Composite optical disk with structure for preventing adhesive fr

Details Composite optical disk with structure for preventing adhesive fr Composite optical disk with structure for preventing adhesive fr

1996-07-26

1999-09-21

Miller, Brian E.

Dynamic information storage or retrieval

Storage medium structure

Layered

G11B 726

Patent

active

059563176

ABSTRACT:
A composite optical disk structure includes a first transparent disk plate having a first center hole, a first stamper clamp groove and a first information recording area on its one main surface; a second transparent disk plate having a second center hole having a diameter equal to that of the first center hole, a second stamper clamp groove and a second information recording area on its one main surface; a transparent adhesive sandwiched between the first and second transparent disk plates to bond the one main surfaces of them; and a mechanism formed between the one main surfaces for preventing the transparent adhesive from leaking our into the center holes.

REFERENCES:
patent: 4623570 (1986-11-01), Alexander et al.
patent: 4892606 (1990-01-01), Miyazaki et al.
patent: 5132960 (1992-07-01), Hosokawa et al.
patent: 5681634 (1997-10-01), Miyamoto et al.
patent: 5728250 (1998-03-01), Kakinuma

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