Inventor · disambiguated record
Yasuki Ohtawa
Also filed as: OHTAWA YASUKI
16 granted patents·3 pending applications·253 citations·filing 1991–2008
93Inventor score
Top patents by PatentIndex Score
19 records- 0196US5476597ALiquid softener composition, novel quaternary ammonium salt, and process for the preparation of said saltKAO CORP·Filed 1994·Granted Dec 19, 1995·83 cites·13 claims
- 0292US5580481AAqueous fabric softener composition, novel quaternary ammonium salt, and process for the preparation of said saltKAO CORP·Filed 1995·Granted Dec 3, 1996·77 cites·16 claims
- 0377US5851982ALiquid softener compositions and quaternary ammonium saltKAO CORP·Filed 1995·Granted Dec 22, 1998·36 cites·35 claims
- 0472US5563111AAgricultural chemical composition comprising amine surfactants with at least one ester or amide linkageKAO CORP·Filed 1994·Granted Oct 8, 1996·19 cites·37 claims
- 0570US7115779B2Softener compositionKAO CORP·Filed 2004·Granted Oct 3, 2006·4 cites·3 claims
- 0665US7214718B1Quaternary ammonium salt compositionKAO CORP·Filed 2000·Granted May 8, 2007·6 cites·10 claims
- 0761US6855682B2Softener compositionKAO CORP·Filed 2002·Granted Feb 15, 2005·2 cites·8 claims
- 0854US2011077434A1Process for producing polyoxyalkylene alkyl ethersKAO CORP·Filed 2008·Application pending·0 cites
- 0952US7179783B2Sulfuric acid amine salt, sulfonic acid amine salt, production thereof and softener compositionKAO CORP·Filed 2006·Granted Feb 20, 2007·0 cites·7 claims
- 1051US2007111923A1Sulfuric acid amine salt, sulfonic acid amine salt, production thereof and softener compositionKONO JUN·Filed 2007·Application pending·0 cites
- 1148US5318727AMild cationic surfactants having good foaming conditioning properties and cleaning compositionsKAO CORP·Filed 1991·Granted Jun 7, 1994·13 cites·13 claims
- 1243US7351685B2Softener compositionKAO CORP·Filed 2003·Granted Apr 1, 2008·0 cites·18 claims
- 1341US8138136B2Process for production of alkylene oxide adductsOHTAWA YASUKI·Filed 2007·Granted Mar 20, 2012·0 cites·19 claims
- 1441US2004023831A1Sulfuric acid amine salt, sulfonic acid amine salt, production thereof and softener compositionFiled 2003·Application pending·0 cites
- 1539US8227160B2Toner for electrophotographyHIDAKA YASUHIRO·Filed 2007·Granted Jul 24, 2012·0 cites·10 claims
- 1635US6541444B1Softener compositionKAO CORP·Filed 1999·Granted Apr 1, 2003·4 cites·14 claims
- 1733US6410502B1Softener compositionsKAO CORP·Filed 1999·Granted Jun 25, 2002·4 cites·9 claims
- 1832US6624137B1Softening finish compositionKAO CORP·Filed 1999·Granted Sep 23, 2003·3 cites·2 claims
- 1930US6521588B1Softener compositionKAO CORP·Filed 1999·Granted Feb 18, 2003·2 cites·17 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →