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US 8,282,721 B2Granted
Coloring composition, thermal transfer recording ink sheet, thermal transfer recording method, color toner, inkjet ink, color filter, and arylidene-pyrazolone dye
AssigneeFUJIFILM Corporation
InventorsYoshihiko Fujie, Shinichi Ichikawa, Takashi Hoshimiya, Hisashi Mikoshiba, Naotsugu Muro
Life of this patent
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Abstract
An arylidene-pyrazolone dye of the following formula (1): wherein R1, R2, R3, R4 and R5 each independently represent a monovalent substituent; n indicates an integer of from 0 to 4; when n is 2 or more, plural R3's may be the same or different; and R1 and R2 may bond to each other to form a cyclic structure.
Claims10
An arylidene-pyrazolone dye of the following formula (1):
- wherein R1, R2, R3, R4 and R5 each independently represent a monovalent substituent;
- n indicates an integer of from 0 to 4;
- when n is 2 or more, plural R3's may be the same or different;
- and R1 and R2 may bond to each other to form a cyclic structure.
1 more element
Dependencies are inferred from the claim text.