Minebea Company, Limited

Masayuki Iwakura

Akinobu Sano

A magnetic head assembly that lessens undesired or harmful vibration is provided. A gimbal of a magnetic head assembly has an outskirt part , an intermediate part , and an inland part . The intermediate part is arranged inside the outskirt part with first aperture segments and therebetween, and is connected to the outskirt part via first bridges and . The inland part is arranged inside the intermediate part and connected thereto via second bridges and and second damping parts and . The second bridges and and the second damping parts and act so as to modify the resonant frequency of the inland part . Additional damping parts may be provided.

Magnetic head assembly having damping part integral with gimbal

The second inner wall and the fourth inner wall of the hole of the slider comprises the second and the fourth projections and , and the first inner wall is not provided with a projection and is inclined to the vertical surface at an angle &thgr;. The raising portions of the second projection and the fourth projection is made in the radius curvature portion . Since, at the time of insertion of the front core into the hole , side portion of the front core abuts to the first inner wall at one line, the front core is positioned precisely by the pushing force of the front core in the A direction, and by application of a provisional adhesive to near B portion and near fourth projection . At the time of extracting of the die after molding the slider , the concentration of the internal stress to the radius curvature portion is avoided, and the generation of the defects such as lacking and cracking are controlled to increase the reliability, reduce the defective rate of the product, to increase the productivity and to realize the cost down.

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Sizuoka-ken, Japan

Masayuki Iwakura