Inventor · disambiguated record
Hiroharu Kumazawa
Also filed as: KUMAZAWA HIROHARU
7 granted patents·3 pending applications·14 citations·filing 2001–2011
77Inventor score
Top patents by PatentIndex Score
10 records- 0170US6455696B2Process for preparing 2,6-dichloropurineSUMIKA FINE CHEMICALS CO LTD·Filed 2001·Granted Sep 24, 2002·5 cites·16 claims
- 0265US6936713B2Process for producing 2,6-dihalogenopurineSUMITOMO CHEMICAL CO·Filed 2002·Granted Aug 30, 2005·7 cites·16 claims
- 0359US7592485B2Process for producing (Z)-1-phenyl-1-diethylaminocarbonyl-2-aminomethylcyclopropane hydrochlorideSUMITOMO CHEMICAL CO·Filed 2005·Granted Sep 22, 2009·1 cites·8 claims
- 0455US7943785B2Process for producing (Z)-1-phenyl-1-(N,N-diethylaminocarbonyl)-2- phthalimidomethylcyclopropaneSUMITOMO CHEMICAL CO·Filed 2007·Granted May 17, 2011·0 cites·8 claims
- 0555US7307167B2Production method of 2,6-dihalopurineSUMITOMO CHEMICAL CO·Filed 2003·Granted Dec 11, 2007·1 cites·6 claims
- 0651US7321035B2Process for producing 2,6-dihalogenopurineSUMITOMO CHEMICAL CO·Filed 2004·Granted Jan 22, 2008·0 cites·16 claims
- 0746US7432396B2Process for producing (Z)-1-phenyl-1-diethylaminocarbonyl-2-hydroxymethylcyclopropaneSUMITOMO CHEMICAL CO·Filed 2005·Granted Oct 7, 2008·0 cites·7 claims
- 0843US2011130576A1Process for producing (z)-1-phenyl-1-(n,n-diethylaminocarbonyl)-2-phthalimidomethylcyclopropaneSUMITOMO CHEMICAL CO·Filed 2011·Application pending·0 cites
- 0937US2006100429A1Alkynylpurine compounds and production methods thereofHAYASHI TAKETO·Filed 2003·Application pending·0 cites
- 1036US2008064885A1Process for Producing 2-Oxo-1-Phenyl-3-Oxabicyclo[3.1.0]HexaneSUMITOMO CHEMICAL CO·Filed 2005·Application pending·0 cites
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →