DK118926B - Fremgangsmåde til fremstilling af multimagnethoveder med nøjagtigt defineret spaltehøjde. - Google Patents

Fremgangsmåde til fremstilling af multimagnethoveder med nøjagtigt defineret spaltehøjde.

Info

Publication number
DK118926B
DK118926B DK572365AA DK572365A DK118926B DK 118926 B DK118926 B DK 118926B DK 572365A A DK572365A A DK 572365AA DK 572365 A DK572365 A DK 572365A DK 118926 B DK118926 B DK 118926B
Authority
DK
Denmark
Prior art keywords
magnetic heads
precisely defined
slot height
manufacturing multi
defined slot
Prior art date
Application number
DK572365AA
Other languages
Danish (da)
English (en)
Inventor
H Peloschek
Original Assignee
Philips Nv
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 Philips Nv filed Critical Philips Nv
Publication of DK118926B publication Critical patent/DK118926B/da

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
    • G11B5/127—Structure or manufacture of heads, e.g. inductive
    • G11B5/265—Structure or manufacture of a head with more than one gap for erasing, recording or reproducing on the same track
    • 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
    • G11B5/127—Structure or manufacture of heads, e.g. inductive
    • G11B5/187—Structure or manufacture of the surface of the head in physical contact with, or immediately adjacent to the recording medium; Pole pieces; Gap features
    • 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
    • G11B5/127—Structure or manufacture of heads, e.g. inductive
    • G11B5/29—Structure or manufacture of unitary devices formed of plural heads for more than one track
    • 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
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/49002—Electrical device making
    • Y10T29/4902—Electromagnet, transformer or inductor
    • Y10T29/49021—Magnetic recording reproducing transducer [e.g., tape head, core, etc.]
    • Y10T29/49032—Fabricating head structure or component thereof
    • Y10T29/49036—Fabricating head structure or component thereof including measuring or testing
    • Y10T29/49037—Using reference point/surface to facilitate measuring
    • 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
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/49002—Electrical device making
    • Y10T29/4902—Electromagnet, transformer or inductor
    • Y10T29/49021—Magnetic recording reproducing transducer [e.g., tape head, core, etc.]
    • Y10T29/49032—Fabricating head structure or component thereof
    • Y10T29/49048—Machining magnetic material [e.g., grinding, etching, polishing]

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Magnetic Heads (AREA)
DK572365AA 1964-11-10 1965-11-06 Fremgangsmåde til fremstilling af multimagnethoveder med nøjagtigt defineret spaltehøjde. DK118926B (da)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL6413057A NL6413057A (xx) 1964-11-10 1964-11-10

Publications (1)

Publication Number Publication Date
DK118926B true DK118926B (da) 1970-10-19

Family

ID=19791414

Family Applications (1)

Application Number Title Priority Date Filing Date
DK572365AA DK118926B (da) 1964-11-10 1965-11-06 Fremgangsmåde til fremstilling af multimagnethoveder med nøjagtigt defineret spaltehøjde.

Country Status (8)

Country Link
US (1) US3395451A (xx)
AT (1) AT267899B (xx)
BE (1) BE672114A (xx)
DK (1) DK118926B (xx)
ES (1) ES319334A1 (xx)
GB (1) GB1073597A (xx)
NL (1) NL6413057A (xx)
SE (1) SE330794B (xx)

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA553156A (en) * 1958-02-11 Kornei Otto Method of making magnetic transducer heads
US2769866A (en) * 1951-06-08 1956-11-06 Clevite Corp Magnetic transducer head

Also Published As

Publication number Publication date
BE672114A (xx)
AT267899B (de) 1969-01-27
SE330794B (xx) 1970-11-30
GB1073597A (en) 1967-06-28
US3395451A (en) 1968-08-06
NL6413057A (xx) 1966-05-11
ES319334A1 (es) 1966-01-16

Similar Documents

Publication Publication Date Title
DK114354B (da) Fremgangsmåde til fremstilling af polskoenheder til magnethoveder.
DK122997B (da) Fremgangsmåde til fremstilling af resoribletter.
DK121389B (da) Fremgangsmåde til fremstilling af et galvanisk tørelement.
DK136224B (da) Fremgangsmåde til fremstilling af en dør eller et tilsvarende pladeelement.
DK111443B (da) Maskine til formning af dybe optrukne dåselegemer.
DK138068B (da) Fremgangsmåde til fremstilling af pladeformede radiatorer.
DK112793B (da) Fremgangsmåde til sammenklæbning af tekstiler.
DK119334B (da) Fremgangsmåde til fremstilling af en elektrode.
DK118396B (da) Fremgangsmåde til fremstilling af urinstof.
DK119773B (da) Analogifremgangsmåde til fremstilling af aminsalte af 3-iod-4-hydroxy-5-nitro-benzonitril.
DK135287B (da) Analogifremgangsmåde til fremstilling af styrylthiazoliumsalte.
DK126223B (da) Fremgangsmåde til fremstilling af græstørv.
DK119708B (da) Fremgangsmåde til fremstilling af thiaminderivater.
DK118926B (da) Fremgangsmåde til fremstilling af multimagnethoveder med nøjagtigt defineret spaltehøjde.
DK128230B (da) Fremgangsmåde til stabilisering af en pyritinolholdig vandig injektionsopløsning.
DK120307B (da) Fremgangsmåde til stabilisering af vinylphosphater.
DK118527B (da) Fremgangsmåde til fremstilling af formstofafblændingsplader med forankringselementer.
DK122074B (da) Fremgangsmåde til fremstilling af urinstof.
DK114758B (da) Fremgangsmåde til stabilisering af pigmenter.
DK128503B (da) Fremgangsmåde til forøgelse af aktiviteten af en vaccine.
DK118770B (da) Fremgangsmåde til fremstilling af vincanol.
DK119654B (da) Fremgangsmåde til fremstilling af formaldehydopløsninger.
DK117947B (da) Fremgangsmåde til fremstilling af antibiotiket 11.837 R.P.
DK123021B (da) Analogifremgangsmåde til fremstilling af syreadditionssalte af 2-aminoadamantan.
DK130894B (da) Låseramme til automatiske skydevåben.