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Organic EL device
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Patent number 6,280,861
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Issue date Aug 28, 2001
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Idemitsu Kosan Co., Ltd.
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Chishio Hosokawa
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H01 - BASIC ELECTRIC ELEMENTS
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Organic electroluminescence device
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Patent number 5,516,577
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Issue date May 14, 1996
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Idemitsu Kosan Co., Ltd.
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Masahide Matsuura
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C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
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Organic electroluminescence device
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Patent number 5,503,910
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Issue date Apr 2, 1996
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Idemitsu Kosan Co., Ltd.
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Masahide Matsuura
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C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
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Organic electroluminescence device
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Patent number 5,336,546
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Issue date Aug 9, 1994
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Idemitsu Kosan Co., Ltd.
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Yoshio Hironaka
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C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
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Electroluminescent element
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Patent number 5,126,214
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Issue date Jun 30, 1992
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Idemitsu Kosan Co., Ltd.
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Hiroshi Tokailin
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G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS
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