Optical disk for use in optical memory devices

Details Optical disk for use in optical memory devices Optical disk for use in optical memory devices

1993-03-17

1995-03-21

Bowers, Jr., Charles L.

Radiation imagery chemistry: process, composition, or product th

Imaging affecting physical property of radiation sensitive...

Making named article

430320, 430945, 3692751, 3692754, G11B 584

Patent

active

053994612

ABSTRACT:
An optical disk for use in an optical memory device having guide grooves and pits on one surface thereof, wherein the depth of the guide grooves is different from that of the pits and the distance from the bottom face of each of the guide grooves to the other surface of the optical disk opposite to the one surface of the optical disk on which the guide grooves and pits are disposed is the same as the distance from the bottom face of each of the pits to the other surface of the optical disk opposite to the one surface of the optical disk on which the guide grooves and pits are disposed, and a method for the production of optical memory master plates that are used for the production of the above-mentioned optical disk.

REFERENCES:
patent: 3902010 (1975-08-01), Goshima
patent: 4150398 (1979-04-01), Kojima et al.
patent: 4259433 (1981-03-01), Mizobuchi et al.
patent: 4732844 (1988-03-01), Ota et al.
patent: 4734904 (1988-03-01), Imanaka et al.
patent: 4837130 (1989-06-01), Ohta et al.
patent: 4949331 (1990-08-01), Maeda et al.
English Abstract of Japanese Document 61-29635A Dec. 1986.

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