NL8201231A - Magneetkop. - Google Patents

Magneetkop. Download PDF

Info

Publication number: NL8201231A
Authority: NL; Netherlands
Prior art keywords: magnetic; pole; coil; main; auxiliary
Prior art date: 1981-03-30

Application number

NL8201231A

Other languages

English (en)

Dutch (nl)

Original Assignee

Sony Corp

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.)

1981-03-30

Filing date

1982-03-24

Publication date

1982-10-18

1982-03-24 Application filed by Sony Corp filed Critical Sony Corp

1982-10-18 Publication of NL8201231A publication Critical patent/NL8201231A/nl

Links

230000005291 magnetic effect Effects 0.000 title claims description 225
239000000696 magnetic material Substances 0.000 claims description 31
239000010409 thin film Substances 0.000 claims description 16
125000006850 spacer group Chemical group 0.000 claims 1
230000005415 magnetization Effects 0.000 description 16
230000005284 excitation Effects 0.000 description 12
230000007423 decrease Effects 0.000 description 7
229910000859 α-Fe Inorganic materials 0.000 description 7
239000000853 adhesive Substances 0.000 description 6
230000001070 adhesive effect Effects 0.000 description 6
239000000463 material Substances 0.000 description 6
230000035699 permeability Effects 0.000 description 6
238000010276 construction Methods 0.000 description 5
230000004907 flux Effects 0.000 description 4
229910000889 permalloy Inorganic materials 0.000 description 4
230000003014 reinforcing effect Effects 0.000 description 4
238000004804 winding Methods 0.000 description 4
229910045601 alloy Inorganic materials 0.000 description 3
239000000956 alloy Substances 0.000 description 3
239000002131 composite material Substances 0.000 description 3
239000011888 foil Substances 0.000 description 3
229910000702 sendust Inorganic materials 0.000 description 3
229910018605 Ni—Zn Inorganic materials 0.000 description 2
VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
230000003247 decreasing effect Effects 0.000 description 2
238000010586 diagram Methods 0.000 description 2
238000009826 distribution Methods 0.000 description 2
230000002349 favourable effect Effects 0.000 description 2
238000004519 manufacturing process Methods 0.000 description 2
238000000034 method Methods 0.000 description 2
RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
229910000599 Cr alloy Inorganic materials 0.000 description 1
229910000676 Si alloy Inorganic materials 0.000 description 1
229910004298 SiO 2 Inorganic materials 0.000 description 1
BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 description 1
230000002411 adverse Effects 0.000 description 1
XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
229910052782 aluminium Inorganic materials 0.000 description 1
239000000919 ceramic Substances 0.000 description 1
238000005352 clarification Methods 0.000 description 1
229910052681 coesite Inorganic materials 0.000 description 1
230000000052 comparative effect Effects 0.000 description 1
229910052802 copper Inorganic materials 0.000 description 1
239000010949 copper Substances 0.000 description 1
229910052906 cristobalite Inorganic materials 0.000 description 1
230000000694 effects Effects 0.000 description 1
239000003822 epoxy resin Substances 0.000 description 1
238000005530 etching Methods 0.000 description 1
238000002474 experimental method Methods 0.000 description 1
239000003302 ferromagnetic material Substances 0.000 description 1
239000011521 glass Substances 0.000 description 1
239000003365 glass fiber Substances 0.000 description 1
PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
229910052737 gold Inorganic materials 0.000 description 1
239000010931 gold Substances 0.000 description 1
239000011810 insulating material Substances 0.000 description 1
238000005304 joining Methods 0.000 description 1
238000012986 modification Methods 0.000 description 1
230000004048 modification Effects 0.000 description 1
229920000647 polyepoxide Polymers 0.000 description 1
235000019353 potassium silicate Nutrition 0.000 description 1
230000035945 sensitivity Effects 0.000 description 1
239000000377 silicon dioxide Substances 0.000 description 1
235000012239 silicon dioxide Nutrition 0.000 description 1
229910052709 silver Inorganic materials 0.000 description 1
239000004332 silver Substances 0.000 description 1
NTHWMYGWWRZVTN-UHFFFAOYSA-N sodium silicate Chemical compound [Na+].[Na+].[O-][Si]([O-])=O NTHWMYGWWRZVTN-UHFFFAOYSA-N 0.000 description 1
239000007779 soft material Substances 0.000 description 1
238000005476 soldering Methods 0.000 description 1
238000004544 sputter deposition Methods 0.000 description 1
229910052682 stishovite Inorganic materials 0.000 description 1
229910052905 tridymite Inorganic materials 0.000 description 1
238000007738 vacuum evaporation Methods 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
- G11B5/1278—Structure or manufacture of heads, e.g. inductive specially adapted for magnetisations perpendicular to the surface of the record carrier

Landscapes

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

NL8201231A 1981-03-30 1982-03-24 Magneetkop. NL8201231A (nl)

Applications Claiming Priority (2)

Application Number	Priority Date	Filing Date	Title
JP4674681A JPS57162114A (en)	1981-03-30	1981-03-30	Magnetic head
JP4674681		1981-03-30

Publications (1)

Publication Number	Publication Date
NL8201231A true NL8201231A (nl)	1982-10-18

Family

ID=12755893

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
NL8201231A NL8201231A (nl)	1981-03-30	1982-03-24	Magneetkop.

Country Status (6)

Country	Link
JP (1)	JPS57162114A (fr)
CA (1)	CA1179771A (fr)
DE (1)	DE3211581A1 (fr)
FR (1)	FR2502824B1 (fr)
GB (1)	GB2095888B (fr)
NL (1)	NL8201231A (fr)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
JPS59157819A (ja) *	1983-02-25	1984-09-07	Sony Corp	垂直磁気記録用ヘツド
WO1984003788A1 (fr) *	1983-03-22	1984-09-27	Sony Corp	Tete magnetique composite du type a pole magnetique unique pour enregistrement perpendiculaire
JPH07101483B2 (ja) *	1983-08-29	1995-11-01	ソニー株式会社	薄膜型磁気ヘッド
US4672494A (en) *	1983-09-01	1987-06-09	Matsushita Electric Industrial Co., Ltd.	Magnetic head for effecting perpendicular magnetic recording
JPS60197914A (ja) *	1984-03-20	1985-10-07	Olympus Optical Co Ltd	垂直磁化型磁気ヘツド
JPS6134710A (ja) *	1984-07-26	1986-02-19	Akai Electric Co Ltd	磁気ヘツド

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
JPS5810764B2 (ja) *	1977-09-30	1983-02-28	岩崎俊一	磁気記録再生装置
JPS5584015U (fr) *	1978-12-07	1980-06-10
JPS56165918A (en) *	1980-05-23	1981-12-19	Ricoh Co Ltd	Vertical magnetic recorder and reproducer

1981
- 1981-03-30 JP JP4674681A patent/JPS57162114A/ja active Granted
1982
- 1982-03-22 CA CA000399018A patent/CA1179771A/fr not_active Expired
- 1982-03-24 NL NL8201231A patent/NL8201231A/nl not_active Application Discontinuation
- 1982-03-29 DE DE19823211581 patent/DE3211581A1/de not_active Ceased
- 1982-03-29 GB GB8209188A patent/GB2095888B/en not_active Expired
- 1982-03-29 FR FR8205338A patent/FR2502824B1/fr not_active Expired

Also Published As

Publication number	Publication date
JPH0157405B2 (fr)	1989-12-05
JPS57162114A (en)	1982-10-05
DE3211581A1 (de)	1982-12-02
GB2095888A (en)	1982-10-06
FR2502824A1 (fr)	1982-10-01
GB2095888B (en)	1984-09-26
FR2502824B1 (fr)	1985-01-04
CA1179771A (fr)	1984-12-18

Legal Events

Date	Code	Title
1985-01-01	A85	Still pending on 85-01-01
1989-05-01	BA	A request for search or an international-type search has been filed
1989-06-01	BB	A search report has been drawn up
1989-09-01	BC	A request for examination has been filed
1990-11-01	BV	The patent application has lapsed

Publication	Publication Date	Title
EP0071489B1 (fr)	1986-11-20	Tête magnétique pour enregistrement ou reproduction perpendiculaire
EP0360978B1 (fr)	1994-12-14	Tête magnétique à film mince pour enregistrement et reproduction perpendiculaire
EP0091812B1 (fr)	1987-11-19	Tête pour la reproduction d'enregistrements magnétiques perpendiculaires
EP0222183B1 (fr)	1994-01-12	Tête magnétique à couche mince
EP0521564B1 (fr)	1997-09-03	Tête magnétique à films minces
US20020075595A1 (en)	2002-06-20	Thin-film magnetic head and method of manufacturing same
EP0159039B1 (fr)	1992-01-22	Système d'enregistrement ou de reproduction magnétique avec tête magnétique composite
NL8303023A (nl)	1984-03-16	Magneetkop voor loodrechte registratie.
NL8201231A (nl)	1982-10-18	Magneetkop.
EP0191635B1 (fr)	1991-05-29	Tête magnétique
EP0273496B1 (fr)	1991-04-10	Tête magnétique comportant un entrefer en matériau dur électrochimiquement inerte
US4700253A (en)	1987-10-13	Slanted pole head for magnetic recording
US6233126B1 (en)	2001-05-15	Thin film magnetic head having low magnetic permeability layer, and method of manufacturing the magnetic head
JPH0833977B2 (ja)	1996-03-29	垂直磁化用磁気ヘッド及びその製造方法
EP0590791A1 (fr)	1994-04-06	Tête magnétique d'enregistrement magnéto-optique et appareil d'enregistrement magnéto-optique
EP0076969B1 (fr)	1986-01-08	Tête magnétique pour l'enregistrement perpendiculaire
EP0101352A1 (fr)	1984-02-22	Tête d'écriture ou lecture avec bobine(s) plane(s)
EP0170004A1 (fr)	1986-02-05	Tête magnétique
EP0600549A2 (fr)	1994-06-08	Tête magnétique à films minces et procédé de fabrication
US5936815A (en)	1999-08-10	Magnetic head
JPS63193305A (ja)	1988-08-10	磁気ヘッド
US6205007B1 (en)	2001-03-20	Thin-film magnetic head and method of manufacturing the magnetic head
JPH0777009B2 (ja)	1995-08-16	薄膜磁気ヘツド
JP2000076614A (ja)	2000-03-14	磁気ヘッド
JPH05290321A (ja)	1993-11-05	磁気ヘッド