Hitachi, Ltd.

Hitachi High-tech Corporation

Mariko Miyazaki

Kazuhiro Noda

Akihiro Miyauchi

Yuichi Iwase

Tatsuya Sakai

Eiichiro Takada

Masafumi Miyake

Takushi Miyakawa

Mitsuhiro Matsuzawa

Nobuhiro Tsukada

Haruyoshi Yamamoto

Yuka Miyake

An object of the present invention is to provide an automatic analyzer capable of efficiently performing stirring by a discharge operation. In the automatic analyzer according to the present invention, by lifting the probe while discharging a specimen or a reagent alter the probe starts to discharge the specimen to a vessel, as a height of a liquid level of the liquid in the vessel, which is discharged from the probe, is gradually raised, a distance between the liquid level in the vessel and a tip end of the probe is gradually increased.

Automatic analyzer

Structures are formed in a shape protruding from a wing surface, and a plurality of riblets are formed in a shape depressed from the wing surface. A first cross section obtained by cutting the structure by a flat face that is parallel to a flow and perpendicularly intersects with the wing surface has an inclined side that extends from a point on the wing surface to a top that is a point apart from the wing surface. An inter-structure flow channel is formed between two adjacent structures among the plurality of structures. The area of a face in one of the two structures and the area of a face in the other structure with which a fluid flowing in the inter-structure flow channel comes into contact are different from each other. Accordingly, peeling of the flow can be suppressed and the frictional resistance of the flow can be decreased.

Fluid apparatus

Growing community of inventors

Tokyo, Japan

Mariko Miyazaki