Masaaki Sekine

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A giant magnetoresistive (GMR) head in tape recording systems is affected by the electrostatic discharge (ESD) between the sensor and magnetic shields. Pt-doped Al<sub>2</sub>O<sub>3</sub> was developed as a dissipative gap-material to reduce the ESD current. Pt chips were sputtered on an alumina target to vary the film resistance. The decay time of a(More)
In magnetic recording systems, it has been reported that sufficient SNR was obtained with a narrow track width, using a spin-valve head and metal-evaporated tape. In order to apply this to a helical-scan tape system, techniques for writing narrow tracks and reading them exactly were required. However, the degree of mechanical accuracy demanded was too high(More)
A giant magnetoresistive (GMR) head in tape-recording systems is affected by the electrostatic discharge (ESD) between the sensor and magnetic shields. Hence, Pt-doped Al<sub>2</sub>O<sub>3</sub> was developed as a dissipative gap material to reduce the ESD current. Pt chips were sputtered on an alumina target to vary the film resistance. The decay time of(More)
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