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. 15, 2014
Filed:
Dec. 19, 2007
Masaki Kanai, Kyoto, JP;
Takahiro Nishimoto, Kyoto, JP;
Masakazu Akechi, Kyoto, JP;
Nobuhiro Hanafusa, Kyoto, JP;
Masaki Kanai, Kyoto, JP;
Takahiro Nishimoto, Kyoto, JP;
Masakazu Akechi, Kyoto, JP;
Nobuhiro Hanafusa, Kyoto, JP;
Shimadzu Corporation, Kyoto, JP;
Abstract
A dispensing device for reducing the dead volume of a liquid sample includes a main channel connected to a sample inlet and sample outlet, and branch channels connected to the main channel. Each branch channel is connected to a different liquid reservoir. High inflow-withstanding pressure sections are provided in the main channel between the branch channels and between the branch channel and the sample outlet. Each high inflow-withstanding pressure section has a channel inner wall forming a contact angle of 90° or larger with a liquid sample. A liquid sample enters the main channel through the sample inlet, reaches a branch point between the first branch channel and the main channel flows into the first branch channel and the liquid reservoir, and then passes through the high inflow-withstanding pressure section to a branch point between the next branch channel and the main channel.