Inventor
HORIISHI NANAO
JP34 patents
⚠️ This page may combine multiple inventors who share the name “HORIISHI NANAO”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
TODA KOGYO CORP
26 patentsUS5123989AJun 23, 1992
Resin-bonding method
TODA KOGYO CORP77 citations94
US5449565ASep 12, 1995
Magnetic iron oxide particles, a process for producing the same and a magnetic recording medium
TODA KOGYO CORP23 citations92
US5368933ANov 29, 1994
Superparamagnetic fine particles of iron oxide and magnetic recording media containing said particles
TODA KOGYO CORP27 citations92
US5112403AMay 12, 1992
Coating composition
TODA KOGYO CORP35 citations92
US4133677AJan 9, 1979
Process for producing acicular magnetic metallic particle powder
TODA KOGYO CORP44 citations91
US7670676B2Mar 2, 2010
Pharmaceutical raw material
TODA KOGYO CORP9 citations83
US4548801AOct 22, 1985
Plate-like barium ferrite particles for use in magnetic recording and process for producing the same
TODA KOGYO CORP21 citations82
US5236783AAug 17, 1993
Superparamagnetic fine particles of iron oxide and magnetic recording media containing said particles
TODA KOGYO CORP20 citations81
US4917952AApr 17, 1990
Electroconductive iron oxide particles
TODA KOGYO CORP22 citations81
US4136158AJan 23, 1979
Production of acicular magnetic iron oxides
TODA KOGYO CORP21 citations81
US4992191AFeb 12, 1991
Sphere-like magnetite particles and a process for producing the same
TODA KOGYO CORP20 citations76
US3970738AJul 20, 1976
Process for producing iron oxide products from waste liquids containing ferrous salts
TODA KOGYO CORP32 citations76
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
US5900313AMay 4, 1999
Plastic formed product containing specific particles of ferric oxide hydroxide or iron oxide
TODA KOGYO CORP7 citations72
US4828916AMay 9, 1989
Plate-like magnetoplumbite type ferrite particles for magnetic recording and magnetic recording media using the same
TODA KOGYO CORP9 citations72
US4251592AFeb 17, 1981
Stabilization treatment of acicular ferromagnetic iron or iron-alloy particles against the oxidation thereof
TODA KOGYO CORP9 citations72
US4136049AJan 23, 1979
Process for treating acicular magnetite containing co to stabilize the magnetic properties thereof
TODA KOGYO CORP16 citations72
US4033891AJul 5, 1977
Magnetic particle powder of acicular ferric oxide used for magnetic recording material and a process for producing the same
TODA KOGYO CORP12 citations72
US5143548ASep 1, 1992
Coating composition having platelike iron oxide particles
TODA KOGYO CORP4 citations62
US5994611ANov 30, 1999
Method of incinerating plastic products containing ferric oxide hydroxide particles
TODA KOGYO CORP4 citations61
US5196586AMar 23, 1993
Polydiphenyldiacetylenes
TODA KOGYO CORP2 citations61
SUMITOMO SPEC METALS
3 patentsUS4942098AJul 17, 1990
Corrosion resistant permanent magnet
SUMITOMO SPEC METALS24 citations92
US4959273ASep 25, 1990
Corrosion-resistant permanent magnet and method for preparing the same
SUMITOMO SPEC METALS22 citations78
US4968529ANov 6, 1990
Process for producing a corrosion resistant permanent magnet
SUMITOMO SPEC METALS13 citations73
AGENCY IND SCIENCE TECHN
3 patentsUS5002727AMar 26, 1991
composite magnetic compacts and their forming methods
AGENCY IND SCIENCE TECHN9 citations71
US4952331AAug 28, 1990
Composite magnetic compacts and their forming methods
AGENCY IND SCIENCE TECHN4 citations60
US4792645ADec 20, 1988
Process for producing electroconductive fibrous shaped-articles
AGENCY IND SCIENCE TECHN6 citations59