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5,717,381
Copyright protection for photos and documents using magnetic elements
5,714,747 Magnetic card and reader system 5,698,839 Magnetically encodable card having magnetic pigment uniformly dispersed in plastic 5,689,184 Large scale metallic object detector 5,634,158 Magnetics-on-film, multi-track image area interleaved record/reproduce system 5,616,911 Read-only magnetic security pattern 5,574,363 Stability method and apparatus for nondestructive measure of magnetic saturation flux density in magnetic materials 5,572,267 Passive data recording onto magnetic layers of photographic film 5,545,885 Method and apparatus for detecting and identifying coded magnetic patterns on genuine articles such as bank notes 5,386,332 Magnetic head for high-frequency, high density recording 5,218,498 Composite read-while-write magnetic head assembly 5,216,561 Apparatus and method of manipulating sum, absolute difference and difference signals for suppressing medium-induced playback error in a magnetoresistive head assembly 5,105,087 Large solid state sensor assembly formed from smaller sensors 4,994,320 Thin magnetic film having long term stabilized uniaxial anisotropy |
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7936 Represa
Circle, Carlsbad,
CA 92009 |
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