Stock material or miscellaneous articles – Circular sheet or circular blank – Recording medium or carrier
Patent
1994-01-31
1998-06-16
Kiliman, Leszek
Stock material or miscellaneous articles
Circular sheet or circular blank
Recording medium or carrier
428694T, 428694TS, 428694TR, 428694BR, 428900, 360131, 360134, 360135, 369277, 369280, 369283, 369286, G11B 566
Patent
active
057667187
ABSTRACT:
It is disclosed that a longitudinal magnetic recording medium and apparatus has recording sections having longitudinal magnetic films magnetically isolated in a recording direction. The magnetically isolated recording sections can record a single bit each so that the longitudinal magnetic recording medium can remove the irregular domain boundary of its own caused on boundaries of magnetization reversals in the recording direction. This can improve the signal-to-media noise ratio to a great extent in writing and reading.
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Proceedings VLSI and Computer Peripherals, May 1989, p. 1-12-1-15; Ian L. Sanders and al,: "Discrete tracks--Possibilities for high-density magnetic disks?" pp. 1-13, left-hand col. line 27 right-hand column, line 7; figure 3.
Akagi Kyo
Futamoto Masaaki
Kugiya Fumio
Matsuda Yoshibumi
Miyamura Yoshinori
Hitachi , Ltd.
Kiliman Leszek
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