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:
Apr. 27, 2021
Filed:
Nov. 27, 2017
Applicant:
Hitachi, Ltd., Tokyo, JP;
Inventors:
Yasuaki Takada, Tokyo, JP;
Shun Kumano, Tokyo, JP;
Masuyuki Sugiyama, Tokyo, JP;
Hisashi Nagano, Tokyo, JP;
Tatsuo Nojiri, Tokyo, JP;
Hiroki Mizuno, Tokyo, JP;
Yuichiro Hashimoto, Berkshire, GB;
Assignee:
Hitachi, Ltd., Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01N 1/38 (2006.01); G01N 1/40 (2006.01); G01N 1/36 (2006.01); G01N 33/00 (2006.01); G01N 1/28 (2006.01); G01N 1/02 (2006.01); G01N 35/00 (2006.01);
U.S. Cl.
CPC ...
G01N 1/38 (2013.01); G01N 1/28 (2013.01); G01N 1/36 (2013.01); G01N 1/40 (2013.01); G01N 33/0011 (2013.01); G01N 2001/022 (2013.01); G01N 2001/2893 (2013.01); G01N 2035/00188 (2013.01);
Abstract
An object of the invention is to improve uniformity of a standard sample used for evaluating a gas flow type analysis system. The invention includes weighing a background into a container; adding a sample solution to the background; drying the sample solution; adding a solvent that can dissolve the sample into the container; and drying the solvent added to the container. The invention is also characterized in that the solvent is an organic solvent, in particular, acetone.