Water-based ink composition for writing utensil

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 6776829
APP PUB NO 20030196568A1
SERIAL NO

10297063

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Abstract

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Provided is a water based ink composition for a writing instrument comprising at least one of nonionic surfactants comprising polyhydric alcohol fatty acid esters, ethylene oxide adducts of polyhydric alcohol fatty acid esters, ethylene oxide adducts of higher alcohols and alkylphenols, ethylene oxide and propylene oxide adducts of higher alcohols, ethylene oxide adducts of castor oil or hardened castor oil, ethylene oxide adducts of hardened castor oil fatty acid esters and ethylene oxide adducts of higher alkylamines and fatty acid amides and further comprising a colorant, a perfume and water. It is less liable to cause feathering of the lines and has durability of fragrance, in which a perfume is dispersed and retained in an aqueous medium in a stable state.

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Patent Owner(s)

Patent OwnerAddress
MITSUBISHI PENCIL KABUSHIKI KAISHATOKYO JAPAN

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Kamagata, Tadashi Kanagawa, JP 14 50
Miyamoto, Masaru Kanagawa, JP 61 261
Miyazaki, Shigeru Kanagawa, JP 18 121
Takeuchi, Yoji Kanagawa, JP 33 241

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