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:
Sep. 03, 2013
Filed:
Jun. 21, 2010
Applicants:
Keiko Nakano, Yokohama, JP;
Shinichi Taniguchi, Tokyo, JP;
Inventors:
Keiko Nakano, Yokohama, JP;
Shinichi Taniguchi, Tokyo, JP;
Assignee:
Hitachi, Ltd., Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G01N 15/06 (2006.01);
U.S. Cl.
CPC ...
Abstract
The same phenomenon as the phenomenon that a component of feed water is adsorbed to the surface of the membrane is used to assess water quality. Specifically, a sensor whose surface has a thin layer made of the same material as the material of the surface of the membrane and which includes a measurement unit such as a quartz crystal sensor that measures an adsorption rate on the thin layer is used to assess an effect of the water quality of the feed water on the membrane on the basis of a change in the adsorption rate on the sensor surface.