Samsung Display Devices Co., Ltd.

Samsung Electron Devices Co., Ltd.

Samsung Sdi Co., Inc.

Kyu-Nam Joo

Jong-seo Choi

Kwi-seuk Choi

Sang-Won Lee

Geun-bae Kim

Yoon-Jin Kim

Jong-In Jung

Jong-Suh Choi

Hwan-Chul Rho

An active material for a nickel electrode includes a double hydroxycarbonate having the formula Ni.sub.1-2x M.sub.2x (OH).sub.2 (CO.sub.3).sub.x .multidot.nH.sub.2 O, where 0.05&lt;x&lt;0.2, 0.05&lt;n&lt;4, and M is a Group IIIB element and containing 1-40 at % of a III B group element in a solid solution, based on the weight of nickel, and 1-20 wt % of a conductive enhancer which is at least one substance selected from the group consisting of Co and cobalt compound, based on the weight of the double hydroxycarbonate, so that a nickel electrode having a high capacity, increased life time, high charge/discharge velocity and enhanced utility of the active material can be produced. Alkaline secondary cells can be manufactured using the nickel electrode.

Active material for nickel electrode and nickel electrode having the same

A cathode ray tube is constructed such that a resistance of a first conductive element connected to a metal film on the inner side of the panel is lower than a resistance of a second conductive element connected to a shadow mask. Thus, the amount of electrons which are emitted from an electron gun to strike the metal film increases, to thereby enhance luminance, and the amount of electrons striking the shadow mask is decreased, to thereby reduce thermal deformation of the shadow mask.

Cathode ray tube

A dispenser cathode includes a tungsten matrix which is impregnated with an active cathode material and coated with a refractory thin film layer metal material along the surfaces thereto, but not including the electron emissive surface of the matrix, thereby improving a heat transfer efficiency from a heater to the electron emissive surface.

Dispenser cathode

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Seoul, South Korea

Kyu-Nam Joo