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. 03, 2013
Filed:
Oct. 20, 2010
Yoshiaki Seki, Hitachinaka, JP;
Kimihiko Ishii, Hitachinaka, JP;
Mitsuhiko Ueda, Hitachinaka, JP;
Katsutoshi Shimizu, Hitachinaka, JP;
Hiroshi Suzuki, Hitachinaka, JP;
Yoshiaki Seki, Hitachinaka, JP;
Kimihiko Ishii, Hitachinaka, JP;
Mitsuhiko Ueda, Hitachinaka, JP;
Katsutoshi Shimizu, Hitachinaka, JP;
Hiroshi Suzuki, Hitachinaka, JP;
Hitachi High-Technologies Corporation, Tokyo, JP;
Abstract
A liquid sample introducing apparatus capable of executing a process with high reliability and high speed is realized. An injection valve includes a sample storage loop connected to a mobile phase flow passage for supplying a sample to a detector of a liquid chromatograph apparatus. A sample is sucked in a needle through a valve and a pipe by a syringe, being introduced to the sample storage loop, being supplied to the mobile phase flow passage. A washing solution from a washing solution bottle is supplied to the needle by a washing unit through the valve and the pipe to wash the inner wall of the needle. The washing solution from the washing solution bottle is supplied to a washing tank by the washing unit through the valve and a pipe to wash the external wall of the needle in the washing tank.