Assignee
TODA KOGYO CORP
JP·323 granted patents·64 pending applications·3,306 citations·filing 1974–2025
Top patents by PatentIndex Score
387 records- 0195US6099957APlate-like ferrite particles with magnetoplumbite structure and magnetic card using the sameTODA KOGYO CORP·Filed 1999·Granted Aug 8, 2000·110 cites·13 claims
- 0294US9698420B2Li-Ni composite oxide particles and process for producing the same, and non-aqueous electrolyte secondary batteryTODA KOGYO CORP·Filed 2013·Granted Jul 4, 2017·16 cites·7 claims
- 0394US5336421ASpinel-type spherical, black iron oxide particles and process for the producing the sameTODA KOGYO CORP·Filed 1993·Granted Aug 9, 1994·58 cites·3 claims
- 0493US11823823B2Ferrite particles for bonded magnets, resin composition for bonded magnets, and molded product using the sameTODA KOGYO CORP·Filed 2022·Granted Nov 21, 2023·2 cites·4 claims
- 0592US8883118B2Hydrocarbon-decomposing porous catalyst body and process for producing the same, process for producing hydrogen-containing mixed reformed gas from hydrocarbons, and fuel cell systemTODA KOGYO CORP·Filed 2013·Granted Nov 11, 2014·7 cites·7 claims
- 0692US6436520B1Magnetic display deviceTODA KOGYO CORP·Filed 2000·Granted Aug 20, 2002·66 cites·17 claims
- 0792US6304162B1Anisotropic permanent magnetTODA KOGYO CORP·Filed 2000·Granted Oct 16, 2001·47 cites·10 claims
- 0889US10497498B2Ferrite particles for bonded magnets, resin composition for bonded magnets, and molded product using the sameTODA KOGYO CORP·Filed 2015·Granted Dec 3, 2019·4 cites·5 claims
- 0989US5123989AResin-bonding methodTODA KOGYO CORP·Filed 1990·Granted Jun 23, 1992·77 cites·6 claims
- 1088US7220366B2Process for purifying contaminated soil or groundwater with iron particlesTODA KOGYO CORP·Filed 2006·Granted May 22, 2007·10 cites·28 claims
- 1188US7022256B2Iron particles for purifying contaminated soil or ground waterTODA KOGYO CORP·Filed 2002·Granted Apr 4, 2006·25 cites·14 claims
- 1287US8486368B2Hydrocarbon-decomposing porous catalyst body and process for producing the same, process for producing hydrogen-containing mixed reformed gas from hydrocarbons, and fuel cell systemTODA KOGYO CORP·Filed 2012·Granted Jul 16, 2013·4 cites·5 claims
- 1387US4133677AProcess for producing acicular magnetic metallic particle powderTODA KOGYO CORP·Filed 1977·Granted Jan 9, 1979·44 cites·7 claims
- 1486US9218559B2Composite RF tag, and tool mounted with the composite RF tagTODA KOGYO CORP·Filed 2014·Granted Dec 22, 2015·7 cites·3 claims
- 1586US6350505B2High-density acicular hematite particles, non-magnetic undercoat layer and magnetic recording mediumTODA KOGYO CORP·Filed 2001·Granted Feb 26, 2002·16 cites·16 claims
- 1685US6677105B2Self-lubricating layer for data storage devicesTODA KOGYO CORP·Filed 2001·Granted Jan 13, 2004·24 cites·21 claims
- 1785US5686012AModified particlesTODA KOGYO CORP·Filed 1995·Granted Nov 11, 1997·51 cites·46 claims
- 1884US12246475B2Ferrite particles for bonded magnets, resin composition for bonded magnets, and molded product using the sameTODA KOGYO CORP·Filed 2023·Granted Mar 11, 2025·0 cites·16 claims
- 1984US7022752B2Composite particles, process for producing the same, and pigment, paint and resin composition using the sameTODA KOGYO CORP·Filed 2001·Granted Apr 4, 2006·28 cites·58 claims
- 2084US6428766B1Manganese oxide, lithium manganese complex oxide and cobalt-coated lithium manganese complex oxide, and preparation processes thereofTODA KOGYO CORP·Filed 1999·Granted Aug 6, 2002·61 cites·4 claims
- 2184US6337132B1Layered rock salt-type oxide particle powder and process for producing the sameTODA KOGYO CORP·Filed 2000·Granted Jan 8, 2002·24 cites·8 claims
- 2284US5599627AMagnetic particles comprising magnetite core and process for producing the sameTODA KOGYO CORP·Filed 1994·Granted Feb 4, 1997·40 cites·9 claims
- 2384US5112403ACoating compositionTODA KOGYO CORP·Filed 1991·Granted May 12, 1992·35 cites·11 claims
- 2483US7910214B2Molded ferrite sheet, sintered ferrite substrate and antenna moduleTODA KOGYO CORP·Filed 2008·Granted Mar 22, 2011·9 cites·6 claims
- 2583US7112291B2Cobalt oxide particles and process for producing the same, cathode active material for non-aqueous electrolyte secondary cell and process for producing the same, and non-aqueous electrolyte secondary cellTODA KOGYO CORP·Filed 2005·Granted Sep 26, 2006·4 cites·2 claims
- 2683US6780555B2Black magnetic iron oxide particles and magnetic tonerTODA KOGYO CORP·Filed 2002·Granted Aug 24, 2004·27 cites·16 claims
- 2783US3970738AProcess for producing iron oxide products from waste liquids containing ferrous saltsTODA KOGYO CORP·Filed 1974·Granted Jul 20, 1976·32 cites·12 claims
- 2882US6676365B2Air track conveyor system for disk productionTODA KOGYO CORP·Filed 2001·Granted Jan 13, 2004·32 cites·24 claims
- 2981US7670676B2Pharmaceutical raw materialTODA KOGYO CORP·Filed 2006·Granted Mar 2, 2010·9 cites·9 claims
- 3081US6413639B1Mg-Al based hydrotalcite-type particles, chlorine-containing resin stabilizer and process for producing the particlesTODA KOGYO CORP·Filed 2000·Granted Jul 2, 2002·28 cites·11 claims
- 3181US6130017ABlack non-magnetic composite particles for black toner and black toner using the sameTODA KOGYO CORP·Filed 1999·Granted Oct 10, 2000·30 cites·23 claims
- 3281US4548801APlate-like barium ferrite particles for use in magnetic recording and process for producing the sameTODA KOGYO CORP·Filed 1984·Granted Oct 22, 1985·21 cites·11 claims
- 3380US8821766B2Lithium manganate for non-aqueous electrolyte secondary battery, process for producing the same, and non-aqueous electrolyte secondary batteryTODA KOGYO CORP·Filed 2013·Granted Sep 2, 2014·2 cites·12 claims
- 3480US7405359B2Mg-Al-based hydrotalcite-type particles, chlorine-containing resin composition and process for producing the particlesTODA KOGYO CORP·Filed 2005·Granted Jul 29, 2008·2 cites·4 claims
- 3580US6800684B2Composite particles, and tread rubber composition, paint and resin composition using the sameTODA KOGYO CORP·Filed 2002·Granted Oct 5, 2004·24 cites·22 claims
- 3680US6544647B1Non-magnetic composite particles, process for producing the same and magnetic recording medium using the sameTODA KOGYO CORP·Filed 2000·Granted Apr 8, 2003·21 cites·13 claims
- 3780US6416864B1Black magnetic composite particles for a black magnetic tonerTODA KOGYO CORP·Filed 2000·Granted Jul 9, 2002·16 cites·16 claims
- 3880US4136158AProduction of acicular magnetic iron oxidesTODA KOGYO CORP·Filed 1977·Granted Jan 23, 1979·21 cites·17 claims
- 3979US10615414B2Lithium nickelate-based positive electrode active substance particles and process for producing the same, and non-aqueous electrolyte secondary batteryTODA KOGYO CORP·Filed 2016·Granted Apr 7, 2020·1 cites·6 claims
- 4079US6616747B2Process for producing granular hematite particlesTODA KOGYO CORP·Filed 2002·Granted Sep 9, 2003·24 cites·8 claims
- 4179US5075169APlate-like composite ferrite particles for magnetic recording and process for producing the sameTODA KOGYO CORP·Filed 1989·Granted Dec 24, 1991·24 cites·6 claims
- 4278US7144626B2Magnetic iron oxide particles and magnetic toner using the sameTODA KOGYO CORP·Filed 2005·Granted Dec 5, 2006·9 cites·5 claims
- 4378US6398863B1Spindle-shaped hematite particles and process for making spindle-shaped hematite particlesTODA KOGYO CORP·Filed 2001·Granted Jun 4, 2002·11 cites·8 claims
- 4478US5750250AHematite particles and magnetic recording medium having a non-magnetic under-coat layer containing hematite (Fe2 O3) particles.TODA KOGYO CORP·Filed 1996·Granted May 12, 1998·29 cites·20 claims
- 4578US4225352AAnti-corrosive pigment and anti-corrosive aqueous paintTODA KOGYO CORP·Filed 1978·Granted Sep 30, 1980·24 cites·6 claims
- 4677US10326133B2Methods of making inorganic compoundsTODA KOGYO CORP·Filed 2016·Granted Jun 18, 2019·1 cites·15 claims
- 4777US9691528B2Ferrite particles for bonded magnets, resin composition for bonded magnets, and molded product using the sameTODA KOGYO CORP·Filed 2013·Granted Jun 27, 2017·4 cites·5 claims
- 4877US9127168B2Magnetic iron oxide fine particles, and magnetic particle-containing water dispersion and process for producing the sameTODA KOGYO CORP·Filed 2015·Granted Sep 8, 2015·1 cites·3 claims
- 4977US6638618B2Black composite iron oxide pigment, and paint and resin composition using the sameTODA KOGYO CORP·Filed 2001·Granted Oct 28, 2003·20 cites·12 claims
- 5077US6623557B2Colorant for ink-jet printing ink, ink-jet printing ink, aqueous pigment dispersion containing the colorant, and organic and inorganic composite particlesTODA KOGYO CORP·Filed 2002·Granted Sep 23, 2003·19 cites·22 claims
Showing the top 50 of 387 patent records by PatentIndex Score.
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