Inventor
NAGAI NORIMICHI
JP18 patents
Patents
18 patentsUS5075169ADec 24, 1991
Plate-like composite ferrite particles for magnetic recording and process for producing the same
TODA KOGYO CORP24 citations92
US5156922AOct 20, 1992
Acicular magnetic iron based alloy particles for magnetic recording and method of producing the same
TODA KOGYO CORP25 citations91
US4548801AOct 22, 1985
Plate-like barium ferrite particles for use in magnetic recording and process for producing the same
TODA KOGYO CORP21 citations82
US4698182AOct 6, 1987
Hexagonal plate-like barium ferrite particles for magnetic recording and process for producing the same
TODA KOGYO CORP9 citations73
US4585568AApr 29, 1986
Plate-like barium ferrite particles for magnetic recording and process for producing the same
TODA KOGYO CORP11 citations73
US4584242AApr 22, 1986
Plate-like barium ferrite particles for magnetic recording and process for producing the same
TODA KOGYO CORP16 citations73
US4561988ADec 31, 1985
Process for production of plate-like barium ferrite particles for magnetic recording
TODA KOGYO CORP9 citations73
US4539129ASep 3, 1985
Barium ferrite particles and process for producing said particles
TODA KOGYO CORP11 citations73
US4529524AJul 16, 1985
Process for producing plate-like barium ferrite particles for magnetic recording
TODA KOGYO CORP12 citations73
US5599378AFeb 4, 1997
Spindle-shaped magnetic iron based alloy particles and process for producing the same
TODA KOGYO CORP6 citations72
US5466306ANov 14, 1995
Spindle-shaped magnetic iron based alloy particles
TODA KOGYO CORP11 citations72
US4851292AJul 25, 1989
Plate-like barium ferrite particles suitable for use in magnetic recording and process for producing the same
TODA KOGYO CORP8 citations72
US4806429AFeb 21, 1989
Plate-like barium ferrite particles suitable for use in magnetic recording and process for producing the same
TODA KOGYO CORP5 citations72
US4781981ANov 1, 1988
Plate-like magnetoplumbite ferrite particles for magnetic recording and process for producing the same
TODA KOGYO CORP9 citations72
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
US4752407AJun 21, 1988
Process for producing plate-like barium ferrite particles
TODA KOGYO CORP3 citations62
US5238483AAug 24, 1993
Acicular magnetic iron based alloy particles for magnetic recording and method of producing the same
TODA KOGYO CORP2 citations61
US10570016B2Feb 25, 2020
Carbon nanotube and process for producing the carbon nanotube, and lithium ion secondary battery using the carbon nanotube
TODA KOGYO CORP1 citations58