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1. 发明专利

JP5093437B2 Bacteriostatic method of the fuel cell system 有权
公开(公告)号：JP5093437B2
公开(公告)日：2012-12-12
申请号：JP2006056199
申请日：2006-03-02
申请人：栗田工業株式会社
发明人：高明中馬 , 公伸大澤
IPC分类号： H01M8/04 , B01D19/00 , B01D61/44 , C02F1/20 , C02F1/46 , C02F1/469
CPC分类号： Y02E60/50

2. 发明专利

JP4853610B2 Reproducing apparatus and ion removal method sulfate plating solution containing sulfate ions 有权
公开(公告)号：JP4853610B2
公开(公告)日：2012-01-11
申请号：JP2005250792
申请日：2005-08-31
申请人：栗田工業株式会社
发明人：公伸大澤 , 大三犬塚
IPC分类号： C25D21/18 , C25D21/16 , C25D21/22

3. 发明专利

JP4097778B2 Gas dissolved cleaning water supply pipe 失效
公开(公告)号：JP4097778B2
公开(公告)日：2008-06-11
申请号：JP12592198
申请日：1998-05-08
申请人：栗田工業株式会社
发明人：純一井田 , 公伸大澤 , 博志森田
IPC分类号： B08B9/027 , B08B3/08 , C11D7/00 , H01L21/304

4. 发明专利

JP3570350B2 Electrodeionization apparatus and pure water manufacturing equipment 有权
公开(公告)号：JP3570350B2
公开(公告)日：2004-09-29
申请号：JP2000199285
申请日：2000-06-30
申请人：栗田工業株式会社
发明人：公伸大澤
IPC分类号： B01D61/48 , B01D61/58 , C02F1/469

5. 发明专利

JP3562659B2 Purification treatment equipment and purification treatment method of algae-containing water 失效
公开(公告)号：JP3562659B2
公开(公告)日：2004-09-08
申请号：JP25942794
申请日：1994-09-29
申请人：栗田工業株式会社
发明人：公伸大澤
IPC分类号： C02F1/24 , C02F1/32 , C02F1/52

6. 发明专利

JP5326572B2 High purity method and ultra-pure water production system of ultra-pure water 有权
公开(公告)号：JP5326572B2
公开(公告)日：2013-10-30
申请号：JP2008542095
申请日：2007-10-29
申请人：栗田工業株式会社
发明人：秀樹小林 , 邦洋早川 , 公伸大澤
IPC分类号： C02F1/42 , B01D29/07 , B01D39/14 , B01D61/18 , B01D63/14 , B01J47/04 , B01J47/12
CPC分类号： B01D61/16 , B01D61/025 , B01D61/027 , B01D61/145 , B01D61/147 , B01D63/14 , B01D2311/04 , B01D2311/16 , C02F1/32 , C02F1/42 , C02F1/444 , C02F9/005 , C02F2103/04 , B01D2311/2623
摘要： Disclosed are a method for further purifying ultrapure water, according to which any impurities in ultrapure water can be stably removed to a high degree within a small space over a prolonged period; and an apparatus therefor. Ultrapure water introduced into an ultrapure-water purifying apparatus 10 passes through an ion exchange resin layer 5 in a lower chamber 1a. During this process, metal ions, for example, in the ultrapure water are removed by the ion exchange resin. The ultrapure water then passes through a perforated plate 4, flows into an upper chamber 1b, and permeates an ion exchange filter 6. During this process, metal ions and other impurities remaining unremoved by the ion exchange resin layer 5 are removed. Specifically, metal ions are removed to a certain extent by the ion exchange resin, so that it is enough for the ion exchange filter provided downstream thereof to remove an extremely small amount of metal ions. Consequently, reaching of the ion exchange filter to breakthrough within a short period can be prevented, thereby attaining further purification of ultrapure water over a prolonged period of time.

7. 发明专利

JP5196110B2 Method of operating an electrodeionization apparatus and electrodeionization apparatus 有权
公开(公告)号：JP5196110B2
公开(公告)日：2013-05-15
申请号：JP2007148562
申请日：2007-06-04
申请人：栗田工業株式会社
发明人：啓憲加来 , 公伸大澤
IPC分类号： C02F1/469 , B01D61/44 , B01D61/46
CPC分类号： Y02A20/134
摘要： PROBLEM TO BE SOLVED: To provide an electro-deionization apparatus which can prevent the occurrence of scale even when water, in which an inorganic carbonic acid and a hardness component remain, is diffused into and flows backward into a concentration chamber as a result of the stop of the electro-deionization apparatus for a long period of time. SOLUTION: An electro-deionization apparatus 1 comprises a plurality of desalination chambers 2 and a plurality of concentration chambers 3 each provided between a plurality of cation exchange membranes 4 and a plurality of anion exchange membranes 5. The concentration chamber 3 is divided by a bipolar membrane 10 into a cathode-side concentration chamber 3A and an anode-side concentration chamber 3B. A flow passage R1 for water W1 to be treated is connected to the desalination chamber 2. The outlet side of the desalination chamber 2 functions as a flow passage R2 for deionized water (treated water) W2. The flow passage R2 is branched, and a flow passage branch R3 and flow passages R3a to R3d communicate, for example, with the cathode-side concentration chamber 3A, the anode-side concentration chamber 3B etc., respectively. A part of the deionized water W2 in the desalination chamber 2 is introduced into the concentration chamber 3. In such a state that circulating water in the concentration chamber 3 has been diluted with deionized water, concentrated water W3 is discharged through each of discharge flow passages R4a to R4d each provided with a check valve 20 and a combined discharge passage R4. COPYRIGHT: (C)2009,JPO&INPIT

8. 发明专利

JP4978098B2 Electrodeionization apparatus 有权
公开(公告)号：JP4978098B2
公开(公告)日：2012-07-18
申请号：JP2006211471
申请日：2006-08-02
申请人：栗田工業株式会社
发明人：啓憲加来 , 公伸大澤
IPC分类号： C02F1/469 , B01D61/48
CPC分类号： B01D61/485 , B01D2313/30 , C02F1/42 , C02F1/4602 , C02F1/4695 , C02F2103/32 , C02F2103/343 , C02F2103/346 , C02F2209/001 , C02F2209/003 , C02F2209/05 , Y02A20/134
摘要： An electrodeionization apparatus has a cathode and an anode, and has alternately formed therebetween concentrating chambers and desalination chambers by alternately arranging a plurality of anion exchange membranes and cation exchange membranes, each of the concentrating chambers being provided with a bipolar membrane to partition the interior of the concentrating chamber into a cathode side and an anode side, and each of the desalination chambers being divided into at least two layers including a first layer and a second layer, from an upstream side in a direction of flow of water to be treated, and being filled with an ion exchanger comprising an anion exchanger and a cation exchanger. The ion exchanger filling the first layer contains no less than 50 vol % of the cation exchanger, while the ion exchanger filling the second layer contains over 50 vol % to 80 vol % of the anion exchanger. As a result, the electrodeionization apparatus can be stably operated for a prolonged period of time while preventing formation of scale in the concentrating chambers and desalination chambers.

9. 发明专利

JP4599668B2 Method of operating an electrodeionization apparatus 有权
公开(公告)号：JP4599668B2
公开(公告)日：2010-12-15
申请号：JP2000199286
申请日：2000-06-30
申请人：栗田工業株式会社
发明人：伸佐藤 , 公伸大澤
IPC分类号： B01D61/48 , C02F1/469 , B01D61/52 , B01D61/54 , B01D61/58 , C02F1/42
CPC分类号： Y02A20/134
摘要： PROBLEM TO BE SOLVED: To surely remove a weak electrolyte substance such as silica at a high removing rate in an electric deionization device. SOLUTION: The electric deionization device in which concentration chambers and desalting chambers are alternately formed by alternately arranging a plurality of anion exchange membranes and cation exchange membranes between an anode and a cathode and ion exchange bodies are filled in the desalting chambers is operated under following conditions: A/(Q.SV)>=4,000, wherein, A is an operation current (A); Q is the flow rate of water to be supplied to the desalting chamber per a desalting chamber (L/sec); and SV is the flow rate of water to be supplied per the volume of the ion exchange bodies in the desalting chamber (L/L-ion exchange bodies.sec).

10. 发明专利

JP4110689B2 Electrodeionization apparatus 有权
公开(公告)号：JP4110689B2
公开(公告)日：2008-07-02
申请号：JP29228799
申请日：1999-10-14
申请人：栗田工業株式会社
发明人：公伸大澤
IPC分类号： B01D61/48 , C02F1/469
CPC分类号： Y02A20/134
摘要： PROBLEM TO BE SOLVED: To obtain deionized water of good quality under a low voltage condition. SOLUTION: In an electro-deionizing apparatus wherein a plurality of cation exchange membranes 16 and a plurality of anion exchange membranes 15 are alternately arranged between an anode chamber 11 having an anode 12 and a cathode chamber 13 having a cathode 14 and arranged in a water passing direction in parallel to the anode chamber and desalting chambers 18 for passing raw water and concentrating chambers 17 are alternately formed between the adjacent cation and anion exchange membranes and the desalting chambers 18 are packed with an ion exchanger, the ion exchanger in the desalting chambers 18 comprises an amphoteric ion exchanger into which anion and cation exchange groups are introduced.

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