TO

Takuma Oouchi

TC Toppan Printing Co.: 1 patents #691 of 1,467Top 50%
Overall (All Time): #3,054,100 of 4,157,543Top 75%
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Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
9040977 Organic EL element having at least one organic light-emitting layers formed of a mixture containing a polymer material and method for manufacturing the organic EL element Yasutake Akeno 2015-05-26