Inventor · disambiguated record
Masaru Kitamura
Also filed as: KITAMURA MASARU
22 granted patents·1 pending application·222 citations·filing 1987–2009
95Inventor score
Top patents by PatentIndex Score
23 records- 0186US4717770AProcess for producing epsilon-caprolactamSUMITOMO CHEMICAL CO·Filed 1987·Granted Jan 5, 1988·24 cites·9 claims
- 0284US4986989AZeolite fungicideSUMITOMO CHEMICAL CO·Filed 1988·Granted Jan 22, 1991·41 cites·4 claims
- 0383US6265574B1Process for producing ε-caprolactamSUMITOMO CHEMICAL CO·Filed 2000·Granted Jul 24, 2001·18 cites·6 claims
- 0479US4717769AProduction of epsilon-caprolactamSUMITOMO CHEMICAL CO·Filed 1987·Granted Jan 5, 1988·15 cites·10 claims
- 0576US7060645B2Method for manufacturing zeolite and method for manufacturing ε-caprolactamSUMITOMO CHEMICAL CO·Filed 2005·Granted Jun 13, 2006·3 cites·5 claims
- 0672US5502184AProcess for producing ε -caprolactamSUMITOMO CHEMICAL CO·Filed 1994·Granted Mar 26, 1996·13 cites·13 claims
- 0772US4968793AProcess for producing ε-caprolactamSUMITOMO CHEMICAL CO·Filed 1990·Granted Nov 6, 1990·13 cites·16 claims
- 0870US7026474B2Method for producing ε-caprolactam and method for reactivating catalyst for production of ε-caprolactamSUMITOMO CHEMICAL CO·Filed 2005·Granted Apr 11, 2006·2 cites·5 claims
- 0959US5403801AProcess for producing ε-caprolactam and activating solid catalysts thereforSUMITOMO CHEMICAL CO·Filed 1993·Granted Apr 4, 1995·16 cites·12 claims
- 1059US5071802ARegeneration of catalysts by burning in the presence of alcoholsSUMITOMO CHEMICAL CO·Filed 1990·Granted Dec 10, 1991·7 cites·11 claims
- 1157US5304643AProcess for producing epsilon-caprolactamSUMITOMO CHEMICAL CO·Filed 1992·Granted Apr 19, 1994·13 cites·17 claims
- 1256US5212302AProcess for producing epsilon-caprolactam and activating solid catalysts thereforSUMITOMO CHEMICAL CO·Filed 1991·Granted May 18, 1993·14 cites·17 claims
- 1355US5407881AProcess for increasing the strength of a zeolite moldingSUMITOMO CHEMICAL CO·Filed 1993·Granted Apr 18, 1995·18 cites·11 claims
- 1454US7687621B2Process for regenerating catalyst for producing e-caprolactam and process for producing e-caprolactamSUMITOMO CHEMICAL CO·Filed 2007·Granted Mar 30, 2010·0 cites·5 claims
- 1550US6258949B1Apparatus and process for producing ε-caprolactamSUMITOMO CHEMICAL CO·Filed 2000·Granted Jul 10, 2001·1 cites·4 claims
- 1649US7189845B2Method for producing ε-caprolactamSUMITOMO CHEMICAL CO·Filed 2005·Granted Mar 13, 2007·0 cites·2 claims
- 1748US7238803B2Method for producing epsilon-caprolactamSUMITOMO CHEMICAL CO·Filed 2004·Granted Jul 3, 2007·0 cites·5 claims
- 1848US2010016637A1Method for Producing OximeSUMITOMO CHEMICAL CO·Filed 2009·Application pending·0 cites
- 1946US5354859Aε-caprolactamSUMITOMO CHEMICAL CO·Filed 1992·Granted Oct 11, 1994·8 cites·18 claims
- 2046US5315039AMethod for inhibiting thermal decomposition of cycloalkanone oximesSUMITOMO CHEMICAL CO·Filed 1992·Granted May 24, 1994·3 cites·9 claims
- 2142US4779991ABottle for mixing and method for mixing with the said bottleWAKO PURE CHEM IND LTD·Filed 1987·Granted Oct 25, 1988·9 cites·4 claims
- 2238US5066630AMethod for removing nitrogen-containing organic compounds from crystalline metallosilicateSUMITOMO CHEMICAL CO·Filed 1990·Granted Nov 19, 1991·4 cites·4 claims
- 2336US7071360B2Method for evaporating cyclohexanone oximeSUMITOMO CHEMICAL CO·Filed 2002·Granted Jul 4, 2006·0 cites·5 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →