Inventor · disambiguated record
Shinzo Seko
Also filed as: SEKO SHINZO
32 granted patents·4 pending applications·82 citations·filing 1993–2007
95Inventor score
Top patents by PatentIndex Score
36 records- 0181US7439357B2Process for preparing thiazole by aminomethylationSUMITOMO CHEMICAL CO·Filed 2005·Granted Oct 21, 2008·3 cites·13 claims
- 0280US8269044B2Method for selectively producing primary amine compoundTAKANO NAOYUKI·Filed 2006·Granted Sep 18, 2012·4 cites·5 claims
- 0379US7977490B2Process for producing thiazole compoundSUMITOMO CHEMICAL CO·Filed 2006·Granted Jul 12, 2011·2 cites·8 claims
- 0476US6297402B1Ketosulfone derivatives and process for producing the sameSUMITOMO CHEMICAL CO·Filed 2000·Granted Oct 2, 2001·6 cites·8 claims
- 0576US6288283B1Process for producing retinal and intermediates for producing the sameSUMITOMO CHEMICAL CO·Filed 2000·Granted Sep 11, 2001·7 cites·18 claims
- 0672US6660888B2Process for producing retinol and intermediate compounds for producing the sameSUMITOMO CHEMICAL CO·Filed 2001·Granted Dec 9, 2003·3 cites·30 claims
- 0771US6388124B2Dihalo-compound and process for producing vitamin A derivativeSUMITOMO CHEMICAL CO·Filed 2001·Granted May 14, 2002·3 cites·21 claims
- 0870US6355841B1Process for producing β-caroteneSUMITOMO CHEMICAL CO·Filed 2000·Granted Mar 12, 2002·5 cites·8 claims
- 0965US6211411B1Process for producing retinal and intermediate for producing the sameSUMITOMO CHEMICAL CO·Filed 1999·Granted Apr 3, 2001·8 cites·22 claims
- 1064US6348622B1Vitamin a related compounds and process for producing the sameSUMITOMO CHEMICAL CO·Filed 2000·Granted Feb 19, 2002·3 cites·33 claims
- 1164US6331652B1Process for producing lycopene and intermediate thereofSUMITOMO CHEMICAL CO·Filed 2000·Granted Dec 18, 2001·6 cites·20 claims
- 1259US6444857B1Process for producing vitamin A aldehyde and intermediate for producing the sameSUMITOMO CHEMICAL CO·Filed 2000·Granted Sep 3, 2002·2 cites·9 claims
- 1359US6172265B1Ketosufone derivatives and process for producing the sameSUMITOMO CHEMICAL CO·Filed 1999·Granted Jan 9, 2001·5 cites·8 claims
- 1459US5880291AProcess for producing optically active azetidine-2-carboxylic acidSUMITOMO CHEMICAL CO·Filed 1997·Granted Mar 9, 1999·6 cites·12 claims
- 1558US5756769AMethod for producing propargylamine compoundsSUMITOMO CHEMICAL CO·Filed 1997·Granted May 26, 1998·6 cites·8 claims
- 1654US5466871AProcess for preparing nitroaniline derivativesSUMITOMO CHEMICAL CO·Filed 1994·Granted Nov 14, 1995·5 cites·19 claims
- 1750US5902905AMethod for producing arylvinylsulfoneSUMITOMO CHEMICAL CO·Filed 1997·Granted May 11, 1999·4 cites·19 claims
- 1849US8304558B2Method for producing thiazole compoundTAKANO NAOYUKI·Filed 2007·Granted Nov 6, 2012·0 cites·5 claims
- 1948US7745669B2Process for production of alcohol compoundSUMITOMO CHEMICAL CO·Filed 2007·Granted Jun 29, 2010·0 cites·18 claims
- 2048US7652177B2Process for production of alcohol compoundSUMITOMO CHEMICAL CO·Filed 2007·Granted Jan 26, 2010·0 cites·18 claims
- 2148US6784321B2Process for producing retinol and intermediate compounds for producing the sameSUMITOMO CHEMICAL CO·Filed 2003·Granted Aug 31, 2004·0 cites·4 claims
- 2247US6806387B2Process for preparation of allyl sulfone derivatives and intermediates for the preparationSUMITOMO CHEMICAL CO·Filed 2002·Granted Oct 19, 2004·0 cites·23 claims
- 2345US7652170B2Method for producing primary amine compoundSUMITOMO CHEMICAL CO·Filed 2006·Granted Jan 26, 2010·0 cites·9 claims
- 2444US5969149AProcess for producing hexahydrothieno[3,4-D]imidazole-2,4-dionesSUMITOMO CHEMICAL CO·Filed 1998·Granted Oct 19, 1999·2 cites·8 claims
- 2542US6552219B1Process for the preparation of vitamin a, intermediates, and process for the preparation of the intermediatesSUMITOMO CHEMICAL CO·Filed 2000·Granted Apr 22, 2003·0 cites·12 claims
- 2639US2004034257A1Novel sulfone derivatives and process for producing theseFiled 2002·Application pending·0 cites
- 2738US6160181ATetraene derivative and process for producing the sameSUMITOMO CHEMICAL CO·Filed 1999·Granted Dec 12, 2000·1 cites·16 claims
- 2838US2004204612A1Process for preparation of carotenoidsFiled 2003·Application pending·0 cites
- 2937US6037509AProcess for producing 1-bromo-4-phenylbutaneSUMITOMO CHEMICAL CO·Filed 1999·Granted Mar 14, 2000·1 cites·5 claims
- 3036US2002107422A1Process for producing allyl halide compoundFiled 2002·Application pending·0 cites
- 3134US6114543AProcess for producing optically active azetidine-2-carboxylic acidSUMITOMO CHEMICAL CO·Filed 1998·Granted Sep 5, 2000·0 cites·16 claims
- 3234US5412106AProcess for production of 2-thiophene aldehydesSUMITOMO CHEMICAL CO·Filed 1993·Granted May 2, 1995·0 cites·3 claims
- 3333US5639895AProcess for producing β-nitroenamineSUMITOMO CHEMICAL CO·Filed 1996·Granted Jun 17, 1997·0 cites·5 claims
- 3433US5597940AProcess for producing β-nitroenamineSUMITOMO CHEMICAL CO·Filed 1995·Granted Jan 28, 1997·0 cites·14 claims
- 3532US2009018364A1Method for nitrating isoureaYAMAGATA KAZUYUKI·Filed 2007·Application pending·0 cites
- 3628US5648496AProcess for producing aminonitropyridinesSUMITOMO CHEMICAL CO·Filed 1996·Granted Jul 15, 1997·0 cites·15 claims
Join the waitlist — get patent alerts
Get an alert when Shinzo Seko files or is granted a new patent.
We store only your email — no account needed. See our privacy policy.
Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →