Document Type and Number:
Japanese Patent JPS5430770
Kind Code:
B2
Abstract:
PURPOSE:Giving stainless steel select absorbing characteriscics of the electro magnetic waves with the range of 0.2 to 4.5 micron simply and economically by formin a black coloured oxidized film at its surface.
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Application Number:
JP14844775A
Publication Date:
October 03, 1979
Filing Date:
December 15, 1975
Export Citation:
International Classes:
H01P1/22; F24J2/48; H01P1/20; H01Q15/14; H01Q17/00; H05K9/00