Number | Date | Country | Kind |
---|---|---|---|
59-52211 | Mar 1984 | JPX | |
60-8532 | Jan 1985 | JPX |
Number | Name | Date | Kind |
---|---|---|---|
4058846 | Knutson et al. | Nov 1977 | |
4263630 | Pierson | Apr 1981 | |
4555740 | Jackson et al. | Dec 1985 |
Entry |
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Cheatham et al., "Magnetic Head Construction", IBM TDB, Jul. 1976, vol. 19, No. 2, p. 397. |
Shew, "Increased Density Magnetic Recording", IBM TDB, Aug. 1959, vol. 2, No. 2, p. 35. |