IT956074B - Mezzo magnetico di registrazione - Google Patents

Mezzo magnetico di registrazione

Info

Publication number
IT956074B
IT956074B IT25157/72A IT2515772A IT956074B IT 956074 B IT956074 B IT 956074B IT 25157/72 A IT25157/72 A IT 25157/72A IT 2515772 A IT2515772 A IT 2515772A IT 956074 B IT956074 B IT 956074B
Authority
IT
Italy
Prior art keywords
registration media
magnetic registration
magnetic
media
registration
Prior art date
Application number
IT25157/72A
Other languages
English (en)
Italian (it)
Original Assignee
Ncr Co
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 Ncr Co filed Critical Ncr Co
Application granted granted Critical
Publication of IT956074B publication Critical patent/IT956074B/it

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
    • G11B5/64—Record carriers characterised by the selection of the material comprising only the magnetic material without bonding agent
    • G11B5/65—Record carriers characterised by the selection of the material comprising only the magnetic material without bonding agent characterised by its composition
    • G11B5/657—Record carriers characterised by the selection of the material comprising only the magnetic material without bonding agent characterised by its composition containing inorganic, non-oxide compound of Si, N, P, B, H or C, e.g. in metal alloy or compound
    • 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
    • G11B5/73—Base 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
    • G11B5/7368—Non-polymeric layer under the lowermost magnetic recording layer
    • G11B5/7369—Two or more non-magnetic underlayers, e.g. seed layers or barrier layers
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F10/00—Thin magnetic films, e.g. of one-domain structure
    • H01F10/06—Thin magnetic films, e.g. of one-domain structure characterised by the coupling or physical contact with connecting or interacting conductors
    • 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
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S428/00—Stock material or miscellaneous articles
    • Y10S428/922—Static electricity metal bleed-off metallic stock
    • Y10S428/923—Physical dimension
    • Y10S428/924—Composite
    • Y10S428/926—Thickness of individual layer specified
    • 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
    • Y10S428/922—Static electricity metal bleed-off metallic stock
    • Y10S428/9265—Special properties
    • Y10S428/928—Magnetic property
    • 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
    • Y10S428/922—Static electricity metal bleed-off metallic stock
    • Y10S428/9335—Product by special process
    • Y10S428/936—Chemical deposition, e.g. electroless plating
    • 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
    • Y10T428/12—All metal or with adjacent metals
    • Y10T428/12229—Intermediate article [e.g., blank, etc.]
    • Y10T428/12236—Panel having nonrectangular perimeter
    • Y10T428/12243—Disk
    • 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
    • Y10T428/12—All metal or with adjacent metals
    • Y10T428/12493—Composite; i.e., plural, adjacent, spatially distinct metal components [e.g., layers, joint, etc.]
    • Y10T428/12736—Al-base component
    • 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
    • Y10T428/12—All metal or with adjacent metals
    • Y10T428/12493—Composite; i.e., plural, adjacent, spatially distinct metal components [e.g., layers, joint, etc.]
    • Y10T428/12771—Transition metal-base component
    • Y10T428/12785—Group IIB metal-base component
    • Y10T428/12792—Zn-base component
    • 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
    • Y10T428/12—All metal or with adjacent metals
    • Y10T428/12493—Composite; i.e., plural, adjacent, spatially distinct metal components [e.g., layers, joint, etc.]
    • Y10T428/12771—Transition metal-base component
    • Y10T428/12861—Group VIII or IB metal-base component
    • 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
    • Y10T428/12—All metal or with adjacent metals
    • Y10T428/12493—Composite; i.e., plural, adjacent, spatially distinct metal components [e.g., layers, joint, etc.]
    • Y10T428/12771—Transition metal-base component
    • Y10T428/12861—Group VIII or IB metal-base component
    • Y10T428/12889—Au-base component
    • 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
    • Y10T428/12—All metal or with adjacent metals
    • Y10T428/12493—Composite; i.e., plural, adjacent, spatially distinct metal components [e.g., layers, joint, etc.]
    • Y10T428/12986—Adjacent functionally defined components

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Metallurgy (AREA)
  • Magnetic Record Carriers (AREA)
  • Manufacturing Of Magnetic Record Carriers (AREA)
IT25157/72A 1971-06-03 1972-05-31 Mezzo magnetico di registrazione IT956074B (it)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US14971771A 1971-06-03 1971-06-03

Publications (1)

Publication Number Publication Date
IT956074B true IT956074B (it) 1973-10-10

Family

ID=22531502

Family Applications (1)

Application Number Title Priority Date Filing Date
IT25157/72A IT956074B (it) 1971-06-03 1972-05-31 Mezzo magnetico di registrazione

Country Status (13)

Country Link
US (1) US3738818A (en:Method)
JP (1) JPS515926B1 (en:Method)
AU (1) AU4234772A (en:Method)
BE (1) BE784312A (en:Method)
CA (1) CA965183A (en:Method)
CH (1) CH539909A (en:Method)
DE (1) DE2226229A1 (en:Method)
ES (1) ES403351A1 (en:Method)
FR (1) FR2140103B3 (en:Method)
GB (1) GB1344770A (en:Method)
IT (1) IT956074B (en:Method)
NL (1) NL7207444A (en:Method)
ZA (1) ZA723274B (en:Method)

Families Citing this family (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3970433A (en) * 1975-06-23 1976-07-20 Control Data Corporation Recording surface substrate
DE2556755C2 (de) * 1975-12-17 1982-04-15 Ibm Deutschland Gmbh, 7000 Stuttgart Mehrschichtiger magnetischer Aufzeichnungsträger
US4150172A (en) * 1977-05-26 1979-04-17 Kolk Jr Anthony J Method for producing a square loop magnetic media for very high density recording
JPS54129316A (en) * 1978-03-31 1979-10-06 Tohoku Metal Ind Ltd Split type zero phase current transformer
US4224381A (en) * 1978-10-19 1980-09-23 Poly Disc Systems, Inc. Abrasion resistant magnetic record members
JPS55157130A (en) * 1979-05-21 1980-12-06 Nippon Telegr & Teleph Corp <Ntt> Recording medium
US4277809A (en) * 1979-09-26 1981-07-07 Memorex Corporation Apparatus for recording magnetic impulses perpendicular to the surface of a recording medium
US4268584A (en) * 1979-12-17 1981-05-19 International Business Machines Corporation Nickel-X/gold/nickel-X conductors for solid state devices where X is phosphorus, boron, or carbon
US4346128A (en) * 1980-03-31 1982-08-24 The Boeing Company Tank process for plating aluminum substrates including porous aluminum castings
JPS58187260A (ja) * 1982-04-26 1983-11-01 Mitsubishi Electric Corp アルミニウム金属への半田被着法
US4711115A (en) * 1985-12-30 1987-12-08 Aluminum Company Of America Method for forming memory discs by forging
ES2027496A6 (es) * 1989-10-12 1992-06-01 Enthone Metodo para precipitar una capa metalica no electrica lisa sobre un substrato de aluminio.
US5182006A (en) * 1991-02-04 1993-01-26 Enthone-Omi Inc. Zincate solutions for treatment of aluminum and aluminum alloys
US5391395A (en) * 1992-12-30 1995-02-21 Witco Corporation Method of preparing substrates for memory disk applications
US10895612B2 (en) * 2018-10-15 2021-01-19 Tektronix, Inc. Test and measurement instrument with a hysteresis loop mask

Also Published As

Publication number Publication date
CA965183A (en) 1975-03-25
FR2140103A1 (en:Method) 1973-01-12
BE784312A (fr) 1972-10-02
US3738818A (en) 1973-06-12
ES403351A1 (es) 1975-04-16
GB1344770A (en) 1974-01-23
CH539909A (de) 1973-07-31
DE2226229A1 (de) 1972-12-14
JPS515926B1 (en:Method) 1976-02-24
FR2140103B3 (en:Method) 1975-08-08
AU4234772A (en) 1973-11-22
ZA723274B (en) 1973-02-28
NL7207444A (en:Method) 1972-12-05

Similar Documents

Publication Publication Date Title
SE389576B (sv) Magnetiskt registreringsmedium
SE386725B (sv) Permanentmagnetisk sneckvexel
SE7505779L (sv) Informationsregistrering.
SE382513B (sv) Kapslat magnetskivarrangemang.
DE2137691B2 (de) Magnetisches tragsystem
IT960879B (it) Cassetta per nastri magnetici
CH537548A (de) Magnetventil
NL167533C (nl) Magnetisch registratiesysteem.
IT965906B (it) Cassetta di nastro magnetico
BE791686A (fr) Agencement magnetique
CH539909A (de) Magnetischer Aufzeichnungsträger
IT1017326B (it) Mezzo di registrazione magnetica
IT1007942B (it) Mezzo di registrazione magnetico perfezionato
IT971133B (it) Sistema di registrazione perfe zionato
AT323757B (de) Magnetisches filter
NL179689C (nl) Magnetisch registratiemedium.
BE783092A (fr) Agencement magnetique
IT956127B (it) Memoria magnetica
IT964413B (it) Mezzo per registrazione magnetica
NL180052C (nl) Magnetisch registratiemedium.
IT954497B (it) Registrazione magnetica
CH533407A (de) Magnetischer Tonabnehmer
IT953770B (it) Mezzo magnetico di registrazione
BE807421A (fr) Supports d&#39;enregistrements magnetiques
BE805550A (nl) Magnetisch registreermedium