Patent Number

TWI391331 B 2013-04-01

Pure water production system
The present invention provides a water purifying system capable of efficiently producing treated water containing boron at a low concentration.Water to be treated is first fed to the RO membrane apparatus 1 and the passed water is fed through the boron absorptive apparatus 2.Water which was passed through the boron absorptive apparatus 2 and of which boron was thus removed is fed through the electrodeionization apparatus 3.In this manner, water treated by electrodeionization is taken out as treated water.The condensed water of the electrodeionization apparatus 3 may be discharged or returned to the upstream side of the RO membrane apparatus 1 through a return pipe 4 so that the condensed water is added to water to be treated.Suitably used as the absorptive agent accommodated in the boron absorptive apparatus 2 is a boron selective absorptive agent capable of selectively absorbing boron.		©Questel

FamPat family

Publication Number		Type	Publi.Date	Links
	EP1640344	A1	2006-03-29
	STG:	(A1) Application published with search report
	AP:	2004EP-0745499
	EP1640344	A4	2006-11-29
	STG:	(A4) Supplementary search report
	AP:	2004EP-0745499
	EP1640344	B1	2008-05-28
	STG:	(B1) Patent specification
	AP:	2004EP-0745499
	US20060096864	A1	2006-05-11
	STG:	(A1) Application published
	AP:	2005US-11294596
	US7699968	B2	2010-04-20
	STG:	(B2) Granted patent as second publication
	AP:	2005US-11294596
PCT	WO2004/110939	A1	2004-12-23
	STG:	(A1) Published application with search report
	AP:	2004WO-JP07600
	DE602004014144	D1	2008-07-10
	STG:	(D1) Grant (no unexamined application published) patent law 81
	AP:	2004DE-60014144
	JP2005000828	A	2005-01-06
	STG:	(A) Published application
	AP:	2003JP-0167967
	JP3864934	B2	2007-01-10
	STG:	(B2) Published granted patent (Second level) from 01-03-1996 onwards (Published examined patent application (Second level) 1971-1996)
	AP:	2003JP-0167967
	TW200503963	A	2005-02-01
	STG:	(A) Laid open application for patent or patent of addition
	AP:	2004TW-0115763
	TWI391331	B	2013-04-01
	STG:	(B) Granted patent or patent of addition
	AP:	2004TW-0115763
	SG117861	A1	2006-01-27
	STG:	(A1) Patent Application
	AP:	2005SG-0078688
	SG117861	B	2007-06-29
	STG:	(B) Patent Granted
	AP:	2005SG-0078688
	KR10-2006-0021365	A	2006-03-07
	STG:	(A) Published application
	AP:	2005KR-7023749
	KR10-1018768	B1	2011-03-07
	STG:	(B1) Patent specification
	AP:	2005KR-7023749
	CN1829665	A	2006-09-06
	STG:	(A) Published application
	AP:	2004CN-80022130
	CN100355667	C	2007-12-19
	STG:	(C) Granted patent for invention
	AP:	2004CN-80022130
	ATE396958	T1	2008-06-15
	STG:	(T1) Translation of an European patent specification
	AP:	2004AT-0745499T

First Date of Grant

2008-05-28

2010-04-20

2008-07-10

2007-01-10

2007-06-29

2011-03-07

2007-12-19

2008-06-15

2013-04-01

Inventor

OSAWA MASANOBU
YAMADA SATOSHI

All applicant/assignee

Kurita Water Industries Ltd. ([JP])
Kurita Water Industries Ltd. ([JP])
Kurita Water Industries Ltd. ([JP])

KURITA WATER INDUSTRIES LTD. ([JP])
Kurita Water Industries Ltd. ([JP])

KURITA WATER INDUSTRIES LTD. ([JP])

KURITA WATER INDUSTRIES LTD.

KURITA WATER IND LTD
KURITA WATER INDUSTRIES LTD.

KURITA WATER INDUSTRIES LTD. ([JP])
KURITA WATER INDUSTRIES LTD. ([JP])

KURITA WATER INDUSTRIS LTD.
KURITA WATER INDUSTRIS LTD.

KURITA WATER IND LTD.
KURITA WATER IND LTD. ([JP])

KURITA WATER INDUSTRIES LTD.

KURITA WATER INDUSTRIES LTD.
KURITA WATER INDUSTRIES LTD.

Priority Details

2003JP-0167967 2003-06-122004WO-JP07600 2004-06-02

Designated States

Contracting States: AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LI LU MC NL PL PT RO SE SI SK TR

National States: AE AG AL AM AT AU AZ BA BB BG BR BW BY BZ CA CH CN CO CR CU CZ DE DK DM DZ EC EE EG ES FI GB GD GE GH GM HR HU ID IL IN IS KE KG KP KR KZ LC LK LR LS LT LU LV MA MD MG MK MN MW MX MZ NA NI NO NZ OM PG PH PL PT RO RU SC SD SE SG SK SL SY TJ TM TN TR TT TZ UA UG US UZ VC VN YU ZA ZM ZW
ARIPO: BW GH GM KE LS MW MZ NA SD SL SZ TZ UG ZM ZW
EAPO: AM AZ BY KG KZ MD RU TJ TM
EPO: AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LU MC NL PL PT RO SE SI SK TR
OAPI: BF BJ CF CG CI CM GA GN GQ GW ML MR NE SN TD TG

�Questel