Yuji Oka

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Kanagawa, JP

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Patents Grantslast 30 patents

Information Patent Grant
Heterocyclic compound for organic electroluminescent device and its...
- Patent number 9,780,310
- Issue date Oct 3, 2017
- Tosoh Corporation
- Yuji Oka
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Cyclic azine compound having nitrogen-containing condensed aromatic...
- Patent number 9,252,368
- Issue date Feb 2, 2016
- Tosoh Corporation
- Hidenori Aihara
- C07 - ORGANIC CHEMISTRY

Patents Applicationslast 30 patents

Information Patent Application
NONFLAMMABLE LIQUID COMPOSITION AND ITS APPLICATIONS
- Publication number 20240130361
- Publication date Apr 25, 2024
- TOSOH CORPORATION
- Yuji OKA
- C11 - ANIMAL AND VEGETABLE OILS, FATS, FATTY SUBSTANCES AND WAXES FATTY ACIDS...
Information Patent Application
HETEROCYCLIC COMPOUND FOR ORGANIC ELECTROLUMINESCENT DEVICE AND ITS...
- Publication number 20160056388
- Publication date Feb 25, 2016
- TOSOH CORPORATION
- Yuji OKA
- C07 - ORGANIC CHEMISTRY
Information Patent Application
CYCLIC AZINE COMPOUND HAVING NITROGEN-CONTAINING FUSED AROMATIC GRO...
- Publication number 20140330013
- Publication date Nov 6, 2014
- Hidenori Aihara
- C07 - ORGANIC CHEMISTRY