Agency of Industrial Science and Technology

National Institute of Advanced Industrial Science and Technology

Shinko Kosen Kogyo Kabushiki Kaisha

Hidetoshi Ueno

Akira Kitahara

Sumio Nagata

Michiru Sakamoto

Shigeru Akiyama

Kazuki Yoshimura

Kazuhisa Shobu

Kazuo Kobayashi

Kazuki Tajima

Ichitaro Ogawa

Yasusei Yamada

Hisayoshi Yoshida

Tsuyoshi Hagio

Shanhu Bao

Kenji Miyazaki

Kazuo Morimoto

Hisatoshi Hirai

Masao Itoh

Koji Imagawa

Tooru Nishikawa

Tatsuo Tabaru

A switchable mirror element includes a switchable layer having a chromic property enabling the switchable layer to be reversibly changed from a transparent state by hydrogenation and a mirror state by dehydrogenation, and a catalytic layer disposed on the switchable layer and configured to promote hydrogenation or dehydrogenation in the switchable layer. The switchable layer includes an alloy of one or more metals from calcium, strontium, and barium, and magnesium.

Switchable mirror element, and switchable mirror component and insulating glass each incorporating the switchable mirror element

High temperature oxidation resistant alloy materials and method of producing the same

A process for making a porous mass of a metal of iron- or titanium-group comprises steps of forming a sinter of solvent-soluble particles, pressing in a molten metal of the iron- or titanium- group into open interstices in the sinter, and eluting the particles from the composite of the sinter and metal. Solvent-soluble magnesia particles whose surface is either covered or not with a film of boric anhydride or solvent-soluble calcia particles whose surface is either covered or not with film of calcium chloride are sintered and machined into the desired shape. The formed sinter is put in a case of a heat-insulating material that can withstand the melting temperature of a metal of iron- or titanium-group. After being heated to a given temperature together with the case, the sinter is immediately put in a metal mold where a molten metal of iron- or titanium-group is pressed into open interstices in the sinter. Then, only the particles are eluted from the sinter-metal composite by a solvent.

Process for making porous masses of iron, nickel, titanium, and other

A foamed metal which has an apparent specific gravity of from 0.2 to 0.8 and comprises an aggregate of polygonal closed cells of from 2 to 10 mm in average diameter. The foamed metal is not only light in weight, free of directionality and structurally strong but also excellent in sound-absorbing and electromagnetic shielding properties, and is useful as constructional, structural or functional material. A method for producing the foamed material comprises adding calcium as a thickening agent to molten aluminum or alloy thereof in an amount of from 0.2 to 8% by weight, followed by agitating to adjust the viscosity of the melet, then adding from 1 to 3% by weight of powdered titanium hydride as a foaming agent to the melt, and agitating the melt to effect foaming.

Foamed metal and method of producing same

Disclosed herein is a heat resistant vaned stirrer for use in a high temperature atmosphere. To endure stirring operations in high temperature molten metals of 300.degree.-1200.degree. C., the stirrer vanes are formed of a carbon-ceramics composite material which is produced from coke powder blended with 10-50% by volume of ceramics powder and which has a bending strength higher than 200 kg/cm.

Vaned stirrer for use in high temperature atmosphere

Growing community of inventors

Tosu, Japan

Hidetoshi Ueno