Takuma Oouchi

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Tokyo, JP

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Patents Grantslast 30 patents

Information Patent Grant
Organic EL element having at least one organic light-emitting layer...
- Patent number 9,040,977
- Issue date May 26, 2015
- Toppan Printing Co., Ltd.
- Yasutake Akeno
- H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR

Patents Applicationslast 30 patents

Information Patent Application
ORGANIC EL ELEMENT AND METHOD FOR MANUFACTURING ORGANIC EL ELEMENT
- Publication number 20140231792
- Publication date Aug 21, 2014
- Yasutake Akeno
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
INK COMPOSITION, ORGANIC EL DEVICE USING INK COMPOSITION, AND METHO...
- Publication number 20140008642
- Publication date Jan 9, 2014
- Toppan Printing Co., Ltd.
- Takayuki Morita
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...