Sughrue Mion, PLLC
Optical information-recording medium and dye
The present invention provides an optical information-recording medium capable of recording and reproducing information with laser beams and having excellent recording characteristics, the optical information-recording medium comprising a support and a recording layer capable of recording information by laser beam exposure, wherein the recording layer contains a dye represented by the following formula (I): wherein R1, R2, R3 and R4 each independently represents a hydrogen atom or a substituent; B1 and B2 represent ═CR5— and —CR6═ respectively, or one of B1 and B2 represents a nitrogen atom and the other represents ═CR5— or —CR6═; R5 and R6 each independently represents a hydrogen atom or a substituent; Q1 represents a substituted or unsubstituted arylene group, or a substituted or unsubstituted divalent heterocyclic group; and Q2 represents a substituted or unsubstituted aryl group, or a substituted or unsubstituted heterocyclic group.
Fuji Photo Film Co., Ltd.
G G G G G G G G G G C G G C Y G B G G G G
G11B G11B G11B G11B G11B G11B G11B G11B G11B G11B C09B G11B G11B C09B Y10T G11B B32B G11B G11B G11B G11B
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Tetsuya Hisashi Masatomi
Watanabe Mikoshiba Sen