Patent ID: 6077349
Filing Date: 2000-06-20
Classification: B05C,B05D,B29D,G11B,Y10S

Abstract:
An apparatus for manufacturing a disc-shaped recording medium, said apparatus comprising:a turntable adapted for rotation and upon which a disc-shaped recording medium having a center opening is set, said turntable having a center recess coincident with said center opening of said recording medium;a device operably configured to cause said turntable to rotate;a rotary disc having a disc portion and a shaft provided at and extending from a center of said disc portion, said disc having a tapered portion imparted by a gradually thickening of said disc portion proceeding along a radius from an outer rim toward the center thereof along said rotary disk being configured to be mounted on said turntable together with said recording medium with said shaft extending through said center opening of said recoding medium and into said center recess of the turntable thereby securing said recording medium on said turntable, said rotary disc being configured such that a gap is provided about said shaft and between said recording medium and said disc portion; anda coating liquid dispenser which supplies coating liquid to the center of the rotary disc and said recording medium when said shaft of said rotary disc is inserted into said turntable recess, said coating liquid spreading out over said recording medium under the influence of centrifugal force when said turntable is rotated to thereby form a film on said recording medium.