Number | Date | Country | Kind |
---|---|---|---|
62-44523 | Feb 1987 | JPX |
Number | Name | Date | Kind |
---|---|---|---|
4122306 | Friedman et al. | Oct 1978 | |
4300174 | Harman et al. | Nov 1981 | |
4357635 | Hasegawa | Nov 1982 | |
4577239 | Sougen | Mar 1986 | |
4633337 | Horie et al. | Dec 1986 | |
4644419 | Iinuma et al. | Feb 1987 | |
4651235 | Morita et al. | Mar 1987 | |
4651238 | Ishikura | Mar 1987 |
Entry |
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"Barium Ferrite Perpendicular Recording Floppy Disk" by Imamura et al., Toshiba Review, No. 154, winter 1985, pp. 18-22. |