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:
Aug. 26, 2025
Filed:
Feb. 28, 2023
Applicant:
Shimadzu Corporation, Kyoto, JP;
Inventor:
Natsuki Iwata, Kyoto, JP;
Assignee:
SHIMADZU CORPORATION, Kyoto, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G01N 30/74 (2006.01); G01N 30/02 (2006.01); G01N 30/86 (2006.01); G01N 33/14 (2006.01);
U.S. Cl.
CPC ...
G01N 30/74 (2013.01); G01N 30/8631 (2013.01); G01N 33/14 (2013.01); G01N 2030/027 (2013.01);
Abstract
A method for analyzing coffee components includes, in this order, preparation step of preparing a sample solution containing coffee components extracted from coffee beans; dilution step of diluting the sample solution; and detection step of detecting the coffee components by performing liquid chromatography on the diluted sample solution. The detection step includes passing the sample solution through a column packed with a packing material having pentafluorophenylpropyl group, and then detecting trigonelline and pyrocatechol in the passed sample solution by a photodiode array ultraviolet-visible absorbance detector.