Takamasa EGAWA

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Niihama-shi, JP

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Patents Grantslast 30 patents

Information Patent Grant
Nonaqueous electrolyte secondary battery separator
- Patent number 11,198,778
- Issue date Dec 14, 2021
- Sumitomo Chemical Company, Limited
- Tsuneyuki Abe
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Electrode assembly and nonaqueous electrolyte secondary battery
- Patent number 10,629,856
- Issue date Apr 21, 2020
- Sumitomo Chemical Company, Limited
- Yuichiro Azuma
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Separator winding core, separator roll, and method of cleaning sepa...
- Patent number 10,581,051
- Issue date Mar 3, 2020
- Sumitomo Chemical Company, Limited
- Junji Suzuki
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Inorganic oxide powder, slurry containing same, nonaqueous electrol...
- Patent number 10,014,502
- Issue date Jul 3, 2018
- Sumitomo Chemical Company, Limited
- Takamasa Egawa
- C01 - INORGANIC CHEMISTRY

Patents Applicationslast 30 patents

Information Patent Application
NONAQUEOUS ELECTROLYTE SECONDARY BATTERY SEPARATOR
- Publication number 20190119476
- Publication date Apr 25, 2019
- Sumitomo Chemical Company, Limited
- Tsuneyuki ABE
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Application
ELECTRODE ASSEMBLY AND NONAQUEOUS ELECTROLYTE SECONDARY BATTERY
- Publication number 20190081284
- Publication date Mar 14, 2019
- Sumitomo Chemical Company, Limited
- Yuichiro AZUMA
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
INORGANIC OXIDE POWDER, SLURRY CONTAINING SAME, NONAQUEOUS ELECTROL...
- Publication number 20180277814
- Publication date Sep 27, 2018
- Sumitomo Chemical Company, Limited
- Takamasa EGAWA
- C01 - INORGANIC CHEMISTRY
Information Patent Application
SEPARATOR WINDING CORE, SEPARATOR ROLL, AND METHOD OF CLEANING SEPA...
- Publication number 20180183030
- Publication date Jun 28, 2018
- Sumitomo Chemical Company, Limited
- Junji SUZUKI
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
INORGANIC OXIDE POWDER, SLURRY CONTAINING SAME, NONAQUEOUS ELECTROL...
- Publication number 20170054122
- Publication date Feb 23, 2017
- Sumitomo Chemical Company, Limited
- Takamasa EGAWA
- H01 - BASIC ELECTRIC ELEMENTS