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:
May. 06, 2014
Filed:
Dec. 07, 2011
Takahiro Matsumoto, Yokohama, JP;
Fumio Kubo, Yokohama, JP;
Koichi Okamoto, Fukuoka, JP;
Yasuyuki Kawakami, Abiko, JP;
Takahiro Matsumoto, Yokohama, JP;
Fumio Kubo, Yokohama, JP;
Koichi Okamoto, Fukuoka, JP;
Yasuyuki Kawakami, Abiko, JP;
Stanley Electric Co., Ltd., Tokyo, JP;
Abstract
A particle detector includes a light source, and a metal layer having an incident/reflective surface and a photoelectric surface opposing the incident/reflective surface. Incident light from the light source reaches the incident/reflective surface to excite near-field surface plasmon resonance photons at the photoelectric surface. A particle deposited on the photoelectric surface of the metal layer changes the near-field surface plasmon resonance photons to far-field scattered light. The particle detector further includes a scattered light detecting unit, provided above the photoelectric surface of the metal layer, for detecting the far-field scattered light.