HK1013730A1 - A process of treating slider bodies - Google Patents
A process of treating slider bodiesInfo
- Publication number
- HK1013730A1 HK1013730A1 HK98115074A HK98115074A HK1013730A1 HK 1013730 A1 HK1013730 A1 HK 1013730A1 HK 98115074 A HK98115074 A HK 98115074A HK 98115074 A HK98115074 A HK 98115074A HK 1013730 A1 HK1013730 A1 HK 1013730A1
- Authority
- HK
- Hong Kong
- Prior art keywords
- treating
- slider bodies
- slider
- bodies
- treating slider
- Prior art date
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C16/00—Chemical coating by decomposition of gaseous compounds, without leaving reaction products of surface material in the coating, i.e. chemical vapour deposition [CVD] processes
- C23C16/02—Pretreatment of the material to be coated
- C23C16/0227—Pretreatment of the material to be coated by cleaning or etching
- C23C16/0245—Pretreatment of the material to be coated by cleaning or etching by etching with a plasma
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C16/00—Chemical coating by decomposition of gaseous compounds, without leaving reaction products of surface material in the coating, i.e. chemical vapour deposition [CVD] processes
- C23C16/22—Chemical coating by decomposition of gaseous compounds, without leaving reaction products of surface material in the coating, i.e. chemical vapour deposition [CVD] processes characterised by the deposition of inorganic material, other than metallic material
- C23C16/30—Deposition of compounds, mixtures or solid solutions, e.g. borides, carbides, nitrides
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B23/00—Record carriers not specific to the method of recording or reproducing; Accessories, e.g. containers, specially adapted for co-operation with the recording or reproducing apparatus ; Intermediate mediums; Apparatus or processes specially adapted for their manufacture
- G11B23/50—Reconditioning of record carriers; Cleaning of record carriers ; Carrying-off electrostatic charges
- G11B23/505—Reconditioning of record carriers; Cleaning of record carriers ; Carrying-off electrostatic charges of disk carriers
- G11B23/507—Reconditioning of record carriers; Cleaning of record carriers ; Carrying-off electrostatic charges of disk carriers combined with means for reducing influence of physical parameters, e.g. temperature change, moisture
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B5/00—Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor
- G11B5/10—Structure or manufacture of housings or shields for heads
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B5/00—Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor
- G11B5/48—Disposition or mounting of heads or head supports relative to record carriers ; arrangements of heads, e.g. for scanning the record carrier to increase the relative speed
- G11B5/58—Disposition or mounting of heads or head supports relative to record carriers ; arrangements of heads, e.g. for scanning the record carrier to increase the relative speed with provision for moving the head for the purpose of maintaining alignment of the head relative to the record carrier during transducing operation, e.g. to compensate for surface irregularities of the latter or for track following
- G11B5/60—Fluid-dynamic spacing of heads from record-carriers
- G11B5/6005—Specially adapted for spacing from a rotating disc using a fluid cushion
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B5/00—Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor
- G11B5/62—Record carriers characterised by the selection of the material
- G11B5/72—Protective coatings, e.g. anti-static or antifriction
- G11B5/725—Protective coatings, e.g. anti-static or antifriction containing a lubricant, e.g. organic compounds
- G11B5/7253—Fluorocarbon lubricant
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B5/00—Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor
- G11B5/62—Record carriers characterised by the selection of the material
- G11B5/72—Protective coatings, e.g. anti-static or antifriction
- G11B5/726—Two or more protective coatings
- G11B5/7262—Inorganic protective coating
- G11B5/7264—Inorganic carbon protective coating, e.g. graphite, diamond like carbon or doped carbon
- G11B5/7266—Inorganic carbon protective coating, e.g. graphite, diamond like carbon or doped carbon comprising a lubricant over the inorganic carbon coating
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B5/00—Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor
- G11B5/84—Processes or apparatus specially adapted for manufacturing record carriers
-
- 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
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S428/00—Stock material or miscellaneous articles
- Y10S428/922—Static electricity metal bleed-off metallic stock
- Y10S428/9335—Product by special process
- Y10S428/938—Vapor deposition or gas diffusion
-
- 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
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/12—All metal or with adjacent metals
- Y10T428/12493—Composite; i.e., plural, adjacent, spatially distinct metal components [e.g., layers, joint, etc.]
- Y10T428/12535—Composite; i.e., plural, adjacent, spatially distinct metal components [e.g., layers, joint, etc.] with additional, spatially distinct nonmetal component
- Y10T428/12542—More than one such component
- Y10T428/12549—Adjacent to each other
-
- 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
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/12—All metal or with adjacent metals
- Y10T428/12493—Composite; i.e., plural, adjacent, spatially distinct metal components [e.g., layers, joint, etc.]
- Y10T428/12535—Composite; i.e., plural, adjacent, spatially distinct metal components [e.g., layers, joint, etc.] with additional, spatially distinct nonmetal component
- Y10T428/12556—Organic component
- Y10T428/12569—Synthetic resin
-
- 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
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/12—All metal or with adjacent metals
- Y10T428/12493—Composite; i.e., plural, adjacent, spatially distinct metal components [e.g., layers, joint, etc.]
- Y10T428/12535—Composite; i.e., plural, adjacent, spatially distinct metal components [e.g., layers, joint, etc.] with additional, spatially distinct nonmetal component
- Y10T428/12625—Free carbon containing component
-
- 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
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/12—All metal or with adjacent metals
- Y10T428/12493—Composite; i.e., plural, adjacent, spatially distinct metal components [e.g., layers, joint, etc.]
- Y10T428/12736—Al-base component
- Y10T428/1275—Next to Group VIII or IB metal-base component
- Y10T428/12757—Fe
Landscapes
- Chemical & Material Sciences (AREA)
- Inorganic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Physics & Mathematics (AREA)
- Plasma & Fusion (AREA)
- Manufacturing & Machinery (AREA)
- Adjustment Of The Magnetic Head Position Track Following On Tapes (AREA)
- Manufacturing Of Magnetic Record Carriers (AREA)
- Magnetic Record Carriers (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US07/166,215 US4863809A (en) | 1988-03-10 | 1988-03-10 | Surface treatment for sliders and carbon coated magnetic media |
Publications (1)
Publication Number | Publication Date |
---|---|
HK1013730A1 true HK1013730A1 (en) | 1999-09-03 |
Family
ID=22602309
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
HK98115074A HK1013730A1 (en) | 1988-03-10 | 1998-12-23 | A process of treating slider bodies |
Country Status (6)
Country | Link |
---|---|
US (1) | US4863809A (xx) |
EP (2) | EP0680036B1 (xx) |
JP (1) | JPH01245425A (xx) |
DE (2) | DE3854963T2 (xx) |
HK (1) | HK1013730A1 (xx) |
SG (1) | SG47052A1 (xx) |
Families Citing this family (37)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5073466A (en) * | 1988-08-29 | 1991-12-17 | Hitachi, Ltd. | Electrophotographic member containing a fluorine-containing lubricating agent and process for producing the same |
US5060097A (en) * | 1989-01-06 | 1991-10-22 | Hitachi, Ltd. | Magnetic disc file including a slider which exhibits reduced deformation during operation |
EP0767457B1 (en) * | 1990-01-19 | 2001-08-29 | Sharp Kabushiki Kaisha | Magneto-optical recording device |
US5231613A (en) * | 1990-01-19 | 1993-07-27 | Sharp Kabushiki Kaisha | Magneto-optical recording device |
JPH03248351A (ja) * | 1990-02-23 | 1991-11-06 | Sharp Corp | 光磁気記録媒体及びそれを用いる磁気記録再生装置 |
US5156919A (en) * | 1990-04-03 | 1992-10-20 | Segate Technology, Inc. | Fluorocarbon coated magnesium alloy carriage and method of coating a magnesium alloy shaped part |
US5166847A (en) * | 1990-04-05 | 1992-11-24 | Seagate Technology, Inc. | Reduced stick/slip load arm assembly having a coating with a low frictional coefficient |
GB2250036B (en) * | 1990-10-26 | 1994-07-06 | Matsushita Electric Works Ltd | Timber surface improving treatment process |
JP2566700B2 (ja) * | 1991-04-08 | 1996-12-25 | インターナショナル・ビジネス・マシーンズ・コーポレイション | 薄膜記憶媒体上に潤滑剤を結合する方法 |
AU5298993A (en) * | 1992-10-06 | 1994-04-26 | Maxtor Corporation | Slider for magnetic recording head having self-lubricating overcoat |
AU5299093A (en) * | 1992-10-06 | 1994-04-26 | Maxtor Corporation | Magnetic recording head for in-contact and near-contact recording systems |
US5525392A (en) * | 1992-12-10 | 1996-06-11 | International Business Machines Corporation | Magnetic recording medium having a fluorinated polymeric protective layer formed by an ion beam |
JPH10501087A (ja) * | 1994-03-02 | 1998-01-27 | コナー ペリフェラルズ インコーポレイテッド | 潤滑化ディスクドライブ用の、酸化に対して安定化された炭化水素液体ベアリング |
US5661618A (en) * | 1995-12-11 | 1997-08-26 | International Business Machines Corporation | Magnetic recording device having a improved slider |
US6225595B1 (en) | 1996-05-13 | 2001-05-01 | Seagate Technology Llc | Shaped-beam laser texturing of magnetic media |
DE19622732C2 (de) * | 1996-06-07 | 2000-04-13 | Ibm | Oberflächenmodifikation von Magnetköpfen |
JP3178375B2 (ja) * | 1997-06-03 | 2001-06-18 | 日本電気株式会社 | 絶縁膜の形成方法 |
US6477011B1 (en) | 1998-08-24 | 2002-11-05 | International Business Machines Corporation | Magnetic recording device having an improved slider |
US6542334B2 (en) * | 1998-11-18 | 2003-04-01 | Seagate Technology Llc | Edge structure for slider-disc interface and method of manufacture therefor |
JP3396175B2 (ja) * | 1998-12-22 | 2003-04-14 | 昭和電工株式会社 | 磁気記録媒体の製造方法 |
US6252741B1 (en) | 1999-05-11 | 2001-06-26 | Greenleaf Technologies | Thin film magnetic recording head with treated ceramic substrate |
JP2000348303A (ja) * | 1999-06-08 | 2000-12-15 | Internatl Business Mach Corp <Ibm> | 低表面エネルギーの物質でコーティングした磁気ヘッド |
JP3630073B2 (ja) | 2000-05-17 | 2005-03-16 | セイコーエプソン株式会社 | 半導体装置の製造方法 |
SG107569A1 (en) * | 2000-11-28 | 2004-12-29 | Fuji Photo Film Co Ltd | Magnetic transferring method, and method and apparatus for cleaning magnetic transfer master medium |
KR100589041B1 (ko) * | 2001-03-30 | 2006-06-13 | 삼성전자주식회사 | 마스크 및 그 형성방법 |
JP2003223704A (ja) * | 2002-01-25 | 2003-08-08 | Fujitsu Ltd | 磁気ヘッドおよびデータ記録再生装置 |
US7746600B2 (en) | 2003-04-08 | 2010-06-29 | Seagate Technology Llc | Encapsulant for a disc drive component |
US7675711B2 (en) * | 2003-05-07 | 2010-03-09 | Sae Magnetics (Hk) Ltd. | Measuring and neutralizing the electrical charge at the interface of a magnetic head and media |
US20050181239A1 (en) * | 2004-02-12 | 2005-08-18 | Seagate Technology Llc | Granular magnetic recording media with improved corrosion resistance by pre-carbon overcoat ion etching |
JP4131720B2 (ja) * | 2004-08-31 | 2008-08-13 | 富士通株式会社 | 磁気記録媒体、ヘッドスライダおよびそれらの製造方法 |
JPWO2006075362A1 (ja) * | 2005-01-12 | 2008-06-12 | 富士通株式会社 | 磁気ヘッドおよびその製造方法、磁気ディスク装置 |
KR101194646B1 (ko) * | 2005-12-30 | 2012-10-24 | 엘지디스플레이 주식회사 | 소프트몰드 제조방법 |
US7691499B2 (en) * | 2006-04-21 | 2010-04-06 | Seagate Technology Llc | Corrosion-resistant granular magnetic media with improved recording performance and methods of manufacturing same |
JP2008065903A (ja) * | 2006-09-07 | 2008-03-21 | Hitachi Global Storage Technologies Netherlands Bv | ヘッドスライダ |
JP4991650B2 (ja) * | 2008-07-04 | 2012-08-01 | 株式会社東芝 | ヘッドスライダ及び磁気記憶装置 |
US8673162B2 (en) * | 2009-12-10 | 2014-03-18 | Applied Materials, Inc. | Methods for substrate surface planarization during magnetic patterning by plasma immersion ion implantation |
WO2012033464A1 (en) * | 2010-09-07 | 2012-03-15 | National University Of Singapore | An improved head-media interface in a hard disk drive |
Family Cites Families (23)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3778308B1 (en) * | 1970-12-18 | 1991-06-04 | Magnetic storage device coating and process | |
USRE32464E (en) * | 1971-05-03 | 1987-07-28 | Thin film recording and method of making | |
GB1587882A (en) * | 1976-08-16 | 1981-04-08 | Matsushita Electric Ind Co Ltd | Magnetic head and method for manufacturing the same |
JPS54114223A (en) * | 1978-02-27 | 1979-09-06 | Nippon Telegr & Teleph Corp <Ntt> | Production of floating type thin film magnetic head |
JPS57135442A (en) * | 1981-02-16 | 1982-08-21 | Fuji Photo Film Co Ltd | Magnetic recording medium and its manufacture |
DE3267514D1 (en) * | 1982-03-25 | 1986-01-02 | Ibm Deutschland | Ceramic magnetic head slider |
DE3321906A1 (de) * | 1982-06-18 | 1983-12-22 | TDK Corporation, Tokyo | Magnetisches pulver mit verbesserter dispergierbarkeit |
JPS593743A (ja) * | 1982-06-29 | 1984-01-10 | Fujitsu Ltd | 磁気ヘツド |
US4589043A (en) * | 1982-08-31 | 1986-05-13 | Grundtner Matthias J | Magnetic head having a thermoplastic or a thermosetting plastic housing |
US4631614A (en) | 1982-11-18 | 1986-12-23 | Innovative Computer Products Corporation | Tape cartridge drive head cleaner |
JPS59127214A (ja) * | 1983-01-11 | 1984-07-23 | Seiko Epson Corp | 磁気ヘツド |
US4649448A (en) * | 1983-06-03 | 1987-03-10 | Hitachi, Ltd. | Thin film magnetic head having a sliding surface |
JPS59226748A (ja) | 1983-06-06 | 1984-12-19 | Toyota Motor Corp | 車両用無段変速機の速度比制御装置 |
US4592963A (en) * | 1983-07-13 | 1986-06-03 | Alps Electric Co., Ltd. | Thin-film magnetic head and composite material substrate therefor |
US4711809A (en) * | 1983-09-26 | 1987-12-08 | Fuji Photo Film Co., Ltd. | Magnetic recording medium |
US4638387A (en) * | 1983-12-05 | 1987-01-20 | Alps Electric Co., Ltd. | Composition for sliding contact part of recording/reproducing apparatus |
DE3410529A1 (de) * | 1984-03-22 | 1985-10-03 | Fa. J. Eberspächer, 7300 Esslingen | Steuereinrichtung fuer eine dosierpumpe |
US4631613A (en) * | 1984-04-16 | 1986-12-23 | Eastman Kodak Company | Thin film head having improved saturation magnetization |
GB2166668B (en) * | 1984-11-09 | 1988-03-09 | Tdk Corp | Magnetic recording medium |
JPS62277617A (ja) * | 1986-05-26 | 1987-12-02 | Ulvac Corp | 耐摩耗性磁気記録体 |
US4880687A (en) * | 1986-05-09 | 1989-11-14 | Tdk Corporation | Magnetic recording medium |
JP2727504B2 (ja) * | 1986-05-09 | 1998-03-11 | ティーディーケイ株式会社 | 磁気記録媒体 |
JPH07114016B2 (ja) | 1986-06-12 | 1995-12-06 | 株式会社東芝 | 磁気記録媒体及びその製造方法 |
-
1988
- 1988-03-10 US US07/166,215 patent/US4863809A/en not_active Expired - Lifetime
- 1988-12-14 DE DE3854963T patent/DE3854963T2/de not_active Expired - Fee Related
- 1988-12-14 EP EP95110702A patent/EP0680036B1/en not_active Expired - Lifetime
- 1988-12-14 DE DE3856398T patent/DE3856398T2/de not_active Expired - Fee Related
- 1988-12-14 EP EP88311833A patent/EP0332784B1/en not_active Expired - Lifetime
- 1988-12-14 JP JP63316085A patent/JPH01245425A/ja active Pending
- 1988-12-14 SG SG1996004556A patent/SG47052A1/en unknown
-
1998
- 1998-12-23 HK HK98115074A patent/HK1013730A1/xx not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
DE3856398T2 (de) | 2000-08-31 |
EP0332784A3 (en) | 1990-10-24 |
DE3854963D1 (de) | 1996-03-14 |
EP0680036B1 (en) | 2000-03-08 |
DE3854963T2 (de) | 1996-05-30 |
DE3856398D1 (de) | 2000-04-13 |
EP0332784A2 (en) | 1989-09-20 |
US4863809A (en) | 1989-09-05 |
SG47052A1 (en) | 1998-03-20 |
EP0332784B1 (en) | 1996-01-31 |
EP0680036A1 (en) | 1995-11-02 |
JPH01245425A (ja) | 1989-09-29 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PC | Patent ceased (i.e. patent has lapsed due to the failure to pay the renewal fee) |
Effective date: 20031214 |
|
PC | Patent ceased (i.e. patent has lapsed due to the failure to pay the renewal fee) |