Masayuki YOKOYAMA

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Patents Grantslast 30 patents

Information Patent Grant
Organic light-emitting element, and light-emitting material and com...
- Patent number 11,618,730
- Issue date Apr 4, 2023
- Toyobo Co., Ltd.
- Masayuki Yokoyama
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...

Patents Applicationslast 30 patents

Information Patent Application
ORGANIC LIGHT-EMITTING ELEMENT, AND LIGHT-EMITTING MATERIAL AND COM...
- Publication number 20190194131
- Publication date Jun 27, 2019
- Toyobo Co., Ltd.
- Masayuki YOKOYAMA
- C07 - ORGANIC CHEMISTRY