Inventor
HAGA HISATO
JP6 patents
Patents
6 patentsUS11718758B2Aug 8, 2023
Aqueous dispersion of colored particles
MITSUBISHI PENCIL CO2 citations63
US12134281B2Nov 5, 2024
Writing instrument
MITSUBISHI PENCIL CO0 citations59
US12509601B2Dec 30, 2025
Aqueous ink composition for writing instruments
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US11926749B2Mar 12, 2024
Aqueous ink composition for writing instruments
MITSUBISHI PENCIL CO0 citations56
US11560489B2Jan 24, 2023
Dispersion liquid of colored resin fine particles for aqueous ink, and aqueous ink composition for writing instruments using same
MITSUBISHI PENCIL CO1 citations56
US10501649B2Dec 10, 2019
Aqueous ink composition for writing instruments
MITSUBISHI PENCIL CO0 citations46