Inventor · disambiguated record
Toshimasa Utaka
Also filed as: UTAKA TOSHIMASA
6 granted patents·5 pending applications·25 citations·filing 1999–2020
72Inventor score
Files withIDEMITSU KOSAN CO11
Top patents by PatentIndex Score
11 records- 0170US10472583B2Lubricating oil compositionIDEMITSU KOSAN CO·Filed 2015·Granted Nov 12, 2019·1 cites·17 claims
- 0261US6238640B1Conversion method of carbon monoxide and catalystIDEMITSU KOSAN CO·Filed 1999·Granted May 29, 2001·24 cites·18 claims
- 0353US2016304802A1Lubricating oil composition for spark-ignition internal combustion engineIDEMITSU KOSAN CO·Filed 2014·Application pending·0 cites
- 0450US2021047581A1Lubricating oil compositionIDEMITSU KOSAN CO·Filed 2019·Application pending·0 cites
- 0548US12043813B2Lubricating oil compositionIDEMITSU KOSAN CO·Filed 2020·Granted Jul 23, 2024·0 cites·8 claims
- 0645US10865360B2Lubricating oil composition for engine equipped with supercharging mechanism, method for suppressing low-speed pre-ignition in engine equipped with supercharging mechanism using lubricating oil composition, and method for manufacturing lubricating oil compositionIDEMITSU KOSAN CO·Filed 2017·Granted Dec 15, 2020·0 cites·9 claims
- 0744US2008090115A1Desulfurizing Agent for Organousulfur Compound-Containing Fuel Oil, and Process for Producing Hydrogen for Fuel CellIDEMITSU KOSAN CO·Filed 2005·Application pending·0 cites
- 0843US9587200B2Lubricant composition for internal combustion engineIDEMITSU KOSAN CO·Filed 2013·Granted Mar 7, 2017·0 cites·20 claims
- 0942US2018072961A1Lubricant oil composition for spark ignition type internal combustion engine, method for producing lubricant oil composition, spark ignition type internal combustion engine using lubricant oil composition, and method for lubricating internal combustion engineIDEMITSU KOSAN CO·Filed 2016·Application pending·0 cites
- 1036US9938482B2Lubricating oil composition for internal combustion engineIDEMITSU KOSAN CO·Filed 2015·Granted Apr 10, 2018·0 cites·21 claims
- 1136US2017183601A1Lubricating oil composition for an internal combustion engineIDEMITSU KOSAN CO·Filed 2015·Application pending·0 cites
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →