Hitachi, Ltd.

Isamu Yuitoo

Kazuo Shiiki

Yoshihiro Hamakawa

Noriyuki Kumasaka

Yoshihiro Shiroishi

Naoki Koyama

Masahiro Kitada

Shigekazu Otomo

Kanji Kawakami

Eijin Moriwaki

Hitoshi Numasaka

In an inductive-write, magnetoresistive-read type magnetic head having a magnetoresistive read head and an inductive write head superimposed on each other, the magnetic center of the read head is made more coincident with the physical center of the write head by a changing of a magnetization direction of a magnetoresistive element. The recording/reproducing apparatus using this magnetic head can thus have a good S/N ratio even if the track width is narrow.

Magnetic head and recording and reproducing apparatus having an

Multilayered magnetic films of the invention comprising at least two unit magnetic films each of which has a thickness of from 0.05 to 0.9 .mu.m and includes a plurality of ferromagnetic layers each having a thickness of from 0.01 to 0.2 .mu.m and a 1 nm to 10 nm thick first intermediate layer consisting of a ferromagnetic, nonmagnetic or antiferromagnetic material and provided between adjacent ferromagnetic layers, and a second intermediate layer having a thickness of from 10 to 40 nm, consisting of a nonmagnetic or antiferromagnetic material and provided between the at least two unit magnetic films. The multilayered magnetic film is suitable as a pole of a thin-film magnetic head. An underlayer may be further provided between the magnetic film and a substrate whereby a multilayered magnetic film having good characteristics can be obtained.

Multilayered magnetic films and thin-film magnetic heads using the same

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Odawara, Japan

Isamu Yuitoo