Inventor · disambiguated record
Masako Takeuchi
Also filed as: TAKEUCHI MASAKO
13 granted patents·1 pending application·90 citations·filing 1991–2014
91Inventor score
Top patents by PatentIndex Score
14 records- 0183US7777043B2Compound, charge transporting material and organic electroluminescent elementMITSUBISHI CHEM CORP·Filed 2006·Granted Aug 17, 2010·10 cites·14 claims
- 0282US8178215B2Organic compound containing at least two carbazolyl-substituted phenyl structures; charge-transporting material and organic el element containing the compoundYABE MASAYOSHI·Filed 2005·Granted May 15, 2012·11 cites·30 claims
- 0377US8022617B2Organic compound, charge-transporting material, composition for charge-transporting material and organic electroluminescent deviceMITSUBISHI CHEM CORP·Filed 2006·Granted Sep 20, 2011·7 cites·19 claims
- 0475US8877355B2Monoamine compound, charge-transporting material, and organic electroluminescent deviceMITSUBISHI CHEM CORP·Filed 2013·Granted Nov 4, 2014·2 cites·3 claims
- 0571US5200288AElectrostatic developing toner with hydroxyaromatic carboxylic acid additiveMITSUBISHI CHEM IND·Filed 1991·Granted Apr 6, 1993·19 cites·13 claims
- 0662US8427046B2Monoamine compound, charge-transporting material, and organic electroluminescent deviceYABE MASAYOSHI·Filed 2006·Granted Apr 23, 2013·1 cites·2 claims
- 0762US8168307B2Organic compound, charge transport material and organic electroluminescent deviceIIDA KOICHIRO·Filed 2006·Granted May 1, 2012·7 cites·15 claims
- 0858US2014361285A1Monoamine compound, charge-transporting material, and organic electroluminescent deviceMITSUBISHI CHEM CORP·Filed 2014·Application pending·0 cites
- 0950US5385799AToner for development of electrostatic imageMITSUBISHI CHEM IND·Filed 1992·Granted Jan 31, 1995·8 cites·19 claims
- 1050US5166030AElectrostatic image-developing toner containing a quaternary ammonium charge controlling agentMITSUBISHI CHEM IND·Filed 1991·Granted Nov 24, 1992·8 cites·15 claims
- 1148US5629124ACharge controlling agent for electrostatic image development, and toner and charge-imparting material employing itMITSUBISHI CHEM CORP·Filed 1996·Granted May 13, 1997·8 cites·34 claims
- 1242US5721084ACharge controlling agent for electrostatic image development, and toner and charge-imparting material employing itMITSUBISHI CHEM CORP·Filed 1996·Granted Feb 24, 1998·2 cites·13 claims
- 1339US5231173ADisazo metal chelate compounds for optical recording mediaMITSUBISHI CHEM IND·Filed 1991·Granted Jul 27, 1993·4 cites·10 claims
- 1435US5545502AElectrostatic image-developing tonerMITSUBISHI CHEM CORP·Filed 1995·Granted Aug 13, 1996·3 cites·9 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →