KR920001447A - 자기기록매체 - Google Patents
자기기록매체 Download PDFInfo
- Publication number
- KR920001447A KR920001447A KR1019910009959A KR910009959A KR920001447A KR 920001447 A KR920001447 A KR 920001447A KR 1019910009959 A KR1019910009959 A KR 1019910009959A KR 910009959 A KR910009959 A KR 910009959A KR 920001447 A KR920001447 A KR 920001447A
- Authority
- KR
- South Korea
- Prior art keywords
- weight
- magnetic
- layer
- magnetic layer
- recording medium
- 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
-
- 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
-
- 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
- G11B5/708—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 addition of non-magnetic particles to the layer
-
- 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
- G11B5/716—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 two or more magnetic layers
-
- 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
-
- 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
-
- 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
- Y10T428/259—Silicic material
-
- 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
- Y10T428/26—Web or sheet containing structurally defined element or component, the element or component having a specified physical dimension
- Y10T428/263—Coating layer not in excess of 5 mils thick or equivalent
- Y10T428/264—Up to 3 mils
- Y10T428/265—1 mil or less
-
- 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]
- Y10T428/31652—Of asbestos
- Y10T428/31663—As siloxane, silicone or silane
Landscapes
- Magnetic Record Carriers (AREA)
- Paints Or Removers (AREA)
Abstract
내용 없음.
Description
본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음
제1도는 시작비데오테이프의 단면도.
* 도면의 주요부분에 대한 부호의 설명
(1) : 비자성지지체(베이스필름) (2) : 다층구성자성층의 하부층
(3) : 다층구성자성층의 상부층 (4) : 벡코우트층
(5) : 구슬형상입자
Claims (8)
- 비자성지지체위에 형성되는 자성층이, 적어도 2층이상의 구성으로 이루어진 자기기록매체로서, 최상부층의 자성층에 그 두께의 0.5배에서 1.5배의 입자직경의 구슬형상입자를 자성분말 100중량부에 대해서 0.1중량부에서 1중량부의 범위로 첨가하고 있는 것을 특징으로 하는 자기기록매체.
- 비자성지지체위에 형성되는 자성층이 2층으로 이루어지고, 최상부층의 자성층의 두께가 0.5㎛이고, 그 최상부층의 자성층에 0.3에서 0.7㎛의 입자직경의 구슬형상입자를 자성분말 100중량부에 대해서 0.1중량부에서 1중량부의 범위로 첨가하고 있는 것을 특징으로 하는 자기기록매체.
- 비자성지지체위에 형성되는 자성층이 2층으로 이루어지고, 최상부층의 자성층의 두께가 0.3㎛이고, 그 최상부층의 자성층에 0.15에서 0.2㎛의 입자직경의 구슬형상입자를 자성분말 100중량부에 대해서 0.1중량부에서 1중량부의 범위로 첨가하고 있는 것을 특징으로 하는 자기기록매체.
- 제1항에 있어서, 상기 구슬형상입자가 실탄계 커플링제, 티타네이트계 커플링제 혹은 탄소수 12이상의 지방산중 적어도 1종을 사용해서 표면처리를 실시하고 있는 것을 특징으로 하는 자기기록매체.
- 비자성지지체위에 형성되는 자성층이 2층으로 이루어지고, 최상부층의 자성층의 두께가 0.5㎛이고, 그 최상부층의 자성층에 이소프로필트리이소스테아로일티타네이트에 의해 표면처리한 0.3에서 0.7㎛의 입자직경의 구슬형상입자를 자성분말 100중량부에 대해서 0.1중량부에서 1중량부의 범위로 첨가하고 있는 것을 특징으로 하는 자기기록매체.
- 비자성지지체위에 형성되는 자성층이 2층으로 이루어지고, 최상부층의 자성층의 두께가 0.5㎛이고, 그 최상부층의 자성층에 탄소수 12이상의 지방산과 3-아미노프로필트리에톡시실란에 의해 표면처리한 0.3에서 0.7㎛의 입자직경의 구슬형상입자를 자성분말 100중량부에 대해서 0.1중량부에서 1중량부의 범위로 첨가하고 있는 것을 특징으로 하는 자기기록매체.
- 비자성지지체위에 형성되는 자성층이 2층으로 이루어지고, 최상부층의 자성층의 두께가 0.3㎛이고, 그 최상부층의 이소프로필트리이소스테아로일티타네이트에 의해 표면처리한 0.15에서 0.2㎛의 입자직경의 구슬형상입자를 자성분말 100중량부에 대해서 0.1중량부에 대해서 0.1중량부의 범위로 첨가하고 있는 것을 특징으로 하는 자기기록매체.
- 비자성지지체위에 형성되는 자성층이 2층으로 이루어지고, 최상부층의 자성층의 두께가 0.3㎛이고, 그 최상부층의 자성층에 탄소수 12이상의 지방산과 3-아미노프로필트리에톡시실란에 의해 표면처리한 0.15에서 0.2㎛의 입자직경의 구슬형상입자를 자성분말 100중량부에 대해서 0.1중량부에서 1중량부의 범위로 첨가하고 있는 것을 특징으로 하는 자기기록매체.※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2-160534 | 1990-06-19 | ||
JP2160534A JPH0449519A (ja) | 1990-06-19 | 1990-06-19 | 磁気記録媒体 |
Publications (2)
Publication Number | Publication Date |
---|---|
KR920001447A true KR920001447A (ko) | 1992-01-30 |
KR950007134B1 KR950007134B1 (ko) | 1995-06-30 |
Family
ID=15717056
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
KR1019910009959A KR950007134B1 (ko) | 1990-06-19 | 1991-06-17 | 자기기록매체 |
Country Status (5)
Country | Link |
---|---|
US (1) | US5503922A (ko) |
EP (1) | EP0462570B1 (ko) |
JP (1) | JPH0449519A (ko) |
KR (1) | KR950007134B1 (ko) |
DE (1) | DE69128215T2 (ko) |
Families Citing this family (17)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2566096B2 (ja) * | 1992-04-14 | 1996-12-25 | 富士写真フイルム株式会社 | 磁気記録媒体 |
DE4227872A1 (de) * | 1992-08-22 | 1994-02-24 | Basf Magnetics Gmbh | Magnetische Aufzeichnungsträger |
JPH06231448A (ja) * | 1992-12-28 | 1994-08-19 | Minnesota Mining & Mfg Co <3M> | 磁気記録媒体とその製造方法 |
JPH07272256A (ja) * | 1994-03-31 | 1995-10-20 | Tdk Corp | 磁気記録媒体 |
US5895707A (en) * | 1995-05-31 | 1999-04-20 | Sony Corporation | Magnetic recording medium |
JPH0935251A (ja) * | 1995-07-20 | 1997-02-07 | Fuji Photo Film Co Ltd | 磁気記録媒体 |
JPH10334458A (ja) * | 1997-06-03 | 1998-12-18 | Fuji Photo Film Co Ltd | 透明磁気記録媒体 |
US6296996B1 (en) | 1997-06-03 | 2001-10-02 | Fuji Photo Film Co., Ltd. | Transparent magnetic recording medium |
JP3300266B2 (ja) * | 1997-11-06 | 2002-07-08 | 株式会社日立製作所 | 磁気ディスク装置 |
JP2001126232A (ja) * | 1999-10-28 | 2001-05-11 | Tdk Corp | 磁気記録媒体 |
WO2004001725A1 (en) * | 2002-06-21 | 2003-12-31 | Seagate Technology Llc | Multilayer magnetic recording media |
US7158346B2 (en) * | 2003-12-23 | 2007-01-02 | Seagate Technology Llc | Heat assisted magnetic recording film including superparamagnetic nanoparticles dispersed in an antiferromagnetic or ferrimagnetic matrix |
US7704614B2 (en) * | 2006-10-20 | 2010-04-27 | Seagate Technology Llc | Process for fabricating patterned magnetic recording media |
US7816023B2 (en) * | 2007-12-21 | 2010-10-19 | Imation Corp. | Magnetic recording tape having large particles in magnetic recording layer |
US9105294B2 (en) * | 2010-03-16 | 2015-08-11 | Sony Corporation | Composite magnetic recording media |
US9324354B2 (en) | 2010-04-02 | 2016-04-26 | Sony Corporation | Barium ferrite magnetic storage media |
JP6334490B2 (ja) * | 2015-09-30 | 2018-05-30 | 富士フイルム株式会社 | 磁気記録媒体、磁気信号再生装置、および磁気記録媒体の製造方法 |
Family Cites Families (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5240847B2 (ko) * | 1972-10-05 | 1977-10-14 | ||
US4451532A (en) * | 1981-05-29 | 1984-05-29 | International Business Machines Corporation | Magnetic recording composition employing mono-dispersed spherical load-bearing particles |
JPS5979431A (ja) * | 1982-10-29 | 1984-05-08 | Konishiroku Photo Ind Co Ltd | 磁気記録媒体 |
DE3408000C2 (de) * | 1984-03-03 | 1994-05-19 | Basf Ag | Magnetische Aufzeichnungsträger |
JPS62285228A (ja) * | 1986-06-04 | 1987-12-11 | Fujitsu Ltd | 磁気デイスクの製造方法 |
JPH0770047B2 (ja) * | 1987-07-06 | 1995-07-31 | 富士写真フイルム株式会社 | 磁気記録媒体 |
JP2734508B2 (ja) * | 1987-08-20 | 1998-03-30 | ソニー株式会社 | 磁気記録媒体 |
JP2581569B2 (ja) * | 1987-10-19 | 1997-02-12 | 富士写真フイルム株式会社 | オーディオテープもしくはビデオテープ |
JP2641051B2 (ja) * | 1987-10-19 | 1997-08-13 | 富士写真フイルム株式会社 | 磁気テープ |
US5089317A (en) * | 1989-01-20 | 1992-02-18 | Fuji Photo Film Co, Ltd. | Magnetic recording medium |
-
1990
- 1990-06-19 JP JP2160534A patent/JPH0449519A/ja active Pending
-
1991
- 1991-06-17 KR KR1019910009959A patent/KR950007134B1/ko not_active IP Right Cessation
- 1991-06-18 DE DE1991628215 patent/DE69128215T2/de not_active Expired - Fee Related
- 1991-06-18 EP EP19910109982 patent/EP0462570B1/en not_active Expired - Lifetime
-
1994
- 1994-09-27 US US08/313,410 patent/US5503922A/en not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
JPH0449519A (ja) | 1992-02-18 |
EP0462570A2 (en) | 1991-12-27 |
US5503922A (en) | 1996-04-02 |
EP0462570A3 (en) | 1992-01-15 |
KR950007134B1 (ko) | 1995-06-30 |
DE69128215D1 (de) | 1998-01-02 |
DE69128215T2 (de) | 1998-03-12 |
EP0462570B1 (en) | 1997-11-19 |
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FPAY | Annual fee payment |
Payment date: 20070625 Year of fee payment: 13 |
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