DE3677942D1 - Magnetischer aufzeichnungstraeger mit vertikaler aufzeichnung. - Google Patents
Magnetischer aufzeichnungstraeger mit vertikaler aufzeichnung.Info
- Publication number
- DE3677942D1 DE3677942D1 DE8686117859T DE3677942T DE3677942D1 DE 3677942 D1 DE3677942 D1 DE 3677942D1 DE 8686117859 T DE8686117859 T DE 8686117859T DE 3677942 T DE3677942 T DE 3677942T DE 3677942 D1 DE3677942 D1 DE 3677942D1
- Authority
- DE
- Germany
- Prior art keywords
- recording
- vertical
- carrier
- magnetic recording
- magnetic
- 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 - Lifetime
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
- G11B5/64—Record carriers characterised by the selection of the material comprising only the magnetic material without bonding agent
- G11B5/65—Record carriers characterised by the selection of the material comprising only the magnetic material without bonding agent characterised by its composition
- G11B5/658—Record carriers characterised by the selection of the material comprising only the magnetic material without bonding agent characterised by its composition containing oxygen, e.g. molecular oxygen or magnetic oxide
-
- 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
-
- 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
- Y10T428/24—Structurally defined web or sheet [e.g., overall dimension, etc.]
- Y10T428/24355—Continuous and nonuniform or irregular surface on layer or component [e.g., roofing, etc.]
Landscapes
- Physics & Mathematics (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Magnetic Record Carriers (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP60295059A JPH0795369B2 (ja) | 1985-12-25 | 1985-12-25 | 垂直磁気記録媒体 |
Publications (1)
Publication Number | Publication Date |
---|---|
DE3677942D1 true DE3677942D1 (de) | 1991-04-11 |
Family
ID=17815780
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE8686117859T Expired - Lifetime DE3677942D1 (de) | 1985-12-25 | 1986-12-22 | Magnetischer aufzeichnungstraeger mit vertikaler aufzeichnung. |
Country Status (4)
Country | Link |
---|---|
US (1) | US4762742A (de) |
EP (1) | EP0230034B1 (de) |
JP (1) | JPH0795369B2 (de) |
DE (1) | DE3677942D1 (de) |
Families Citing this family (16)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5985402A (en) * | 1986-12-19 | 1999-11-16 | Hitachi, Ltd. | Magnetic disk and its manufacturing method |
US5737159A (en) * | 1987-07-29 | 1998-04-07 | Hitachi, Ltd. | Magnetic disk and its manufacturing method |
JPH01154314A (ja) * | 1987-12-10 | 1989-06-16 | Fuji Electric Co Ltd | 磁気ディスク |
JP2698086B2 (ja) * | 1988-01-27 | 1998-01-19 | 株式会社日立製作所 | 磁気ディスク用基板及びその製造方法 |
US4892634A (en) * | 1988-10-03 | 1990-01-09 | Eastman Kodak Company | Method of preparing thermo-magneto-optic recording elements |
US5132173A (en) * | 1989-02-10 | 1992-07-21 | Canon Kabushiki Kaisha | Magnetic recording medium having a silicon oxide protective layer with an electrical specific resistance of from 3.3×1013 to 5.0×15 ohm.cm |
US5202810A (en) * | 1989-04-27 | 1993-04-13 | Hitachi, Ltd. | Magnetic disk having an improved surface configuration |
JPH05114127A (ja) * | 1991-10-23 | 1993-05-07 | Hitachi Ltd | 磁気デイスク及びその製造方法並びに磁気デイスク装置 |
JPH06338049A (ja) * | 1993-05-28 | 1994-12-06 | Sony Corp | 磁気記録媒体 |
US5939170A (en) * | 1993-12-28 | 1999-08-17 | Hoya Corporation | Magnetic recording medium |
US5825596A (en) * | 1996-02-13 | 1998-10-20 | Kabushiki Kaisha Toshiba | Hard disk drive |
US6852432B2 (en) * | 2000-06-30 | 2005-02-08 | Hitachi, Ltd. | Magnetic recording media and magnetic disk apparatus |
GB0019293D0 (en) * | 2000-08-07 | 2000-09-27 | Federal Mogul Friction Product | Magnetic clamping arrangement |
US6667118B1 (en) | 2000-09-05 | 2003-12-23 | Seagate Technology Llc | Texture-induced magnetic anisotropy of soft underlayers for perpendicular recording media |
JP2003085724A (ja) * | 2001-09-13 | 2003-03-20 | Sony Corp | 磁気記録媒体 |
KR100725023B1 (ko) * | 2006-10-16 | 2007-06-07 | 제일모직주식회사 | 카도계 수지를 함유한 수지 조성물 및 그에 의한 패턴의 제조방법, 이를 이용한 컬러필터 |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0061769B1 (de) * | 1981-03-30 | 1987-04-01 | Teijin Limited | Magnetisches Aufzeichnungsmedium |
JPS5814319A (ja) * | 1981-07-20 | 1983-01-27 | Teijin Ltd | 垂直磁気記録媒体 |
DE3277996D1 (en) * | 1981-10-15 | 1988-02-18 | Matsushita Electric Ind Co Ltd | Magnetic recording medium |
EP0109667B1 (de) * | 1982-11-19 | 1987-04-01 | Matsushita Electric Industrial Co., Ltd. | Magnetisches Aufzeichnungsmedium |
US4567083A (en) * | 1983-10-17 | 1986-01-28 | Tdk Corporation | Magnetic recording medium |
-
1985
- 1985-12-25 JP JP60295059A patent/JPH0795369B2/ja not_active Expired - Lifetime
-
1986
- 1986-12-22 DE DE8686117859T patent/DE3677942D1/de not_active Expired - Lifetime
- 1986-12-22 EP EP86117859A patent/EP0230034B1/de not_active Expired - Lifetime
- 1986-12-23 US US06/945,549 patent/US4762742A/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
EP0230034B1 (de) | 1991-03-06 |
JPS62150519A (ja) | 1987-07-04 |
EP0230034A3 (en) | 1988-10-12 |
JPH0795369B2 (ja) | 1995-10-11 |
US4762742A (en) | 1988-08-09 |
EP0230034A2 (de) | 1987-07-29 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
8364 | No opposition during term of opposition | ||
8320 | Willingness to grant licences declared (paragraph 23) | ||
8339 | Ceased/non-payment of the annual fee |