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. 02, 2014
Filed:
Nov. 20, 2008
Kentaro Ishii, Kanagawa, JP;
Masashi Higasa, Kanagawa, JP;
Shingo Hiramatsu, Kanagawa, JP;
Toray Industries, Inc., , JP;
Abstract
A liquid-feeding chip for feeding a liquid utilizing the action of centrifugal force and gravity by rotating the chip around an axis of rotation, includes a first storage tank (-) into which the liquid can be introduced when rotation of the chip is stopped, and two or more liquid-feeding units arranged in a plurality of levels adjacent to each other, each liquid-feeding unit (U-U-U-) being composed of a first holding tank (---), a second holding tank (---) positioned in the direction of gravity with respect to the first holding tank, and a channel B (B-B-B-) which extends from the first holding tank in the direction of gravity and which connects the first holding tank and the second holding tank, the first holding tank at a first level being connected with a channel A (A-) which extends from the first storage tank toward an outer circumferential side. In the liquid-feeding chip, the adjacent liquid-feeding units are connected by a channel C (C-C-) which extends from the second holding tank of the liquid-feeding unit at an upper level to an outer circumferential side during rotation, and which is in communication with the first holding tank of the liquid-feeding unit at a lower level.