Canon Kabushiki Kaisha

Canon Medical Systems Corporation

Yutaka Tani

Takeshi Miyazaki

Masashi Hirose

Taichi Shintou

Satoshi Saito

Masao Nakano

Takayuki Ujifusa

Kaoru Takahashi

Takayuki Toyoda

Yasuaki Murai

Kei Inoue

Yoshio Kinoshita

Takeshi Sekiguchi

Sakae Suda

Masatake Tanaka

Masashi Kawamura

Tomoyuki Noda

Ryuji Higashi

Kazumichi Nakahama

Fumio Yamauchi

Kentaro Ito

Minako Nakasu

Masanori Seki

Kengo Kanazaki

Yoshihide Aikawa

Isao Kawata

Yuki Hasegawa

Ryo Natori

Masahiro Suenaga

Masaru Sugita

Keigo Mizusawa

Keigo Gouda

Ryosuke Nagao

Katsuyuki Hotta

A composition that includes: a homo-N-trans (HNT) iridium complex having an iridium atom, and a first ligand, a second ligand, and a third ligand that are bonded to the iridium atom, the second ligand having the same structure as the first ligand, the third ligand having a different structure from the first and second ligands; and an isomer of the iridium complex, the isomer having an iridium atom, a fourth ligand, a fifth ligand, and the third ligand, the fourth ligand being a ligand represented by the same rational formula as that of the first ligand, and the fifth ligand being a ligand represented by the same rational formula as that of the second ligand. The composition ratio of the isomer relative to a total of the iridium complex and the isomer is 1.5% or more.

Iridium complex-containing composition, organic light emitting device having the same, display apparatus, imaging apparatus, electronic equipment, lighting apparatus, and moving body

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

A compound is represented by the following formula (1). In the compound represented by Formula (1), at least one of Rto Ris a group particularly high electron withdrawing property, such as a sulfonic acid group and a carboxylic acid group or a group having the next highest electron withdrawing property to the sulfonic acid group and the carboxylic acid group, such as a halogen atom.

Compound, ink, ink cartridge and ink jet recording method

There are provided a new compound which has the following general formula (1) and which is useful as a coloring material, an ink containing the compound, an ink cartridge containing the ink and an ink jet recording method including ejecting the ink from a recording head of an ink jet system to record an image on a recording medium. 

An object of the present invention is to provide a magenta toner having high dispersibility of a colorant and good spectral characteristics. A magenta toner includes a magenta toner particle including at least a binder resin, a compound represented by the formula (1), and a colorant, wherein the colorant includes a pigment having a quinacridone skeleton: (wherein Rand Reach independently represent a hydrogen atom, an alkyl group, an aryl group, or an aralkyl group.)

Magenta toner and method for producing the same

An object of the present invention is to provide a magenta toner having high lightness and saturation and having spectral reflection properties having a wider color range. A magenta toner including magenta toner particles each including a binder resin and a colorant, wherein the colorant includes a compound represented by a formula (1): (wherein Rand Rrepresent an alkyl group or an alkoxyalkyl group, and at least one of Rand Rhas not less than 7 carbon atoms).

Magenta toner

The present invention provides a pigment dispersion excellent in dispersibility. Furthermore, the present invention provides a color filter yellow resist composition and an ink composition, which include the pigment dispersion. A pigment dispersion containing at least a compound represented by General formula (1) and a yellow pigment represented by General formula (2) in a dispersion medium and a method for manufacturing the same are provided. Furthermore, a color filter yellow resist composition and an ink composition are provided, wherein images can be displayed with high spectral characteristics and high display contrast because the brightness is high and the hue of yellow is excellent.

Pigment dispersion, ink composition including pigment dispersion, and color filter yellow resist composition including pigment dispersion

To provide a yellow toner having a colorant in a good dispersed state, obtained through excellent granulation performance and having stable developing performance, the yellow toner contains a binder resin, a wax and a colorant, and is characterized by containing as the colorant a compound represented by the following general formula (1) and a compound represented by the following general formula (2). 

Yellow toner

An object of the present invention is to provide a water-insoluble coloring matter compound having high solubility for a solvent and high lightness and chroma and providing a chromaticity closer to the magenta chromaticity represented by the Adobe RGB color space. A water-insoluble coloring matter compound represented by the formula (1) is provided: wherein Rand Rrepresent an alkyl group, and Rrepresents an alkyl group, an aryl group, or an alkoxy group. And the alkyl group, the aryl group and the alkoxy group regarding to Rto Rare capable of having a substituent.

Water-insoluble coloring matter compound, ink using the water-insoluble coloring matter compound, thermal transfer recording sheet and resist composition for color filter

To provide a pigment dispersion excellent in dispersibility and spectral characteristics. The pigment dispersion at least includes: a dispersion medium; a compound represented by a general formula (1), the compound being dispersed in the dispersion medium; and a pigment having a quinacridone skeleton, the pigment being dispersed in the dispersion medium: in the general formula (1), Rand Reach independently represent a hydrogen atom, an alkyl group, an aryl group, or an aralkyl group.

Pigment dispersion, and resist composition for color filter and ink composition each using the pigment dispersion

Provided is a colored resin powder which can reproduce even high lightness and saturation and has spectral reflectance characteristic having a wide gamut. The colored resin powder includes a water-insoluble coloring matter compound represented by the following general formula (1) and a binder resin: in which in the general formula (1), Rand Reach independently represent an alkyl group, and Rrepresents one of an alkyl group, an aryl group, and an alkoxy group.

Colored resin powder and toner using the colored resin powder

To obtain a pigment dispersion and a yellow toner having high coloring power and high dispersibility of a pigment in a dispersion medium, a pigment dispersion containing a compound represented by general formula (1) and a yellow pigment represented by general formula (2) are provided in a dispersion medium. 

Pigment dispersion and yellow toner

A pigment has a compound expressed by Formula (1). The pigment has a number average primary particle size of 30 to 70 nm and has a CuK&#x3b1; characteristic X-ray diffraction spectrum having, when &#x3b8; represents a Bragg angle, a peak at 2&#x3b8;&#xb1;0.20&#xb0; equal to 10.0&#xb0; and a peak at 2&#x3b8;&#xb1;0.20&#xb0; equal to 11.1&#xb0;, the intensity ratio of the 11.1&#xb0; peak to the 10.0&#xb0; peak being 0.1 to 0.6. 

Pigment, method for manufacturing the same, pigment dispersion, and yellow toner

There is provided a colorant compound improved in the dispersibility of an azo pigment into a water-insoluble solvent. The colorant compound is represented by the following general formula (1). Rdenotes an alkyl group having 1 to 6 carbon atoms, or a phenyl group; Rto Reach denote a hydrogen atom, or a substituent represented by the following general formula (2); Rto Reach denote a hydrogen atom, a COORgroup, or a CONRRgroup; and Rto Reach denote a hydrogen atom, or an alkyl group having 1 to 3 carbon atoms; and Pdenotes a polymeric component; Ldenotes an alkylene group having 1 to 3 carbon atoms or an arylene group having 6 to 10 carbon atoms; and * denotes a binding site. 

AZO compound, and pigment dispersant, pigment composition, pigment dispersion and toner including the azo compound

To provide a yellow toner satisfying good toner particles and a superior coloring power, the toner has toner base particles having at least a binder resin, a colorant and a wax component, and contains as the colorant at least a coloring matter compound represented by the following general formula (1) and a pigment represented by the following formula (2). 

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Yokohama, Japan

Yutaka Tani