Abstract: A display device includes a condition judgment unit which judges whether a received email satisfies a predetermined condition. Moreover, the display device includes a data deletion unit which deletes attached data in an email from a recording unit if the condition judgment unit detects that the email does not satisfy the predetermined condition. Moreover, the display device includes a condition registration unit which receives a condition for storing attached data. The condition registration unit receives a transmission source email address of an email which a user desires to store. When an email is received by the email reception unit, the condition judgment unit judges whether the transmission source email address coincides with a part or whole of the reception-enabled address. If yes, the attached data is stored. Otherwise, the data is deleted.

Abstract: An immunochromatography which comprises chromatographically moving a sample together with or followed by labelling fine particles in a chromatographic medium having at least one reaction site having immobilized thereat a reagent bindable to a substance to be detected in a sample, to contact the above sample and the labelling fine particles with the above reaction site, and detecting the substance to be detected by use of the phenomenon that when the above substance to be detected is present in the sample the labelling fine particles are specifically bound to the above immobilized reagent via the substance to be detected at the above reaction site, to thereby capture the substance to be detected on the chromatographic medium, characterized in that the above labelling fine particles are sensitized dyed particles obtained by sensitizing, with a material bindable to the above substance to be detected, labelling dyed particles obtained by dyeing latex particles of a synthetic high polymer, said labelling dyed part