Inventor
YAMAMOTO KATSUNOBU
JP5 patents
Patents
5 patentsUS4266328AMay 12, 1981
Developing roll for use in electrostatic developing apparatus employing magnetic particles
HITACHI METALS LTD9 citations73
US4169998AOct 2, 1979
Iron core assembly for magnetizing columnar permanent magnets for use in electrostatic developing apparatus
HITACHI METALS LTD18 citations73
US4168481ASep 18, 1979
Core assembly for magnetizing columnar permanent magnet for use in an electrostatic developing apparatus
HITACHI METALS LTD12 citations73
US4167718ASep 11, 1979
Dies set for magnetizing outer surface of magnetic column
HITACHI METALS LTD8 citations73
US4166263AAug 28, 1979
Magnetic core assembly for magnetizing columnar permanent magnet for use in electrostatic developing apparatus
HITACHI METALS LTD16 citations73