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:
Jan. 08, 2013
Filed:
Apr. 06, 2010
Takashi Gomi, Hitachinaka, JP;
Ryoji Inaba, Hitachinaka, JP;
Taro Nakazawa, Hitachinaka, JP;
Takeshi Ohura, Hitachinaka, JP;
Mari Kotoura, Hitachinaka, JP;
Takashi Gomi, Hitachinaka, JP;
Ryoji Inaba, Hitachinaka, JP;
Taro Nakazawa, Hitachinaka, JP;
Takeshi Ohura, Hitachinaka, JP;
Mari Kotoura, Hitachinaka, JP;
Hitachi High-Technologies Corporation, Tokyo, JP;
Abstract
Bubbles can be removed regardless of an individual difference of a pump to fill an electrophoresis medium into a capillary. Of flow passages formed between an inner side surface of a container for accommodating the electrophoresis medium and a side surface of a plunger, one of the flow passages causing an electrophoresis medium to be easily stagnant is formed to have the cross-sectional area larger than the cross-sectional area of the other flow passage on the opposite side. In other words, the flow passage portion causing the electrophoresis medium to be easily stagnant is formed in such a manner as to increase a flow amount of the electrophoresis medium. This can eliminate a region having an extremely small amount of electrophoresis medium flow in the pump.