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:
Jun. 04, 2019
Filed:
Oct. 03, 2013
Hitachi, Ltd., Chiyoda-ku, Tokyo, JP;
Kei Takenaka, Tokyo, JP;
Shigenori Togashi, Tokyo, JP;
Hitachi, Ltd., Tokyo, JP;
Abstract
An airborne substance sensing device is capable of blocking fluorescence that is not from an airborne substance and detecting faint fluorescence of an airborne substance with a high degree of accuracy through the use of a cartridge having an introduction plate in which micropores are formed through which a gas including an airborne substance can pass. A transparent collection plate opposes the introduction plate, and the airborne substance can be made to collide on the plate and be collected through the collision of the gas having passed through the micropores. In a main body, the introduction and collection plates are disposed in parallel, and a flow path for guiding the gas including the airborne substance to the micropores is formed. An opaque mask covers the collection plate and is provided with an opening window through which light can pass at a position corresponding to a collection area.