公开(公告)号：US10300478B2

公开(公告)日：2019-05-28

申请号：US15528287

申请日：2015-09-16

Applicant: COWAY CO., LTD.

Inventor： Sung-Min Moon ,  Jun-Young Lee ,  Sun-Beom Choi ,  Sang-Hyeon Kang ,  Kyung-Seok Kang ,  Won-Keun Son

IPC: B01J47/12 ,  B01D61/46 ,  B01D69/02 ,  B01D69/12 ,  B01D71/26 ,  B01D71/52 ,  B01J39/04 ,  B01J39/18 ,  B01J41/04 ,  B01J41/12 ,  B01D61/44 ,  B01J23/745 ,  B01J35/00 ,  B01J37/02 ,  C02F1/461 ,  C02F1/469 ,  B01J47/016

Abstract: The present invention relates to a bipolar ion exchange sheet and a manufacturing method therefor, the bipolar ion exchange sheet comprising: a cation exchange film comprising a cation adsorption sheet and a cation exchange coating layer formed on one side of the cation adsorption sheet; and an anion exchange film comprising an anion adsorption sheet and an anion exchange coating layer formed on one side of the anion adsorption sheet, wherein the cation exchange film and the anion exchange film are bonded so that the cation exchange coating layer and the anion exchange coating layer face each other.

公开(公告)号：US10815136B2

公开(公告)日：2020-10-27

申请号：US15777455

申请日：2016-11-10

Applicant: COWAY CO., LTD.

Inventor： Sung-Min Moon ,  Jun-Young Lee ,  Guk-Won Lee ,  Sang-Hyeon Kang

IPC: C02F1/469 ,  B01D61/54 ,  B01D61/44 ,  B01D61/48 ,  C02F1/461

Abstract: A deionization filter device includes a first electrode, a second electrode, at least one bipolar ion exchange sheet configured to include a cation exchange film and an anion exchange film, and disposed between the first electrode and the second electrode, a voltage source configured to apply a deionization voltage or a reproduction voltage between the first electrode and the second electrode, a pH sensor configured to detect a pH value of a solution to be treated by a voltage applied by the voltage source, and a controller configured to control the voltage source, depending on a pH value of the solution.

公开(公告)号：US12064728B2

公开(公告)日：2024-08-20

申请号：US16962122

申请日：2019-01-08

Applicant: COWAY Co., Ltd.

Inventor： Sang-Young Lee ,  Sang-Hyeon Kang ,  Chul-Ho Kim ,  Tae-Seong Kwon ,  Hyoung-Min Moon ,  Sung-Min Moon ,  Jun-Young Lee ,  Byoung-Phil Lee ,  Byung-Sun Mo ,  Guk-Won Lee

IPC: B01D61/48 ,  B01D61/44 ,  B01D69/02 ,  C02F1/469

CPC classification number: B01D61/48 ,  B01D61/445 ,  B01D69/02 ,  C02F1/4695 ,  B01D2313/345 ,  B01D2325/42

Abstract: An electrodeionization filter includes: a housing having a water inlet and a water outlet; a first electrode installed inside the housing in a spiral shape; a second electrode installed inside the housing in a spiral shape so as to be spaced apart from the first electrode; and an ion exchange module installed between the first electrode and the second electrode for adsorbing or desorbing ionic substances contained in water introduced by an application of electricity. At least one of the first electrode and the second electrode has a structure in which a center portion thereof is denser than a peripheral region thereof. Accordingly, the lifespan of the electrodes of the electrodeionization filter can be increased, and the assembly of the electrodes and related parts can be easily facilitated.