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. 19, 2017
Filed:
Nov. 28, 2012
Applicant:
Shimadzu Corporation, Kyoto-shi, Kyoto, JP;
Inventors:
Hiroomi Goto, Kyoto, JP;
Tsunehiro Inoue, Kyoto, JP;
Takahiro Mori, Kyoto, JP;
Hirohisa Abe, Kyoto, JP;
Assignee:
SHIMADZU CORPORATION, Kyoto-shi, JP;
Primary Examiner:
Int. Cl.
CPC ...
G01N 30/00 (2006.01); G01N 30/36 (2006.01); G05D 16/20 (2006.01); F16K 31/00 (2006.01); G05D 7/06 (2006.01); B01D 15/40 (2006.01); G01N 30/32 (2006.01);
U.S. Cl.
CPC ...
G01N 30/36 (2013.01); B01D 15/40 (2013.01); F16K 31/004 (2013.01); G01N 30/32 (2013.01); G05D 7/0641 (2013.01); G05D 16/202 (2013.01);
Abstract
A supercritical fluid chromatograph includes a supercritical flow path, a mobile phase supply section for supplying a mobile phase containing liquid carbon dioxide, a sample introduction section, a sample separation section, a detector, and a pressure control valve. A valve post-stage flow path is connected to a fluid outlet of the pressure control valve, and the inside of the valve post-stage flow path is maintained by pressure maintaining means at a pressure by which a mobile phase from the fluid outlet of the pressure control valve is not vaporized.