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HOSOKAWA CHISHIO
JP5 patents
Top patents by PatentIndex Score
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Organic electroluminescence element
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Organic electroluminescence device and display
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Organic electroluminescent element and illumination device
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Organic electroluminescent element and illumination device
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US8058450B2Nov 15, 2011
Nitrogenous heterocyclic derivative and organic electroluminescence device making use of the same
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