Quotables
"To place a man in a multi-stage rocket and project him into the controlling gravitational field of the moon where the passengers can make scientific observations, perhaps land alive, and then return to earth--all that constitutes a wild dream worthy of Jules Verne. I am bold enough to say that such a man-made voyage will never occur regardless of all future advances."
Lee deForest, American radio pioneer ; 1957
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| Number | Title | Issue Date |
| 4410277 | Apparatus for detecting magneto-optical anisotropy This invention relates to an apparatus for detecting magneto-optical anisotropy which can be utilized as an information reproduction apparatus for detecting information recorded on a magnetic medium. The apparatus consists of a light source (10), a magnet... | 10/18/1983 |
| 4367257 | Thin magnetic recording medium A magnetic recording medium having a thin magnetic amorphous rare earth metal-transition metal alloy film is disclosed, the amorphous alloy film having an axis of easy magnetization in a direction substantially vertical to the film surface and containing ... | 01/04/1983 |
| 4323984 | Switching equipment using magnetic domains A small, highly reliable and inexpensive switching equipment, in which digital signals to be switched, stored as the presence or absence of magnetic domains in a first magnetic sheet or applied as the presence or absence of light to a flat plane formed by... | 04/06/1982 |
| 4310899 | Thermomagnetic record carrier A storage medium for use in a device for thermomagnetically writing and magneto-optically reading information. The medium comprises a nonmagnetizable substrate bearing an amorphous layer of a rare earth metal-iron type alloy (which contains from 20 to 30 ... | 01/12/1982 |
| 4229072 | Color display system using magneto-optic screen having a dispersive Faraday coefficient A display system using the dispersive Faraday coefficient of a magnetic screen to obtain a color display from white light is disclosed. A beam of energy is directed upon a magnetic screen while concurrently an intensity modulated magnetic field is directe... | 10/21/1980 |
| 4153328 | Polarization converter and circuit elements for use in optical waveguides Wave propagation in thin film optical waveguides using gyrotropic or anisotropic material in either the substrate or adjacent top layer with respect to the thin film waveguide is analyzed and a mode converter capable of converting TE to TM or TM to TE pol... | 05/08/1979 |
| 4126494 | Magnetic transfer record film A magnetic transfer record film employed for magneto-optically reading magnetic record patterns. The magnetic transfer record film is formed, as the principal component, of an alloy of a heavy rare earth metal and a transition metal and has an easy axis o... | 11/21/1978 |
| 4020475 | Magnetic device operating with the photomagnetic effect A magnetic device which can be driven by means of electromagnetic radiation and has a radiation-sensitive element consisting of cobalt-doped yttrium-iron garnet. Exposure to electromagnetic radiation produces a decrease of the magnetic permeability of the... | 04/26/1977 |
| 3949387 | Beam addressable film using amorphous magnetic material A beam addressable file using as a storage medium an amorphous magnetic composition having uniaxial anisotropy. The storage medium can be prepared in thin film or bulk form or as particles in a binder. The storage medium can be comprised of a single eleme... | 04/06/1976 |
| 3947890 | Magneto-optical readout apparatus A method and apparatus are disclosed for retrieving magnetically recorded information by optical means. The magnetic recording is irradiated by a beam of coherent light whose plane of polarization is periodically varied. The light which is transmitted or ... | 03/30/1976 |
| 3944992 | Magneto-optical information storage device using photoconductive control element The invention relates to a device for magneto-optic memories controlled by light and/or heat in an external magnetic field, in which the magneto-optic material of the memory has a photoconductive layer which can be activated by the control beam and which ... | 03/16/1976 |
