Inventor · disambiguated record
Kazuhiko Amakawa
Also filed as: AMAKAWA KAZUHIKO
17 granted patents·6 pending applications·58 citations·filing 2001–2021
91Inventor score
Top patents by PatentIndex Score
23 records- 0194US9695099B2Process for preparing acrylic acidBASF SE·Filed 2015·Granted Jul 4, 2017·10 cites·15 claims
- 0291US10682631B2Multimetal oxide compositions comprising Mo, Bi, Fe and CuBASF SE·Filed 2019·Granted Jun 16, 2020·4 cites·15 claims
- 0391US9540305B2Process for preparing acrylic acid using an alkali metal-free and alkaline earth metal-free zeolitic materialBASF SE·Filed 2015·Granted Jan 10, 2017·5 cites·15 claims
- 0491US9446390B2Process for preparing acrylic acid using an aluminum-free zeolitic materialBASF SE·Filed 2015·Granted Sep 20, 2016·6 cites·18 claims
- 0576US7767859B2Production method of primary amines and catalysts for producing primary aminesMITSUBISHI GAS CHEMICAL CO·Filed 2007·Granted Aug 3, 2010·2 cites·26 claims
- 0675US6646163B2Method for producing high purity xylylenediamineMITSUBISHI GAS CHEMICAL CO·Filed 2002·Granted Nov 11, 2003·8 cites·6 claims
- 0773US6476269B2Method for producing xylylenediamineMITSUBISHI GAS CHEMICAL CO·Filed 2001·Granted Nov 5, 2002·7 cites·9 claims
- 0872US8119556B2Production method of primary amines and catalysts for producing primary aminesAMAKAWA KAZUHIKO·Filed 2010·Granted Feb 21, 2012·2 cites·11 claims
- 0972US6881864B2Production method of xylylenediamineMITSUBISHI GAS CHEMICAL CO·Filed 2004·Granted Apr 19, 2005·8 cites·14 claims
- 1069US7785556B2Method of recovering ammoniaMITSUBISHI GAS CHEMICAL CO·Filed 2007·Granted Aug 31, 2010·1 cites·14 claims
- 1166US7915452B2Process for producing highly purified xyltlenediamineMITSUBISHI GAS CHEMICAL CO·Filed 2005·Granted Mar 29, 2011·1 cites·4 claims
- 1260US7588721B2Method for storing xylylenediamineMITSUBISHI GAS CHEMICAL CO·Filed 2007·Granted Sep 15, 2009·0 cites·8 claims
- 1359US6894192B2Process for production of xylylenediamineMITSUBISHI GAS CHEMICAL CO·Filed 2003·Granted May 17, 2005·2 cites·14 claims
- 1453US7119230B2Process for production of xylylenediamine and/or cyanobenzylamineMITSUBISHI GAS CHEMICAL CO·Filed 2003·Granted Oct 10, 2006·1 cites·10 claims
- 1551US6509490B2Method of purifying isophthalonitrileMITSUBISHI GAS CHEMICAL CO·Filed 2001·Granted Jan 21, 2003·1 cites·5 claims
- 1651US2022259131A1A process for the continuous production of either acrolein or acrylic acid as the target product from propeneBASF SE·Filed 2020·Application pending·0 cites
- 1750US2024293802A1High purity tableted alpha-alumina catalyst supportBASF SE·Filed 2021·Application pending·0 cites
- 1850US2024091756A1Method for producing a core-shell catalystBASF SE·Filed 2021·Application pending·0 cites
- 1948US2023234030A1Tableted alpha-alumina catalyst supportBASF SE·Filed 2021·Application pending·0 cites
- 2047US2005100694A1Solid xylylenediamine in container, production method thereof, and method for storing xylylenediamineFiled 2004·Application pending·0 cites
- 2145US12343708B2Method for producing a catalytically active multi-element oxide containing the elements Mo, W, V and CuBASF SE·Filed 2021·Granted Jul 1, 2025·0 cites·15 claims
- 2239US6984758B2Purification of 1,3-bis(aminomethyl)cyclohexane by distillationMITSUBISHI GAS CHEMICAL CO·Filed 2005·Granted Jan 10, 2006·0 cites·6 claims
- 2335US2018147561A1Method for producing catalysts containing chrome, for the oxidative dehydrogenation of n-butenes to form butadiene while avoiding cr(vi) intermediatesBASF SE·Filed 2016·Application pending·0 cites
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →