Matsushita Electric Industrial Co., Ltd.

Yasuhiko Machida

Takeshi Takeda

Satoshi Sekido

Sohji Tsuchiya

Akira Taomoto

Yasuo Kudoh

Shiro Asakawa

Kazutoshi Ikegaya

Katsuhiro Nichogi

Tokio Yamadaya

Elements comprising a non-oriented substrate and a thin film of a compound of the following general formula

Elements comprising a film of a perovskite compound whose

A modulatory molecular element includes a chain of molecules A and molecules Bi. The molecules A alternate with the molecules Bi and are bound to the adjacent molecules Bi. The molecules A are selected from common molecules. The molecules Bi are selected from at least two different types of molecules. The molecules Bi are changeable from first stable states to second stable states in response to applied stimulative energy. The molecules Bi return from the second stable states to the first stable states at different relaxation time constants dependent on the types of the molecules Bi when the applied stimulative energy is removed. The chain has a physical property which depends on whether or not all the molecules Bi are in the second stable states.

Modulatory molecular element

A heat storage material is described which comprises a mixture of sodium sulfate decahydrate or sodium thiosulfate pentahydrate, and urea. The mixing ratio by mole of the sulfate decahydrate to urea is in the range of 1:1 to 1:3 and the mixing ratio by mole of the thiosulfate pentahydrate to urea is in the range of 1:2 to 1:8.

Heat storage materials

An alloy represented by the general formula Ti.sub.x-y Zr.sub.y Cr.sub.2-z Mn.sub.z, where 1 .ltoreq. x .ltoreq. 1.3, 0 &lt; y .ltoreq. 1, and 0 &lt; z &lt; 2. This alloy readily forms complex metal hydrides at low hydrogen pressures and can absorb a large quantity of hydrogen. The absorbed hydrogen can readily be liberated at room temperature.

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Yokohama, Japan

Yasuhiko Machida