NL121891C - - Google Patents

Info

Publication number: NL121891C
Authority: NL; Netherlands

Application number

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.)

1960-05-13

Publication of NL121891C publication Critical patent/NL121891C/xx

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
- G11B5/48—Disposition or mounting of heads or head supports relative to record carriers ; arrangements of heads, e.g. for scanning the record carrier to increase the relative speed
- G11B5/488—Disposition of heads
- 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
- G11B5/004—Recording on, or reproducing or erasing from, magnetic drums
- 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
- 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
- G11B5/48—Disposition or mounting of heads or head supports relative to record carriers ; arrangements of heads, e.g. for scanning the record carrier to increase the relative speed

Landscapes

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

NL121891D 1960-05-13 NL121891C (it)

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
US28881A US3132214A (en)	1960-05-13	1960-05-13	Magnetic recorder head assembly

Publications (1)

Publication Number	Publication Date
NL121891C true NL121891C (it)

Family

ID=21846033

Family Applications (2)

Application Number	Title	Priority Date	Filing Date
NL121891D NL121891C (it)	1960-05-13
NL264552D NL264552A (it)	1960-05-13

Family Applications After (1)

Application Number	Title	Priority Date	Filing Date
NL264552D NL264552A (it)	1960-05-13

Country Status (4)

Country	Link
US (1)	US3132214A (it)
CH (1)	CH412001A (it)
GB (1)	GB943558A (it)
NL (2)	NL264552A (it)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US3325795A (en) *	1963-05-20	1967-06-13	Cons Electrodynamics Corp	High resolution digital magnetic head with flux focusing shield
NL6402051A (it) *	1964-02-29	1965-08-30
NL156528B (nl) *	1966-09-15	1978-04-17	Philips Nv	Magnetische schrijf-lees-wiskop.
GB1291615A (en) *	1970-05-26	1972-10-04	Int Computers Ltd	Improvements in or relating to magnetic recording apparatus
US3668332A (en) *	1970-08-26	1972-06-06	Xerox Corp	Magnetic recording heat which accurately defines the width of the recording track
US3859664A (en) *	1973-07-09	1975-01-07	Honeywell Inf Systems	Batch fabricated thin-film transducers having a common pole with tunnel erase poles and a plurality of read/write poles

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US2538892A (en) *	1946-12-04	1951-01-23	Brush Dev Co	System to prevent accidental rerecording on a magnetic record
US2668878A (en) *	1950-07-29	1954-02-09	Webster Electric Co Inc	Transducer
US2736776A (en) *	1951-06-02	1956-02-28	Armour Res Found	Magnetic recorder head assembly
US2987582A (en) *	1955-08-12	1961-06-06	Sperry Rand Corp	Multichannel magnetic erasing heads
US2927974A (en) *	1956-08-29	1960-03-08	Sperry Rand Corp	Magnetic transducer

0
- NL NL121891D patent/NL121891C/xx active
- NL NL264552D patent/NL264552A/xx unknown
1960
- 1960-05-13 US US28881A patent/US3132214A/en not_active Expired - Lifetime
1961
- 1961-05-10 GB GB17093/61A patent/GB943558A/en not_active Expired
- 1961-05-13 CH CH562861A patent/CH412001A/it unknown

Also Published As

Publication number	Publication date
NL264552A (it)
US3132214A (en)	1964-05-05
GB943558A (en)	1963-12-04
CH412001A (it)	1966-04-30

Publication	Publication Date	Title
DE1249832B (it)
DE1221564C2 (it)	1967-01-26
FR884M (it)	1961-10-23
JPS385291B1 (it)	1963-05-07
FR799M (it)	1961-09-11
FR1590054A (it)	1970-04-13
BE605039A (it)
BE606275A (it)
BE608391A (it)	1962-03-21
NL264552A (it)
CH288162A4 (it)	1965-08-31
BE624993A (it)
BE617890A (it)
BE608300A (it)
BE610814A (it)
BE610449A (it)
BE609959A (it)
BE609362A (it)
BE608130A (it)
BE606303A (it)
BE605982A (it)
BE605842A (it)
BE611989A (it)
BE604918A (it)
BE627752A (it)