Inventor
OGIWARA YASUAKI
JP6 patents
Patents
6 patentsUS5965634AOct 12, 1999
Water base ink composition
MITSUBISHI PENCIL CO51 citations93
US5942560AAug 24, 1999
Colored resin fine particle water base dispersion liquid for water base ink
MITSUBISHI PENCIL CO40 citations90
US7405865B2Jul 29, 2008
Liquid for electrophoretic display, display medium and display device using the same
MITSUBISHI PENCIL CO17 citations83
US5621021AApr 15, 1997
Erasable writing ink composition
MITSUBISHI PENCIL CO15 citations71
US11427027B2Aug 30, 2022
Writing implement
MITSUBISHI PENCIL CO2 citations70
US5959000ASep 28, 1999
Erasable ink
MITSUBISHI PENCIL CO3 citations60