Alps Electric Co., Ltd.

Takashi Saito

Katsuya Kikuiri

Hiroshi Yamagami

Kazuhiro Kaneko

Masao Aoki

A thin film magnetic head that reduces the coil resistance of the coil layer formed between core layers is formed by increasing the conductor width at a fixed ratio from the inner to the outer side of the coil layer in the conductor width of each turn. The conductor width on the front side with respect to a base end portion of an upper core layer is smaller than the conductor width on the rear side with respect to the base end portion, whereby it is possible to reduce the coil resistance value of the entire coil layer. Further, using a change in conductor width, it is possible to increase the magnetic efficiency of the magnetic head compared to conventional magnetic heads.

Thin film magnetic head capable of reducing coil resistance value of entire coil layer formed between core layers

The absolute values of the apparent magnetocrystalline anisotropic energy K1 is made large to increase the absolute value of the crystal magnetic anisotropy energy by adjusting the content of Fe.sub.2 O.sub.3 in the single crystal ferrite to 50 to 52 mol % or 55 to 58 mol %, thereby the absolute value of the apparent magnetic anisotropic energy is increased. Accordingly, the magnetic pole at the demagnetization time is stabilized and noise fluctuation is suppressed to a low level.

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Niigata-ken, Japan

Takashi Saito