Abstract: A production method of a fuel cell electrode catalyst includes: a supporting step of causing platinum and yttrium to be supported on a carrier using a nonaqueous solvent; and an acid treatment step of performing an acid treatment on the carrier on which platinum and yttrium are supported.

Abstract: A production method of a fuel cell electrode catalyst includes: a supporting step of causing platinum and yttrium to be supported on a carrier using a nonaqueous solvent; and an acid treatment step of performing an acid treatment on the carrier on which platinum and yttrium are supported.

Abstract: An ore containing crystal water (bond water) is heated to dehydrate the crystal water in the form of water vapor, thereby rendering the ore porous to generate a porous ore. Next, the porous ore is forced into contact with a dry-distilled gas (organic gas) obtained by dry-distillation of an organic substance such as wood and the like or an organic liquid such as tar and the like. An organic compound such as tar and the like contained in the dry-distilled gas or organic liquid adheres to the surface of the porous ore. Next, the porous ore adhered with an organic compound is heated at 500° C. or higher, to generate an ore in which a part of an oxide of an element such as iron and the like contained is reduced by carbon in the organic compound.

Abstract: An ore containing crystal water (bond water) is heated to dehydrate the crystal water in the form of water vapor, thereby rendering the ore porous to generate a porous ore. Next, the porous ore is forced into contact with a dry-distilled gas (organic gas) obtained by dry-distillation of an organic substance such as wood and the like or an organic liquid such as tar and the like. An organic compound such as tar and the like contained in the dry-distilled gas or organic liquid adheres to the surface of the porous ore. Next, the porous ore adhered with an organic compound is heated at 500° C. or higher, to generate an ore in which a part of an oxide of an element such as iron and the like contained is reduced by carbon in the organic compound.

Abstract: It is an object of the invention to measure the precise color characteristic of an image pickup machine and accurately reproduce a subject in an image display unit. A color characteristic measurement apparatus which has a test chart (1) as a subject of an image pickup machine (6), a hole (2) made in the test chart (1), a black box (3) placed on a rear face of the test chart (1) and formed on an inner surface in black, and a light output section (4) placed in the black box (3) at a position where the light output section (4) can be observed through the hole (2) from the outside.

Abstract: It is an object of the invention to measure the precise color characteristic of an image pickup machine and accurately reproduce a subject in an image display unit. A color characteristic measurement apparatus which has a test chart (1) as a subject of an image pickup machine (6), a hole (2) made in the test chart (1), a black box (3) placed on a rear face of the test chart (1) and formed on an inner surface in black, and a light output section (4) placed in the black box (3) at a position where the light output section (4) can be observed through the hole (2) from the outside.

Abstract: It is an object of the invention to measure the precise color characteristic of an image pickup machine and accurately reproduce a subject in an image display unit.