Magnetic imaging method

Details Magnetic imaging method Magnetic imaging method

1974-12-30

1978-07-18

Martin, Jr., Roland E.

Gas separation: apparatus

Magnetic separating means

96 1R, 96 13, 355 3DD, 346 741, 360 55, 427 18, 427 22, 427 48, 427368, 101DIG5, G03G 1322, G03G 1900, G03G 1326

Patent

active

041013204

ABSTRACT:
A magnetic imaging system is disclosed wherein an optical image is first reduced to a graphic image by employing a magnetizable marking material followed by magnetization of the graphic image and transfer of the imagewise pattern of magnetization to a magnetic substrate to provide a latent magnetic image. The latent magnetic image is utilized for the purpose of image duplicating by successive development and transfer steps or for electronic transmission of information. Improved latent magnetic images are provided by retoning the graphic image after magnetization and further magnetizing the retoned graphic image from which the latent image is produced. Also, polishing the redeveloped graphic image further improves the quality of the latent image.

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patent: 3827905 (1974-08-01), Roth
patent: 3924019 (1975-12-01), Jacob

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