Raw material for shadow mask for color image receiving tube

Details Raw material for shadow mask for color image receiving tube Raw material for shadow mask for color image receiving tube

2005-07-12

2005-07-12

Patel, Ashok (Department: 2879)

Electric lamp and discharge devices

Cathode ray tube

Shadow mask, support or shield

C313S403000, C313S407000, C313S408000

Reexamination Certificate

active

06917150

ABSTRACT:
A subject of the present invention is to provide for a shadow mask material for a color picture tube with excellent tensile strength and excellent high temperature creep strength, a shadow mask made of the shadow mask material and a color picture tube with the shadow mask. Material for a shadow mask is made from low carbon steel containing manganese of equal or more than 0.60 wt % and aluminum of 0.002 to 0.12 wt %. A shadow mask is made of the material and the shadow mask is installed in a picture image tube.

REFERENCES:
patent: 4306172 (1981-12-01), Matsukura et al.
patent: 4558252 (1985-12-01), Kanto et al.
patent: 5610473 (1997-03-01), Yokota et al.
patent: 6016029 (2000-01-01), Okayama et al.
patent: 6258496 (2001-07-01), Makita et al.
DialogIP document; Abstract of JP 9227998 A; Sep. 2, 1997; Nisshin Steel Co Ltd;Cold Rolled Steel Sheet for Color Picture Tube Color Separating Electrode Structural Body and its Production.
DialogIP document; Abstract of JP 8027541 A; Jan. 30, 1996; Nisshin Steel Co Ltd;Steel Sheet for Aperature Grille and Production Thereof.
DialogIP document; Abstract of JP 5311332 A; Nov. 22, 1993; Nikko Kinzoku KK;Base Stock Sheet for Aperature Grill.
DialogIP document; Abstract of JP 1025953 A; Jan. 27, 1989; Nippon Mining Co Ltd;Shadow Mask and its Production.

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