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:
Jul. 19, 2016
Filed:
Sep. 04, 2013
Fujitsu Limited, Kawasaki-shi, Kanagawa, JP;
Ryozo Takasu, Atsugi, JP;
FUJITSU LIMITED, Kawasaki, JP;
Abstract
An atmospheric environment measuring apparatus including a filter disposed in a casing and adsorbing a component of a gas to be detected; a first mass sensor disposed in the casing between an inlet of the casing and the filter, including a first piezoelectric vibration element and changing a resonance frequency according to a mass of a substance adhered on a surface of the first piezoelectric vibration element; a second mass sensor disposed in a stage following the filter in the casing, including a second piezoelectric vibration element and changing a resonance frequency according to a mass of a substance adhered on a surface of the second piezoelectric vibration element; and a fan disposed in a stage following the second mass sensor in the casing and fluidizing atmosphere from the inlet toward an outlet of the casing.