DK112776B - Fremgangsmåde til fremstilling af polskoenheder til et magnethoved samt fremgangsmåde til fremstilling af magnethoveder ved anvendelse af polskoenheder, der er tilvejebragt ved førstnævnte fremgangsmåde. - Google Patents

Fremgangsmåde til fremstilling af polskoenheder til et magnethoved samt fremgangsmåde til fremstilling af magnethoveder ved anvendelse af polskoenheder, der er tilvejebragt ved førstnævnte fremgangsmåde.

Info

Publication number: DK112776B
Authority: DK; Denmark
Prior art keywords: manufacturing; pole shoe; shoe assemblies; magnetic head; former
Prior art date: 1959-09-05

Application number

DK348460AA

Other languages

English (en)

Inventor

S Duinker

J Bos

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.)

1959-09-05

Filing date

1960-09-02

Publication date

1969-01-13

1960-09-02 Application filed by Philips Nv filed Critical Philips Nv

1969-01-13 Publication of DK112776B publication Critical patent/DK112776B/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
- 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
- G11B5/10—Structure or manufacture of housings or shields for heads
- G11B5/105—Mounting of head within housing or assembling of head and housing
- 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
- G11B5/133—Structure or manufacture of heads, e.g. inductive with cores composed of particles, e.g. with dust cores, with ferrite cores with cores composed of isolated magnetic particles
- G11B5/1335—Assembling or shaping of elements
- 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
- 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
- Y10T29/49071—Electromagnet, transformer or inductor by winding or coiling

Landscapes

Engineering & Computer Science (AREA)
Manufacturing & Machinery (AREA)
Magnetic Heads (AREA)

DK348460AA 1959-09-05 1960-09-02 Fremgangsmåde til fremstilling af polskoenheder til et magnethoved samt fremgangsmåde til fremstilling af magnethoveder ved anvendelse af polskoenheder, der er tilvejebragt ved førstnævnte fremgangsmåde. DK112776B (da)

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
NL243050		1959-09-05

Publications (1)

Publication Number	Publication Date
DK112776B true DK112776B (da)	1969-01-13

Family

ID=19751903

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
DK348460AA DK112776B (da)	1959-09-05	1960-09-02	Fremgangsmåde til fremstilling af polskoenheder til et magnethoved samt fremgangsmåde til fremstilling af magnethoveder ved anvendelse af polskoenheder, der er tilvejebragt ved førstnævnte fremgangsmåde.

Country Status (6)

Country	Link
US (1)	US3187410A (da)
CH (1)	CH398994A (da)
DK (1)	DK112776B (da)
GB (1)	GB900893A (da)
NL (2)	NL243050A (da)
SE (2)	SE319913B (da)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
NL123062C (da) *	1962-05-04
US3369292A (en) *	1962-11-23	1968-02-20	North American Phillips Compan	Method of forming glass bonded heads
NL149020B (nl) *	1965-01-14	1976-03-15	Philips Nv	Werkwijze voor het vervaardigen van een poolschoeneenheid voor een magneetkop, alsmede poolschoeneenheid, vervaardigd volgens deze werkwijze.
US3544982A (en) *	1968-05-01	1970-12-01	Rca Corp	Multi-head magnetic transducer
US3601871A (en) *	1968-09-30	1971-08-31	Texas Instruments Inc	Method for fabricating magnetic read-write head array and product
JPS5031818B1 (da) *	1969-06-23	1975-10-15
JPS513211B1 (da) *	1970-04-22	1976-02-02
GB1385945A (en) *	1972-06-06	1975-03-05	Int Computers Ltd	Methods of manufacturing magnetic transducing heads and parts thereof
US3807042A (en) *	1972-08-16	1974-04-30	Honeywell Inc	Method of making a magnetic head structure
US4115827A (en) *	1975-09-22	1978-09-19	Ampex Corporation	Magnetic transducer for narrow track recording and playback

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US2735901A (en) *		1956-02-21		Electromagnetic transducer
NL157302B (nl) *	1949-11-16		Research Corp	Werkwijze voor de bereiding van condensatieprodukten van benzofuroxan en derivaten daarvan.
US2767254A (en) *	1951-09-28	1956-10-16	Rca Corp	Magnetic recording
US2853560A (en) *	1951-12-15	1958-09-23	Atkinson	Variable area magnetic recording apparatus
US2711945A (en) *	1953-03-04	1955-06-28	Clevite Corp	Magnetic transducer head for high frequency signals
US2915812A (en) *	1953-04-21	1959-12-08	Rca Corp	Method of constructing magnetic heads
US3049790A (en) *	1954-06-03	1962-08-21	Armour Res Found	Magnetic head and method of making same
US2866011A (en) *	1954-07-13	1958-12-23	Clevite Corp	Magnetic transducer head
US3024318A (en) *	1955-10-04	1962-03-06	Philips Corp	Glass gap spacer for magnetic heads
US2908770A (en) *	1956-04-30	1959-10-13	Rca Corp	Magnetic recording-reproducing
US3000078A (en) *	1956-06-04	1961-09-19	Bendix Corp	Method of making magnetic transducer heads

0
- NL NL112519D patent/NL112519C/xx active
- NL NL243050D patent/NL243050A/xx unknown
1960
- 1960-09-02 SE SE8390/60A patent/SE319913B/xx unknown
- 1960-09-02 GB GB30373/60A patent/GB900893A/en not_active Expired
- 1960-09-02 CH CH994160A patent/CH398994A/de unknown
- 1960-09-02 SE SE12599/69A patent/SE330281B/xx unknown
- 1960-09-02 DK DK348460AA patent/DK112776B/da unknown
- 1960-09-06 US US54157A patent/US3187410A/en not_active Expired - Lifetime

Also Published As

Publication number	Publication date
NL112519C (da)
SE319913B (da)	1970-01-26
CH398994A (de)	1966-03-15
GB900893A (en)	1962-07-11
SE330281B (da)	1970-11-09
NL243050A (da)
US3187410A (en)	1965-06-08

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