Mitsubishi Denki Kabushiki Kaisha

S.e., Inc.

Toshihiro Oishi

Yuichi Sakamoto

Tsutomu Takizawa

Mineo Morimoto

Kazuo Chimura

Yoshiharu Sawaki

According to one embodiment, a magnesium-recycling hydrogen generation system includes: a by-product acquisition unit that separates a by-product from a post-reaction solution, which is a solution after reacting with a hydrogen generation material containing a hydrogen-containing magnesium compound that generates hydrogen via a reaction with the solution, to acquire the by-product including more than one type of oxygen-containing magnesium compound that contains oxygen produced by the reaction, a raw material production unit that reacts the by-product with a halogen-containing substance containing halogen and other atoms than the halogen to produce a raw material containing magnesium halide, a hydrogen generation material production unit that reduces the raw material with plasma containing hydrogen to produce the hydrogen generation material, and a hydrogen generator that reacts the hydrogen generation material with the solution to generate hydrogen.

Hydrogen generation system, power generation system, hydrogen generation method, and power generation method

A projector has a first casing A (including a first part and a second part ) and a second casing B (including a third part ). The second casing B is moved between an enlarging position where the second casing B is protruded from the first casing A and a reducing position where the second casing B is retracted into the first casing A. As the second casing B moves to the enlarging position, the distance between the exhaust ports and the exhaust fan increases, so that the wind noise is restricted. As the second casing B moves to the reducing position, the exhaust ports are concealed in the first casing A, so that the entry of the dust or the like into the projector is prevented.

Projector

Growing community of inventors

Tokyo, Japan

Toshihiro Oishi