Investigation of 2 Gb/in/sup 2/ magnetic recording at a track density of 17 kTPI
Masaaki Futamoto, Fumio KUGIYA, Makoto Suzuki, Hisashi TAKANO, Yumi Matsuda, Naohiko Inaba, Yoshinori Miyamura, Kyo AKAGI, Toshifumi Nakao, H. Sawaguchi, Hidekazu Fukuoka, T. Munemoto, T. Takagaki · IEEE Transactions on Magnetics · 1991
Developments of magnetic head, recording medium, positioning, and signal processing technologies made it possible to perform magnetic recording at an areal density of 2 Gb/in/sup 2/ on a prototype 3.5-in diameter hard disk drive. A track density of 17 kTPI, which is comparable to or even greater than that used in optical storage systems, is used to minimize the reduction in the physical clearance between the medium and the head. The authors outline the system and its component technologies. The read/write characteristics of the 3.5-in prototype disk system are also reported.>