Number | Date | Country | Kind |
---|---|---|---|
6-161500 | Jul 1994 | JPX |
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4353064 | Stamm | Oct 1982 | |
4381566 | Kane | Apr 1983 | |
4506148 | Berthold et al. | Mar 1985 | |
4620194 | Bel Moratalla | Oct 1986 | |
4815032 | Fujii | Mar 1989 | |
4816656 | Nakano et al. | Mar 1989 | |
5070233 | Takizawa et al. | Dec 1991 | |
5157247 | Takahira | Oct 1992 | |
5175418 | Tanaka | Dec 1992 | |
5182442 | Takahira | Feb 1993 | |
5220158 | Takahira et al. | Jun 1993 |
Number | Date | Country |
---|---|---|
5-67254 | Mar 1993 | JPX |
Entry |
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Vincent Cordonnier, Smart Cards: Present And Future Applications And Techniques, Oct. 1991, pp. 207-211. |
Ken-Ichi Konno, Toshiyuki Haga, Takagumi Kimura 2.45 GHZ Antennas Developed For Wireless Card Communications System, 1993 vol. 2, pp. 13-14-13-17. |