Number | Date | Country | Kind |
---|---|---|---|
4108474 | Mar 1991 | DEX |
Number | Name | Date | Kind |
---|---|---|---|
4555787 | Cohn et al. | Nov 1985 | |
4718072 | Marchetti et al. | Jan 1988 | |
4953174 | Eldridge et al. | Aug 1990 | |
5090021 | Nakatani et al. | Feb 1992 |
Number | Date | Country |
---|---|---|
0398330 | May 1990 | EPX |
60-157280 | Aug 1985 | JPX |
Entry |
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"Japanese Journal of Applied Physics", vol. 29, No. 1, Jan. 1990, pp. 95-100 (K. Nakamura et al.). |