KR870009341A - 자기 기록 매체 - Google Patents
자기 기록 매체 Download PDFInfo
- Publication number
- KR870009341A KR870009341A KR870001496A KR870001496A KR870009341A KR 870009341 A KR870009341 A KR 870009341A KR 870001496 A KR870001496 A KR 870001496A KR 870001496 A KR870001496 A KR 870001496A KR 870009341 A KR870009341 A KR 870009341A
- Authority
- KR
- South Korea
- Prior art keywords
- magnetic
- magnetic recording
- recording medium
- medium according
- recording media
- 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
- G11B5/706—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 composition of the magnetic material
-
- 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
- G11B5/706—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 composition of the magnetic material
- G11B5/70626—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 composition of the magnetic material containing non-metallic substances
- G11B5/70642—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 composition of the magnetic material containing non-metallic substances iron oxides
- G11B5/70678—Ferrites
-
- 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
- G11B5/71—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 lubricant
-
- 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
- G11B5/714—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 dimension of the magnetic 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
- 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
Landscapes
- Magnetic Record Carriers (AREA)
- Paints Or Removers (AREA)
Abstract
내용 없음
Description
본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음
Claims (5)
- 기체위에 6방정 페라이트 자성분말을 포함하는 자성층을 마련한 자기 기록 매체에 있어서, 자성층중의 6방정 페라이트 자성분말의 충진율을 35용량% 이하로 한 것을 특징으로 하는 자기 기록 매체.
- 6방정 페라이트 자성분말이, 판의 지름 0.05㎛이상의 6방정 페라이트 자성분말인 특허 청구의 범위 제1항 기재의 자기 기록 매체.
- 자성층 중에 구멍이 20용량% 이상 존재하는 특허 청구의 범위 제1항과 제2항 기재의 자기 기록 매체.
- 자성층중의 구멍에 윤활제가 함유된 특허 청구의 범위 제3항 기재의 자기 기록 매체.
- 자기 기록 매체가 자기 디스크인 특허 청구의 범위 제1항 내지 제4항 기재의 자기 기록 매체.※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP61063172A JPS62219324A (ja) | 1986-03-20 | 1986-03-20 | 磁気記録媒体 |
JP63172 | 1986-03-20 |
Publications (1)
Publication Number | Publication Date |
---|---|
KR870009341A true KR870009341A (ko) | 1987-10-26 |
Family
ID=13221573
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
KR870001496A KR870009341A (ko) | 1986-03-20 | 1987-02-23 | 자기 기록 매체 |
Country Status (5)
Country | Link |
---|---|
US (1) | US4792483A (ko) |
EP (1) | EP0238068B1 (ko) |
JP (1) | JPS62219324A (ko) |
KR (1) | KR870009341A (ko) |
DE (1) | DE3788295T2 (ko) |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0792907B2 (ja) * | 1986-05-09 | 1995-10-09 | 日立マクセル株式会社 | 磁気記録媒体 |
JPS63229616A (ja) * | 1987-03-18 | 1988-09-26 | Toshiba Corp | 磁気記録媒体 |
US5126215A (en) * | 1988-04-13 | 1992-06-30 | Fuji Photo Film Co., Ltd. | Magnetic recording medium having a surface with pores of specified average inlet diameter and wide pore size distribution controlled by calender treatment |
JPH01300420A (ja) * | 1988-05-30 | 1989-12-04 | Hitachi Maxell Ltd | 磁気記録媒体 |
KR900002242A (ko) * | 1988-07-14 | 1990-02-28 | 나가이 아쯔시 | 자기디스크 카트리지 |
JP6635216B1 (ja) * | 2019-08-16 | 2020-01-22 | ソニー株式会社 | 磁気記録媒体、磁気記録再生装置および磁気記録媒体カートリッジ |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3113859A1 (de) * | 1980-04-07 | 1982-01-28 | Fuji Photo Film Co., Ltd., Minami-Ashigara, Kanagawa | Magnetisches aufzeichnungsmaterial |
JPS58203625A (ja) * | 1982-05-24 | 1983-11-28 | Toshiba Corp | 磁気記録媒体 |
JPS6070518A (ja) * | 1983-09-28 | 1985-04-22 | Toshiba Corp | 磁気記録媒体 |
JPS60119625A (ja) * | 1983-12-01 | 1985-06-27 | Fuji Photo Film Co Ltd | 磁気記録媒体 |
JPS60143429A (ja) * | 1983-12-29 | 1985-07-29 | Fuji Photo Film Co Ltd | 磁気記録媒体 |
US4626463A (en) * | 1984-09-26 | 1986-12-02 | Minnesota Mining And Manufacturing Company | Diskette having wear-resistant magnetizable layer |
US4567096A (en) * | 1985-03-21 | 1986-01-28 | Piltingsrud Douglas H | Hydrated alumina binder system |
-
1986
- 1986-03-20 JP JP61063172A patent/JPS62219324A/ja active Pending
-
1987
- 1987-02-23 KR KR870001496A patent/KR870009341A/ko not_active Application Discontinuation
- 1987-03-18 DE DE3788295T patent/DE3788295T2/de not_active Expired - Fee Related
- 1987-03-18 EP EP87103988A patent/EP0238068B1/en not_active Expired - Lifetime
- 1987-03-20 US US07/028,565 patent/US4792483A/en not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
JPS62219324A (ja) | 1987-09-26 |
EP0238068B1 (en) | 1993-12-01 |
DE3788295D1 (de) | 1994-01-13 |
EP0238068A2 (en) | 1987-09-23 |
DE3788295T2 (de) | 1994-06-16 |
EP0238068A3 (en) | 1989-08-30 |
US4792483A (en) | 1988-12-20 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
A201 | Request for examination | ||
E902 | Notification of reason for refusal | ||
E601 | Decision to refuse application |