Inventor
KEMPO TSUTOMU
JP3 patents
Patents
3 patentsUS5098785AMar 24, 1992
Magnetic recording medium containing a copolymer having an anionic functional group which forms an intermolecular salt
KONISHIROKU PHOTO IND7 citations72
US5134027AJul 28, 1992
Magnetic recording medium
KONISHIROKU PHOTO IND11 citations71
US5064720ANov 12, 1991
Magnetic recording medium containing a polyurethane binder resin having a betaine group in the form of an intermolecular salt
KONISHIROKU PHOTO IND13 citations71