KR100517424B1 - 유체제어장치 - Google Patents
유체제어장치 Download PDFInfo
- Publication number
- KR100517424B1 KR100517424B1 KR10-1998-0004289A KR19980004289A KR100517424B1 KR 100517424 B1 KR100517424 B1 KR 100517424B1 KR 19980004289 A KR19980004289 A KR 19980004289A KR 100517424 B1 KR100517424 B1 KR 100517424B1
- Authority
- KR
- South Korea
- Prior art keywords
- valve
- port
- fluid
- shutoff
- opener
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L21/00—Processes or apparatus adapted for the manufacture or treatment of semiconductor or solid state devices or of parts thereof
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B13/00—Details of servomotor systems ; Valves for servomotor systems
- F15B13/02—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors
- F15B13/06—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors for use with two or more servomotors
- F15B13/08—Assemblies of units, each for the control of a single servomotor only
- F15B13/0803—Modular units
- F15B13/0807—Manifolds
- F15B13/0817—Multiblock manifolds
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B13/00—Details of servomotor systems ; Valves for servomotor systems
- F15B13/02—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors
- F15B13/06—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors for use with two or more servomotors
- F15B13/08—Assemblies of units, each for the control of a single servomotor only
- F15B13/0803—Modular units
- F15B13/0871—Channels for fluid
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B13/00—Details of servomotor systems ; Valves for servomotor systems
- F15B13/02—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors
- F15B13/06—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors for use with two or more servomotors
- F15B13/08—Assemblies of units, each for the control of a single servomotor only
- F15B13/0803—Modular units
- F15B13/0878—Assembly of modular units
- F15B13/0885—Assembly of modular units using valves combined with other components
- F15B13/0892—Valves combined with fluid components
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B13/00—Details of servomotor systems ; Valves for servomotor systems
- F15B13/02—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors
- F15B13/06—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors for use with two or more servomotors
- F15B13/08—Assemblies of units, each for the control of a single servomotor only
- F15B13/0803—Modular units
- F15B13/0878—Assembly of modular units
- F15B13/0896—Assembly of modular units using different types or sizes of valves
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B13/00—Details of servomotor systems ; Valves for servomotor systems
- F15B2013/002—Modular valves, i.e. consisting of an assembly of interchangeable components
- F15B2013/006—Modular components with multiple uses, e.g. kits for either normally-open or normally-closed valves, interchangeable or reprogrammable manifolds
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T137/00—Fluid handling
- Y10T137/8593—Systems
- Y10T137/87249—Multiple inlet with multiple outlet
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T137/00—Fluid handling
- Y10T137/8593—Systems
- Y10T137/87265—Dividing into parallel flow paths with recombining
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T137/00—Fluid handling
- Y10T137/8593—Systems
- Y10T137/877—With flow control means for branched passages
- Y10T137/87885—Sectional block structure
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Computer Hardware Design (AREA)
- General Physics & Mathematics (AREA)
- Manufacturing & Machinery (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Power Engineering (AREA)
- Valve Housings (AREA)
- Pipeline Systems (AREA)
- Crystals, And After-Treatments Of Crystals (AREA)
- Chemical Vapour Deposition (AREA)
- Branch Pipes, Bends, And The Like (AREA)
- Flow Control (AREA)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP97-29996 | 1997-02-14 | ||
| JP02999697A JP3997338B2 (ja) | 1997-02-14 | 1997-02-14 | 流体制御装置 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| KR19980071327A KR19980071327A (ko) | 1998-10-26 |
| KR100517424B1 true KR100517424B1 (ko) | 2005-12-12 |
Family
ID=12291552
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| KR10-1998-0004289A Expired - Fee Related KR100517424B1 (ko) | 1997-02-14 | 1998-02-13 | 유체제어장치 |
Country Status (9)
| Country | Link |
|---|---|
| US (2) | US20010003287A1 (enExample) |
| EP (1) | EP0859155B1 (enExample) |
| JP (1) | JP3997338B2 (enExample) |
| KR (1) | KR100517424B1 (enExample) |
| CA (1) | CA2229476C (enExample) |
| DE (1) | DE69822689T2 (enExample) |
| IL (1) | IL123305A (enExample) |
| SG (1) | SG77161A1 (enExample) |
| TW (1) | TW372328B (enExample) |
Families Citing this family (59)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7048007B2 (en) | 1998-03-05 | 2006-05-23 | Swagelok Company | Modular surface mount manifold assemblies |
| CN1289851C (zh) | 1998-03-05 | 2006-12-13 | 斯瓦戈洛克公司 | 歧管系统 |
| US6629546B2 (en) | 1998-03-05 | 2003-10-07 | Swagelok Company | Modular surface mount manifold assemblies |
| US7036528B2 (en) | 1998-05-18 | 2006-05-02 | Swagelok Company | Modular surface mount manifold assemblies |
| JP4200245B2 (ja) * | 1998-11-11 | 2008-12-24 | 株式会社フジキン | 流体継手 |
| JP2002089798A (ja) * | 2000-09-11 | 2002-03-27 | Ulvac Japan Ltd | 流体制御装置およびこれを用いたガス処理装置 |
| JP4655423B2 (ja) * | 2001-07-05 | 2011-03-23 | 株式会社フジキン | 流体制御装置 |
| WO2004018909A2 (en) * | 2002-08-20 | 2004-03-04 | Applied Materials, Inc. | Electronically actuated valve |
| KR20060017577A (ko) * | 2002-08-27 | 2006-02-24 | 셀레리티 인크. | 공통 평면 내에 매니폴드 연결부를 갖는 모듈형 기판 가스패널 |
| JP3854555B2 (ja) * | 2002-08-30 | 2006-12-06 | 東京エレクトロン株式会社 | 薄膜形成装置および薄膜形成方法 |
| GB2431206B (en) | 2002-11-26 | 2007-05-30 | Swagelok Co | Modular surface mount fluid system |
| JP2004183771A (ja) * | 2002-12-03 | 2004-07-02 | Fujikin Inc | 流体制御装置 |
| EP1486707B1 (en) * | 2003-06-11 | 2007-11-21 | Asm International N.V. | Gas supply system, valve assembly and method of forming reactant pulses by operating a valve assembly |
| US7048008B2 (en) | 2004-04-13 | 2006-05-23 | Ultra Clean Holdings, Inc. | Gas-panel assembly |
| JP2006022926A (ja) * | 2004-07-09 | 2006-01-26 | Ckd Corp | 集積弁用下部ブロック |
| JP4677805B2 (ja) * | 2005-03-22 | 2011-04-27 | 株式会社フジキン | 流体制御装置 |
| EP1873433A1 (en) | 2005-04-21 | 2008-01-02 | Fujikin Incorporated | Fluid control device |
| US7320339B2 (en) | 2005-06-02 | 2008-01-22 | Ultra Clean Holdings, Inc. | Gas-panel assembly |
| US7299825B2 (en) | 2005-06-02 | 2007-11-27 | Ultra Clean Holdings, Inc. | Gas-panel assembly |
| JP2007046697A (ja) * | 2005-08-10 | 2007-02-22 | Fujikin Inc | 継手付き流体制御器 |
| JP4780555B2 (ja) * | 2005-09-12 | 2011-09-28 | 株式会社フジキン | 流体制御装置 |
| US7575616B2 (en) * | 2006-02-10 | 2009-08-18 | Entegris, Inc. | Low-profile surface mount filter |
| JP5096696B2 (ja) * | 2006-03-02 | 2012-12-12 | サーパス工業株式会社 | 流体機器ユニット構造 |
| US20070224708A1 (en) * | 2006-03-21 | 2007-09-27 | Sowmya Krishnan | Mass pulse sensor and process-gas system and method |
| KR100990695B1 (ko) * | 2006-06-02 | 2010-10-29 | 도쿄엘렉트론가부시키가이샤 | 가스공급유닛 및 가스공급시스템 |
| JP2007327542A (ja) * | 2006-06-07 | 2007-12-20 | Surpass Kogyo Kk | 流体機器ユニット構造 |
| US20080009977A1 (en) * | 2006-07-10 | 2008-01-10 | Ultra Clean Holdings | Apparatus and Method for Monitoring a Chemical-Supply System |
| WO2008030501A2 (en) * | 2006-09-06 | 2008-03-13 | Ultra Clean Holdings, Incorporated | Pre-certified process chamber and method |
| US7607641B1 (en) * | 2006-10-05 | 2009-10-27 | Microfluidic Systems, Inc. | Microfluidic valve mechanism |
| JP2008291941A (ja) * | 2007-05-25 | 2008-12-04 | Surpass Kogyo Kk | 流体機器ユニット構造 |
| JP5127304B2 (ja) | 2007-05-31 | 2013-01-23 | 株式会社フジキン | 流体制御装置 |
| JP5125228B2 (ja) | 2007-05-31 | 2013-01-23 | 株式会社フジキン | 流体制御装置およびその組立方法 |
| JP5150628B2 (ja) | 2007-05-31 | 2013-02-20 | 東京エレクトロン株式会社 | 流体制御装置 |
| US20080302426A1 (en) * | 2007-06-06 | 2008-12-11 | Greg Patrick Mulligan | System and method of securing removable components for distribution of fluids |
| US20090078324A1 (en) * | 2007-09-21 | 2009-03-26 | Ultra Clean Technology, Inc. | Gas-panel system |
| US8322380B2 (en) * | 2007-10-12 | 2012-12-04 | Lam Research Corporation | Universal fluid flow adaptor |
| US20090114295A1 (en) * | 2007-11-06 | 2009-05-07 | Ultra Clean Holdings, Inc. | Gas-panel assembly |
| ES1068601Y (es) * | 2008-08-08 | 2009-02-01 | Istobal Sa | Panel central para control y distribucion de fluidos en instalaciones de lavado de vehiculos |
| US20100102261A1 (en) * | 2008-10-28 | 2010-04-29 | Microfluidic Systems, Inc. | Microfluidic valve mechanism |
| US8307854B1 (en) | 2009-05-14 | 2012-11-13 | Vistadeltek, Inc. | Fluid delivery substrates for building removable standard fluid delivery sticks |
| TWI534922B (zh) | 2009-06-10 | 2016-05-21 | 威士塔戴爾泰克有限責任公司 | 極端流量和/或高溫流體輸送基板 |
| DE102010043865A1 (de) * | 2009-11-30 | 2011-07-14 | Horiba Stec Co., Ltd. | Fluid device |
| JP5573666B2 (ja) | 2010-12-28 | 2014-08-20 | 東京エレクトロン株式会社 | 原料供給装置及び成膜装置 |
| WO2012151292A2 (en) | 2011-05-02 | 2012-11-08 | Advantage Group International Inc. | Manifold system for gas and fluid delivery |
| JP5785813B2 (ja) * | 2011-08-10 | 2015-09-30 | 株式会社フジキン | 流体制御装置 |
| CN103827560B (zh) * | 2011-09-30 | 2016-06-22 | 株式会社富士金 | 气体供给装置 |
| KR101940325B1 (ko) | 2011-10-05 | 2019-01-18 | 가부시키가이샤 호리바 에스텍 | 유체 기구 및 상기 유체 기구를 구성하는 지지 부재 및 유체 제어 시스템 |
| JP6012247B2 (ja) * | 2012-04-27 | 2016-10-25 | 株式会社フジキン | 流体制御装置 |
| JP5478666B2 (ja) * | 2012-05-21 | 2014-04-23 | 株式会社アルバック | 流体制御装置およびこれを用いたガス処理装置 |
| US9454158B2 (en) | 2013-03-15 | 2016-09-27 | Bhushan Somani | Real time diagnostics for flow controller systems and methods |
| US9639094B2 (en) * | 2014-11-12 | 2017-05-02 | Michael D. Palmer | Electronic pneumatic pressure controller |
| DE102015100762A1 (de) * | 2015-01-20 | 2016-07-21 | Infineon Technologies Ag | Behälterschalteinrichtung und Verfahren zum Überwachen einer Fluidrate |
| KR20190075100A (ko) | 2016-10-24 | 2019-06-28 | 가부시키가이샤 후지킨 | 유체제어장치 및 이 유체제어장치를 사용한 제품 제조방법 |
| US10983538B2 (en) | 2017-02-27 | 2021-04-20 | Flow Devices And Systems Inc. | Systems and methods for flow sensor back pressure adjustment for mass flow controller |
| US10400332B2 (en) * | 2017-03-14 | 2019-09-03 | Eastman Kodak Company | Deposition system with interlocking deposition heads |
| US20210125842A1 (en) * | 2017-03-29 | 2021-04-29 | Fujikin Incorporated | Conversion Joint, Integrated Fluid Supply Device Having Said Conversion Joint, and Method for Mounting a Fluid Part |
| JP7045089B2 (ja) | 2017-08-31 | 2022-03-31 | 株式会社フジキン | 継手ブロックおよびその製造方法 |
| JP7333053B2 (ja) * | 2019-06-28 | 2023-08-24 | 株式会社フジキン | ガス供給装置および半導体製造装置 |
| JP7389461B2 (ja) * | 2019-10-31 | 2023-11-30 | 株式会社フジキン | バルブ装置および流体制御装置 |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5065794A (en) * | 1990-11-26 | 1991-11-19 | Union Carbide Industrial Gases Technology Corporation | Gas flow distribution system |
| JPH05203100A (ja) * | 1992-01-29 | 1993-08-10 | Toshiba Corp | ガス供給装置 |
| US5241987A (en) * | 1989-04-26 | 1993-09-07 | Tadahiro Ohmi | Process gas supplying apparatus |
| JPH07122500A (ja) * | 1993-10-28 | 1995-05-12 | Fujitsu Ltd | ガス機器及びこれを利用したガス供給装置 |
| US5590686A (en) * | 1995-05-02 | 1997-01-07 | Dober Chemical Corp. | Liquid delivery systems |
Family Cites Families (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3525363A (en) | 1968-08-02 | 1970-08-25 | Chicago Specialty Mfg Co | Means for controlling the direction of the flow of a liquid or fluid through a selected outlet |
| US3536100A (en) | 1968-12-05 | 1970-10-27 | Olin Corp | Valve |
| US3556153A (en) | 1968-12-24 | 1971-01-19 | Quality Controls Co Inc | Rotor valve |
| JPS603375U (ja) | 1983-06-22 | 1985-01-11 | ハウス食品工業株式会社 | 三方バルブの洗浄用配管 |
| US5313982A (en) * | 1988-07-08 | 1994-05-24 | Tadahiro Ohmi | Gas supply piping device for a process apparatus |
| FR2664671B1 (fr) * | 1990-07-12 | 1992-10-09 | Centre Nat Rech Scient | Vanne et dispositif de distribution multivoies, notamment pour fluides corrosifs. |
| US5368062A (en) * | 1992-01-29 | 1994-11-29 | Kabushiki Kaisha Toshiba | Gas supplying system and gas supplying apparatus |
| US5246026A (en) | 1992-05-12 | 1993-09-21 | Proudman Systems, Inc. | Fluid measuring, dilution and delivery system |
| US5205322A (en) | 1992-06-17 | 1993-04-27 | Puritan-Bennett Corporation | Method and apparatus for flow control for sensor calibration |
| EP0619450A1 (en) | 1993-04-09 | 1994-10-12 | The Boc Group, Inc. | Zero Dead-Leg Gas Cabinet |
| US5749389A (en) | 1993-12-22 | 1998-05-12 | Liquid Air Corporation | Purgeable connection for gas supply cabinet |
| US5605179A (en) * | 1995-03-17 | 1997-02-25 | Insync Systems, Inc. | Integrated gas panel |
| WO1996034705A1 (en) * | 1995-05-05 | 1996-11-07 | Insync Systems, Inc. | Mfc-quick change method and apparatus |
| JP3546275B2 (ja) * | 1995-06-30 | 2004-07-21 | 忠弘 大見 | 流体制御装置 |
| KR100232112B1 (ko) * | 1996-01-05 | 1999-12-01 | 아마노 시게루 | 가스공급유닛 |
| US5992463A (en) * | 1996-10-30 | 1999-11-30 | Unit Instruments, Inc. | Gas panel |
-
1997
- 1997-02-14 JP JP02999697A patent/JP3997338B2/ja not_active Expired - Lifetime
-
1998
- 1998-02-13 CA CA002229476A patent/CA2229476C/en not_active Expired - Fee Related
- 1998-02-13 DE DE69822689T patent/DE69822689T2/de not_active Expired - Fee Related
- 1998-02-13 EP EP98102554A patent/EP0859155B1/en not_active Expired - Lifetime
- 1998-02-13 TW TW087102012A patent/TW372328B/zh not_active IP Right Cessation
- 1998-02-13 KR KR10-1998-0004289A patent/KR100517424B1/ko not_active Expired - Fee Related
- 1998-02-13 US US09/023,416 patent/US20010003287A1/en not_active Abandoned
- 1998-02-14 SG SG1998000329A patent/SG77161A1/en unknown
- 1998-02-15 IL IL12330598A patent/IL123305A/xx not_active IP Right Cessation
-
2002
- 2002-10-22 US US10/277,147 patent/US6615871B2/en not_active Expired - Lifetime
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5241987A (en) * | 1989-04-26 | 1993-09-07 | Tadahiro Ohmi | Process gas supplying apparatus |
| US5065794A (en) * | 1990-11-26 | 1991-11-19 | Union Carbide Industrial Gases Technology Corporation | Gas flow distribution system |
| JPH05203100A (ja) * | 1992-01-29 | 1993-08-10 | Toshiba Corp | ガス供給装置 |
| JPH07122500A (ja) * | 1993-10-28 | 1995-05-12 | Fujitsu Ltd | ガス機器及びこれを利用したガス供給装置 |
| US5590686A (en) * | 1995-05-02 | 1997-01-07 | Dober Chemical Corp. | Liquid delivery systems |
Also Published As
| Publication number | Publication date |
|---|---|
| IL123305A0 (en) | 1998-09-24 |
| US20010003287A1 (en) | 2001-06-14 |
| IL123305A (en) | 2000-10-31 |
| US20030041910A1 (en) | 2003-03-06 |
| CA2229476C (en) | 2006-07-11 |
| JP3997338B2 (ja) | 2007-10-24 |
| JPH10227368A (ja) | 1998-08-25 |
| CA2229476A1 (en) | 1998-08-14 |
| EP0859155A3 (en) | 1999-07-28 |
| DE69822689D1 (de) | 2004-05-06 |
| US6615871B2 (en) | 2003-09-09 |
| DE69822689T2 (de) | 2005-02-10 |
| SG77161A1 (en) | 2000-12-19 |
| TW372328B (en) | 1999-10-21 |
| EP0859155B1 (en) | 2004-03-31 |
| KR19980071327A (ko) | 1998-10-26 |
| EP0859155A2 (en) | 1998-08-19 |
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