Seiya ASHIBE

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Kako-gun, Hyogo, JP

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Patents Grantslast 30 patents

Information Patent Grant
Method for producing methylene disulfonate compound
- Patent number 12,129,239
- Issue date Oct 29, 2024
- Sumitomo Seika Chemicals Co., Ltd.
- Seiya Ashibe
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Method for producing cyclic disulfonic acid ester compound
- Patent number 11,802,119
- Issue date Oct 31, 2023
- Sumitomo Seika Chemicals Co., Ltd.
- Seiji Bando
- C07 - ORGANIC CHEMISTRY

Patents Applicationslast 30 patents

Information Patent Application
METHOD FOR PRODUCING ALKANEDISULFONIC ACID COMPOUND
- Publication number 20230159443
- Publication date May 25, 2023
- Sumitomo Seika Chemicals Co., Ltd.
- Yusaku MASUHARA
- C07 - ORGANIC CHEMISTRY
Information Patent Application
METHOD FOR PRODUCING CYCLIC DISULFONIC ACID ESTER COMPOUND
- Publication number 20220251060
- Publication date Aug 11, 2022
- Sumitomo Seika Chemicals Co., Ltd.
- Seiji BANDO
- C07 - ORGANIC CHEMISTRY
Information Patent Application
METHOD FOR PRODUCING METHYLENE DISULFONATE COMPOUND
- Publication number 20220251059
- Publication date Aug 11, 2022
- Sumitomo Seika Chemicals Co., Ltd.
- Seiya ASHIBE
- C07 - ORGANIC CHEMISTRY