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. 01, 2008
Filed:
Mar. 16, 2005
Yoshiyuki Kanai, Tokyo, JP;
Kazumasa Ibata, Tokyo, JP;
Shigeki Shoji, Tokyo, JP;
Masaki Takechi, Tokyo, JP;
Shingo Masumoto, Tokyo, JP;
Toshio Kurihara, Tokyo, JP;
Yoshiyuki Kanai, Tokyo, JP;
Kazumasa Ibata, Tokyo, JP;
Shigeki Shoji, Tokyo, JP;
Masaki Takechi, Tokyo, JP;
Shingo Masumoto, Tokyo, JP;
Toshio Kurihara, Tokyo, JP;
Yamatake Corporation, Tokyo, JP;
Abstract
Very small projections (-) are arranged on a mirror surface (-) of a mirror (). The shape of a projection (-) is not limited to a circular cone, but it can be a hollow-cylindrical shape, semispherical shape, or square prism shape, and also, it can be a polyhedron with many faces. With a reduction in temperature of the mirror (), water vapor contained in a gas to be measured condenses on the mirror surface (-) of the mirror (). In this case, because of the very small projections (-) on the mirror surface (-), the condensation is promoted by the projections (-) serving as the cores. This facilitates condensation even at low dew points and improves response. Further, the size of condensation products does not easily vary relative to variation in flow speed of the gas to be measured, and this makes equilibrium of condensation less likely to break, increasing measurement accuracy.