Denki Kagaku Kogyo Kabushiki Kaisha

Akio Mikogami

Mitsuo Yamashita

Masaji Ishii

Hiroshi Oizumi

Masashi Hasegawa

Akira Miyai

Tetsuo Torigai

Metal is evaporated in a container which comprises an electrically conductive ceramic base whose surface in contact with the molten metal is coated with a film comprising, a main component selected from the group consisting of titanium carbide, zirconium carbide, hafnium carbide, vanadium carbide, niobium carbide, tantalum carbide, chromium carbide, molybdenum carbide, tungsten carbide, tungsten metal, tantalum metal and molybdenum metal.

Container for evaporation of metal

A high temperature anticorrosive molded product produced by hot pressing a mixture comprising 1-10 weight parts of powdery aluminum and 100 weight parts of a powdery composition comprising an electric conductive refractory, boron nitride and aluminum nitride wherein said powdery composition is encompassed by the range electric conductive refractory : boron nitride : aluminum nitride as shown in the basal triangle of 40 : 20 : 40, 50 : 10 : 40, 70 : 10 : 20, 70 : 20 : 10 and 40 : 50 : 10 of FIG. 1.

High temperature anticorrosive molded product

A phosphorus nitride-silicon oxide composition having good thermal stability and diffusion characteristics for use as a diffusant source of n-type impurities for a semi-conductor device.

Growing community of inventors

Machida, Japan

Akio Mikogami