NL8320004A - Schijfvormig magnetisch registreermedium. - Google Patents
Schijfvormig magnetisch registreermedium. Download PDFInfo
- Publication number
- NL8320004A NL8320004A NL8320004A NL8320004A NL8320004A NL 8320004 A NL8320004 A NL 8320004A NL 8320004 A NL8320004 A NL 8320004A NL 8320004 A NL8320004 A NL 8320004A NL 8320004 A NL8320004 A NL 8320004A
- Authority
- NL
- Netherlands
- Prior art keywords
- magnetic
- disc
- recording medium
- medium according
- shaped
- Prior art date
Links
Classifications
-
- 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
- G11B5/68—Record carriers characterised by the selection of the material comprising one or more layers of magnetisable material homogeneously mixed with a bonding agent
- G11B5/70—Record carriers characterised by the selection of the material comprising one or more layers of magnetisable material homogeneously mixed with a bonding agent on a base layer
-
- 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
- Y10S428/90—Magnetic feature
-
- 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
- Y10T428/25—Web or sheet containing structurally defined element or component and including a second component containing structurally defined particles
-
- 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
- Y10T428/25—Web or sheet containing structurally defined element or component and including a second component containing structurally defined particles
- Y10T428/256—Heavy metal or aluminum or compound thereof
- Y10T428/257—Iron oxide or aluminum oxide
Landscapes
- Magnetic Record Carriers (AREA)
- Paints Or Removers (AREA)
- Manufacturing Of Magnetic Record Carriers (AREA)
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP57004356A JPS58122623A (ja) | 1982-01-14 | 1982-01-14 | 円盤状磁気記録媒体 |
JP435682 | 1982-01-14 | ||
JP8300007 | 1983-01-10 | ||
PCT/JP1983/000007 WO1983002520A1 (fr) | 1982-01-14 | 1983-01-10 | Support d'enregistrement magnetique en forme de disque |
Publications (1)
Publication Number | Publication Date |
---|---|
NL8320004A true NL8320004A (nl) | 1983-12-01 |
Family
ID=11582113
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
NL8320004A NL8320004A (nl) | 1982-01-14 | 1983-01-10 | Schijfvormig magnetisch registreermedium. |
Country Status (7)
Country | Link |
---|---|
US (1) | US4788092A (fr) |
EP (1) | EP0098307B1 (fr) |
JP (1) | JPS58122623A (fr) |
DE (1) | DE3328016C2 (fr) |
GB (1) | GB2124926B (fr) |
NL (1) | NL8320004A (fr) |
WO (1) | WO1983002520A1 (fr) |
Families Citing this family (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6057526A (ja) * | 1983-09-08 | 1985-04-03 | Fuji Photo Film Co Ltd | 磁気記録媒体 |
JPS6057527A (ja) * | 1983-09-08 | 1985-04-03 | Fuji Photo Film Co Ltd | 磁気記録媒体 |
JPH0628106B2 (ja) * | 1984-02-15 | 1994-04-13 | 日立マクセル株式会社 | 磁気デイスク |
JP2669456B2 (ja) * | 1984-09-19 | 1997-10-27 | 日立マクセル株式会社 | 磁気記録再生装置 |
JPH0618063B2 (ja) * | 1984-09-19 | 1994-03-09 | 日立マクセル株式会社 | 磁気デイスク |
JPS61194628A (ja) * | 1985-02-23 | 1986-08-29 | Victor Co Of Japan Ltd | 磁気記録媒体 |
JPH0766526B2 (ja) * | 1985-06-17 | 1995-07-19 | 富士写真フイルム株式会社 | 磁気記録媒体 |
JP2610851B2 (ja) * | 1986-03-10 | 1997-05-14 | ティーディーケイ株式会社 | 磁気記録媒体およびその製造方法 |
JPH01211226A (ja) * | 1988-02-17 | 1989-08-24 | Hitachi Maxell Ltd | 磁気ディスク |
JP2655379B2 (ja) * | 1992-04-02 | 1997-09-17 | 富士写真フイルム株式会社 | 磁気記録ディスク |
Family Cites Families (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CA1010568A (en) * | 1972-02-03 | 1977-05-17 | Arvin Industries | Magnetic recording disc having circularly oriented magnetic particles and method of making same |
US3865627A (en) * | 1972-05-22 | 1975-02-11 | Minnesota Mining & Mfg | Magnetic recording medium incorporating fine acicular iron-based particles |
DE2556188C3 (de) * | 1975-12-13 | 1979-07-05 | Basf Ag, 6700 Ludwigshafen | Flexible Mehrschichtmagnetogrammträger |
JPS6011446B2 (ja) * | 1976-07-15 | 1985-03-26 | 日立マクセル株式会社 | 強磁性金属粉末の製造法 |
JPS5370397A (en) * | 1976-12-06 | 1978-06-22 | Fuji Photo Film Co Ltd | Strongly magnetic metallic powder, preparation of same and magneticrecording media emplying same |
US4208447A (en) * | 1978-06-05 | 1980-06-17 | International Business Machines Corporation | Method for disorienting magnetic particles |
JPS5853689B2 (ja) * | 1979-01-20 | 1983-11-30 | 戸田工業株式会社 | 針状晶金属鉄磁性粒子粉末の製造法 |
JPS56156934A (en) * | 1980-05-08 | 1981-12-03 | Yoshiro Nakamatsu | Uneven orientation recording medium |
JPS57150129A (en) * | 1981-03-12 | 1982-09-16 | Fuji Photo Film Co Ltd | Magnetic recording medium |
JPS57154618A (en) * | 1981-03-19 | 1982-09-24 | Sony Corp | Magnetic recording medium |
JPS586525A (ja) * | 1981-07-02 | 1983-01-14 | Toshiba Corp | 磁気記録媒体 |
JPS5817539A (ja) * | 1981-07-21 | 1983-02-01 | Sony Corp | 磁気記録媒体 |
JPS5870426A (ja) * | 1981-10-21 | 1983-04-26 | Sony Corp | 磁気記録媒体 |
JPS58119609A (ja) * | 1982-01-11 | 1983-07-16 | Fuji Photo Film Co Ltd | 磁気記録媒体 |
-
1982
- 1982-01-14 JP JP57004356A patent/JPS58122623A/ja active Granted
-
1983
- 1983-01-10 GB GB08323733A patent/GB2124926B/en not_active Expired
- 1983-01-10 NL NL8320004A patent/NL8320004A/nl active Search and Examination
- 1983-01-10 EP EP83900280A patent/EP0098307B1/fr not_active Expired
- 1983-01-10 US US06/535,011 patent/US4788092A/en not_active Expired - Lifetime
- 1983-01-10 WO PCT/JP1983/000007 patent/WO1983002520A1/fr not_active Application Discontinuation
- 1983-01-10 DE DE3328016T patent/DE3328016C2/de not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
US4788092A (en) | 1988-11-29 |
DE3328016C2 (de) | 1995-11-16 |
JPH0312374B2 (fr) | 1991-02-20 |
DE3328016T1 (de) | 1984-01-12 |
GB2124926B (en) | 1985-07-03 |
EP0098307A1 (fr) | 1984-01-18 |
JPS58122623A (ja) | 1983-07-21 |
EP0098307B1 (fr) | 1988-05-04 |
EP0098307A4 (fr) | 1986-06-11 |
GB2124926A (en) | 1984-02-29 |
GB8323733D0 (en) | 1983-10-05 |
WO1983002520A1 (fr) | 1983-07-21 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
A85 | Still pending on 85-01-01 | ||
BA | A request for search or an international-type search has been filed | ||
BB | A search report has been drawn up | ||
BC | A request for examination has been filed | ||
BN | A decision not to publish the application has become irrevocable |