DK108980C - Fremgangsmåde til fremstilling af dele af ringformede magnethoveder. - Google Patents

Fremgangsmåde til fremstilling af dele af ringformede magnethoveder.

Info

Publication number
DK108980C
DK108980C DK104464AA DK104464A DK108980C DK 108980 C DK108980 C DK 108980C DK 104464A A DK104464A A DK 104464AA DK 104464 A DK104464 A DK 104464A DK 108980 C DK108980 C DK 108980C
Authority
DK
Denmark
Prior art keywords
magnetic heads
annular magnetic
manufacturing parts
manufacturing
parts
Prior art date
Application number
DK104464AA
Other languages
English (en)
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
Application granted granted Critical
Publication of DK108980C publication Critical patent/DK108980C/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
    • G11B5/187—Structure or manufacture of the surface of the head in physical contact with, or immediately adjacent to the recording medium; Pole pieces; Gap features
    • G11B5/23—Gap features
    • G11B5/232—Manufacture of gap
    • 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
    • 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
    • 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
    • Y10T29/49055—Fabricating head structure or component thereof with bond/laminating preformed parts, at least two magnetic
    • Y10T29/49057—Using glass bonding material

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Magnetic Heads (AREA)
DK104464AA 1963-03-05 1964-03-02 Fremgangsmåde til fremstilling af dele af ringformede magnethoveder. DK108980C (da)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL63289815A NL145078B (nl) 1963-03-05 1963-03-05 Werkwijze voor het vervaardigen van voorstukken voor magnegrafoonkoppen.

Publications (1)

Publication Number Publication Date
DK108980C true DK108980C (da) 1968-03-04

Family

ID=19754478

Family Applications (1)

Application Number Title Priority Date Filing Date
DK104464AA DK108980C (da) 1963-03-05 1964-03-02 Fremgangsmåde til fremstilling af dele af ringformede magnethoveder.

Country Status (8)

Country Link
US (1) US3333332A (da)
AT (1) AT242391B (da)
CH (1) CH417993A (da)
DK (1) DK108980C (da)
ES (1) ES297165A1 (da)
GB (1) GB1009320A (da)
NL (1) NL145078B (da)
SE (1) SE307249B (da)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL144749B (nl) * 1964-12-31 1975-01-15 Philips Nv Werkwijze voor het vervaardigen van een magneetkop en magneetkop vervaardigd onder toepassing van deze werkwijze.
US3943624A (en) * 1975-01-24 1976-03-16 U. S. Philips Corporation Method of manufacturing a magnetic head
US4106173A (en) * 1975-06-13 1978-08-15 Olympus Optical Co., Ltd. Method of manufacturing magnetic heads
US4182643A (en) * 1977-07-05 1980-01-08 Control Data Corporation Method of forming gaps in magnetic heads
US4325093A (en) * 1979-06-04 1982-04-13 Texas Instruments Incorporated Magnetic head transducer having enhanced signal output and manufacturing method therefor
JP3858993B2 (ja) * 2002-10-15 2006-12-20 船井電機株式会社 磁気消去ヘッド用フロントコアの製造方法及びその方法で製造された磁気消去ヘッド用フロントコア
US20060060139A1 (en) * 2004-04-12 2006-03-23 Mks Instruments, Inc. Precursor gas delivery with carrier gas mixing

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3117367A (en) * 1958-07-03 1964-01-14 Philips Corp Method of manufactuirng a magnetic head having a glass spacer
US2980988A (en) * 1959-01-05 1961-04-25 Minnesota Mining & Mfg Method of fabricating tubes
NL278197A (da) * 1962-05-08

Also Published As

Publication number Publication date
GB1009320A (en) 1965-11-10
CH417993A (de) 1966-07-31
SE307249B (da) 1968-12-23
NL145078B (nl) 1975-02-17
AT242391B (de) 1965-09-10
ES297165A1 (es) 1964-08-16
US3333332A (en) 1967-08-01

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