Inventor · disambiguated record
Hiroko Morii
Also filed as: MORII HIROKO
75 granted patents·13 pending applications·630 citations·filing 1993–2014
99Inventor score
Top patents by PatentIndex Score
88 records- 0186US6350505B2High-density acicular hematite particles, non-magnetic undercoat layer and magnetic recording mediumTODA KOGYO CORP·Filed 2001·Granted Feb 26, 2002·16 cites·16 claims
- 0285US5686012AModified particlesTODA KOGYO CORP·Filed 1995·Granted Nov 11, 1997·51 cites·46 claims
- 0384US7022752B2Composite 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
- 0481US6130017ABlack 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
- 0580US6800684B2Composite particles, and tread rubber composition, paint and resin composition using the sameTODA KOGYO CORP·Filed 2002·Granted Oct 5, 2004·24 cites·22 claims
- 0680US6544647B1Non-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
- 0780US6416864B1Black magnetic composite particles for a black magnetic tonerTODA KOGYO CORP·Filed 2000·Granted Jul 9, 2002·16 cites·16 claims
- 0878US7767034B2Soft magnetic material, powder magnetic core and method of manufacturing soft magnetic materialSUMITOMO ELECTRIC INDUSTRIES·Filed 2005·Granted Aug 3, 2010·4 cites·4 claims
- 0978US5750250AHematite 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
- 1077US6638618B2Black composite iron oxide pigment, and paint and resin composition using the sameTODA KOGYO CORP·Filed 2001·Granted Oct 28, 2003·20 cites·12 claims
- 1177US6623557B2Colorant 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
- 1277US6596071B2Organic and inorganic composite pigments, and paint and resin composition using the sameTODA KOGYO CORP·Filed 2002·Granted Jul 22, 2003·21 cites·11 claims
- 1375US6379855B1Black magnetic toner and black magnetic composite particles thereforTODA KOGYO CORP·Filed 2000·Granted Apr 30, 2002·16 cites·33 claims
- 1474US6042937ATitanium oxide particles, substrate for magnetic recording medium and magnetic recording medium using the sameTODA KOGYO CORP·Filed 1997·Granted Mar 28, 2000·21 cites·17 claims
- 1573US6863966B1Black magnetic acicular composite particles for magnetic recording medium and magnetic recording medium using the sameTODA KOGYO CORP·Filed 2000·Granted Mar 8, 2005·9 cites·27 claims
- 1673US6440561B2Iron oxide hydroxide composite particles, pigment, paint and resin compositionTODA KOGYO CORP·Filed 2000·Granted Aug 27, 2002·11 cites·35 claims
- 1772US6511733B2Magnetic recording medium containing specific non-magnetic composite particles of coated hematite particlesTODA KOGYO CORP·Filed 2001·Granted Jan 28, 2003·9 cites·21 claims
- 1872US6420030B1Black iron-based composite particles, process for producing the same, paint and rubber or resin composition containing the sameTODA KOGYO CORP·Filed 2000·Granted Jul 16, 2002·10 cites·26 claims
- 1970US6432377B1Particles for non-magnetic undercoat layer of magnetic recording medium, method thereof and magnetic recording mediumTODA KOGYO CORP·Filed 2001·Granted Aug 13, 2002·6 cites·4 claims
- 2069US7157025B2Transparent coloring composition and color filterTODA KOGYO CORP·Filed 2004·Granted Jan 2, 2007·15 cites·12 claims
- 2169US7094814B2Coloring composition for color filter containing colorant and color filter using the sameTODA KOGYO CORP·Filed 2002·Granted Aug 22, 2006·8 cites·13 claims
- 2269US5604015ANon-magnetic undercoat layer for magnetic recording medium, magnetic recording medium and non-magnetic particlesTODA KOGYO CORP·Filed 1994·Granted Feb 18, 1997·15 cites·12 claims
- 2368US6666914B2Black colorant for ink-jet printing ink, ink-jet printing ink, and aqueous pigment dispersion containing the black colorantTODA KOGYO CORP·Filed 2002·Granted Dec 23, 2003·11 cites·17 claims
- 2467US6737211B2Color tonerTODA KOGYO CORP·Filed 2002·Granted May 18, 2004·9 cites·12 claims
- 2567US6352776B1Magnetic recording medium, non-magnetic acicular black iron-based composite particles and process for producing the particlesTODA KOGYO CORP·Filed 2000·Granted Mar 5, 2002·11 cites·38 claims
- 2666US8153256B2Soft magnetic material comprising an insulating layer containing aluminum, silicon, phosphorous and oxygen; dust magnetic core; process for producing soft magnetic material; and process for producing dust magnetic coreMAEDA TORU·Filed 2006·Granted Apr 10, 2012·1 cites·7 claims
- 2766US6248437B1Magnetic recording medium containing non-magnetic hematite particles as an undercoat layerTODA KOGYO CORP·Filed 2000·Granted Jun 19, 2001·5 cites·14 claims
- 2865US6458453B1Magnetic recording mediumTODA KOGYO CORP·Filed 2000·Granted Oct 1, 2002·10 cites·23 claims
- 2965US6287668B1Magnetic recording medium and substrate thereforTODA KOGYO CORP·Filed 2000·Granted Sep 11, 2001·10 cites·34 claims
- 3062US6475687B2Magnetic composite particles for black magnetic toner and black magnetic toner using the sameTODA KOGYO CORP·Filed 2001·Granted Nov 5, 2002·8 cites·28 claims
- 3162US6231661B1Fine red iron oxide pigment, and paint or resin composition using the sameTODA KOGYO CORP·Filed 1999·Granted May 15, 2001·15 cites·12 claims
- 3262US6117540ANon-magnetic black particles, non-magnetic black pigment therefrom and non-magnetic black filler therefromTODA KOGYO CORP·Filed 2000·Granted Sep 12, 2000·4 cites·8 claims
- 3361US6294242B1Magnetic recording mediumTODA KOGYO CORP·Filed 2000·Granted Sep 25, 2001·7 cites·39 claims
- 3460US8557330B2Manufacturing method of soft magnetic material and manufacturing method of dust coreMAEDA TORU·Filed 2012·Granted Oct 15, 2013·0 cites·6 claims
- 3559US7025905B2Black composite particles for semiconductor sealing material, and semiconductor sealing material using the sameTODA KOGYO CORP·Filed 2003·Granted Apr 11, 2006·6 cites·20 claims
- 3658US6689452B2Magnetic recording mediumTODA KOGYO CORP·Filed 2002·Granted Feb 10, 2004·3 cites·19 claims
- 3758US6531211B1Black plate-shaped ferrite composite particles with magnet oplumbite structure and magnetic recording medium using the sameTODA KOGYO CORP·Filed 2000·Granted Mar 11, 2003·3 cites·30 claims
- 3858US6139618AFine yellow composite iron oxide hydroxide pigment, and paint or resin composition using the sameTODA KOGYO CORP·Filed 1999·Granted Oct 31, 2000·12 cites·13 claims
- 3958US2009042064A1Non-magnetic particles for non-magnetic undercoat layer of magnetic recording medium, and magnetic recording mediumTODA KOGYO CORP·Filed 2008·Application pending·0 cites
- 4058US2008258118A1Colored composite microparticles, process for producing the colored composite microparticles, colorant, color filter and ink for ink-jet printingTODA KOGYO CORP·Filed 2008·Application pending·0 cites
- 4157US6767611B2Black magnetic acicular containing composite particles magnetic recording mediumTODA KOGYO CORP·Filed 2002·Granted Jul 27, 2004·6 cites·20 claims
- 4257US6251555B1Black magnetic composite particles for black magnetic toner and black magnetic toner using the sameTODA KOGYO CORP·Filed 1999·Granted Jun 26, 2001·12 cites·22 claims
- 4356US8323725B2Soft magnetic material, powder magnetic core and method of manufacturing soft magnetic materialMAEDA TORU·Filed 2010·Granted Dec 4, 2012·0 cites·2 claims
- 4456US7432314B2Functional material, dispersion containing the functional material, and process for producing the functional materialTODA KOGYO CORP·Filed 2002·Granted Oct 7, 2008·2 cites·6 claims
- 4556US2014322437A1Non-magnetic particles for non-magnetic undercoat layer of magnetic recording medium, and magnetic recording mediumTODA KOGYO CORP·Filed 2014·Application pending·0 cites
- 4656US2009007821A1Functional material, dispersion containing the functional material, and process for producing the functional materialTODA KOGYO CORP·Filed 2008·Application pending·0 cites
- 4754US6803104B2Magnetic recording medium, non-magnetic acicular black iron-based composite particles and process for producing the particlesTODA KOGYO CORP·Filed 2002·Granted Oct 12, 2004·3 cites·21 claims
- 4853US6824867B2Non-magnetic composite particles, process for producing the same and magnetic recording medium using the sameTODA KOGYO CORP·Filed 2003·Granted Nov 30, 2004·2 cites·6 claims
- 4952US6838218B2Black tonerTODA KOGYO CORP·Filed 2002·Granted Jan 4, 2005·4 cites·14 claims
- 5052US2010035087A1Process for producing ferromagnetic metal particles and magnetic recording mediumTODA KOGYO CORP·Filed 2009·Application pending·0 cites
Showing the top 50 of 88 patent records by PatentIndex Score.
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →