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:
Nov. 27, 2018
Filed:
Aug. 19, 2016
Applicant:
Horiba, Ltd., Kyoto-shi, Kyoto, JP;
Inventor:
So Takagi, Kyoto, JP;
Assignee:
HORIBA, LTD., Kyoto-shi, Kyoto, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01N 27/36 (2006.01);
U.S. Cl.
CPC ...
G01N 27/36 (2013.01);
Abstract
In order to make it possible to accurately measure the HF concentration in a BHF solution in a low concentration region using a simple structure, there are provided a relationship storage unit that stores relationships between a pH of a BHF solution and an HF concentration, a pH meter that measures the pH of the BHF solution, and a concentration calculation unit that refers to relationships stored in the relationship storage unit, and calculates the HF concentration from the pH values measured by the pH meter.