NO117050B - - Google Patents

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Info

Publication number: NO117050B
Authority: NO; Norway
Prior art keywords: plate; magnetic; sintered; oxidic; ferromagnetic material
Prior art date: 1964-02-29

Application number

NO156939A

Other languages

English (en)

Norwegian (no)

Inventor

J Geurst

G Walther

R Styner

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.)

1964-02-29

Filing date

1965-02-25

Publication date

1969-06-23

1965-02-25 Application filed by Philips Nv filed Critical Philips Nv

1969-06-23 Publication of NO117050B publication Critical patent/NO117050B/no

Links

230000005291 magnetic effect Effects 0.000 claims description 31
239000003302 ferromagnetic material Substances 0.000 claims description 16
239000000696 magnetic material Substances 0.000 claims description 8
239000011248 coating agent Substances 0.000 claims description 2
238000000576 coating method Methods 0.000 claims description 2
230000008878 coupling Effects 0.000 claims description 2
238000010168 coupling process Methods 0.000 claims description 2
238000005859 coupling reaction Methods 0.000 claims description 2
230000004907 flux Effects 0.000 description 7
239000004020 conductor Substances 0.000 description 2
239000011521 glass Substances 0.000 description 2
230000005415 magnetization Effects 0.000 description 1
238000004519 manufacturing process Methods 0.000 description 1
239000002184 metal Substances 0.000 description 1
230000000630 rising effect Effects 0.000 description 1

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
- G11B5/127—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
- G11B5/29—Structure or manufacture of unitary devices formed of plural heads for more than one track

Landscapes

Engineering & Computer Science (AREA)
Manufacturing & Machinery (AREA)
Magnetic Heads (AREA)
Powder Metallurgy (AREA)
Adjustment Of The Magnetic Head Position Track Following On Tapes (AREA)

NO156939A 1964-02-29 1965-02-25 NO117050B (mo)

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
NL6402051A NL6402051A (mo)	1964-02-29	1964-02-29

Publications (1)

Publication Number	Publication Date
NO117050B true NO117050B (mo)	1969-06-23

Family

ID=19789443

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
NO156939A NO117050B (mo)	1964-02-29	1965-02-25

Country Status (12)

Country	Link
US (1)	US3357005A (mo)
AT (1)	AT249399B (mo)
BE (1)	BE660455A (mo)
CH (1)	CH427329A (mo)
DE (1)	DE1472024A1 (mo)
DK (1)	DK119854B (mo)
ES (1)	ES309894A1 (mo)
FR (1)	FR1425812A (mo)
GB (1)	GB1035284A (mo)
NL (1)	NL6402051A (mo)
NO (1)	NO117050B (mo)
SE (1)	SE305671B (mo)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US3432838A (en) *	1965-08-18	1969-03-11	Siemens Ag	Magnetically decoupled magnetic read-write transducer assembly
NL154607B (nl) *	1966-03-09	1977-09-15	Philips Nv	Magneetkopsysteem voorzien van twee magnetische controlecircuits voor een juiste positionering op een spoor.
US3478340A (en) *	1966-03-11	1969-11-11	Ibm	Unitized magnetic assembly
JPS517047B1 (mo) *	1970-03-10	1976-03-04
US4124874A (en) *	1976-09-02	1978-11-07	Bell & Howell Company	Magnetic information transducer assembly

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US2922231A (en) *	1956-04-26	1960-01-26	Ibm	Magnetic transducer
US3064333A (en) *	1959-06-29	1962-11-20	Ibm	Method of making a magnetic transducer
NL121891C (mo) *	1960-05-13
US3249928A (en) *	1961-09-22	1966-05-03	Burroughs Corp	Magnetic transducer

1964
- 1964-02-29 NL NL6402051A patent/NL6402051A/xx unknown
1965
- 1965-02-18 US US433685A patent/US3357005A/en not_active Expired - Lifetime
- 1965-02-25 DK DK98865AA patent/DK119854B/da unknown
- 1965-02-25 GB GB8152/65A patent/GB1035284A/en not_active Expired
- 1965-02-25 CH CH255665A patent/CH427329A/de unknown
- 1965-02-25 NO NO156939A patent/NO117050B/no unknown
- 1965-02-26 DE DE19651472024 patent/DE1472024A1/de active Pending
- 1965-02-26 SE SE2569/65A patent/SE305671B/xx unknown
- 1965-02-26 AT AT170265A patent/AT249399B/de active
- 1965-02-27 ES ES0309894A patent/ES309894A1/es not_active Expired
- 1965-03-01 BE BE660455A patent/BE660455A/xx unknown
- 1965-03-01 FR FR7384A patent/FR1425812A/fr not_active Expired

Also Published As

Publication number	Publication date
NL6402051A (mo)	1965-08-30
AT249399B (de)	1966-09-26
DK119854B (da)	1971-03-01
CH427329A (de)	1966-12-31
FR1425812A (fr)	1966-01-24
BE660455A (mo)	1965-09-01
ES309894A1 (es)	1965-06-01
GB1035284A (en)	1966-07-06
DE1472024A1 (de)	1968-12-05
US3357005A (en)	1967-12-05
SE305671B (mo)	1968-11-04

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