Optical information recording medium

Details Optical information recording medium Optical information recording medium

2008-01-22

2008-01-22

Nguyen, Hoa T. (Department: 2627)

Dynamic information storage or retrieval

Storage medium structure

Optical track structure

C369S288000

Reexamination Certificate

active

07321543

ABSTRACT:
An optical information recording medium which makes it possible to reduce the noise level and improve the C/N ratio. An optical information recording medium has a recording layer formed on a substrate, for having a laser beam irradiated thereto for recording and reproduction of record data. The recording layer includes a first sub-recording film and a second sub-recording film. The first sub-recording film is formed of a first material containing Si as the main component. The second sub-recording film is formed of a second material containing Zn as the main component and having Cu added thereto, and disposed in the vicinity of the first recording film. The laser beam is irradiated to the recording layer via a light transmitting layer formed in a manner covering the recording layer side.

REFERENCES:
patent: 5882759 (1999-03-01), Hirotsune et al.
patent: 6656559 (2003-12-01), Mizushima et al.
patent: 7018695 (2006-03-01), Kakiuchi et al.
patent: 2004/0076907 (2004-04-01), Inoue et al.
patent: 2003-302339 (2003-10-01), None
English Language Abstract of JP 2003-302339.
U.S. Appl. No. 10/896,051, to Inoue et al., filed Jul. 22, 2004.
U.S. Appl. No. 10/896,110, to Inoue et al., filed Jul. 22, 2004.
U.S. Appl. No. 10/896,117, to Inoue et al., filed Jul. 22, 2004.
U.S. Appl. No. 10/923,665, to Inoue et al., filed Jul. 22, 2004.
U.S. Appl. No. 10/923,666, to Inoue et al., filed Jul. 22, 2004.
U.S. Appl. No. 10/923,673, to Inoue et al., filed Jul. 22, 2004.
U.S. Appl. No. 10/923,679, to Inoue et al., filed Jul. 22, 2004.
U.S. Appl. No. 10/923,682, to Inoue et al., filed Jul. 22, 2004.
U.S. Appl. No. 10/923,699, to Inoue et al., filed Jul. 22, 2004.

Affiliated with

Also associated with

Rating

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

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2774632