公开(公告)号：US10823695B2

公开(公告)日：2020-11-03

申请号：US15111857

申请日：2015-01-22

Applicant: Hitachi High-Technologies Corporation

Inventor： Atsushi Kishioka ,  Yu Ishige ,  Tetsuyoshi Ono

IPC: G01N27/333 ,  G01N27/27 ,  G01N33/49 ,  F16J15/02 ,  G01N27/413

Abstract: There is provided an electrolyte measuring device that can decrease a liquid amount used for measurement, in which stable sealing can be provided in connecting passages of ion selective electrodes to each other with no gap, while maintaining high measurement accuracy of an existing ion selective electrode, and a residing sample liquid can be greatly decreased. In a flow-type ion selective electrode, a sealing member is used, which can be brought into intimate contact with a passage connecting unit to near a passage hole. A gap regulating member is provided to keep a gap between the electrodes constant and to prevent the sealing member from being excessively pressed. An electrode case has a structure suitable for the sealing member for allowing the alignment and holding of the sealing member.

公开(公告)号：US10018585B2

公开(公告)日：2018-07-10

申请号：US14888271

申请日：2014-04-10

Applicant: Hitachi High-Technologies Corporation

Inventor： Yu Ishige ,  Masao Kamahori ,  Atsushi Kishioka ,  Tetsuyoshi Ono ,  Masafumi Miyake

IPC: G01N27/413 ,  G01N27/333 ,  G01N33/49 ,  G01N27/02 ,  G01N27/04 ,  G01N27/403 ,  G01N27/416

CPC classification number: G01N27/413 ,  G01N27/021 ,  G01N27/04 ,  G01N27/333 ,  G01N27/4035 ,  G01N27/4166 ,  G01N33/492

Abstract: An electrolyte concentration measuring apparatus is provided with: a plurality of ion selective electrodes and one reference electrode; a sample introduction unit that introduces a sample solution to the plurality of ion selective electrodes and the reference electrode; a potential measuring unit that measures a voltage between the plurality of ion selective electrodes and the reference electrode; and a resistance measuring unit that measures a direct-current resistance of the plurality of ion selective electrodes.

公开(公告)号：US09658153B2

公开(公告)日：2017-05-23

申请号：US14363366

申请日：2012-10-30

Applicant: HITACHI HIGH-TECHNOLOGIES CORPORATION

Inventor： Yusuke Goto ,  Masao Kamahori ,  Yu Ishige ,  Hiroshi Sasaki ,  Hideyuki Akiyama ,  Shintaro Kubo

IPC: G01N21/00 ,  G01N21/31 ,  G01N30/74 ,  G01N21/05 ,  G01N1/00 ,  G01N21/3577 ,  G01N21/03

CPC classification number: G01N21/31 ,  G01N1/00 ,  G01N21/0303 ,  G01N21/05 ,  G01N21/3577 ,  G01N30/74 ,  G01N2021/0346 ,  G01N2021/052

Abstract: To prevent lowering of sensitivity of a flow cell based on total reflection of light at an outer face of a glass capillary at a joint part with a pipe, the flow cell includes, at joint parts with a pipe 605 to introduce solution to a glass capillary 601 and with a pipe to discharge solution from the capillary, an inorganic material layer 602 that reflects measurement light to modify the outer face of the glass capillary as well as a reinforcement layer 711 to modify the surface thereof.

公开(公告)号：US20140332674A1

公开(公告)日：2014-11-13

申请号：US14363366

申请日：2012-10-30

Applicant: HITACHI HIGH-TECHNOLOGIES CORPORATION

Inventor： Yusuke Goto ,  Masao Kamahori ,  Yu Ishige ,  Hiroshi Sasaki ,  Hideyuki Akiyama ,  Shintaro Kubo

IPC: G01N21/31 ,  G01N1/00

CPC classification number: G01N21/31 ,  G01N1/00 ,  G01N21/0303 ,  G01N21/05 ,  G01N21/3577 ,  G01N30/74 ,  G01N2021/0346 ,  G01N2021/052

Abstract: To prevent lowering of sensitivity of a flow cell based on total reflection of light at an outer face of a glass capillary at a joint part with a pipe, the flow cell includes, at joint parts with a pipe 605 to introduce solution to a glass capillary 601 and with a pipe to discharge solution from the capillary, an inorganic material layer 602 that reflects measurement light to modify the outer face of the glass capillary as well as a reinforcement layer 711 to modify the surface thereof.

Abstract translation: 为了防止基于在与管的接合部分处的玻璃毛细管的外表面处的光的全反射降低流动池的灵敏度，流动池在与管605的接合部分处包括将溶液引入玻璃毛细管 601，并且具有用于从毛细管排出溶液的管，反射测量光以改变玻璃毛细管的外表面的无机材料层602以及改进其表面的加强层711。

公开(公告)号：US09885683B2

公开(公告)日：2018-02-06

申请号：US15021400

申请日：2014-07-28

Applicant: Hitachi High-Technologies Corporation

Inventor： Yu Ishige ,  Masao Kamahori ,  Tetsuyoshi Ono ,  Yusuke Goto

IPC: G01N27/333 ,  G01N27/30

CPC classification number: G01N27/3335 ,  G01N27/308 ,  G01N27/333

Abstract: To enhance the potential stability of a solid-electrode-type ion-selective electrode and reduce individual variations, the present invention is provided with an ion-sensitive membrane adapted to be in contact with a measurement solution, a mixture of graphite and liquid oil that is in contact with the ion-sensitive membrane, and a conductor that is in contact with the mixture of graphite and liquid oil.