Method for producing optical information recording disk

Details Method for producing optical information recording disk Method for producing optical information recording disk

1987-10-13

1989-06-06

Weston, Caleb

Adhesive bonding and miscellaneous chemical manufacture

Methods

Surface bonding and/or assembly therefor

156245, 156257, 156293, 3461351, 346137, 360 97, 360135, 369284, 369286, B32B 3104

Patent

active

048368903

ABSTRACT:
A method for manufacturing an optical information recording disk having a reduced eccentricity between the center hole of the disk and the recorded track. A transparent circular substrate is provided having a large circular hole. A metal lamination disk member is formed having an outer diameter larger than the inner diameter of the hole in the substrate and an inner diameter smaller than the inner diameter of the hole in the substrate. The metal lamination disk member is placed on the substrate with a first adhesive and concentrically arranged relative to the substrate. A second adhesive is applied to peripheral side surface portions of the metal lamination disk member in the vicinity of the surface of the circular substrate. The second adhesive is hardened to temporarily fix metal lamination member to the substrate, and then the first adhesive is hardened.

REFERENCES:
patent: 4549922 (1985-10-01), Oishi et al.
patent: 4630156 (1986-12-01), Saito
patent: 4698715 (1987-10-01), Oishi
patent: 4704649 (1987-11-01), Oishi

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