In annealing process for GMR/TMR thin film, the magnetic field of 0.5 - 2.0 tesla is applied. Until now, conventional water-cooled resistive magnets were used for this purpose. The weight of the magnet for 1.5 tesla was up to 8 tons, the consumption of electricity for the magnet was up to 100KW and 140 liter per minutes of the cooling water was required, therefore a lightweight and less running cost magnet is desirable. For this purpose, we have developed the cryocooled superconducting magnet of a half weight of the conventional magnet. It was confirmed that the superconducting magnet reduces the electricity and water consumption to one-tenth of conventional one.
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