Claims
- 1. A double-sided optical disc comprising:
- a first optical disc having a first side and a second side, the first optical disc including a first signal recording layer;
- a second optical disc having a first side and a second side, the second optical disc including a second signal recording layer;
- a first adhesive layer affixed to the second side of the first optical disc, the first adhesive layer including a plurality of parallel alternating projections and recesses; and
- a second adhesive layer affixed to the second side of the second optical disc, the second adhesive layer including a plurality of parallel alternating projections and recesses, the projections of the first adhesive layer bonded to and intersecting the projections of the second adhesive layer, wherein the angle between the projections of the first adhesive layer and the projections of the second adhesive layer is substantially equal to 90 degrees.
- 2. The double-sided optical disc of claim 1 wherein the first and second signal recording layers further comprise:
- magnetic material.
Priority Claims (1)
Number |
Date |
Country |
Kind |
2-41707 |
Feb 1990 |
JPX |
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Parent Case Info
This is a continuation of application Ser. No. 07/973,418, filed Nov. 9, 1992, now abandoned, which is a divisional of application Ser. No. 07/659,517, filed Feb. 21, 1991, now U.S. Pat. No. 5,284,538.
US Referenced Citations (15)
Foreign Referenced Citations (1)
Number |
Date |
Country |
0150829A1 |
Aug 1985 |
EPX |
Non-Patent Literature Citations (3)
Entry |
Patents Abstracts of Japan, unexamined applications, P field vol. 14, No. 92, Feb. 20, 1990, The Patent Office Japanese Government. * |
Patent Abstracts of Japan, unexamined applications, P Field, vol. 11, No. 121, Apr. 16, 1987, The Patent Office Japanese Government. * |
Patent Abstracts of Japan, unexamined applications, P Field, vol. 11 No. 91, Mar. 23, 1987, The Patent Office Japanese Government. * |
Divisions (1)
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Number |
Date |
Country |
Parent |
659517 |
Feb 1991 |
|
Continuations (1)
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Number |
Date |
Country |
Parent |
973418 |
Nov 1992 |
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