DE69110117D1 - Magnetischer Aufzeichnungsträger. - Google Patents
Magnetischer Aufzeichnungsträger.Info
- Publication number
- DE69110117D1 DE69110117D1 DE69110117T DE69110117T DE69110117D1 DE 69110117 D1 DE69110117 D1 DE 69110117D1 DE 69110117 T DE69110117 T DE 69110117T DE 69110117 T DE69110117 T DE 69110117T DE 69110117 D1 DE69110117 D1 DE 69110117D1
- Authority
- DE
- Germany
- Prior art keywords
- record carrier
- magnetic record
- magnetic
- carrier
- record
- 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
-
- 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
- G11B5/702—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 characterised by the bonding agent
- G11B5/7021—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 characterised by the bonding agent containing a polyurethane or a polyisocyanate
-
- 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
- Y10T428/31504—Composite [nonstructural laminate]
- Y10T428/31551—Of polyamidoester [polyurethane, polyisocyanate, polycarbamate, etc.]
- Y10T428/31609—Particulate metal or metal compound-containing
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP41419690 | 1990-12-25 | ||
JP03081598A JP3085408B2 (ja) | 1991-03-20 | 1991-03-20 | 磁気記録媒体 |
Publications (3)
Publication Number | Publication Date |
---|---|
DE69110117D1 true DE69110117D1 (de) | 1995-07-06 |
DE69110117T2 DE69110117T2 (de) | 1996-02-15 |
DE69110117T3 DE69110117T3 (de) | 1998-10-22 |
Family
ID=26422610
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE69110117T Expired - Fee Related DE69110117T3 (de) | 1990-12-25 | 1991-12-22 | Magnetischer Aufzeichnungsträger. |
Country Status (3)
Country | Link |
---|---|
US (1) | US5415941A (de) |
EP (1) | EP0492568B2 (de) |
DE (1) | DE69110117T3 (de) |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH05298662A (ja) * | 1992-04-14 | 1993-11-12 | Fuji Photo Film Co Ltd | 磁気記録媒体用結合剤および磁気記録媒体 |
KR100304157B1 (ko) * | 1993-08-05 | 2001-11-22 | 시바타 미노루 | 자기기록매체 |
JP3494309B2 (ja) * | 1994-04-07 | 2004-02-09 | 富士写真フイルム株式会社 | 磁気記録媒体 |
US6376083B1 (en) * | 1994-09-22 | 2002-04-23 | Fuji Photo Film, Ltd. | Magnetic recording medium |
US5876833A (en) * | 1995-05-10 | 1999-03-02 | Fuji Photo Film Co., Ltd. | Magnetic recording medium containing magnetic powder and a polyurethane binder having a specified radius of gyration |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6234326A (ja) * | 1985-08-07 | 1987-02-14 | Toyobo Co Ltd | 磁気記録媒体 |
US4855377A (en) * | 1987-08-04 | 1989-08-08 | Asahi Kasei Kogyo Kabushiki Kaisha | Novel copolycarbonate |
JPH02618A (ja) * | 1987-12-16 | 1990-01-05 | Toyobo Co Ltd | 放射線硬化型樹脂及びそれを用いた磁気記録媒体 |
AU616516B2 (en) * | 1988-05-27 | 1991-10-31 | Takeda Chemical Industries Ltd. | Binders for magnetic recording media and magnetic recording media |
JPH024736A (ja) * | 1988-06-22 | 1990-01-09 | Hitachi Maxell Ltd | ポリカーボネートポリオール、芳香族ポリカーボネートポリウレタン樹脂、コーティング材、キャストフィルム、磁気記録媒体 |
DE69030981T2 (de) * | 1989-03-30 | 1997-10-23 | Toyo Boseki | Strahlungshärtbares Harz und dieses enthaltende Zusammensetzung |
US5124424A (en) * | 1989-04-26 | 1992-06-23 | Nippon Polyurethane Industry Co., Ltd. | Polyurethane resin binder for magnetic recording mediums comprising a polycarbonate polyol |
-
1991
- 1991-12-19 US US07/810,952 patent/US5415941A/en not_active Expired - Lifetime
- 1991-12-22 DE DE69110117T patent/DE69110117T3/de not_active Expired - Fee Related
- 1991-12-22 EP EP19910122095 patent/EP0492568B2/de not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
EP0492568A1 (de) | 1992-07-01 |
DE69110117T2 (de) | 1996-02-15 |
EP0492568B1 (de) | 1995-05-31 |
DE69110117T3 (de) | 1998-10-22 |
EP0492568B2 (de) | 1998-03-11 |
US5415941A (en) | 1995-05-16 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
8363 | Opposition against the patent | ||
8366 | Restricted maintained after opposition proceedings | ||
8339 | Ceased/non-payment of the annual fee |