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:
Jul. 30, 2013
Filed:
Jun. 26, 2008
Katsutoshi Shimizu, Hitachinaka, JP;
Masahito Ito, Hitachinaka, JP;
Kimihiko Ishii, Hitachinaka, JP;
Yoshihiro Nagaoka, Ishioka, JP;
Kisaburo Deguchi, Sapporo, JP;
Takefumi Yokokura, Kasama, JP;
Katsutoshi Shimizu, Hitachinaka, JP;
Masahito Ito, Hitachinaka, JP;
Kimihiko Ishii, Hitachinaka, JP;
Yoshihiro Nagaoka, Ishioka, JP;
Kisaburo Deguchi, Sapporo, JP;
Takefumi Yokokura, Kasama, JP;
Hitachi High-Technologies Corporation, Tokyo, JP;
Abstract
Both a column having high-pressure resistance and capable of performing high-speed separation and analysis even with a small flow rate and a liquid chromatograph apparatus using the column are provided. A separation column according to the present invention has a monolithic rod being arranged in the center, being made of a porous material, and having a circular cross section, a filler layer arranged such that it encircles a circumferential surface of the monolithic rod, and a cylindrical support medium arranged outside the filler layer. The filler layer is formed by filling a tube-like gap between the monolithic rod and the support medium with particles or beads.