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. 26, 2010
Filed:
Nov. 30, 2007
Applicants:
Ryo Kuroda, Kawasaki, JP;
Tomohiro Yamada, Yokohama, JP;
Masaya Ogino, Kawasaki, JP;
Inventors:
Assignee:
Canon Kabushiki Kaisha, Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G01N 21/55 (2006.01);
U.S. Cl.
CPC ...
Abstract
In a chemical sensing apparatus utilizing a surface plasmon resonance in a small aperture formed in a metal thin film or on a surface of a metal fine particle, a capturing substance is disposed in the small aperture or on the surface of the metal fine particle for capturing a target substance. A marker substance, having a size comparable to that of the small aperture or the metal fine particle is combined with the target substance. As a result, a spectral change is increased in the transmitted light or the scattered light, induced by a surface plasmon resonance and resulting from the capture of the target substance.