Fuji Photo Film Company, Limited

Fujifilm Corporation

Takashi Hoshimiya

Toshihide Ezoe

Kohzaburoh Yamada

Kazunobu Katoh

Hiroshi Takeuchi

Hiroyuki Suzuki

Shigeo Hirano

Hisashi Mikoshiba

Hisashi Okamura

Kazumi Nii

Yoshihiko Fujie

Junichiro Hosokawa

Naotsugu Muro

Masahiko Taniguchi

Hirokazu Kyota

Minoru Sakai

Hirotomo Sasaki

Toshiaki Kubo

Naoharu Kiyoto

Shoji Yasuda

Ken-ichi Kuwabara

Tetsuo Yamaguchi

Kohji Kawato

Takanori Hioki

Katsumi Kobayashi

Nobuaki Inoue

Yoshio Ishii

Tadashi Inaba

Kazuki Yamazaki

Masato Taniguchi

Mamoru Sakurazawa

Tetsuo Yoshida

Naoki Asanuma

Shinichi Ichikawa

Ryoji Nishimura

Masafumi Mizuno

Sinichi Ichikawa

An arylidene-pyrazolone dye of the following formula (1): wherein R, R, R, Rand Reach independently represent a monovalent substituent; n indicates an integer of from 0 to 4; when n is 2 or more, plural R's may be the same or different; and Rand Rmay bond to each other to form a cyclic structure.

Coloring composition, thermal transfer recording ink sheet, thermal transfer recording method, color toner, inkjet ink, color filter, and arylidene-pyrazolone dye

An indaniline dye represented by the following formula (1): wherein Rand Rrepresent an unsubstituted linear or branched alkyl group having from 2 to 5 carbon atoms; Rrepresents an unsubstituted linear or branched alkyl group having from 1 to 3 carbon atoms; provided that the total number of the carbon atoms of R, Rand Ris 6 or 7.

Indaniline dye, thermal transfer recording ink sheet, thermal transfer recording method, color toner, inkjet ink, and color filter

An azo dye of the following formula: wherein R, R, Rand Rrepresent a hydrogen atom or a substituent; Rand Reach independently represent a substituent; n indicates 0 to 3. The dye has an excellent optical characteristic with sharp absorption and excellent fastness.

Azo dye compound, coloring composition, ink sheet for thermal transfer recording, thermal transfer recording method, color toner, ink for inkjet, and color filter

A method for forming color images comprising subjecting a silver halide color photosensitive material to a development processing in the presence of a compound (A) defined below, wherein the silver halide color photosensitive material having a blue-sensitive unit, a green-sensitive unit and a red-sensitive unit, each of which comprises at least one silver halide emulsion layer, and at least one non-light-sensitive layer on a support, compound (A): a heterocyclic compound having one or two hetero atoms, the heterocyclic compound being capable of increasing speed of the silver halide color photosensitive material by the presence thereof in comparison to the case where the heterocyclic compound is absent.

Method for forming color image and silver halide color photosensitive material used for the same

A silver halide color photosensitive material comprising a support and, superimposed thereon, a blue-sensitive layer unit, a green-sensitive layer unit and a red-sensitive layer unit, each of these light-sensitive layer units composed of at least one silver halide emulsion layer, together with at least one non-sensitive layer, wherein compound (A) is contained in at least one layer in the silver halide color photosensitive material, compound (A) being a compound capable of releasing compound (Ac1) by oxidation coupling reaction with a color developing agent, compound (Ac1) being a heterocyclic compound which when added, is capable of enhancing the sensitivity of the photosensitive material as compared with that exhibited when not added, provided that the heterocyclic ring of the heterocyclic compound has 1 or 2 hetero atoms.

Silver halide color photosensitive material

Silver handle emulsion and silver halide photographic lightsensitive material

Silver halide photographic light-sensitive material and processing method thereof

A thermographic recording element having an image forming layer contains an organic silver salt, a reducing agent, an optional photosensitive silver halide, and a specific nucleating agent. The element has high Dmax, high sensitivity, satisfactory contrast, low fog, and minimal dependency of photographic properties on developing temperature.

Thermographic recording elements

A hydrazine compound represented by the following formula (I):

Hydrazine compound and silver halide photographic light-sensitive

A silver halide photographic material is described, which contains at least one compound represented by the following formula (S1): ##STR1## wherein R.sub.11 represents an alkyl group, an acyl group, an alkoxycarbonyl group, a carbamoyl group, a sulfonyl group, or a sulfamoyl group; R.sub.12 represents a hydrogen atom, an alkyl group or an acyl group, provided that when R.sub.11 represents an alkyl group, R.sub.12 represents an alkyl group, R.sub.11 and R.sub.12 may be linked with each other to form a 5- to 7-membered ring; R.sub.13 represents a hydrogen atom, an alkyl group, an aryl group, or a heterocyclic group; R.sub.14 represents a hydrogen atom, an alkyl group, an aryl group, or a heterocyclic group; and L represents --CO--, --SO.sub.2 -- or --SO--.

Silver halide photographic material

A silver halide photographic material comprising a support having thereon at least one light-sensitive silver halide hydrophilic colloid emulsion layer, at least one light-insensitive hydrophilic colloid layer interposed between the support and at least one silver halide emulsion layer, and at least one hydrazine derivative selected from the group consisting of compounds represented by the general formula (1) and (2) contained in the at least one of hydrophilic colloid layers provided in the same side of the support as that coated with the light-sensitive silver halide hydrophilic colloid emulsion layer: ##STR1## wherein their substituents are defined in the specification.

A silver halide photographic material is disclosed, comprising a support having provided thereon at least one silver halide emulsion layer, at least one layer of the emulsion layer and other hydrophilic colloid layers containing at least one hydrazine-type nucleating agent having, in the vicinity of the hydrazine group, an anionic group or a nonionic group which forms an intramolecular hydrogen bond with a hydrogen atom of the hydrazine, and also containing at least one of the onium salt compounds represented by formulae (a), (b) and (c), or at least one of the amine compounds represented by formulae (d), (e), (f), (g), (h), (i) and (j). Also disclosed is a method for processing, after exposure, the silver halide photographic material described above with a developer containing a reductone-type developing agent and having a pH of 12 or less.

A silver halide photographic material comprising a hydrazine compound is described, wherein the hydrazine compound is selected from (a) a hydrazide compound having an acyl group substituted with an anionic group and with an electron-attracting group and (b) a hydrazide compound having an acyl group substituted with an electron-attracting group and with a nonionic group which forms an intramolecular hydrogen bond with a hydrogen atom in hydrazide compound.

Growing community of inventors

Kanagawa, Japan

Takashi Hoshimiya