Fitzpatrick, Cella, Harper & Scinto
Apparatus for measuring a test specimen
 An apparatus is so constructed as to measure a specific substance in a test specimen by the degree of the aggregation of carrier particles in a reaction solution in which the test specimen is mixed with the carrier particles which carry a substance specifically binding to the specific substance. The apparatus includes a substrate having comb-shaped electrodes mounting the reaction solution and amplifier and alternating oscillator for displaying a variable voltage to the comb-shaped electrodes. The test specimen measuring apparatus having the structure accelerates the aggregation of the reaction solution by applying an alternating voltate to the comb-shaped electrodes in a state that the reaction solution is being mounted on the substrate, and detects the spatial spectrum of the comb-shaped electrodes on which the reaction solution is mounted, thus performing the qualitative or quantitative detection of the presence of the substance in the test specimen. 
Canon Kabushiki Kaisha
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additional inventional inventional additional inventional inventional
Kazumi Toshikazu Takeshi Hiroaki Hidehito Matsuomi
Tanaka Ohnishi Miyazaki Hoshi Takayama Nishimura