Inventor · disambiguated record
Tsuyoshi Takehana
Also filed as: TAKEHANA TSUYOSHI
6 granted patents·3 citations·filing 2009–2020
67Inventor score
Technology areasC08G
Top patents by PatentIndex Score
6 records- 0173US8569444B2Polyalkylene glycol derivative and process for producing sameNAKAMOTO KEN-ICHIRO·Filed 2009·Granted Oct 29, 2013·3 cites·16 claims
- 0255US12018120B2Method for producing terminal carboxyl group-containing polyethylene glycol and method for producing activated polyethylene glycolNOF CORP·Filed 2020·Granted Jun 25, 2024·0 cites·2 claims
- 0350US10407543B2Method for producing polyethylene glycol having terminal carboxyl groupNOF CORP·Filed 2016·Granted Sep 10, 2019·0 cites·2 claims
- 0445US8993687B2Method for production of biodegradable polyoxyethylene derivativeNOF CORP·Filed 2014·Granted Mar 31, 2015·0 cites·4 claims
- 0539US8816099B2Polyfunctional polyoxyalkylene compound, and producing method and intermediate thereofNAKAMOTO KEN-ICHIRO·Filed 2010·Granted Aug 26, 2014·0 cites·2 claims
- 0636US8716435B2Multibranched polyoxyalkylene compound and producing method thereofTAKEHANA TSUYOSHI·Filed 2010·Granted May 6, 2014·0 cites·14 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →