Showa Aluminum Corporation

Showa Aluminum Kabushiki Kaisha

Minoru Hasegawa

Hiroshi Matsumoto

Yuichi Furukawa

Koichiro Fukui

Kazunari Noguchi

Toshimitsu Uchiyama

Saburo Shimodaira

Tatsuo Ootsuka

Isamu Uchida

A heat pipe comprising a container having water enclosed therein as a working fluid and made of a material reactive with water to evolve hydrogen gas. The heat pipe is characterized in that the container has placed therein a solid oxidizing agent for oxidizing the hydrogen gas to water. The hydrogen gas produced by the reaction of the working fluid, i.e. water, with the container is oxidized to water by the oxidizing agent without remaining in the form of a gas within the condensing portion of the pipe.

Heat pipe

Colored aluminum powder is prepared by immersing finely divided aluminum in a weak alkali solution maintained at a temperature of 50.degree. C. to the boiling point of the solution and having a pH of 8 to 12, said solution containing a salt of iron, nickel, cobalt, zinc or copper, and at least one aliphatic amine having a chelating ability for the metal salt, to form a composite film which consists of a hydrated aluminum oxide and a hydrated oxide of the metal, and separating the aluminum from the solution.

Process for preparing colored aluminum powder

Growing community of inventors

Sakai, Japan

Minoru Hasegawa