Yasuo Arai

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Ushiku-shi, JP

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Patents Grantslast 30 patents

Information Patent Grant
Lubricant additive composition
- Patent number 11,639,481
- Issue date May 2, 2023
- Evonik Operations GmbH
- Tsuyoshi Yuki
- C10 - PETROLEUM, GAS OR COKE INDUSTRIES TECHNICAL GASES CONTAINING CARBON MON...
Information Patent Grant
Lubricating oil composition comprising dispersant comb polymers
- Patent number 10,941,368
- Issue date Mar 9, 2021
- Evonik Operations GmbH
- Tsuyoshi Yuki
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...

Patents Applicationslast 30 patents

Information Patent Application
Lubricant additive composition
- Publication number 20230025387
- Publication date Jan 26, 2023
- Evonik Operations GmbH
- Tsuyoshi YUKI
- C10 - PETROLEUM, GAS OR COKE INDUSTRIES TECHNICAL GASES CONTAINING CARBON MON...
Information Patent Application
LUBRICATING OIL COMPOSITION COMPRISING DISPERSANT COMB POLYMERS
- Publication number 20190367836
- Publication date Dec 5, 2019
- Evonik Oil Additives GmbH
- Tsuyoshi YUKI
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...