Ryoma YASUI

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Nagareyama-shi, Chiba, JP

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Patents Grantslast 30 patents

Information Patent Grant
Barrier film, and wavelength conversion sheet, back light, and liqu...
- Patent number 12,078,890
- Issue date Sep 3, 2024
- Dai Nippon Printing Co., Ltd.
- Tatsuji Nakajima
- G02 - OPTICS

Patents Applicationslast 30 patents

Information Patent Application
BARRIER FILM, AND WAVELENGTH CONVERSION SHEET, BACK LIGHT, AND LIQU...
- Publication number 20230305335
- Publication date Sep 28, 2023
- DAI NIPPON PRINTING CO., LTD.
- Tatsuji NAKAJIMA
- G02 - OPTICS
Information Patent Application
BARRIER FILM, WAVELENGTH CONVERSION SHEET USING SAME, BACKLIGHT AND...
- Publication number 20230104432
- Publication date Apr 6, 2023
- DAI NIPPON PRINTING CO., LTD.
- Tatsuji NAKAJIMA
- B32 - LAYERED PRODUCTS