Inventor
KOZAWA MINORU
JP12 patents
Patents
12 patentsUS5874019AFeb 23, 1999
Magnetic particles for magnetic toner and process for producing the same
TODA KOGYO CORP23 citations92
US5843610ADec 1, 1998
Magnetic particles for magentic toner and process for producing the same
TODA KOGYO CORP17 citations92
US5688852ANov 18, 1997
Iron oxide particles and process for producing the same
TODA KOGYO CORP24 citations92
US5652060AJul 29, 1997
Spherical magnetic particles for magnetic toner and process for producing the same
TODA KOGYO CORP27 citations92
US5648170AJul 15, 1997
Coated granular magnetite particles and process for producing the same
TODA KOGYO CORP20 citations92
US5599627AFeb 4, 1997
Magnetic particles comprising magnetite core and process for producing the same
TODA KOGYO CORP40 citations92
US6383637B1May 7, 2002
Black magnetic iron oxide particles for magnetic toner and process for producing the same
TODA KOGYO CORP15 citations82
US5512405AApr 30, 1996
Iron oxide particles and process for producing the same
TODA KOGYO CORP15 citations82
US5470660ANov 28, 1995
Iron oxide particles and process for producing the same
TODA KOGYO CORP17 citations82
US6103437AAug 15, 2000
Magnetic toner particles comprising magnetite particles containing silicon
TODA KOGYO CORP10 citations72
US5858532AJan 12, 1999
Magnetite particles, magnetic iron oxide particles, process for the production of the same and magnetic toner using the same
TODA KOGYO CORP12 citations72
US5578375ANov 26, 1996
Granular magnetite particles and process for producing the same
TODA KOGYO CORP5 citations62