Computer Basic Technology Research Association

Computer Basic Technology Research Assoc.

Mituo Sato

Shinji Narishige

Toshihiro Yoshida

Masayuki Takagi

Tsuneo Yoshinari

Katsuya Mitsuoka

Sadanori Nagaike

A thin film magnetic head comprises a lower magnetic member and an upper magnetic film which constitute a magnetic circuit having a magnetic gap at a predetermined location, and a conductor film forming a coil which intersects the magnetic circuit. At least the upper magnetic film has a magnetostriction constant which is not greater than 6.times.10.sup.-7 in the absolute value.

Thin film magnetic head

A thin film magnetic head comprises an upper magnetic film and a lower magnetic film which cooperate to constitute a magnetic circuit including a magnetic gap, and a coil conductor film constituting a coil having a predetermined number of turns and extending between the upper and the lower magnetic films to intersect the magnetic circuit. The upper magnetic film is composed of a laminate constituted by magnetic thin film layers and non-magnetic thin film layers stacked alternately with each other. An electrically insulating layer formed of a photo-sensitive resin is interposed between the upper magnetic film and the coil conductor film.

Growing community of inventors

Takahagi, Japan

Mituo Sato