Optical recording material

Details Optical recording material Optical recording material

2005-12-27

2005-12-27

Hutt, Mark F. (Department: 1756)

Compositions

Liquid crystal compositions

Containing nonsteryl liquid crystalline compound of...

C430S270140

Reexamination Certificate

active

06979413

ABSTRACT:
Optical recording material which is capable of recording and reading an information signal by utilizing a change in the double refraction caused by a change in the molecular orientation of a side-chain type polymer liquid crystal which has an electrocyclic-reaction-type photochromic compound (or a residue thereof), or a side-chain polymer liquid crystal having in a polymer chain thereof a monomeric unit to which the photochromic compound is bonded.

REFERENCES:
patent: 5281501 (1994-01-01), Tatezono et al.
patent: 5529864 (1996-06-01), Tachibana et al.
patent: 5644416 (1997-07-01), Morikawa et al.
patent: 6133390 (2000-10-01), Kozlovski et al.
patent: 6512085 (2003-01-01), Minabe et al.
patent: 6650615 (2003-11-01), Yamamoto et al.
patent: 6787621 (2004-09-01), Kim et al.
patent: 0 864 885 (1998-09-01), None
patent: 05-105730 (1993-04-01), None
patent: 05-232623 (1993-09-01), None
patent: 6-148608 (1994-05-01), None
patent: 7-36008 (1995-02-01), None
patent: 7-161039 (1995-06-01), None
patent: 08-069083 (1996-03-01), None
patent: 8-146391 (1996-06-01), None
patent: 9-77767 (1997-03-01), None
patent: 09-311356 (1997-12-01), None
patent: 11-30835 (1999-02-01), None
patent: 11256147 (1999-09-01), None
patent: 2001049244 (2001-02-01), None
English translation of Yukio et al.
English translation of Shinichi.
English translation of Takeshi et al.
C. Denekamp and B. L. Feringa, “Optically Active Diarylethenes for Multimode Photoswitching Between Liquid-Crystalline Phases”, Advanced Materials, 10, No. 14, 1998, pp. 1080-1082.
M. Eichi and J.H. Wendorff, “Reversible Digital and Holographic Optical Storage in Polymeric Liquid Crystals”, Macromol. Chem. Rapid Commun., 8, 1987, pp. 59-63.
Tsuyoshi Kawai, et al., “Refractive Index Change of Dithienylethene in Bulk Amorphous Solid Phase”, Jpn. J. Appl. Phys., vol. 38, 1999, pp. L1194-L1196.

Affiliated with

Also associated with

Rating

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

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3513773