DE69009912D1 - Magnetisches Aufzeichnungsmaterial. - Google Patents

Magnetisches Aufzeichnungsmaterial.

Info

Publication number
DE69009912D1
DE69009912D1 DE69009912T DE69009912T DE69009912D1 DE 69009912 D1 DE69009912 D1 DE 69009912D1 DE 69009912 T DE69009912 T DE 69009912T DE 69009912 T DE69009912 T DE 69009912T DE 69009912 D1 DE69009912 D1 DE 69009912D1
Authority
DE
Germany
Prior art keywords
magnetic recording
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 - Fee Related
Application number
DE69009912T
Other languages
English (en)
Other versions
DE69009912T2 (de
Inventor
Hedtoshi Yanai
Akira Ishikawa
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Kao Corp
Original Assignee
Kao Corp
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
Family has litigation
Priority to JP22907789A priority Critical patent/JPH0393032A/ja
Application filed by Kao Corp filed Critical Kao Corp
Application granted granted Critical
Publication of DE69009912D1 publication Critical patent/DE69009912D1/de
Publication of DE69009912T2 publication Critical patent/DE69009912T2/de
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=16886384&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=DE69009912(D1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • GPHYSICS
    • G11INFORMATION STORAGE
    • G11BINFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B5/00Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor
    • G11B5/62Record carriers characterised by the selection of the material
    • G11B5/73Base layers, i.e. all non-magnetic layers lying under a lowermost magnetic recording layer, e.g. including any non-magnetic layer in between a first magnetic recording layer and either an underlying substrate or a soft magnetic underlayer
    • G11B5/735Base layers, i.e. all non-magnetic layers lying under a lowermost magnetic recording layer, e.g. including any non-magnetic layer in between a first magnetic recording layer and either an underlying substrate or a soft magnetic underlayer characterised by the back layer
    • G11B5/7356Base layers, i.e. all non-magnetic layers lying under a lowermost magnetic recording layer, e.g. including any non-magnetic layer in between a first magnetic recording layer and either an underlying substrate or a soft magnetic underlayer characterised by the back layer comprising non-magnetic particles in the back layer, e.g. particles of TiO2, ZnO or SiO2
    • YGENERAL 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
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10STECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S428/00Stock material or miscellaneous articles
    • Y10S428/90Magnetic feature
    • YGENERAL 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
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00Stock material or miscellaneous articles
    • Y10T428/25Web or sheet containing structurally defined element or component and including a second component containing structurally defined particles
    • YGENERAL 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
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00Stock material or miscellaneous articles
    • Y10T428/29Coated or structually defined flake, particle, cell, strand, strand portion, rod, filament, macroscopic fiber or mass thereof
    • Y10T428/2982Particulate matter [e.g., sphere, flake, etc.]
    • YGENERAL 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
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00Stock material or miscellaneous articles
    • Y10T428/31504Composite [nonstructural laminate]
    • Y10T428/31551Of polyamidoester [polyurethane, polyisocyanate, polycarbamate, etc.]
    • Y10T428/31591Next to cellulosic
DE1990609912 1989-09-04 1990-09-04 Magnetisches Aufzeichnungsmaterial. Expired - Fee Related DE69009912T2 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP22907789A JPH0393032A (en) 1989-09-04 1989-09-04 Magnetic recording medium

Publications (2)

Publication Number Publication Date
DE69009912D1 true DE69009912D1 (de) 1994-07-21
DE69009912T2 DE69009912T2 (de) 1994-11-24

Family

ID=16886384

Family Applications (1)

Application Number Title Priority Date Filing Date
DE1990609912 Expired - Fee Related DE69009912T2 (de) 1989-09-04 1990-09-04 Magnetisches Aufzeichnungsmaterial.

Country Status (4)

Country Link
US (1) US5069963A (de)
EP (1) EP0416548B1 (de)
JP (1) JPH0393032A (de)
DE (1) DE69009912T2 (de)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE69407415T2 (de) * 1993-06-30 1998-05-14 Imation Corp Magnetische aufzeichnungsmedien mit neuem vernetzungsmittel
US5705253A (en) * 1994-06-13 1998-01-06 Minnesota Mining And Manufacturing Company Video recording tapes suitable for high speed contact duplication
JP2000268350A (ja) * 1999-03-18 2000-09-29 Sony Corp 磁気記録媒体
US9114127B2 (en) * 2007-05-15 2015-08-25 Richard C. K. Yen Biologic devices for hemostasis

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5930233A (en) * 1982-08-10 1984-02-17 Fuji Photo Film Co Ltd Magnetic recording medium
JPH0479054B2 (de) * 1983-05-16 1992-12-14 Fuji Photo Film Co Ltd
JPH0533448B2 (de) * 1983-10-04 1993-05-19 Sony Corp
DE3437887A1 (de) * 1983-10-17 1985-05-23 TDK Corporation, Tokio/Tokyo Magnetischer aufzeichnungstraeger
JPS60131623A (en) * 1983-12-19 1985-07-13 Fuji Photo Film Co Ltd Magnetic recording medium
JPS60185225A (en) * 1984-03-05 1985-09-20 Matsushita Electric Ind Co Ltd Magnetic recording medium
JPS6399276A (en) * 1986-05-27 1988-04-30 Asahi Chem Ind Co Ltd Coating composition for magnetic recording medium
JPS6362027A (en) * 1986-09-03 1988-03-18 Fujitsu Ltd Printer control system
JPS63167418A (en) * 1986-12-29 1988-07-11 Victor Co Of Japan Ltd Magnetic recording medium

Also Published As

Publication number Publication date
DE69009912T2 (de) 1994-11-24
EP0416548A3 (en) 1991-09-25
EP0416548B1 (de) 1994-06-15
EP0416548A2 (de) 1991-03-13
JPH0393032A (en) 1991-04-18
US5069963A (en) 1991-12-03

Similar Documents

Publication Publication Date Title
DE69113908T2 (de) Aufzeichnungsmaterial.
DE69031250D1 (de) Magnetisches Material
NO895117D0 (no) Magnetostriktiv transduser.
DE68916686T2 (de) Aufzeichnungsmaterial.
DE68913622T2 (de) Aufzeichnungsmaterial.
DE69200130D1 (de) Magnetisches Material.
DE59007831D1 (de) Magnetische Aufzeichnungsträger.
DE69022465T2 (de) Statischer Lese-Magnetkopf.
DE69020591T2 (de) Magnetplatteneinheit.
DE69018197D1 (de) Elektrophotographisches Aufzeichnungsmaterial.
DE3854585D1 (de) Aufzeichnungsmaterial.
DE69101181D1 (de) Aufzeichnungsmaterial.
DE69005471D1 (de) Magnetischer Aufzeichnungsträger.
DE69016816T2 (de) Elektrophotographisches Aufzeichnungsmaterial.
DE69009912T2 (de) Magnetisches Aufzeichnungsmaterial.
DE69022634D1 (de) Aufzeichnungsmaterial.
DE69028677D1 (de) Aufzeichnungsmaterial
DE58905152D1 (de) Aufzeichnungsmaterial.
DE69014259D1 (de) Elektrostatisches Aufzeichnungsmaterial.
NL193510B (nl) Magnetisch registreermateriaal.
DE69013819T2 (de) Magnetisches Aufzeichnungsmedium.
DE69010699D1 (de) Magnetplattenkassette.
DE59006121D1 (de) Magnetischer Aufzeichnungsträger.
DE69111068T2 (de) Magnetisches material.
DE59007497D1 (de) Magnetische Aufzeichnungsträger.

Legal Events

Date Code Title Description
8363 Opposition against the patent
8365 Fully valid after opposition proceedings
8339 Ceased/non-payment of the annual fee