Number | Date | Country | Kind |
---|---|---|---|
5-273883 | Nov 1993 | JPX | |
5-293800 | Nov 1993 | JPX | |
5-293801 | Nov 1993 | JPX | |
6-132744 | Jun 1994 | JPX | |
6-155470 | Jun 1994 | JPX | |
6-236622 | Sep 1994 | JPX | |
6-259688 | Sep 1994 | JPX |
Number | Name | Date | Kind |
---|---|---|---|
4588666 | Stolka et al. | May 1986 | |
4720432 | Vanslyke et al. | Jan 1988 | |
4833054 | Akasaki et al. | May 1989 | |
5482822 | Mihara et al. | Jan 1996 |
Number | Date | Country |
---|---|---|
5-239455 | Sep 1993 | JPX |
6-199745 | Jul 1994 | JPX |
Entry |
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Appl. Phys. Lett. vol. 51, No. 12, Sep. 21, 1987, C.W. Tang, et al., "Organic Electroluminescent Diodes", pp. 913-915. |
Database WPI, Derwent Publications Ltd. AN 91-187965, JP-A-2 234 394, Sep. 17, 1990. |
Nakaya et al., Chemical Abstracts, vol. 123, abstract 270294. |