Optical recording medium and its manufacturing method

Dynamic optical information storage or retrieval – Optical storage medium structure

Reexamination Certificate

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

Reexamination Certificate

active

07353528

ABSTRACT:
A multi-layered film made of sequentially stacked first dielectric layer, recording layer, record-assist layer, second dielectric layer and first reflection layer on a disc substrate having a concavo-convex structure at least on one surface thereof. An ultraviolet-setting resin layer is formed to cover the multi-layered film. The record-assist layer is controlled in thickness to satisfy the relation d/4<a<3d, or more preferably the relation d/2≦a≦2d, between the thickness d of the recording layer and the thicknessaof the record-assist layer. The stacking order of the multi-layered film may be opposite. In this case, a light-transmitting sheet is provided to cover the multi-layered film via a bonding layer.

REFERENCES:
patent: 5158859 (1992-10-01), Imatake et al.
patent: 5185233 (1993-02-01), Santo
patent: 5354590 (1994-10-01), Tamura et al.
patent: 5424106 (1995-06-01), Yamada et al.
patent: 5475656 (1995-12-01), Sato et al.
patent: 5545454 (1996-08-01), Yamada et al.
patent: 6061307 (2000-05-01), Shimazaki et al.
patent: 6436524 (2002-08-01), Ishida et al.
patent: 6802073 (2004-10-01), Takahashi et al.
patent: 2004/0047281 (2004-03-01), Nishihara et al.
patent: 1039448 (2000-09-01), None
patent: 3040238 (1991-02-01), None
patent: 5342629 (1993-12-01), None
patent: 2002117577 (2002-04-01), None
patent: 2002123977 (2002-04-01), None
patent: 9847142 (1998-10-01), None
patent: 9930908 (1999-06-01), None

LandOfFree

Say what you really think

Search LandOfFree.com for the USA inventors and patents. Rate them and share your experience with other people.

Rating

Optical recording medium and its manufacturing method does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Optical recording medium and its manufacturing method, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Optical recording medium and its manufacturing method will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-2761311

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.