Fuji Photo Film Company, Limited

Fujifilm Corporation

Shin-ichi Morishima

Michihiro Shibata

Yoshihisa Usami

Yoshio Inagaki

Hisashi Mikoshiba

Kazuto Kunita

Kiyoshi Morimoto

Hiroshi Hayakawa

Masaharu Akiba

Tatsuo Nakamura

An optical information-recording medium which contains a dye having at least two chromophores bonded to each other without any conjugated bond intervening between those chromophores.

Optical information-recording medium, novel oxonol compound and method of recording information

Information recording medium and novel oxonol compound

Anionic infrared-ray absorbing agent, photosensitive composition and planographic printing plate precursor using same

An information recording medium is disclosed, comprising a substrate having provided thereon a recording layer capable of recording information by a laser ray, wherein the recording layer contains a dye compound represented by formula (I-1):

Information recording medium

A developer composition having improved stability to aerial oxidation, which contains at least one compound represented by formulae (A) and (B): ##STR1## where R.sub.1 and R.sub.2 each represent a hydroxyl group, an amino group, an acylamino group, an alkylsulfonylamino group, an arylsulfonylamino group, an alkoxycarbonylamino group, a mercapto group or an alkylthio group; and X represents a group of atoms selected from carbon and nitrogen which forms a 5-membered or 6-membered ring together with the two vinyl carbons substituted by R.sub.1 and R.sub.2, respectively, and the carbonyl carbon of formula (A); ##STR2## where R.sub.3 and R.sub.4 each represent a hydroxyl group, an amino group, an acylamino group, an alkylsulfonylamino group, an arylsulfonylamino group, an alkoxycarbonylamino group, a mercapto group or an alkylthio group; and Y represents a group of atoms selected from carbon, nitrogen and oxygen containing at least one ether bond, and Y forms a 6-membered ring together with the two vinyl carbons substituted by R.sub.3 and R.sub.4, respectively, and the carbonyl carbon of formula (B), provided that both R.sub.3 and R.sub.4 are not hydroxyl.

Method of processing silver halide photographic material and composition

Growing community of inventors

Kanagawa, Japan

Shin-ichi Morishima