公开(公告)号：US11143665B2

公开(公告)日：2021-10-12

申请号：US16331594

申请日：2017-09-14

Applicant: HITACHI HIGH-TECHNOLOGIES CORPORATION

Inventor： Akihiro Yasui ,  Gorou Yoshida ,  Yoshiki Muramatsu ,  Isao Yamazaki

IPC: G01N35/02 ,  G01N35/00 ,  G01N35/10 ,  G01N35/04

Abstract: An automatic analyzer (100) includes: a storage unit (21b) that stores various parameters of the automatic analyzer (100) in association with each of elevations used in the automatic analyzers (100), the parameters being optimized for each of the elevations; an input unit (21d) that acquires information of an elevation at which the automatic analyzer (100) is provided; and a controller (21a) that reads the parameters stored in the storage unit (21b) and sets the read parameters to the automatic analyzer (100) based on the elevation acquired by the input unit (21d). As a result, various parameters can be easily adjusted according to a usage environment of the device.

公开(公告)号：US09964558B2

公开(公告)日：2018-05-08

申请号：US15109824

申请日：2015-01-16

Applicant: HITACHI HIGH-TECHNOLOGIES CORPORATION

Inventor： Gorou Yoshida

IPC: G01N35/10 ,  G01N35/00 ,  G01N27/06 ,  G01N33/18

CPC classification number: G01N35/1004 ,  G01N27/06 ,  G01N33/18 ,  G01N35/00613 ,  G01N35/00623 ,  G01N35/1002 ,  G01N35/1009 ,  G01N35/1016 ,  G01N2035/00277 ,  G01N2035/1025 ,  G01N2035/1032

Abstract: Dilution of a sample occurring in a sample dispensing operation is a problem in terms of analysis accuracy. Although the dilution amount is alleviated to some extent by a technique of sucking the sample excessively, the problem may emerge along with a requirement for reducing the sample dispensing amount, an increase of sucking and discharging speed in response to improvement of a processing capability, and an increase of the number of items to be analyzed simultaneously. Provided is an automatic analyzer including a mechanism monitoring conductivity of system water filled in a nozzle and an electro-physical amount such as voltage and capacitance of a probe to enable detection of mixture of the sample and a reagent into the system water and dilution of the sample and the reagent.

公开(公告)号：US11819890B2

公开(公告)日：2023-11-21

申请号：US16468008

申请日：2017-12-08

Applicant: Hitachi High-Technologies Corporation

Inventor： Takushi Miyakawa ,  Gorou Yoshida ,  Yuto Tanaka ,  Kohei Nonaka ,  Takamichi Mori ,  Tetsuji Kawahara

IPC: B08B9/032 ,  G01N35/10

CPC classification number: B08B9/0326 ,  B08B9/0325 ,  G01N35/10 ,  G01N35/1004 ,  B08B2209/005

Abstract: A nozzle cleaner includes: a cleaning tank which stores a cleaning solution; a first conductive member that is disposed to be immersed into the cleaning solution stored in the cleaning tank when the nozzle is cleaned; an ultrasonic wave generating mechanism which is disposed so that at least a part of a second conductive member is immersed into the cleaning solution stored in the cleaning tank when the nozzle is cleaned and generates an ultrasonic vibration in the cleaning solution stored in the cleaning tank; a first voltage control unit which controls a potential applied to the first conductive member; and a second voltage control unit which controls a potential applied to the second conductive member, wherein the first voltage control unit applies a second potential V2 higher than a first potential V1 applied to the nozzle when the nozzle is cleaned to the first conductive member.