Canon Kabushiki Kaisha

Ricoh Company, Ltd.

Ryuji Higashi

Koichi Sato

Masayuki Ikegami

Keiichiro Tsubaki

Sakae Suda

Ikuo Nakazawa

Keiko Yamagishi

Koichi Suzuki

Taiki Watanabe

Takayuki Teshima

Masahiro Masuzawa

Hideo Yanagita

Kohji Matsuoka

Takeshi Miyazaki

Masato Tanaka

Yukio Hanyu

Atsushi Fujii

Takaho Shibata

Kazumichi Nakahama

Isao Kawata

Ryo Natori

Akiko Kitao

Yuu Zama

Keigo Mizusawa

Koichi Nakata

Taichi Shintou

Shinji Takagi

Takayuki Toyoda

Masayoshi Kato

Haruki Mori

Yuya Chimoto

Masanori Seki

Yuto Ito

Masaru Sugita

Yusuke Kanno

Takeshi Yamamoto

Hiroshi Tanabe

Ken Eguchi

Takeshi Sekiguchi

Mikio Sanada

Masashi Hirose

Kohei Watanabe

Masaki Nonaka

Hideki Anayama

Takeshi Okada

Tomoya Ohmura

Kengo Kanazaki

Tomoko Maruyama

Hidetoshi Hirano

Hajime Muta

Okitoshi Kimura

Hiromitsu Kawase

Yutaka Tani

Hitoshi Toma

Shubun Kujirai

Ai Hayakawa

Anna Hirowatari

Daisuke Nose

Takakazu Mizutani

A polymer dye includes at least one repeating unit represented by the following structural formula 1 and at least one selected from the group consisting of repeating units represented by the following structural formulas 2 and 3: Hydrogen peroxide present in or generated through enzymatic reaction in a biological sample can be detected by using the polymer dye.

Polymer dye for detecting hydrogen peroxide and structure for detecting hydrogen peroxide

A disclosed liquid composition includes particles; a resin; a solvent A; and a solvent B differing from the solvent A, wherein a surface tension with respect to air at 25° C. is 25 mN/m or more and less than 50 mN/m, a 90% diameter is 2.5 μm or less, and a median diameter is 1 μm or less.

Liquid composition

An inorganic particle layer for use in an electrode of a non-aqueous electrolyte power storage element is provided. The inorganic particle layer includes an inorganic particle and a polymer. The inorganic particle is insulating and has a surface potential. The polymer has an ionic functional group (A) and an ion-conducting functional group (B) each charged opposite to the surface potential of the inorganic particle. The inorganic particle and the polymer are bonded to each other.

Inorganic particle layer, electrode, electrode element, and non-aqueous electrolyte power storage element

A liquid composition for manufacturing electrodes contains a radical polymerizable composition containing an ethylenically unsaturated compound having an oxyethylene group and a polymerization inhibitor, wherein infrared absorption spectra before curing the radical polymerizable composition include a first absorption band in a range of 1640 to 1620 cm, a second absorption band in a range of 1430 to 1400 cm, and a third absorption band in a range of 820 to 800 cm, and the second absorption band has a greater absorption intensity than the third absorption band, and the third absorption band has a greater absorption intensity than the first absorption band, and

Liquid composition, method of manufacturing electrodes and method of manufacturing electrochemical device

A liquid composition includes particles and a solvent, wherein a contact angle of the liquid composition with respect to a substrate is greater than a contact angle of the solvent with respect to the substrate, and the contact angle of the substrate with respect to water observed 9 seconds after the substrate comes into contact with the water is 45 degrees to 75 degrees.

Liquid composition and method for producing electrochemical device

To determine and detect 8-oxo-2'-deoxyguanosine in an aqueous sample solution with high sensitivity and specifically, provided is a polymer including a repetition structure represented by any one of the following general formulae 2 to 5, in which a group represented by any one of the following general formulae 6 to 11 is linked to the repetition structure represented by any one of the following general formulae 2 to 5 through a divalent linking group L. 

Polymer

Provided are an electrophotographic photosensitive member including a support and a photosensitive layer above the support, in which a surface layer of the electrophotographic photosensitive member includes a polymerization product of a composition containing a specific hole transporting compound, and an electrophotographic apparatus and a process cartridge including the electrophotographic photosensitive member. Also provided is a method of producing the electrophotographic photosensitive member, including (i) forming a coating film of a coating solution for a surface layer which is a composition containing a specific hole transporting compound, and (ii) forming the surface layer of the electrophotographic photosensitive member by a polymerization reaction of the composition containing the specific hole transporting compound.

Electrophotographic photosensitive member, electrophotographic apparatus, process cartridge, and method of producing electrophotographic photosensitive member

A pigment dispersion has low viscosity and good dispersion property without depending on pigment species. The pigment dispersion contains a dispersion medium, an organic pigment, and a triazo compound having a specific structure.

Pigment dispersion, method for manufacturing toner, aqueous ink, and triazo compound

An electrophotographic photosensitive member has a surface layer that contains a polymer of a hole transport material having at least one monovalent polymerizable functional group. The hole transport material is represented by Formula (1) where n is an integer of 1 to 5, Zis represented by Formula (2) Zis a hydrogen atom or the group represented by Formula (2), and the monovalent polymerizable functional group is represented by Formula (3) 

Electrophotographic photosensitive member, electrophotographic apparatus, process cartridge, and method of manufacturing electrophotographic photosensitive member

Provided is a polymer that can detect a low-molecular weight compound, in particular, 8-OHdG with high sensitivity and can be repeatedly used. Specifically, provided is a polymer including repeating units each represented by the following formula (1). In the formula (1), Rand Rare each independent for each repeating unit, Rrepresents a hydrogen atom or an alkyl group, and Rrepresents a group represented by the following formula (2) in at least one repeating unit, and represents a phenyl group, a hydroxyl group, an amino group, or a carboxyl group in any other repeating unit, and the group may be substituted with an alkyl group. In the formula (2), Rrepresents a hydrogen atom, an alkyl group, or an aryl group, L represents a divalent linking group, and * represents a site to be bonded to the carbon atom bonding to Rin formula (1). 

The invention provides an aqueous ink containing a coloring material, wherein the coloring material is a self-dispersible pigment in which a functional group containing another atomic group and an anionic group such as a carboxylic acid group, a sulfonic acid group, a phosphoric acid group or a phosphonic acid group are bonded to a particle surface of a pigment such as carbon black or an organic pigment, and a standard deviation of an introduced amount of the functional group is 0.0380 or less.

Aqueous ink, ink cartridge and ink jet recording method

The invention provides an aqueous ink containing a self-dispersible pigment having a carboxylic acid group bonded directly or through another atomic group to a particle surface of a pigment and a lactone group bonded to the particle surface of the pigment, wherein, as determined by a selective neutralization method, an introduced amount of the carboxylic acid group is 0.60 mmol/g or more and a ratio of an introduced amount (mmol/g) of the lactone group to the introduced amount (mmol/g) of the carboxylic acid group is 0.20 time or less.

The invention provides a production process for a self-dispersible pigment, having a step of bonding a functional group containing a hydrophilic group to a particle surface of a pigment by causing at least one treatment agent selected from the group consisting of a compound represented by the following general formula (1) and a compound represented by the following general formula (2) to react with the particle surface of the pigment: wherein Aand Aare each a carboxylic acid group or the like.

Production process for self-dispersible pigment, self-dispersible pigment, ink, ink cartridge and ink jet recording method

The invention provides a production process for a self-dispersible pigment, comprising a step of bonding a functional group containing a hydrophilic group to a particle surface of a pigment by causing at least one treatment agent selected from the group consisting of a compound represented by the following general formula (1), a compound represented by the following general formula (2) and a compound represented by the following general formula (3) to react with the particle surface of the pigment. 

The invention provides a production process for a self-dispersible pigment, including a step of bonding a functional group containing a hydrophilic group to a particle surface of a pigment by causing a compound represented by the following general formula (1) (Ris a halogen atom, Ris an alkali metal, Ris a single bond, &#x2014;CO&#x2014;, &#x2014;CONH&#x2014; or &#x2014;SO&#x2014;, and Ris a group having at least one of an aliphatic group and an aromatic group and being substituted with a hydrophilic group such as a carboxylic acid group) to react with the particle surface of the pigment: 

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Kawasaki, Japan

Ryuji Higashi