Number | Date | Country | Kind |
---|---|---|---|
4-161181 | Jun 1992 | JPX |
Number | Name | Date | Kind |
---|---|---|---|
4609257 | Shirasaki | Sep 1986 |
Number | Date | Country |
---|---|---|
0352002 | Jan 1990 | EPX |
58-28561 | Jun 1983 | JPX |
0044021 | Mar 1984 | JPX |
60-49297 | Nov 1985 | JPX |
60-51690 | Nov 1985 | JPX |
61-58809 | Dec 1986 | JPX |
0272419 | Nov 1990 | JPX |
477713 | Mar 1992 | JPX |
4-102821 | Apr 1992 | JPX |
Entry |
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Institute of Electronics, Information and Communication Engineers of Japan, 1992, '91 spring National Conference c-290, Research Institute of Electrocal Communication, Tohoku Univ. |