Inventor · disambiguated record
Hirofumi Ii
Also filed as: II HIROFUMI
10 granted patents·2 pending applications·26 citations·filing 1996–2018
85Inventor score
Top patents by PatentIndex Score
12 records- 0181US9656942B2Method of manufacturing diethyl carbonateUBE INDUSTRIES·Filed 2013·Granted May 23, 2017·4 cites·17 claims
- 0274US7714160B2Process for producing alkyl nitriteUBE INDUSTRIES·Filed 2004·Granted May 11, 2010·6 cites·6 claims
- 0371US9174918B2Process for preparing diaryl oxalateTANAKA SHUJI·Filed 2011·Granted Nov 3, 2015·1 cites·15 claims
- 0469US10351507B2Carbonate ester purification method, carbonate ester solution production method, and carbonate ester purification apparatusUBE INDUSTRIES·Filed 2015·Granted Jul 16, 2019·1 cites·7 claims
- 0567US6472498B2Diaryl carbonate product and production of polycarbonateUBE INDUSTRIES·Filed 2001·Granted Oct 29, 2002·4 cites·20 claims
- 0663US8304585B2Production process of 1,6-hexanediolII HIROFUMI·Filed 2007·Granted Nov 6, 2012·2 cites·6 claims
- 0759US5731453AProcess for producing a diaryl carbonateUBE INDUSTRIES·Filed 1997·Granted Mar 24, 1998·6 cites·30 claims
- 0848US6844464B2Process for producing alkyl nitriteUBE INDUSTRIES·Filed 2003·Granted Jan 18, 2005·0 cites·8 claims
- 0941US5705677ADiphenyl oxalate-phenol adduct, process for producing the adduct and method of producing diphenyl oxalate from the adductUBE INDUSTRIES·Filed 1996·Granted Jan 6, 1998·2 cites·7 claims
- 1040US2020048184A1Method and apparatus for producing alkyl nitriteUBE INDUSTRIES·Filed 2018·Application pending·0 cites
- 1140US2010137625A1Process for preparing 1,5-pentanediol and/or 1,6-hexanediolII HIROFUMI·Filed 2008·Application pending·0 cites
- 1230US5892089AProcess for preparing diaryl carbonateUBE INDUSTRIES·Filed 1997·Granted Apr 6, 1999·0 cites·11 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →