Number | Date | Country | Kind |
---|---|---|---|
1-204215 | Aug 1989 | JPX |
Filing Document | Filing Date | Country | Kind | 102e Date | 371c Date |
---|---|---|---|---|---|
PCT/JP90/01008 | 8/7/1990 | 3/1/1991 | 3/1/1991 |
Publishing Document | Publishing Date | Country | Kind |
---|---|---|---|
WO91/02028 | 2/21/1991 |
Number | Name | Date | Kind |
---|---|---|---|
3630980 | Russell | Dec 1971 | |
3635861 | Russell | Jan 1972 | |
4284541 | Takeda et al. | Aug 1981 | |
4734328 | Kohyama et al. | Mar 1988 | |
4769284 | Kakugo et al. | Sep 1988 |
Number | Date | Country |
---|---|---|
0129617 | Feb 1985 | EPX |
55-149364 | Nov 1980 | JPX |
Entry |
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World Patents Index Latest, week 8104, No. 81-04951D, Derwent Publ. Ltd. London, GB & JP-A-55 149364 (Nitto Electric) 21 Nov. 1980 Abstract. |