Inventor · disambiguated record
Kiyonobu Niwa
Also filed as: NIWA KIYONOBU
8 granted patents·1 pending application·18 citations·filing 1989–2012
80Inventor score
Top patents by PatentIndex Score
9 records- 0163US5068442AMethod for maintaining the activity of zeolite catalystsNITTO CHEMICAL INDUSTRY CO LTD·Filed 1989·Granted Nov 26, 1991·8 cites·6 claims
- 0257US6906215B1Powdery s,s-ethylenediamine-n,n′-disuccinic acid iron complex and process for producing the sameMITSUBISHI RAYON CO·Filed 2000·Granted Jun 14, 2005·2 cites·19 claims
- 0351US9181569B2Method for producing acrylamideKANOU MAKOTO·Filed 2012·Granted Nov 10, 2015·0 cites·13 claims
- 0451US2011171701A1Method for producing acrylamideDIA NITRIX CO LTD·Filed 2009·Application pending·0 cites
- 0549US8889907B2Process for production of amide compoundsKANOU MAKOTO·Filed 2009·Granted Nov 18, 2014·0 cites·6 claims
- 0649US5688854AProduction of methylaminesNITTO CHEMICAL INDUSTRY CO LTD·Filed 1996·Granted Nov 18, 1997·5 cites·13 claims
- 0745US6495716B2[S,S]-ethylenediamine-N,N′-disuccinic acid crystal with high bulk density and process for obtaining the sameMITSUBISHI RAYON CO·Filed 2002·Granted Dec 17, 2002·0 cites·8 claims
- 0836US6414189B1Crystals of [S,S]-ethylenediamine-N,N′-disuccinic acid with high bulk density and method of obtaining the sameMITSUBISHI RAYON CO·Filed 1998·Granted Jul 2, 2002·1 cites·13 claims
- 0929US5773659AProcess for producing dimethylamineNITTO CHEMICAL INDUSTRY CO LTD·Filed 1995·Granted Jun 30, 1998·2 cites·9 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →