NL243049A - - Google Patents

Info

Publication number: NL243049A
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.)

1959-09-05

Publication of NL243049A publication Critical patent/NL243049A/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
- G11B5/127—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
- G11B5/1272—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
- G11B5/133—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
- 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
- Y10T29/49048—Machining magnetic material [e.g., grinding, etching, polishing]
- 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

Landscapes

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

NL243049D 1959-09-05 NL243049A (OSRAM)

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
NL243051		1959-09-05

Publications (1)

Publication Number	Publication Date
NL243049A true NL243049A (OSRAM)

Family

ID=19751904

Family Applications (3)

Application Number	Title	Priority Date	Filing Date
NL243051D NL243051A (OSRAM)	1959-09-05
NL243049D NL243049A (OSRAM)	1959-09-05
NL112518D NL112518C (OSRAM)	1959-09-05

Family Applications Before (1)

Application Number	Title	Priority Date	Filing Date
NL243051D NL243051A (OSRAM)	1959-09-05

Family Applications After (1)

Application Number	Title	Priority Date	Filing Date
NL112518D NL112518C (OSRAM)	1959-09-05

Country Status (5)

Country	Link
US (1)	US3237280A (OSRAM)
DE (2)	DE1140357B (OSRAM)
ES (1)	ES260772A1 (OSRAM)
GB (1)	GB945997A (OSRAM)
NL (3)	NL112518C (OSRAM)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US3700827A (en) *	1970-01-31	1972-10-24	Nippon Electric Co	Magnetic head including thin magnetic film separated by a gap spacer
US4264939A (en) *	1978-05-30	1981-04-28	Victor Company Of Japan, Limited	Magnetic erasing head
US4870520A (en) *	1986-05-29	1989-09-26	Magnetic Peripherals Inc.	Read/write head with side winding slot

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
FR884881A (fr) *	1941-08-15	1943-08-30	Weber Walter	Procédé et dispositif d'enregistrements sonores magnétiques en vue de la reproduction stéréophonique
CH252162A (de) *	1946-01-11	1947-12-15	Beka St Aubin Ag	Sprechkopf an Magnettongeräten.
US2810020A (en) *	1950-08-12	1957-10-15	Klangfilm Gmbh	Magnetic head for sound-recording apparatus and the like
GB721755A (en) *	1951-06-08	1955-01-12	Clevite Corp	Magnetic transducer head and method of making same
US2915812A (en) *	1953-04-21	1959-12-08	Rca Corp	Method of constructing magnetic heads
GB772311A (en) *	1954-01-29	1957-04-10	Ibm	Magnetic transducer
DE1784946A1 (OSRAM) *	1955-08-25
US2967750A (en) *	1956-04-04	1961-01-10	Sonotone Corp	Magnetic record transducing heads
FR1213217A (fr) *	1959-01-06	1960-03-29	Bull Sa Machines	Tête magnétique multiple

0
- NL NL243051D patent/NL243051A/xx unknown
- NL NL243049D patent/NL243049A/xx unknown
- NL NL112518D patent/NL112518C/xx active
1960
- 1960-09-01 DE DEN18858A patent/DE1140357B/de active Pending
- 1960-09-01 DE DEN18861A patent/DE1176712B/de active Pending
- 1960-09-02 ES ES0260772A patent/ES260772A1/es not_active Expired
- 1960-09-02 GB GB30374/60A patent/GB945997A/en not_active Expired
- 1960-09-06 US US54278A patent/US3237280A/en not_active Expired - Lifetime

Also Published As

Publication number	Publication date
DE1176712B (de)	1964-08-27
NL243051A (OSRAM)
DE1140357B (de)	1962-11-29
US3237280A (en)	1966-03-01
GB945997A (en)	1964-01-08
ES260772A1 (es)	1960-11-16
NL112518C (OSRAM)

Publication	Publication Date	Title
AT212261B (OSRAM)	1960-12-12
JPS3513270B1 (OSRAM)	1960-09-13
IT613494A (OSRAM)
FR894M (OSRAM)	1961-10-30
FR1194331A (OSRAM)	1959-11-09
AT219961B (OSRAM)	1962-02-26
AT216639B (OSRAM)	1961-08-10
AT219811B (OSRAM)	1962-02-26
AT213496B (OSRAM)	1961-02-27
NL112518C (OSRAM)
BE579739A (OSRAM)
BE575793A (OSRAM)
BE594067A (OSRAM)
BE586258A (OSRAM)
BE585435A (OSRAM)
BE584355A (OSRAM)	1959-11-30
BE585450A (OSRAM)
BE576754A (OSRAM)
BE586027A (OSRAM)
BE575117A (OSRAM)	1959-02-14
BE580250A (OSRAM)
BE574478A (OSRAM)
NL255279A (OSRAM)
BE586320A (OSRAM)
NL128912C (OSRAM)