IT8421347A0 - Procedimento per la produzione dimezzi per la registrazione magnetica. - Google Patents
Procedimento per la produzione dimezzi per la registrazione magnetica.Info
- Publication number
- IT8421347A0 IT8421347A0 IT8421347A IT2134784A IT8421347A0 IT 8421347 A0 IT8421347 A0 IT 8421347A0 IT 8421347 A IT8421347 A IT 8421347A IT 2134784 A IT2134784 A IT 2134784A IT 8421347 A0 IT8421347 A0 IT 8421347A0
- Authority
- IT
- Italy
- Prior art keywords
- media
- procedure
- production
- magnetic recording
- recording
- Prior art date
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
- C25D11/00—Electrolytic coating by surface reaction, i.e. forming conversion layers
- C25D11/02—Anodisation
- C25D11/04—Anodisation of aluminium or alloys based thereon
- C25D11/18—After-treatment, e.g. pore-sealing
-
- 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
- Y10S205/00—Electrolysis: processes, compositions used therein, and methods of preparing the compositions
- Y10S205/917—Treatment of workpiece between coating steps
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Manufacturing Of Magnetic Record Carriers (AREA)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP10397883A JPS59229738A (ja) | 1983-06-10 | 1983-06-10 | 磁気記録用アルミニウム材の製造法 |
JP18776683A JPS6082694A (ja) | 1983-10-07 | 1983-10-07 | 磁気記録用アルミニウム材の製造法 |
Publications (2)
Publication Number | Publication Date |
---|---|
IT8421347A0 true IT8421347A0 (it) | 1984-06-11 |
IT1174167B IT1174167B (it) | 1987-07-01 |
Family
ID=26444542
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
IT21347/84A IT1174167B (it) | 1983-06-10 | 1984-06-11 | Procentimento per la produzione di mezzi per la registrazione magnetica |
Country Status (6)
Country | Link |
---|---|
US (1) | US4548682A (it) |
DE (1) | DE3421442A1 (it) |
FR (1) | FR2548813A1 (it) |
GB (1) | GB2142043B (it) |
IT (1) | IT1174167B (it) |
NL (1) | NL8401849A (it) |
Families Citing this family (29)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4650708A (en) * | 1983-05-28 | 1987-03-17 | Toshiro Takahashi | Magnetic recording material and a method for producing the same |
JPS60193126A (ja) * | 1984-03-13 | 1985-10-01 | Anelva Corp | 垂直磁化フレキシブルデイスク |
JPS60231921A (ja) * | 1984-05-01 | 1985-11-18 | Kobe Steel Ltd | 磁気デイスク用基盤の表面処理方法 |
JPS61120350A (ja) * | 1984-11-16 | 1986-06-07 | Toshiro Takahashi | 磁気記録媒体の製造方法 |
WO1986004618A1 (en) * | 1985-02-06 | 1986-08-14 | Fujitsu Limited | Process for forming composite aluminum film |
JPH0727663B2 (ja) * | 1985-04-03 | 1995-03-29 | ヤマハ株式会社 | 光磁気記録媒体およびその製法 |
EP0199271A3 (en) * | 1985-04-18 | 1987-10-14 | Aluminum Company Of America | Improved magnetic recording member |
JPS63167409A (ja) * | 1986-12-27 | 1988-07-11 | Yamaha Corp | 磁気記録体 |
US4808279A (en) * | 1986-10-02 | 1989-02-28 | The University Of Toronto Innovations Foundation | Process for preparing magnetic recording material |
US5240768A (en) * | 1987-06-12 | 1993-08-31 | Minnesota Mining And Manufacturing Company | Articles containing metal fibers |
JPS6429710A (en) * | 1987-07-24 | 1989-01-31 | Alps Electric Co Ltd | Magnetic recording medium for magnetic type encoder |
US5047274A (en) * | 1987-09-28 | 1991-09-10 | Noboru Tsuya | Annodized aluminum substrate for a magnetic recording disk in which pores are filled with a non magnetic material and the surface polished and etched |
US5209837A (en) * | 1987-09-30 | 1993-05-11 | Noboru Tsuya | Process for preparing magnetic disk |
JPH0191319A (ja) * | 1987-09-30 | 1989-04-11 | Noboru Tsuya | 磁気ディスクの製造方法 |
JPH07119151B2 (ja) * | 1987-12-07 | 1995-12-20 | 富士写真フイルム株式会社 | 平版印刷版用支持体 |
JP2923790B2 (ja) * | 1989-06-05 | 1999-07-26 | 日立マクセル株式会社 | 磁気記録媒体 |
US5427675A (en) * | 1991-10-29 | 1995-06-27 | Teijin Seiki Co., Ltd. | Method of manufacturing article having magnetic patterns |
US5681441A (en) * | 1992-12-22 | 1997-10-28 | Elf Technologies, Inc. | Method for electroplating a substrate containing an electroplateable pattern |
KR0131179B1 (ko) * | 1993-02-22 | 1998-04-14 | 슌뻬이 야마자끼 | 전자회로 제조프로세스 |
DE4444585A1 (de) * | 1994-12-14 | 1996-06-27 | Siemens Ag | Aufzeichnungsmedium zu einer hochdichten Datenspeicherung und Verfahren zu dessen Herstellung |
US6764738B1 (en) * | 1998-02-10 | 2004-07-20 | Seagate Technology Llc | Magnetic recording medium with patterned substrate |
US6808741B1 (en) * | 2001-10-26 | 2004-10-26 | Seagate Technology Llc | In-line, pass-by method for vapor lubrication |
US20080074786A1 (en) * | 2006-09-21 | 2008-03-27 | Canon Kabushiki Kaisha | Magnetic recording medium and method of manufacturing the same |
JP2009037706A (ja) * | 2007-08-02 | 2009-02-19 | Canon Inc | 構造体及びその製造方法 |
FR2922899B1 (fr) * | 2007-10-26 | 2010-11-26 | Univ Toulouse | Procede de fabrication d'une structure poreuse ordonnee a partir d'un substrat d'aluminium |
JP2011170905A (ja) * | 2010-02-16 | 2011-09-01 | Fuji Electric Device Technology Co Ltd | ディスクリートトラック構造を有する磁気記録媒体の製造方法 |
US9267218B2 (en) | 2011-09-02 | 2016-02-23 | General Electric Company | Protective coating for titanium last stage buckets |
CN103173834A (zh) * | 2011-12-23 | 2013-06-26 | 深圳富泰宏精密工业有限公司 | 铝或铝合金表面处理方法及制品 |
CN108188152B (zh) * | 2017-12-30 | 2020-09-25 | 北京工业大学 | 一种去除废旧快淬粘结钕铁硼磁粉中碳氧的方法 |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3886052A (en) * | 1970-07-20 | 1975-05-27 | Digital Equipment Corp | Method of making a magnetic recording disc |
US4109287A (en) * | 1972-04-14 | 1978-08-22 | Pilot Man-Nun-Hitsu Kabushiki Kaisha | Process for recording information or sound and process for preparation of recording materials used therefor |
NZ189336A (en) * | 1978-01-17 | 1980-08-26 | Alcan Res & Dev | Coloured anodic oxide films on aluminium |
DE3117931C2 (de) * | 1980-05-06 | 1985-07-25 | Nippon Electric Co., Ltd., Tokio/Tokyo | Magnetischer Aufzeichnungsträger und Verfahren zu seiner Herstellung |
JPS57143729A (en) * | 1981-02-27 | 1982-09-06 | Fuji Photo Film Co Ltd | Magnetic recording medium |
-
1984
- 1984-06-08 GB GB08414656A patent/GB2142043B/en not_active Expired
- 1984-06-08 DE DE19843421442 patent/DE3421442A1/de active Granted
- 1984-06-08 US US06/618,512 patent/US4548682A/en not_active Expired - Fee Related
- 1984-06-11 IT IT21347/84A patent/IT1174167B/it active
- 1984-06-12 NL NL8401849A patent/NL8401849A/nl not_active Application Discontinuation
- 1984-06-12 FR FR8409271A patent/FR2548813A1/fr active Pending
Also Published As
Publication number | Publication date |
---|---|
US4548682A (en) | 1985-10-22 |
IT1174167B (it) | 1987-07-01 |
FR2548813A1 (fr) | 1985-01-11 |
GB2142043B (en) | 1986-12-10 |
NL8401849A (nl) | 1985-01-02 |
GB2142043A (en) | 1985-01-09 |
GB8414656D0 (en) | 1984-07-11 |
DE3421442C2 (it) | 1988-03-03 |
DE3421442A1 (de) | 1984-12-13 |
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