Kazuo Hirowatari

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Chiyoda-ku, JP

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Patents Grantslast 30 patents

Information Patent Grant
Bisphenol composition and polycarbonate resin
- Patent number 12,215,189
- Issue date Feb 4, 2025
- Mitsubishi Chemical Corporation
- Kei Uchiyama
- C07 - ORGANIC CHEMISTRY
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 Applicationslast 30 patents

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