The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jan. 30, 2018
Filed:
Apr. 05, 2013
Nippon Telegraph and Telephone Corporation, Tokyo, JP;
Yuzuru Iwasaki, Atsugi, JP;
Tsutomu Horiuchi, Atsugi, JP;
Michiko Seyama, Atsugi, JP;
Toru Miura, Atsugi, JP;
Tsuneyuki Haga, Atsugi, JP;
Jun-ichi Takahashi, Atsugi, JP;
Tsuyoshi Hayashi, Atsugi, JP;
Nippon Telegraph And Telephone Corporation, Tokyo, JP;
Abstract
A flow rate measurement apparatus includes a light oscillator; a thin metallic film which causes surface plasmon resonance by light output from the light oscillator; a focusing unit which fixes the thin metallic film and converts the output light of the light oscillator into incident light having a plurality of incident angles to focus the incident light at a location of a focal line in a straight line shape on the thin metallic film; a measurement part having antibody fixed areas to which an antibody is fixed and reference areas to which an antibody is not fixed, the antibody fixed areas and the reference areas being alternately arranged at a location along the focal line location on the thin metallic film; a light receiver which receives reflected light, at the focal line location, of the output light by surface plasmon resonance occurring at the focal line location, at each of the plurality of incident light angles; an SPR angle calculator which obtains a temporal change of an SPR angle in each of the antibody fixed areas and the reference areas in the measurement part; and a flow rate operation unit which calculates the flow rate of the sample flowing in the flow cell based on the temporal change of the SPR angle obtained by the SPR angle calculator.