Inventor · disambiguated record
Izumi Nakagawa
Also filed as: NAKAGAWA IZUMI
3 granted patents·7 citations·filing 2009–2020
59Inventor score
Top patents by PatentIndex Score
3 records- 0181US8334411B2Process for producing diamine and polyamideITO MASATERU·Filed 2009·Granted Dec 18, 2012·5 cites·20 claims
- 0272US10683254B2Method for producing lactic acid and method for producing polylactic acidSAWAI KENJI·Filed 2009·Granted Jun 16, 2020·2 cites·7 claims
- 0366US11597694B2Method for producing lactic acid and method for producing polylactic acidTORAY INDUSTRIES·Filed 2020·Granted Mar 7, 2023·0 cites·6 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →