Inventor
MAEKAWA MASAAKI
JP12 patents
⚠️ This page may combine multiple inventors who share the name “MAEKAWA MASAAKI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
TODA KOGYO CORP
11 patentsUS5604015AFeb 18, 1997
Non-magnetic undercoat layer for magnetic recording medium, magnetic recording medium and non-magnetic particles
TODA KOGYO CORP15 citations81
US6753084B2Jun 22, 2004
Spindle-shaped magnetic alloy particles for magnetic recording, and magnetic recording medium
TODA KOGYO CORP7 citations73
US6398863B1Jun 4, 2002
Spindle-shaped hematite particles and process for making spindle-shaped hematite particles
TODA KOGYO CORP11 citations73
US6309479B1Oct 30, 2001
Spindle-shaped goethite particles, spindle-shaped hematite particles and magnetic spindle-shaped metal particles containing iron as main component
TODA KOGYO CORP6 citations73
US5830557ANov 3, 1998
Non-magnetic undercoating layer for magnetic recording medium, magnetic recording medium and non-magnetic particles
TODA KOGYO CORP5 citations73
US5118575AJun 2, 1992
Plate-like composite ferrite fine particles for magnetic recording and a process for producing the same
TODA KOGYO CORP12 citations73
US6821618B2Nov 23, 2004
Magnetic recording medium and process for producing the same
TODA KOGYO CORP8 citations72
US7172642B2Feb 6, 2007
Magnetic metal particles containing iron as main component, process for producing the same and magnetic recording medium using the same
TODA KOGYO CORP2 citations62
US5079092AJan 7, 1992
Plate-like composite ferrite fine particles suitable for use in magnetic recording and process for producing the same
TODA KOGYO CORP4 citations62
US6916530B2Jul 12, 2005
Perpendicular magnetic recording medium
TODA KOGYO CORP3 citations61
US5882795AMar 16, 1999
Non-magnetic coated particles having a defined parameter α of not less than 0.5
TODA KOGYO CORP0 citations51