Patent ID: 7785534

Claim:
An automatic analyzer comprising: a plurality of reagent containers each having a top surface in which an opening is formed; a reagent cold-storage chamber for holding the plurality of reagent containers arranged in a plurality of circular rows in a concentric manner; a lid formed on an upper side of the reagent cold-storage chamber; a reagent dispensing device sucking a reagent from one of the plurality of the reagent containers held in the reagent cold-storage chamber through the opening; a reagent ID arranged on the top surface of each of the plurality of the reagent containers, storing information including information of the reagent in each of the plurality of the reagent containers; a plurality of reading/writing mechanisms for reading information recorded on the reagent ID of each of the plurality of the reagent containers, the reading/writing mechanisms arranged on said lid of the reagent cold-storage chamber, one of the plurality of reading/writing mechanisms being arranged above each of the plurality of the circular rows to read information stored on the reagent IDs of the plurality of the reagent containers at the same time; and a detector for detecting a chemical reaction between the reagent and a sample.