BR8504672A - Disqueta incluindo um disco de gravacao magnetica e metodo de fabricacao de um disco de gravacao magnetica para um disquete - Google Patents

Disqueta incluindo um disco de gravacao magnetica e metodo de fabricacao de um disco de gravacao magnetica para um disquete

Info

Publication number
BR8504672A
BR8504672A BR8504672A BR8504672A BR8504672A BR 8504672 A BR8504672 A BR 8504672A BR 8504672 A BR8504672 A BR 8504672A BR 8504672 A BR8504672 A BR 8504672A BR 8504672 A BR8504672 A BR 8504672A
Authority
BR
Brazil
Prior art keywords
magnetic recording
diskette
recording disk
manufacturing
disk
Prior art date
Application number
BR8504672A
Other languages
English (en)
Inventor
Chiaki Fujishiro
Mitsuhiro Kominami
Original Assignee
Minnesota Mining & Mfg
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Minnesota Mining & Mfg filed Critical Minnesota Mining & Mfg
Publication of BR8504672A publication Critical patent/BR8504672A/pt

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
    • 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
    • G11B5/706—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
    • G11B5/70652—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 gamma - Fe2 O3
    • 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
    • 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.]
    • Y10T428/2419—Fold at edge
    • Y10T428/24215—Acute or reverse fold of exterior component
    • Y10T428/24231—At opposed marginal edges
    • Y10T428/2424—Annular cover
    • Y10T428/24248—One piece
    • 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.]
    • Y10T428/24273—Structurally defined web or sheet [e.g., overall dimension, etc.] including aperture
    • 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.]
    • Y10T428/24372—Particulate matter
    • Y10T428/24413—Metal or metal compound
    • 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
BR8504672A 1984-09-26 1985-09-24 Disqueta incluindo um disco de gravacao magnetica e metodo de fabricacao de um disco de gravacao magnetica para um disquete BR8504672A (pt)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US06/654,378 US4626463A (en) 1984-09-26 1984-09-26 Diskette having wear-resistant magnetizable layer

Publications (1)

Publication Number Publication Date
BR8504672A true BR8504672A (pt) 1986-07-15

Family

ID=24624618

Family Applications (1)

Application Number Title Priority Date Filing Date
BR8504672A BR8504672A (pt) 1984-09-26 1985-09-24 Disqueta incluindo um disco de gravacao magnetica e metodo de fabricacao de um disco de gravacao magnetica para um disquete

Country Status (9)

Country Link
US (1) US4626463A (pt)
EP (1) EP0176368B1 (pt)
JP (1) JPH0719367B2 (pt)
KR (1) KR930007055B1 (pt)
AU (1) AU577153B2 (pt)
BR (1) BR8504672A (pt)
CA (1) CA1241742A (pt)
DE (1) DE3575803D1 (pt)
MX (1) MX167708B (pt)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL8402136A (nl) * 1984-07-05 1986-02-03 Pd Magnetics Bv Magnetisch registratie element en methode voor de vervaardiging ervan.
JPH0760508B2 (ja) * 1985-12-10 1995-06-28 ティーディーケイ株式会社 磁気記録ディスクおよびその製造方法
JPS62219324A (ja) * 1986-03-20 1987-09-26 Hitachi Maxell Ltd 磁気記録媒体
FR2642004B1 (fr) * 1988-12-30 1995-02-03 Oce Graphics France Imprimante thermique grande largeur
EP0378154B1 (en) * 1989-01-11 1995-11-08 Toray Industries, Inc. Biaxially oriented polyester film
US5284699A (en) * 1989-01-11 1994-02-08 Toray Industries, Inc. Biaxially oriented polyester film
US5811179A (en) * 1993-04-06 1998-09-22 Matsushita Electric Industrial Co., Ltd. Magnetic recording medium
US5800656A (en) * 1996-07-01 1998-09-01 Avery Dennison Corporation Heat-transfer label including phenoxy protective lacquer layer
US6458453B1 (en) 1999-04-30 2002-10-01 Toda Kogyo Corporation Magnetic recording medium
US8795855B2 (en) 2007-01-30 2014-08-05 Global Oled Technology Llc OLEDs having high efficiency and excellent lifetime

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2256493B1 (pt) * 1973-12-28 1979-04-06 Kodak Pathe
FR2280950A1 (fr) * 1974-07-30 1976-02-27 Kodak Pathe Nouvelle bande magnetique a incurvation transversale amelioree
FR2353110A1 (fr) * 1976-03-12 1977-12-23 Kodak Pathe Nouveau produit d'enregistrement magnetique et procede pour sa preparation
GB2008307B (en) * 1977-11-16 1982-05-19 Hitachi Maxell Magnetic recording medium
ZA803618B (en) * 1979-06-22 1981-07-29 R Whitehouse A rotary fluid machine, such as an engine, a pump, a compressor, a brake
DE3113859A1 (de) * 1980-04-07 1982-01-28 Fuji Photo Film Co., Ltd., Minami-Ashigara, Kanagawa Magnetisches aufzeichnungsmaterial
JPS57135441A (en) * 1981-02-13 1982-08-21 Sony Corp Magnetic recording medium
JPS57162127A (en) * 1981-03-31 1982-10-05 Fuji Photo Film Co Ltd Magnetic recording body
JPS57179945A (en) * 1981-04-28 1982-11-05 Fuji Photo Film Co Ltd Magnetic recording medium
US4405684A (en) * 1981-09-21 1983-09-20 International Business Machines Corporation Rigid magnetic coating composition with thermosetting binder for hard file
US4587157A (en) * 1982-10-25 1986-05-06 Verbatim Corp. Wear resisting undercoat for thin film magnetic recording media
US4546035A (en) * 1983-06-27 1985-10-08 International Business Machines Corporation Polymeric additives for magnetic coating materials

Also Published As

Publication number Publication date
AU577153B2 (en) 1988-09-15
JPS6187219A (ja) 1986-05-02
MX167708B (es) 1993-04-07
EP0176368A3 (en) 1987-10-07
AU4749185A (en) 1986-04-10
EP0176368A2 (en) 1986-04-02
KR860002784A (ko) 1986-04-30
JPH0719367B2 (ja) 1995-03-06
KR930007055B1 (ko) 1993-07-26
EP0176368B1 (en) 1990-01-31
US4626463A (en) 1986-12-02
DE3575803D1 (de) 1990-03-08
CA1241742A (en) 1988-09-06

Similar Documents

Publication Publication Date Title
KR850008737A (ko) 정보 기록 매체 원반 및 그 제작법
KR850007517A (ko) 자기디스크카세트
DE3568658D1 (en) Magnetic recording medium and manufacturing method thereof
KR910013066A (ko) 강체자기디스크 드라이브용 헤드 코어 슬라이더 및 그 제조방법
EP0173844A3 (en) A head alignment servo-system for a multiple magnetic recording disk file and its method of use
DE3574191D1 (en) System for perpendicular recording and method for fabricating a magnetic head
GB8515504D0 (en) Recording information on magnetic disk
BR8504672A (pt) Disqueta incluindo um disco de gravacao magnetica e metodo de fabricacao de um disco de gravacao magnetica para um disquete
KR860005336A (ko) 강자성의 금속박막 자기 기록 매체 및 그 제조방법
KR860005345A (ko) 자기디스크 기록재생장치
KR910015215A (ko) 자기 기록매체 및 이의 제조방법
IT8548826A0 (it) Testina magnetica trasduttrice e metodo per la sua fabbricazione
MX165085B (es) Subconjunto de cinta para un casette de cinta y metodo para su fabricacion
CS8709038A2 (en) Method of gap treatment between two magnetic heads arranged on one recording disk
EP0184034A3 (en) Perpendicular magnetic recording medium and method of producing same
DE3467947D1 (en) Substrate for a magnetic disc and method manufacturing same
EP0089609A3 (en) Magnetic recording medium and method of manufacturing a magnetic recording medium
DE3562685D1 (en) Magnetic recording element and method of manufacturing same
EP0189905A3 (en) Method of manufacturing recording discs
EP0223530A3 (en) Method of recording on magnetooptical disc
EP0139403A3 (en) Method of producing magnetic recording disks
MX170001B (es) Metodo para fabricar un disco de grabacion magnetica
EP0212394A3 (en) A method of making a magnetic record disk
ES540911A0 (es) Un aparato grabador y-o reproductor para una cinta magnetica
GB2153851B (en) Ferro-magnetic layer of magnetic recording media

Legal Events

Date Code Title Description
B21A Patent or certificate of addition expired [chapter 21.1 patent gazette]

Free format text: PATENTE EXTINTA EM 24/09/2000