Fuji Photo Film Company, Limited

Fujifilm Corporation

Katsuyoshi Yamakawa

Tadahisa Sato

Keizo Kimura

Kozo Sato

Osamu Uchida

Koushin Matsuoka

Hisashi Mikoshiba

Hidetoshi Kobayashi

Shigeru Yamazaki

Yasuhiro Shimada

Ryo Suzuki

Makoto Suzuki

Isamu Itoh

Masuji Motoki

Tadahiro Tsujimoto

Teruo Nagano

Takashi Usami

Tomohito Masaki

Hiroshi Onishi

Keizou Kimura

Takashi Suginome

Osamu Takahashi

Keiji Mihayashi

Hideaki Naruse

Kozo Aoki

Yoshio Ishii

Kei Sakanoue

Seiiti Kubodera

Hideto Mori

Michio Ono

Jiro Tsukahara

Akihiko Ikegawa

Takayoshi Kamio

Genichi Furusawa

Naoki Asanuma

Kazushi Furukawa

Daisuke Urazoe

Koichi Hanaki

Osama Uchida

The invention provides a near-infrared absorbing material, including: at least one of at least one singlet oxygen scavengers, at least one radical scavenger, and at least one antioxidant; and at least one near-infrared absorbing compound obtained by oxidation of a compound represented by the following Formula (II).  In the formula, R, R, R, R, R, R, Rand Rindependently represent a hydrogen atom or an aliphatic or aromatic group; R, R, R, Rand Rindependently represent a substituent; and n, n, n, nand nindependently represent an integer of 0 to 4.

Near-infrared absorbing material

The present invention provides a near-infrared-absorbing material including: a luminescent agent, and a near-infrared-absorbing compound obtained by oxidizing a compound represented by the following formula (II):  wherein R, R, R, R, R, R, Rand Reach independently represent a hydrogen atom, an aliphatic group or an aromatic group; R, R, R, Rand Reach independently represent a substituent group; and n, n, n, nand neach independently represent an integer from 0 to 4.

Near-infrared-absorbing material and near-infrared-absorbing filter

The invention provides a near-infrared-absorbing material comprising at least one first compound selected from the group consisting of a singlet oxygen scavenger, a radical trapping agent and an antioxidant and at least one second compound represented by the following formula (II-1) or (II-2). 

A naphthalocyanine compound of formula (I): wherein R, R, Rand Rrepresent a group of formula (II); R, R, Rand Rrepresent a substituent; Mrepresents two hydrogen atoms, two monovalent metal atoms, etc.; n112, n122, n132 and n142 are 0 to 4; R-Rrepresent H or a substituent; Xand Xrepresent &#x2014;O&#x2014;, &#x2014;S&#x2014; or &#x2014;N(R)&#x2014;; Rand Rrepresent H, an aliphatic group, etc.; n211 is 2 or more; and n212 is 1 or more.

Naphthalocyanine compound and method for producing the same

A compound of the following formula (I): wherein L, L, Land Lrepresent a divalent group; Q, Q, Qand Qrepresent a non-metallic atomic group necessary for forming a hetero ring; R, R, Rand Rrepresent a substituent; n11, n12, n21, n22, n31, n32, n41 and n42 indicate an integer of from 0 to 6; provided that (n11+n21+n31+n41) is not 0; Mrepresents two hydrogen atoms, two monovalent metal atoms, a divalent metal atom, or a divalent substituted metal atom including a trivalent or tetravalent metal atom.

Naphthalocyanine dye and method for producing the same

The present invention provides a black pigment consisting of an oxonol compound having a mean particle diameter ranging from 0.01 to 10.0 micrometers, and a black pigment dispersion and a black resin composition comprising the black pigment.

Black pigment, black pigment dispersion and black resin composition comprising the same

Croconic acid or a salt thereof is easily produced at low cost by a reaction of a hydrocarbon compound consisting of a five-membered ring or a hydrocarbon compound consisting of a five-membered ring having an oxo group and/or a monovalent group linked via an oxygen atom with a halogenating agent.

Process for producing croconic acid or salt thereof

The present invention provides a method of producing a compound represented by the following formula (1) or a compound represented by the following formula (4) or a tautomer thereof, the method including reacting a compound represented by the following formula (2) or a compound represented by the following formula (5) or a tautomer thereof with a compound represented by the following formula (3) or a compound represented by the following formula (6) in the presence of an aluminum alkoxide compound. 

Method of producing amide compound

A method of producing a near-infrared absorbing dye compound, useful for image forming materials, infrared heat-sensitive recording devices, optical film materials, and the like, containing a process of reacting a compound represented by formula (I) with peroxomonosulfuric acid or its salt. 

Method of producing near-infrared absorbing dye compound

The invention provides an aryl ethynyl phthalic acid and derivatives thereof (including fluorine-containing compounds) represented by Formulae 1, 3, 5, 4A and 5A including the structure of Formula 2, and method of producing these compounds, in which an aryl ethynyl phthalic anhydride is formed by subjecting an aryl phthalic acid to ring closing: 

Aryl ethynyl phthalic acid derivative and method for producing the same

The invention is a method for producing &#x3b4;-aminopentadienoate derivatives of formula (1), the method comprising reacting a streptocyanine derivative of formula (2) with an ester derivative of formula (3) in the presence of an organic base. In formulae (1) to (3), Rrepresents an alkyl group or an aryl group; R, R, Rand Rindependently represent a hydrogen atom or an alkyl group; Rand R, or Rand Rmay bond to each other to form a ring; Y represents an electron attractive group; X represents an acid radical; n indicates 0 or a positive number, which is no more than 5; Y may bond to Rto form a ring 

Method for producing &#x3b4;-aminopentadienoate derivatives

A method of producing a near-infrared absorbing dye compound, useful for image forming materials, infrared heat-sensitive recording devices, optical film materials, and the like, containing a process of reacting a compound represented by formula (I) with halogenating agent. 

An ultraviolet-absorbing film comprising a fluorescent brightening agent and having a transmission of the rays of 410 nm or less of 90% or less, wherein the fluorescent brightening agent is represented by the following formula (I):wherein Rand Reach represents a hydrogen atom, an alkyl group or an alkoxyl group; Rand Reach represents an alkyl group; and [A] represents a substituted aryl or substituted ethenyl group.

Ultraviolet-absorbing film containing a fluorescent brightening agent

Method for producing pyridine compounds

Fluorescent lamp cover and lighting fixture

Growing community of inventors

Kanagawa, Japan

Katsuyoshi Yamakawa