Adeka Corporation

Sony Corporation

Niigata University

Koichi Shigeno

Toru Yano

Mitsuhiro Okada

Yosuke Maeda

Yutaka Wada

Yohei Aoyama

Masaaki Shimizu

Masatsugu Suwabe

Satoshi Yanagisawa

Tomoyuki Ariyoshi

Keiji Oya

Junko Shimada

Masaki Kimura

Etsuo Tobita

Toshihiro Akimori

Tatsuya Ishida

Tsutomu Sato

Seiji Koike

Toshihiko Takehana

Tsutomu Hoshino

Shohei Fujita

Satoru Kanda

Yukiko Kanehara

Masaru Nagai

Ryoya Otsuki

Ryozo Arata

Yamahiko Egami

Hitomi Toda

Takuya Minamishima

An object of the present invention is to provide a method for preparing ambrein, which can easily and efficiently obtain the ambrein. The object can be solved by a mutated tetraprenyl-&#x3b2;-curcumene cyclase wherein

Efficient method for producing ambrein

Provided are: an aromatic sulfonium salt compound which exhibits low corrosion to a substrate and excellent photolithographic characteristics and is thus useful as a photoacid generator and as a cationic polymerization agent; and a photoacid generator, a resist composition, a cationic polymerization initiator and a cationically polymerizable agent composition, which include the aromatic sulfonium salt compound. The aromatic sulfonium salt compound is represented by the following Formula (I): 

Aromatic sulfonium salt compound, photoacid generator, resist composition, cationic polymerization initiator, and cationically polymerizable composition

A compound represented by the following general formula (1). In the formula, A represents a benzene ring, a naphthalene ring and the like, wherein these rings may be substituted with a halogen atom and the like, Rrepresents a hydrogen atom and the like, Rrepresents a Chydrocarbon group having or not having at least one group selected from an epoxy group, 4-vinylphenyl group and a (meth)acryloyloxy group, or a hydrogen atom, wherein at least one of Rwith n occurrences is a Chydrocarbon group having at least one group selected from an epoxy group, a 4-vinylphenyl group and a (meth)acryloyloxy group, n represents an integer of 1 to 6, and X represents a nitrogen atom, an oxygen atom, a sulfur atom, a phosphorus atom, or an n-valent organic group having 35 or less carbon atoms.

Polymerizable (photosensitive or reactive) cyano-containing compound, a dye, and colored photosensitive composition

Disclosed is a colored (alkali-developable) photosensitive composition using a compound that is excellent in solubility and heat-resistance in a resin composition, and also relates to an optical filter using the colored (alkali-developable) photosensitive composition, specifically a color filter that does not decrease luminance and thus is preferable for image display devices such as liquid crystal display panels. Specifically, disclosed is a colored (alkali-developable) photosensitive composition containing (A) a dye that contains at least one kind of compound represented by any of the general formulas (1) to (4), (B) a polymerizable compound having an ethylenically unsaturated bond or (B') a polymerizable compound having an ethylenically unsaturated bond, which has alkali-developability, and (C) a photopolymerization initiator, and use of the composition. The compound represented by any of the general formulas (1) to (4) is as described.

Colored photosensitive composition

A color conversion filter contains at least one kind of squarylium dye that radiates fluorescence light, has a wavelength conversion capability, absorbs light in an unneeded wavelength region, radiates fluorescence light in a preferable wavelength region, and does not allow decrease in brightness, and thus is preferable for color conversion light-emitting devices, photoelectric conversion devices and the like. Specifically, the color conversion filter has an absorption having a high intensity in the range of 570 to 600 nm, and thus is preferable for use in a color conversion filter that radiates fluorescence light having a high intensity in the range of 600 to 780 nm.

Color conversion filter

The present invention provides a dye that is excellent in solubility and heat-resistance, and a novel compound that is suitable for the dye, and specifically provides a yellow dye having a maximum absorption wavelength in the region of 420 to 470 nm. Furthermore, the present invention provides a colored (alkali-developable) photosensitive composition and an optical filter using the dye, and specifically provides a color filter that does not decrease luminance and thus is preferable for an image display device such as a liquid crystal display panel. Specifically, the present invention provides a novel compound represented by the following general formula (1), a dye using the compound, and a colored (alkali-developable) photosensitive composition and a color filter. The content of the above-mentioned general formula (1) is as described in the description.

Disclosed is a cyanine compound represented by general formula (I) below. Also disclosed are an optical filter using the compound and an optical recording material. 

Cyanine compound and optical filter and optical recording material containing same

The present invention provides green and red conversion films capable of keeping a sufficient intensity of converted light over a long period, and a multicolor emission organic EL device which exhibits light-emitting properties stably over a long period. The present invention includes a pendant-type polymeric compound characterized in that the pendant-type polymeric compound contains at least one repeating unit represented by a general formula (1) and at least one repeating unit represented by a general formula (2), (6) or (7), wherein n/(m+n)=1/100 to 100/100 provided that the molar ratio of (1):(2), (6) or (7) is m:n.

Pendant-type polymeric compound, color conversion film using pendant-type polymeric compound, and multicolor emission organic EL device

Disclosed are a compound that emits fluorescence, particularly in its solid state, and is suited to provide a color converting material with various improved performance properties over prior art and a light emitter, a color conversion filter, a color conversion device, and a photoelectric device each containing the compound; particularly a Schiff base type compound of formula (I) and a coloring material, a color conversion layer, a light absorbing layer, a color conversion filter, a light absorbing filter, a color-converting light-emitting device, and a photoelectric device each containing the compound.  The definition of the symbols in formula (I) is the same as in the specification.

Schiff base type color conversion layer, light absorbing layer, and filter

Disclosed are a compound that emits fluorescence, particularly in its solid state, and is suited to provide a color converting material with various improved performance properties over prior art and a light emitter, a color conversion filter, a color conversion device, and a photoelectric device each containing the compound; particularly a Schiff base type compound of formula (I) and a coloring material, a color conversion layer, a light absorbing layer, a color conversion filter, a light absorbing filter, a color-converting light-emitting device, and a photoelectric device each containing the compound. The definition of the symbols in formula (I) is the same as in the specification.

Schiff base type compound and coloring material containing the same

A near-infrared-ray absorbing material containing a cyanine compound per formula (I) exhibits a sharp light absorption in wavelength range 800-1000 nm, with excellent light resistance. R- R, Y, Yrepresents hydrogen atom, a group of formula (II) or (II'), etc., and Anrepresents a q-valent anion, provided that at least Ris a group of formula (II) or (II&#x2032;) or Anis an ion of formula (III); R- Reach represents a hydrogen atom, hydroxyl group, etc.; Z, Zrepresents a Calkyl group, etc. In formula (II&#x2032;), the bond between G&#x2032; and T&#x2032; is a double bond or a conjugated double bond; G&#x2032; represents a carbon atom; T&#x2032; represents a carbon atom or a nitrogen atom; the ring including G&#x2032; and T&#x2032; represents a 6-membered ring, etc.; w&#x2032; is 0-4; and Rrepresents a hydrogen atom, hydroxy, etc. In formula (III), Rand Rrepresents a halogen-substituted Calkyl group. 

Near-infrared-ray absorbing material containing cyanine compound, and cyanine compound

An optical filter containing at least a clay mineral complex (A). The clay mineral complex (A) comprises a layered clay mineral (B) intercalated with a dye cation (C), and an organic cation (D).

Method for producing an optical filter

An optical recording material comprising at least one kind of a cyanine compound represented by the following general formula (I): wherein ring A and ring B each independently represent a benzene ring or a naphthalene ring which may have a substituent; Rrepresents a group represented by the general formula (II), (II') or (II&#x2033;); R, Rand Reach independently represent a hydrogen atom, an organic group having 1 to 30 carbon atoms, or a group represented by the general formula (II), (II&#x2032;) or (II&#x2033;); Rand Rmay be linked together to form a ring structure; Yand Yeach independently represent an organic group having 1 to 30 carbon atoms or a group represented by the general formula (III); X represents a hydrogen atom, a halogen atom, an alkyl group having 1 to 4 carbon atoms, a phenyl group which may have a substituent, a benzyl group which may have a substituent, or a cyano group; Anrepresents an m-valent anion; m is 1 or 2; and p represents a coefficient keeping the charge neutral.

Optical recording material and cyanine compound

A cyanine compound is represented by formula (I): A: benzene or naphthalene ring. A: 5- or 6-membered ring. R, R: hydrogen atom and the like. R: an alkyl group and the like. R: a substituent by formula (II) or (II'). R: a hydrogen atom and the like. An: a q-valent anion. q: 1 or 2; p: a coefficient for neutral charge. In formula (II): bond between L and T is a double, conjugated double, or triple bond. L: carbon atom. T: carbon, oxygen, sulfur, or nitrogen atom. x, y, z: 0 or 1. s: 0-4. R: hydrogen atom and the like. R, R, and R: hydrogen atom and the like. In formula (II&#x2032;), the bond between L&#x2032; and T&#x2032; is a double or conjugated double bond. L&#x2032;: carbon atom. T&#x2032;: carbon, oxygen, nitrogen atom. s&#x2032;: 0-4. Ring containing L&#x2032; and T&#x2032;: 5-membered ring, may contain a heteroatom.

Cyanine compound and optical recording material

A cyanine compound represented by the general formula (I), (VI) or (VII):  

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Tokyo, Japan

Koichi Shigeno