Fuji Photo Film Company, Limited

Fujifilm Corporation

Mitutoyo Mfg. Co., Ltd.

Tetsuo Nakamura

Takanori Hioki

Katsuyuki Takada

Sumito Yamada

Katsuhisa Ohzeki

Akito Yokozawa

Tatsuya Igarashi

Shigeru Ohno

Masayuki Mishima

Kiyoshi Kawai

Tatsuya Ishizaka

Kimiyasu Morimura

Ryuji Abe

Yoshiro Ochiai

Yoshio Inagaki

Hisashi Mikoshiba

Kazumi Nii

Ichizo Toya

Naoto Matsuda

Junichiro Hosokawa

Naoyuki Hanaki

Junji Nishigaki

Takeshi Murakami

Fumitaka Ueda

Yoshio Shimura

Jun Matsumoto

Hideo Morita

Kenji Abiko

Takashi Furuto

Minoru Fukuyoshi

An organic electroluminescent device and a method for producing the same, the organic electroluminescent device including a luminescent layer produced by a vapor-deposition method disposed between a pair of electrodes, the luminescent layer containing at least one host material and at least one metal complex including a partial structure represented by formula (I): wherein M represents a metal atom, R, Rand Rto Reach independently represent a hydrogen atom or a substituent, and Rrepresents a group represented by formula (II), an alkoxy group or an aryloxy group: wherein Rto Reach independently represent a hydrogen atom or a substituent, provided that at least two of them each independently represent an alkyl group or an aryl group.

Organic electroluminescent device and method for producing the same

To provide an organic electroluminescent device having excellent durability and having high luminous efficiency and luminance, which can be effectively utilized for surface light sources such as full color displays, backlights, and illuminating light sources and light source arrays such as printers, the organic electroluminescent device includes at least one organic compound layer containing a light emitting layer between a pair of electrodes, wherein the light emitting layer contains a host material and a phosphorescent material; the host material is a five-coordinate metal complex; and the phosphorescent material is at least one Ir complex having a specific partial structure.

Light emitting device

An image-forming method comprising: employing a silver halide color photographic light-sensitive material, comprising, on a support, at least one silver halide emulsion layer containing a yellow dye-forming coupler, at least one silver halide emulsion layer containing a magenta dye-forming coupler, at least one silver halide emulsion layer containing a cyan dye-forming coupler, at least one color-mix preventing layer and at least one protective layer, wherein the said silver halide emulsion layer containing a yellow dye-forming coupler includes a blue-sensitive silver halide emulsion having a silver chloride content of 90 mole % or more and containing at least one specific blue-sensitive sensitizing dye; and exposing the said silver halide color photographic light-sensitive material to a blue semiconductor laser of a wavelength shorter by 30 nm to 60 nm than the wavelength at which the said blue-sensitive silver halide emulsion has the spectral sensitivity maximum.

Image forming method using a silver halide color photographic light-sensitive material, and silver halide color photographic light-sensitive material

Disclosed is a silver halide photographic material which comprises at least one methine dye represented by the following formula (I): wherein Y represents a furan ring or a pyrrole ring, and Y may further be condensed with other 5- or 6-membered carbocyclic ring or heterocyclic ring, or may have a substituent; the bond between two carbon atoms in which Y is condensed may be a single bond or a double bond; Z represents an atomic group necessary to form a 5- or 6-membered nitrogen-containing heterocyclic ring, and Z may further be condensed with other 5- or 6-membered carbocyclic ring or heterocyclic ring; R represents a substituted or unsubstituted alkyl group, aryl group, or heterocyclic group; D represents a group necessary to form a methine dye; Land Leach represents a methine group; p represents 0 or 1; M represents a counter ion; and m represents a number of 0 or higher necessary to neutralize the charge in the molecule.

Silver halide photographic material and methine dye

A silver halide color photosensitive material, which has: at least each one layer of yellow-, magenta- and cyan-color-forming photosensitive silver halide emulsion layers on a reflective support, and at least one non-light-sensitive non-color-forming hydrophilic colloidal layer; wherein at least one of the photosensitive silver halide emulsion layers contains a silver halide emulsion containing 90 mol % or more of silver chloride, and a compound having a repetitive unit of formula (I) is contained: wherein Ris &#x2014;OR, &#x2014;SR or &#x2014;N&#x2014;R(&#x2014;R'), where R and R&#x2032; are a hydrogen atom, or an alkyl, aryl, aralkyl, cycloalkyl or heterocyclic group, or R and R&#x2032; may form a saturated carbon ring or a heterocycle; Rand Rare a hydrogen atom or an alkyl group; Yand Yare a polymethylene, arylene or cycloalkylene group; Z is &#x2014;O&#x2014;, &#x2014;SO&#x2014; or &#x2014;CH&#x2014;; and m is 0 or 1.

Silver halide color photosensitive material and image forming method

A silver halide photographic material including at least one methine dye represented by the following general formula (I) and at least one coupler represented by the following general formula (XX): wherein Xand Xeach represents an oxygen atom, a sulfur atom, a selenium atom, a tellurium atom, or a nitrogen atom; Yrepresents a furan, pyrrole or thiophene ring which may be condensed with another 5- or 6-membered carbon ring or heterocycle or may have a substituent group; Yrepresents an atomic group necessary for forming a benzene ring or a 5- or 6-membered unsaturated heterocycle, which may be further condensed with another 5- or 6-membered carbon ring or heterocycle or may have a substituent group; a bond between two carbon atoms by which Yand Yare each condensed with the carbon ring or the heterocycle may be a single bond or a double bond; Rand Reach represents a substituted or unsubstituted alkyl, aryl or heterocyclic group; L, Land Leach represents a methine group; nrepresents 0 or 1; Mrepresents a counter ion; and mrepresents a number of 0 or more necessary for neutralizing a charge in a molecule; wherein Qrepresents a substituted or unsubstituted aryl group; Qrepresents a substituted or unsubstituted alkyl group; Qrepresents a hydrogen atom, a halogen atom, an alkoxyl group or an alkyl group; and X represents a hydrogen atom or a group to be released by a reaction with an oxidant of a developing agent.

Silver halide photographic material

Image-forming method using a silver halide color photographic light-sensitive material, and silver halide color photographic light-sensitive material

A method of preparing a dye solution having a high concentration and high stability, wherein a counter ion-free dye and a base having a pKa value of from 6.6 to 9.0 are dissolved in a solvent having a relative dielectric constant of at least 10 at 20&deg; C., and a silver halide emulsion and a silver halide photographic material which are reduced in fogging by the use of the dye solution prepared in accordance with the aforesaid method.

Method of preparing dye solution, and methods of producing silver halide emulsion and silver halide photographic material

Silver halide photographic emulsion and silver halide photographic material

A silver halide photographic light-sensitive material is disclosed, including at least one silver halide emulsion layer, wherein the silver halide grain contained in the emulsion layer is silver chloroiodide or silver chloroiodobromide having a silver chloride content of 90 mol % or more and a silver iodide content of 0.01 to 1.0 mol %, at least one hexacyano complex is doped in an amount of at least 1&times;10 mol % based on the total silver amount, and the emulsion layer contains a methine dye represented by the formula (I) as defined.

Silver halide photographic light-sensitive material

The present invention provides a silver halide photographic material that is excellent in photographic speed as well as image graininess and exhibits low residual color even after rapid processing. The silver halide photographic material contains a compound represented by formula (I) and a compound represented by formula (II), as defined.

Growing community of inventors

Minami-ashigara, Japan

Tetsuo Nakamura