Inventor
YAMASHITA KATSUMI
JP15 patents
⚠️ This page may combine multiple inventors who share the name “YAMASHITA KATSUMI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
TODA KOGYO CORP
6 patentsUS5531922AJul 2, 1996
Granulated particles for magnetic particles for magnetic recording, and process for producing the same
TODA KOGYO CORP33 citations90
US5626962AMay 6, 1997
Co-coated acicular magnetite particles and process for producing the same
TODA KOGYO CORP9 citations73
US5968405AOct 19, 1999
Cobalt-coated acicular magnetic iron oxide particles
TODA KOGYO CORP8 citations71
US5399278AMar 21, 1995
Process for producing acicular goethite particles and acicular magnetic iron oxide particles
TODA KOGYO CORP10 citations71
US5294492AMar 15, 1994
Acicular magnetic iron oxide particles
TODA KOGYO CORP8 citations68
US5650194AJul 22, 1997
Process for producing co-coated acicular magnetite particles
TODA KOGYO CORP2 citations62