 245, and the luminance N denotes a luminance at which the pixel value falls below 20% of the P for the first time from the luminance X to 10.

Toner and method for producing toner

An image forming apparatus includes a first roller pair including a first roller and a second roller, a first driving unit, a second roller pair, a second driving unit, an image forming unit, and a control unit configured to execute a first mode and a second mode. The second mode includes (1) a first processing, (2) a second processing, and (3) a third processing of controlling the first driving unit such that the rotational speed of the first roller pair becomes faster than the second rotational speed. The first mode includes (1) a fourth processing, (2) a fifth processing, and (3) a sixth processing of controlling the first driving unit such that the rotational speed of the first roller pair is decelerated from the first rotational speed to equal to or less than the second rotational speed.

Image forming apparatus

A toner comprising a toner particle comprising a binder resin and an azo dye, wherein the binder resin comprises a polymer A, the polymer A is a polymer having a monomer unit derived from methacrylonitrile, and a relationship among an amount of substance (mol) of the monomer unit derived from methacrylonitrile, an amount of substance (mol) of the azo dye, and the number of azo groups in the azo dye in the toner particle satisfies formula below:[(amount of substance of azo dye (mol))&#xd7;(number of azo groups in azo dye)/(amount of substance of monomer unit derived from methacrylonitrile (mol))]&#x2264;0.500.

Toner

The invention provides a charged particle beam apparatus capable of observing a sample even when light is emitted from the sample, and a sample observation method using the charged particle beam apparatus. The charged particle beam apparatus includes: a charged particle beam source configured to irradiate a sample with a charged particle beam; a detector configured to detect charged particles emitted from the sample; and a control device configured to generate an image based on an output signal from the detector. The charged particle beam apparatus further includes a filter configured to allow at least a part of the charged particles emitted from the sample to transmit through the filter and configured to shield light emitted from the sample. The filter covers a detection surface of the detector expected from the sample.

Charged particle beam apparatus and sample observation method

Provided is a toner has a toner particle containing a binder resin and is characterized in that the binder resin contains a polymer A, which is a polymer of a composition containing a first polymerizable monomer, a second polymerizable monomer and a crosslinking agent, the first polymerizable monomer is at least one monomer selected from the group consisting of (meth)acrylic acid esters having an alkyl group with 18 to 36 carbon atoms, the crosslinking agent has two or more polymerizable double bonds, a content of the first polymerizable monomer in the composition is 5.0 to 60.0 mol %, a content of the second polymerizable monomer is 20.0 to 95.0 mol %, and when the SP values of the first polymerizable monomer, the second polymerizable monomer and the crosslinking agent are denoted by SP, SPand SP, respectively, the formulae 0.60&#x2264;(SP&#x2212;SP)&#x2264;15.00 and SP&#x3c;SP&#x3c;(SP+3.00) are satisfied.

A toner, including a toner particle that contains a binder resin and a release agent, wherein the binder resin contains a polymer A, the polymer A including a first monomer unit derived from a first polymerizable monomer and a second monomer unit derived from a second polymerizable monomer different from the first polymerizable monomer; the first polymerizable monomer is selected from (meth)acrylic acid esters having a Calkyl group; the toner has a first monomer unit content and a second monomer unit content in the polymer A which are within specific ranges, and assuming that an SP value of the first monomer unit is taken as SPand an SP value of the second monomer unit is taken as SP, the formula (1) below is satisfied, and the molecular weight of the release agent is at least 1,000.3.00&#x2264;(SP&#x2212;SP)&#x2264;25.00&#x2003;&#x2003;(1)

The toner has a toner particle in which a toner core containing a binder resin is coated with a shell layer, wherein the binder resin contains a polymer A that has a first monomer unit and a second monomer unit; the first unit is derived from (meth)acrylate ester having an alkyl group having 18 to 36 carbon atoms; the content of the first monomer unit in the polymer is 5.0 to 60.0 mol %; the content of the second monomer unit is 20.0 to 95.0 mol %; the following formula (1) is satisfied when the SP value of the first unit is denoted by SPand the SP value of the second unit is denoted by SP; and the toner core is coated with a highly uniform shell over at least 90% of the circumference of the toner cross section;3.00&#x2264;()&#x2264;25.00&#x2003;&#x2003;(1).

A method of producing a toner including the steps of: mixing resin fine particles, an organic solvent, and a resin R with a dispersion medium containing carbon dioxide, to prepare a dispersion of resin R-containing droplets; and removing the organic solvent by flowing carbon dioxide, wherein the resin fine particles contain one or more resins that have a partial structure A, B, and C, and are soluble in chloroform; the SP value of the partial structure A, the resin R, and the partial structure B satisfy particular relationships; a resin A constituted of the partial structure A and a resin B constituted of the partial structure B are soluble in the organic solvent; and a resin C constituted of the partial structure C is insoluble in the organic solvent.

Resin fine particles, method of producing resin fine particles, method of producing resin particles, and method of producing toner

A method for producing a toner particle include: (a) mixing a binder resin A, resin fine particles containing a resin B, a resin C, an organic solvent, and carbon dioxide, thereby forming a droplet of a resin solution containing the binder resin A, covered with the resin fine particles; (b) applying a pressure by introducing carbon dioxide, thereby precipitating the resin C at the surface of the droplet; and (c) passing carbon dioxide so as to remove the organic solvent from the droplet with the carbon dioxide. The resin C has an organic polysiloxane structure and a weight average molecular weight of 50,000 to 500,000. The ratio of the weight average molecular weight to the number average molecular weight of the resin C is not more than 5.0. The proportion of the resin C to the rein fine particles is 5.0% by mass to 50.0% by mass.

Methods for producing toner particle and producing resin particle

A visualization device includes: an evaluation index calculation unitwhich calculates the value of an evaluation index representing a feature degree for each of combinations of a first attribute group and a second attribute group in terms of data on the second attribute group including one or more attributes and conditioned with the first attribute group including one or more attributes among high-dimensional data to be visualized; and a visualization processing unitwhich generates image information for presenting combinations of the first attribute group and the second attribute group, which are determined to have large evaluation index values based on a predetermined criterion.

Visualization device, visualization method and visualization program

A toner includes toner particles which contain a binder resin, a colorant, a wax, and a resin A having an organic polysiloxane structure; the amount of Si atoms of the toner particles is 4.5 to 10.0; in an analysis of a cross-section of each toner particle, in a surface layer region R from the periphery of the cross-section of the toner particle to the inside at a distance of 10.0% of the particle diameter in the cross-section of the toner particle, the content of Si atoms derived from the organic polysiloxane structure is 90.0% or more with respect to the total amount of Si atoms contained in the toner particle; and in a line analysis along a straight line between the periphery of the surface layer region R and a gravity center of the cross-section, an intensity count of Si atoms in the toner particle satisfies formula Si&#x3e;Si&#x3e;Si&#x3e;Si&#x2265;0.

Toner and method for manufacturing the same

The objective of the present invention is to provide a charged particle beam device, wherein the positional relationship between reflected electron detection elements and a sample and the vacuum state of the sample surroundings are evaluated to select automatically a reflected electron detection element appropriate for acquiring an intended image. In this charged particle beam device, all the reflected electron detection elements are selected when the degree of vacuum inside the sample chamber is high and the sample is distant from the reflected electron detectors, while a reflected electron detection element appropriate for acquiring a compositional image or a height map image is selected when the degree of vacuum inside the sample chamber is high and the sample is close to the reflected electron detectors. When the degree of vacuum inside the sample chamber is low, all the reflected electron detection elements are selected.

Charged particle beam device and charged particle beam device control method

A method of producing a toner containing a toner particle, including the steps of: a) preparing a resin solution by mixing a resin A and an organic solvent, b) mixing the resin solution, a resin fine particle containing a resin B, and a dispersion medium to form a droplet of the resin solution whose surface has been covered with the resin fine particle, and c) removing the organic solvent in the droplet, in which the resin B is a polymer of a monomer composition containing a monomer X having polymerizable unsaturated groups at the both ends; the monomer X has a peak molecular weight of 5,000 to 50,000; the content of the monomer X is 0.10% to 3.00% by mol; and the following formula (1) is satisfied,|SP&#x2212;SP|&#x2266;2.0&#x2003;&#x2003;(1)where SPand SPrepresent solubility parameters of the resin A and the monomer X, respectively.

Method of producing toner and method of producing resin particle

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Tokyo, Japan

Kenji Aoki