Kenyuu YOSHIDA

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Kyoto, JP

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Patents Grantslast 30 patents

Information Patent Grant
Viscosity index improver composition and lubricating oil composition
- Patent number 12,168,756
- Issue date Dec 17, 2024
- Sanyo Chemical Industries, Ltd.
- Nobuhiro Naito
- C10 - PETROLEUM, GAS OR COKE INDUSTRIES TECHNICAL GASES CONTAINING CARBON MON...
Information Patent Grant
Viscosity index improver, lubricant composition, and method for man...
- Patent number 10,336,961
- Issue date Jul 2, 2019
- Sanyo Chemical Industries, Ltd.
- Shigekuni Nakada
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...

Patents Applicationslast 30 patents

Information Patent Application
VISCOSITY INDEX IMPROVER COMPOSITION AND LUBRICATING OIL COMPOSITION
- Publication number 20230340357
- Publication date Oct 26, 2023
- SANYO CHEMICAL INDUSTRIES, LTD.
- Nobuhiro NAITO
- C10 - PETROLEUM, GAS OR COKE INDUSTRIES TECHNICAL GASES CONTAINING CARBON MON...
Information Patent Application
VISCOSITY INDEX IMPROVER AND LUBRICATING OIL COMPOSITION
- Publication number 20230323241
- Publication date Oct 12, 2023
- SANYO CHEMICAL INDUSTRIES, LTD.
- Nobuhiro NAITO
- C10 - PETROLEUM, GAS OR COKE INDUSTRIES TECHNICAL GASES CONTAINING CARBON MON...
Information Patent Application
VISCOSITY INDEX IMPROVING AGENT AND LUBRICATING OIL COMPOSITION
- Publication number 20230312797
- Publication date Oct 5, 2023
- SANYO CHEMICAL INDUSTRIES, LTD.
- Nobuhiro NAITO
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Application
VISCOSITY INDEX IMPROVER, LUBRICANT COMPOSITION, AND METHOD FOR MAN...
- Publication number 20180245014
- Publication date Aug 30, 2018
- SANYO CHEMICAL INDUSTRIES, LTD.
- Shigekuni NAKADA
- C10 - PETROLEUM, GAS OR COKE INDUSTRIES TECHNICAL GASES CONTAINING CARBON MON...