Optical recording medium
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Jan 8, 2008
Grant Date -
May 5, 2005
app pub date -
Oct 27, 2004
filing date -
Oct 31, 2003
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
An optical recording medium comprises a transmission substrate and a recording layer formed on the transmission substrate, the recording layer containing at least a dye material expressed by a general formula shown at the following chemical formula (in the chemical formula 1, R1 represents alkyl group having carbon numbers 1 to 4, R2, R3 represent alkyl group having carbon numbers 1 to 4, benzyl group or groups combined to form 3 to 6 rings, Y1 and Y2 independently represent organic groups and X represent ClO.sub.4, BF.sub.4, PF.sub.6, SbF.sub.6) and a dye material expressed by a general formula represented by the following chemical formula 2(in the chemical formula 2, R1 and R2 represent alkyl groups having carbon numbers 1 to 4, benzyl groups or groups combined to form 3 to 6 rings, Y1, Y2 independently represent organic groups and X represent ClO.sub.4, BF.sub.4, PF.sub.6, SbF.sub.6): ##STR00001## In a write once type optical recording medium such as DVD-R and DVD+R, satisfactory recording characteristics can be obtained from low-speed recording to high-speed recording.
First Claim
Family
International Classification(s)
Cited Art Landscape
Patent Citation Ranking
Recipient Email Address
Recipient Email Address
Comment
Recipient Email Address
Add to Portfolio(s)
To add this patent to one, or more, of your portfolios, simply click the add button.
This Patent is in these Portfolios:
Add to additional portfolios:
Last Refreshed On:
Changes done successfully