Number | Date | Country | Kind |
---|---|---|---|
3-198174 | Aug 1991 | JPX | |
3-198175 | Aug 1991 | JPX | |
3-345072 | Dec 1991 | JPX | |
4-38283 | Feb 1992 | JPX | |
4-96929 | Apr 1992 | JPX | |
4-103402 | Apr 1992 | JPX |
This is a continuation of application Ser. No. 07/926,108, filed Aug. 5, 1992 now U.S. Pat. No. 5,464,673.
Number | Name | Date | Kind |
---|---|---|---|
4513071 | Mey | Apr 1985 | |
4725525 | Kenney et al. | Feb 1988 | |
4860273 | Sawano et al. | Aug 1989 | |
4943681 | Sato et al. | Jul 1990 | |
4946762 | Albert et al. | Aug 1990 | |
5019476 | Kanno et al. | May 1991 | |
5049428 | Kanno et al. | Sep 1991 | |
5075147 | Usami et al. | Dec 1991 | |
5301145 | Inoue et al. | Apr 1994 |
Number | Date | Country |
---|---|---|
0379276 | Jul 1990 | EPX |
58-48245 | Mar 1983 | JPX |
61-170737 | Aug 1986 | JPX |
2-139284 | May 1990 | JPX |
2-202482A | Aug 1990 | JPX |
2-196689A | Aug 1990 | JPX |
Entry |
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M. A. Lind and J. E. Hartman, "Performance of a reversible dye-polymer optical recording medium", SPIE vol. 899 (Optical Storage Technology and Applications, pp. 211-218 (1988)). |
S. Nagac, et al., "Photochromic optical recording system using liquid crystalline polyacrylate containing spirobenzothiopyran", Optical Memory Symposium '90, 31-32 (Summer 1990). |
English Language Translation of DE 3641787 A1, Jun. 9, 1988 (Naegele). |
Chemical Abstracts, vol. 112, No. 4, Jan. 22, 1990, 112:28204z (Yoshino). |
Number | Date | Country | |
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Parent | 926108 | Aug 1992 |