The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 02, 1989
Filed:
Sep. 19, 1985
Emiko Higashinakagawa, Kawasaki, JP;
Michihiko Inaba, Yokohama, JP;
Yasuhisa Ohtake, Fukaya, JP;
Masaharu Kanto, Taishi, JP;
Kabushiki Kaisha Toshiba, Kawasaki, JP;
Abstract
An image display tube constructed by use of in-tube parts comprising an alloy constituting essentially of (i) at least one of 0.5 to 4% by weight of Ti, 0.1 to 3.0% by weight of Al, 0 to 1% by weight of C, 0 to 5% by weight of Co, 0 to 12% by weight of Mo, 0 to 5% by weight of W, 0 to 4% by weight of Mn, 0 to 3% by weight of Si, 0 to 2% by weight of Be, 0 to 0.5% by weight of Cu, 0 to 0.1% by weight os S, 0 to 2% by weight of Nb and 0 to 2.0% by weight of Zr, (ii) 30 to 45% by weight of Ni, (iii) 3 to 15% by weight of Cr and (iv) a balance consisting essentially of Fe; thermoelasticity coefficient of the alloy being within the range of .+-.20.times.10.sup.-6 /.degree.C. In the color image display tubes according to this invention, no color deviation is perceived all over the screen and thus a high-quality image is obtained.