| 摘要 |
1276157 Magnetic storage devices KOKUSAI DENSHIN DENWA KK 9 July 1969 [10 July 1968] 34505/69 Heading H3B In a method of making a memory plate, parallel conductors 3a on a flexible backing 1 are coated with a first ferromagnetic film 4 which is then adhered to a substrate 5 so that the backing 1 may be stripped off, and a second magnetic film 4a is deposited to form with the first magnetic film a closed magnetic circuit round each conductor. The conductors 3a are initially formed by etching a sheet 3 adhered to the backing 1. The complete plate may be assembled with a plate of Fig. 1D and insulation 8 to form a magnetic storage device, Fig. 1E. In Figs. 2A-2E (not shown), the etching of the conductors follows deposition of the first film and adhesion to the substrate, while in Figs. 3A-3E etching follows the first deposition. |
