Ryotaro UMEZU

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Patents Grantslast 30 patents

Information Patent Grant
Method for producing aromatic nitrile compound and method for produ...
- Patent number 12,202,786
- Issue date Jan 21, 2025
- Mitsubishi Gas Chemical Company, Inc.
- Hidefumi Harada
- B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information Patent Grant
Method for producing carbonic ester
- Patent number 11,970,442
- Issue date Apr 30, 2024
- Mitsubishi Gas Chemical Company, Inc.
- Hidefumi Harada
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Method for producing aromatic nitrile compound and method for produ...
- Patent number 11,673,856
- Issue date Jun 13, 2023
- Mitsubishi Gas Chemical Company, Inc.
- Hidefumi Harada
- B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information Patent Grant
Method for regenerating catalyst and method for producing carbonate...
- Patent number 11,596,936
- Issue date Mar 7, 2023
- Mitsubishi Gas Chemical Company, Inc.
- Hidefumi Harada
- B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL

Patents Applicationslast 30 patents

Information Patent Application
METHOD FOR PRODUCING 2-FURONITRILE AND METHOD FOR PRODUCING CARBONI...
- Publication number 20240261730
- Publication date Aug 8, 2024
- Mitsubishi Gas Chemical Company, Inc.
- Keiichi TOMISHIGE
- B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information Patent Application
METHOD FOR PRODUCING AROMATIC NITRILE COMPOUND AND METHOD FOR PRODU...
- Publication number 20230348367
- Publication date Nov 2, 2023
- Mitsubishi Gas Chemical Company, Inc.
- Hidefumi HARADA
- C07 - ORGANIC CHEMISTRY
Information Patent Application
METHOD FOR PRODUCING AROMATIC NITRILE COMPOUND AND METHOD FOR PRODU...
- Publication number 20210261496
- Publication date Aug 26, 2021
- Mitsubishi Gas Chemical Company, Inc.
- Hidefumi HARADA
- C07 - ORGANIC CHEMISTRY
Information Patent Application
METHOD FOR PRODUCING CARBONIC ESTER
- Publication number 20210061749
- Publication date Mar 4, 2021
- Mitsubishi Gas Chemical Company, Inc.
- Hidefumi HARADA
- C07 - ORGANIC CHEMISTRY
Information Patent Application
METHOD FOR REGENERATING CATALYST AND METHOD FOR PRODUCING CARBONATE...
- Publication number 20200282389
- Publication date Sep 10, 2020
- Mitsubishi Gas Chemical Company, Inc.
- Hidefumi HARADA
- B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL