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. 18, 2025
Filed:
Dec. 03, 2021
Applicant:
Shimadzu Corporation, Kyoto, JP;
Inventors:
Assignee:
SHIMADZU CORPORATION, Kyoto, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G01N 30/88 (2006.01); G01N 30/02 (2006.01);
U.S. Cl.
CPC ...
G01N 30/88 (2013.01); G01N 2030/027 (2013.01);
Abstract
A pH management system of a liquid chromatograph includes a pH meter that measures a pH value of a mobile phase in the liquid chromatograph, and a warner that presents a warning in a case where it is determined that a pH value measured in the pH meter is different from a set pH value, or that the pH value measured in the pH meter deviates from the set pH value and an error rate exceeds a predetermined error rate, when the pH value measured in the pH meter and the set pH are compared to each other.