Number | Date | Country | Kind |
---|---|---|---|
59-79254 | Apr 1984 | JPX |
Number | Name | Date | Kind |
---|---|---|---|
3819990 | Hayashi et al. | Jun 1974 | |
3846840 | Childers et al. | Nov 1974 | |
4055438 | Wada et al. | Oct 1977 | |
4222783 | Atsumi et al. | Sep 1980 | |
4392167 | Joormann | Jul 1983 | |
4406722 | Chow et al. | Sep 1983 | |
4430440 | Wada et al. | Feb 1984 | |
4443825 | Wank | Apr 1984 |
Number | Date | Country |
---|---|---|
0143217 | Nov 1979 | JPX |
0089915 | Jul 1980 | JPX |
Entry |
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Secrist et al., Ceramic Material for Recording Heads, vol. 12, No. 6, Nov. 1969, IBM. |