W/O-type emulsion ink composition for writing utensil and writing utensil

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United States of America Patent

PATENT NO 8784546
APP PUB NO 20130200307A1
SERIAL NO

13580261

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A W/O-type emulsion ink composition for a writing tool having an aqueous component dispersed in an oil component, the oil component including a fluorescent coloring agent, and the aqueous component including a fluorescent whitening agent and water.

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Patent Owner(s)

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ZEBRA CO LTDSHINJUKU-KU TOKYO 162-8562

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Fukai, Taku Tokyo, JP 1 1
Fuse, Makoto Tokyo, JP 10 27
Nemoto, Eriko Tokyo, JP 1 1
Ugajin, Makoto Tokyo, JP 2 3

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