Fujifilm Corporation

Fuji Photo Film Company, Limited

Fujfilm Corporation

Jun Ogasawara

Yasuhiro Shimada

Kiyoshi Takeuchi

Shigeki Uehira

Satoshi Sano

Masayuki Mishima

Yasuaki Deguchi

Tatsuya Igarashi

Seiji Ichijima

Hisashi Mikoshiba

Naoto Matsuda

Akira Ikeda

Taiji Katsumata

Mario Aoki

Masaharu Sugai

Osamu Uchida

Saisuke Watanabe

An organic electroluminescent device, which has, between a pair of electrodes, at least one organic layer including a light-emitting layer, in which the organic layer contains a specific tetraphenylene compound, and in which the light-emitting layer contains a phosphorescent material; and a specific tetraphenylene compound that can be used in the device.

Tetraphenylene compounds for organic electroluminescent device

Organic electroluminescent device

To provide an organic electroluminescent device which suppresses crystallization of a material to be used in an organic electroluminescent device and which is good in luminous characteristics, device drive durability and storage stability, the organic electroluminescent device has at least one organic layer including a light emitting layer between a pair of electrodes, wherein the light emitting layer contains a compound represented by formula (1) defined in the specification and a light emitting material.

To provide an organic electroluminescent device having excellent durability and having high luminous efficiency and luminance, the organic electroluminescent device includes an organic compound layer containing a hole transport layer, a light emitting layer, a block layer, and an electron transport layer between a pair of electrodes, wherein the block layer contains an electron transport material and an electrically inactive organic compound capable of being subjected to dry film formation and having an energy difference Eg between highest occupied molecular orbital and lowest unoccupied molecular orbital of 4.0 eV or more.

Light emitting device

An organic electroluminescence element, which contains at least one organic layer that includes a luminescent layer between a pair of electrodes, wherein the organic layer contains at least one compound represented by formula (1): wherein Rand Reach independently represent an aryl or heteroaryl group; when Ror Ris a phenyl group, it has no nitrogen-containing heterocyclic group on Ror Ras a substituent; Arand Areach independently represent a group represented by formula (2): wherein Arrepresents an arylene or heteroarylene group; R, R, R, and Reach independently represent a substituent or a hydrogen atom; Lrepresents a substituted or unsubstituted o-arylene or vinylene group, &#x2014;NR&#x2014; (R represents a substituent), &#x2014;O&#x2014;, or &#x2014;S&#x2014;; and m is 0 or 1.

Organic electroluminescence element and silicon compound

An organic electroluminescent device having a pair of electrodes, and at least one organic layer interposed between the pair of electrodes, with the organic layer containing at least one compound represented by formula (1):  

Organic electroluminescent device, and azepine compound and method for producing the same

To provide an organic electroluminescent device having excellent durability and having high luminous efficiency and luminance, the organic electroluminescent device includes an organic compound layer containing a hole transport layer, a light emitting layer, and an electron transport layer between a pair of electrodes, wherein the hole transport layer contains a hole transport material and an electrically inactive organic compound capable of being subjected to dry film formation and having an energy difference Eg between highest occupied molecular orbital and lowest unoccupied molecular orbital of 4.0 eV or more.

To provide an organic electroluminescent device having excellent durability and having high luminous efficiency and luminance, the organic electroluminescent device includes an organic compound layer containing at least one light emitting layer, wherein the light emitting layer contains a light emitting material and an electrically inactive organic compound capable of being subjected to dry film formation and having an energy difference Eg between highest occupied molecular orbital and lowest unoccupied molecular orbital of 4.0 eV or more.

An organic electroluminescent device, which has: 

A yellow dye-forming coupler represented by formula (I):  wherein Q represents a group of nonmetallic atoms that form a 5- to 7-membered ring in combination with the &#x2014;N&#x2550;C&#x2014;N(R)&#x2014;; Rand Reach represent a substituent; Rrepresents an alkyl group; m represents an integer of 0 to 4; and X represents a hydrogen atom, or a group capable of being split-off upon a coupling reaction with an oxidized product of a developing agent; and when Rrepresents a primary alkyl group, Rrepresents &#x2014;(CH)O&#x2014;Rin which Ris an alkyl group having 4 to 8 carbon atoms. A silver halide color photographic light-sensitive material having at least one yellow dye-forming coupler represented by formula (I) in at least one layer provided on a support.

Dye-forming coupler, silver halide photographic light-sensitive material and azomethine dye compound

A dye-forming coupler of the formula (I). A silver halide photographic light-sensitive material that contains at least one dye-forming coupler of the formula (I). A method for producing an azomethine dye, which method comprises using a compound of the formula (I):wherein E is an aryl, heterocyclic, or &#x2014;C(&#x2550;O)W group, in which W is a nitrogen-containing heterocyclic group, Z is an aryl or heterocyclic group, and X and Y each independently are &#x2550;O, &#x2550;S or &#x2550;N&#x2014;R, in which R is a substituent, with the proviso that when E is an aryl or heterocyclic group, X and Y each are &#x2550;O, and that when E is a &#x2014;C(&#x2550;O)W group, Z is a substituted aryl group.

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Minami-ashigara, Japan

Jun Ogasawara