Number | Date | Country | Kind |
---|---|---|---|
1-100025 | Apr 1989 | JPX | |
1-100026 | Apr 1989 | JPX | |
1-249123 | Sep 1989 | JPX | |
1-257033 | Oct 1989 | JPX | |
2-45387 | Feb 1990 | JPX | |
2-64155 | Mar 1990 | JPX |
Filing Document | Filing Date | Country | Kind | 102e Date | 371c Date |
---|---|---|---|---|---|
PCT/JP90/00520 | 4/20/1990 | 12/14/1990 | 12/14/1990 |
Publishing Document | Publishing Date | Country | Kind |
---|---|---|---|
WO90/13000 | 11/1/1990 |
Number | Name | Date | Kind |
---|---|---|---|
2911880 | Rantsch | Nov 1959 | |
3601490 | Erickson | Aug 1971 | |
4013366 | Philbert | Mar 1977 | |
4626103 | Feldman et al. | Dec 1986 | |
4704033 | Fay et al. | Nov 1987 | |
4744659 | Kitabayashi | Apr 1988 |
Number | Date | Country |
---|---|---|
2445512 | Jul 1980 | FRX |
2052090 | Jan 1981 | GBX |
Entry |
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IBM Technical Disclosure Bulletin, vol. 24, No. 1B, Jun. 1981, pp. 541-542, "Evaluation of Sinusoidally Varying Light Signals". |
Soviet Patent Abstracts, Mar. 29, 1989, p. 11, AN=89-052538/07, Derwent Pub., London, GB; & SU-A-1413 547, (Voron Poly (NYVO)), Jul. 30, 1988. |