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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.:

US 9339218 B1

PDFFull Text
Date of Patent:
May. 17, 2016

Filed:

Jul. 11, 2014

Concentration measuring device

Applicant:

Horiba, Ltd., Kyoto-shi, Kyoto, JP;

Inventors:

Tomoyuki Murata, Kyoto, JP;

Takao Minai, Kyoto, JP;

Takaaki Yada, Kyoto, JP;

Assignee:

HORIBA, Ltd., Kyoto-shi, JP;

Attorney:

Alleman Hall McCoy Russell & Tuttle LLP

Primary Examiner:

Michael P Stafira

Int. Cl.
CPC ...
G01N 33/48 (2006.01); A61B 5/145 (2006.01); A61B 5/1486 (2006.01); B01L 3/00 (2006.01); C12Q 1/00 (2006.01); G01N 33/66 (2006.01); G01N 27/327 (2006.01); G01N 21/03 (2006.01);
U.S. Cl.
CPC ...
A61B 5/14532 (2013.01); A61B 5/1486 (2013.01); B01L 3/5023 (2013.01); C12Q 1/001 (2013.01); G01N 33/66 (2013.01); B01L 2300/045 (2013.01); B01L 2300/0645 (2013.01); B01L 2300/0654 (2013.01); B01L 2300/0681 (2013.01); B01L 2300/0816 (2013.01); B01L 2300/0887 (2013.01); G01N 27/3273 (2013.01); G01N 2021/035 (2013.01);
Abstract

A concentration measuring device having a spot-application region, and a configuration capable of measuring the concentration of an object component in the sample liquid dropped on the spot-application region, the concentration measuring device including: a light irradiation device, which is provided on a side below the spot-application region, for emitting an irradiation light having a wavelength absorbable by a coloring matter in the dropped sample liquid. The irradiation light passes through the spot-application region, thereby the sample liquid dropped on the spot-application region is irradiated with the irradiation light from the side below the spot-application region. As a result, a non-covered region in the spot-application region can be easily found by visual observation. The spot-application region is composed of, for example, a through hole formed on the supporting film and a separation membrane that blocks the through hole.

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