Number | Date | Country | Kind |
---|---|---|---|
63-207660 | Aug 1988 | JPX | |
63-292685 | Nov 1988 | JPX |
Number | Name | Date | Kind |
---|---|---|---|
3945240 | Brown | Mar 1976 | |
4565772 | Takeoka et al. | Jan 1986 |
Number | Date | Country |
---|---|---|
158046 | Sep 1982 | JPX |
Entry |
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"Optical Video-Disk System", H. Kanamaru; Journal of the Institute of Television Engineers of Japan, vol. 32, No. 1, pp. 15-22, 1978. |
"Magneto-Optical Disk Substrate Prepared by Reactive Ion Etching", Kenji Ohta et al.; pp. 77-81, 1985. |