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Kei UCHIYAMA
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Chiyoda-ku, JP
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Patents Grants
last 30 patents
Information
Patent Grant
Bisphenol composition and method for producing same, and polycarbon...
Patent number
11,634,373
Issue date
Apr 25, 2023
MITSUBISHI CHEMICAL CORPORATION
Kei Uchiyama
B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information
Patent Grant
Bisphenol composition containing aromatic alcohol sulfonate and met...
Patent number
11,427,523
Issue date
Aug 30, 2022
MITSUBISHI CHEMICAL CORPORATION
Kei Uchiyama
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Patents Applications
last 30 patents
Information
Patent Application
METHOD FOR PRODUCING BISPHENOL A AND METHOD FOR PRODUCING POLYCARBO...
Publication number
20230340196
Publication date
Oct 26, 2023
MITSUBISHI CHEMICAL CORPORATION
Kei Uchiyama
C07 - ORGANIC CHEMISTRY
Information
Patent Application
BISPHENOL PRODUCTION METHOD , RECYCLED POLYCARBONATE RESIN PRODUCTI...
Publication number
20230322653
Publication date
Oct 12, 2023
MITSUBISHI CHEMICAL CORPORATION
Kei Uchiyama
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Application
BISPHENOL COMPOSITION AND POLYCARBONATE RESIN
Publication number
20220098135
Publication date
Mar 31, 2022
MITSUBISHI CHEMICAL CORPORATION
Kei Uchiyama
C07 - ORGANIC CHEMISTRY
Information
Patent Application
BISPHENOL COMPOSITION AND POLYCARBONATE RESIN
Publication number
20210403641
Publication date
Dec 30, 2021
MITSUBISHI CHEMICAL CORPORATION
Kei Uchiyama
C07 - ORGANIC CHEMISTRY
Information
Patent Application
BISPHENOL COMPOSITION CONTAINING AROMATIC ALCOHOL SULFONATE AND MET...
Publication number
20200190004
Publication date
Jun 18, 2020
MITSUBISHI CHEMICAL CORPORATION
Kei Uchiyama
B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information
Patent Application
BISPHENOL COMPOSITION AND METHOD FOR PRODUCING SAME, AND POLYCARBON...
Publication number
20200190003
Publication date
Jun 18, 2020
MITSUBISHI CHEMICAL CORPORATION
Kei UCHIYAMA
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...