Fujifilm Corporation

Katsuyuki Yofu

Kimiatsu Nomura

Tetsuro Mitsui

Mitsumasa Hamano

Takashi Kato

Katsuhiro Shimono

Koji Takaku

Naoyuki Hayashi

Daigo Sawaki

Eiji Fukuzaki

Yuki Hirai

Seiya Sakurai

Akihito Amao

Akimitsu Haijima

Toshihiro Kamada

An ink composition contains (a) a compound which is represented by the following Formula (1) and has a specific molecular weight, (b) a colorant, (c) a polymer having an SP value of equal to or greater than 17 and equal to or less than 24, and (d) water, in which there is a specific relationship between a log P value of the component (a) and an SP value of the component (c). An ink set contains the ink composition, and an ink jet recording method uses the ink composition:  R represents a specific alkyl group; Zrepresents a single bond, &#x2014;NR&#x2014;, or &#x2014;O&#x2014;; Zrepresents &#x2014;NR&#x2014; or &#x2014;O&#x2014;; at least one of Zor Zis &#x2014;NR&#x2014;; Rrepresents a hydrogen atom or a specific alkyl group; and L represents a specific alkylene group or &#x2014;CH&#x2014;O&#x2014;CH&#x2014;.

Ink composition, ink set, and ink jet recording method

A method for manufacturing an &#x3b1;-bromoacetophenone compound includes brominating a specific phenyl compound by reacting the specific phenyl compound with bromine in a solvent including at least one organic acid ester compound so as to obtain the &#x3b1;-bromoacetophenone compound that is a liquid at 5&#xb0; C. to 30&#xb0; C.

Method for manufacturing &#x3b1;-bromoacetophenone compound

An ink composition contains the following (A) to (D): (A) a polymerizable compound having an ethylenically unsaturated group, (B) a photopolymerization initiator other than a photopolymerization initiator having a biimidazole structure, (C) water, and (D) a chain transfer agent precursor represented by the following Formula (1).  In Formula (1), each of Rto Rrepresents a hydrogen atom or a substituent; X represents an oxygen atom or a sulfur atom; and M represents an alkali metal.

Ink composition, ink set, and image formation method

A method for producing an &#x3b1;-halogenoacetophenon compound includes reacting a specific &#x3b1;-halogenocarboxylic halide compound and a specific phenyl compound in the presence of a Lewis acid in a solvent, in which the &#x3b1;-halogenoacetophenon compound and the phenyl compound are reacted with each other in a molar ratio of the Lewis acid to the phenyl compound represented below.2&#x2266;Lewis acid/phenyl compound&#x2266;6

Method for producing &#x3b1;-halogenoacetophenon compound, and &#x3b1;-bromoacetophenon compound

The invention provides an ink composition for inkjet printing, the ink composition containing water, a coloring material, a polymerizable compound, a polymerization initiator represented by the following Formula (X), and polymer particles having a glass transition temperature of 90&#xb0; C. or higher, a mass ratio of the polymer particles to the polymerization initiator represented by Formula (X) being in a range of from 1:10 to 10:1 [in Formula (X), each of R, R, R, and Rindependently represents a hydrogen atom or a substituent; and n represents an integer from 1 to 4]. 

Ink composition for inkjet printing, ink set, and image forming method

A curable resin composition comprises fine particles, a polymerizable compound having an ethylenic unsaturated group, a photopolymerization initiator having a betaine structure; and water.

Curable resin composition, water-soluble ink composition, ink set, and image-forming method

A photopolymerization method in which an ink composition including (A) a polymerizing compound having an ethylenic unsaturated group, (B) a photopolymerization initiator represented by Formula (1) described below, and (C) a hydrogen donor having a structure in which a nitrogen atom is directly bonded to an aromatic ring, in which the aromatic ring has an electron-withdrawing group or the nitrogen atom constitutes a hetero ring, is photopolymerized under acidic conditions, in Formula (1), each of Rto Rrepresents a hydrogen atom, a halogen atom, an alkyl group, or an alkoxy group.

Photopolymerization method, ink set, ink composition, and water-soluble biimidazole

There is provided a compound represented by a specific formula, which has an absorption maximum at 400 nm or more and less than 720 nm in a UV-visible absorption spectrum, wherein a molar extinction coefficient is 10,000 mol&#xb7;l&#xb7;cmor more at the absorption maximum wavelength, and a difference between a melting point and a deposition temperature (a melting point&#x2212;a deposition temperature) is 31&#xb0; C. or more.

Photoelectric conversion material, film containing the material, photoelectric conversion device, method for preparing photoelectric conversion device, method for using photoelectric conversion device, photosensor and imaging device

A photoelectric conversion device comprising an electrically conductive film, an organic photoelectric conversion film, and a transparent electrically conductive film, wherein the organic photoelectric conversion film contains a compound represented by the following formula (1) and an n-type organic semiconductor: 

Photoelectric conversion device, photoelectric conversion device material, photosensor and imaging device

An organic compound and a photoelectric conversion device containing the organic compound are disclosed. The organic compound and device realize high photoelectric conversion efficiency, low dark current and high-speed responsivity. It has been found that when this organic compound and an n-type semiconductor are used in combination, high-speed responsivity can be realized while maintaining high heat resistance, an aspect of which has not been seen when the connection part between a donor part and an acceptor part is a phenylene group.

Photoelectric conversion material, film containing the material, photoelectric conversion device, production method thereof, photosensor, imaging device and their use methods

A photoelectric conversion element is provided and includes: an electrically conductive thin layer; an organic photoelectric conversion layer; and a transparent electrically conductive thin layer. The organic photoelectric conversion layer contains: a compound represented by formula (I); and a fullerene or a fullerene derivative. Formula (I):  In the formula, Zrepresents an atomic group necessary for forming a 5- or 6-membered ring, L, Land Leach independently represents an unsubstituted methine group or a substituted methine group, Drepresents an atomic group, and n represents an integer of 0 or more.

Photoelectric conversion element and imaging device

Provided is a photoelectric conversion device comprising a transparent electrically conductive film, a photoelectric conversion film, and an electrically conductive film, wherein the photoelectric conversion film contains a compound represented by the following formula (i): 

Photoelectric conversion device and imaging device having decreased dark current

A photoelectric conversion device includes an organic photoelectric conversion layer, and suppresses sensitivity degradation caused by the light irradiation. A photoelectric conversion deviceis formed by stacking a first electrode layer, a photoelectric conversion layerincluding an organic material, and a second electrode layeron a substrate, in which the photoelectric conversion layerhas a bulk hetero structure of a P-type organic semiconductor and an N-type organic semiconductor, and a difference between an ionization potential of the P-type organic semiconductor and an apparent ionization potential of the bulk hetero structure is 0.50 eV or less. Accordingly, it is possible to suppress sensitivity degradation caused by the light irradiation.

Photoelectric conversion device and imaging device

A photoelectric conversion device is provided and includes: a first electrode, a second electrode, and a photoelectric conversion layer between the first and second electrodes, the photoelectric conversion layer containing a mixture of an organic photoelectric conversion dye, a fullerene or a fullerene derivative, and a fullerene polymer; various embodiments of the device, a photosensor, an imaging device, and production methods for these devices.

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Kanagawa, Japan

Katsuyuki Yofu