ATA412784A - MAGNETIC CONVERTER HEAD - Google Patents

MAGNETIC CONVERTER HEAD

Info

Publication number: ATA412784A
Authority: AT; Austria
Prior art keywords: magnetic converter; converter head; head; magnetic; converter
Prior art date: 1983-12-30

Application number

AT4127/84A

Other languages

German (de)

Other versions

AT393566B (en

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.)

1983-12-30

Filing date

1984-12-28

Publication date

1991-04-15

1983-12-30 Priority claimed from JP58250988A external-priority patent/JPS60229210A/en

1984-04-18 Priority claimed from JP59078242A external-priority patent/JPS60223012A/en

1984-05-18 Priority claimed from JP9975184A external-priority patent/JPS60243810A/en

1984-12-28 Application filed by Sony Corp filed Critical Sony Corp

1991-04-15 Publication of ATA412784A publication Critical patent/ATA412784A/en

1991-11-11 Application granted granted Critical

1991-11-11 Publication of AT393566B publication Critical patent/AT393566B/en

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
- G11B5/31—Structure or manufacture of heads, e.g. inductive using thin films
- G11B5/3163—Fabrication methods or processes specially adapted for a particular head structure, e.g. using base layers for electroplating, using functional layers for masking, using energy or particle beams for shaping the structure or modifying the properties of the basic layers
- 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
- G11B5/187—Structure or manufacture of the surface of the head in physical contact with, or immediately adjacent to the recording medium; Pole pieces; Gap features
- G11B5/1871—Shaping or contouring of the transducing or guiding surface
- 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
- G11B5/31—Structure or manufacture of heads, e.g. inductive using thin films
- G11B5/3109—Details
- 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
- G11B5/31—Structure or manufacture of heads, e.g. inductive using thin films
- G11B5/3109—Details
- G11B5/3116—Shaping of layers, poles or gaps for improving the form of the electrical signal transduced, e.g. for shielding, contour effect, equalizing, side flux fringing, cross talk reduction between heads or between heads and information tracks

Landscapes

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

AT4127/84A 1983-12-30 1984-12-28 MAGNETIC CONVERTER HEAD AT393566B (en)

Applications Claiming Priority (3)

Application Number	Priority Date	Filing Date	Title
JP58250988A JPS60229210A (en)	1983-12-30	1983-12-30	Magnetic head
JP59078242A JPS60223012A (en)	1984-04-18	1984-04-18	Magnetic head
JP9975184A JPS60243810A (en)	1984-05-18	1984-05-18	Magnetic head

Publications (2)

Publication Number	Publication Date
ATA412784A true ATA412784A (en)	1991-04-15
AT393566B AT393566B (en)	1991-11-11

Family

ID=27302650

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
AT4127/84A AT393566B (en)	1983-12-30	1984-12-28	MAGNETIC CONVERTER HEAD

Country Status (8)

Country	Link
AT (1)	AT393566B (en)
AU (1)	AU582736B2 (en)
CA (1)	CA1236212A (en)
DE (1)	DE3447700A1 (en)
FR (1)	FR2558000B1 (en)
GB (1)	GB2153581B (en)
IT (1)	IT1182707B (en)
NL (1)	NL194772C (en)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
JPH0654527B2 (en) *	1984-11-26	1994-07-20	ソニー株式会社	Magnetic head
DE3634305A1 (en) *	1985-10-09	1987-04-16	Canon Kk	MAGNETIC HEAD
DE3687217D1 (en) *	1985-11-29	1993-01-14	Grundig Emv	METHOD FOR PRODUCING MAGNETIC HEADS.
JPH0654528B2 (en) *	1986-04-23	1994-07-20	株式会社日立製作所	Magnetic head
JPS62266712A (en) *	1986-05-14	1987-11-19	Mitsubishi Electric Corp	Composite magnetic head
DE3769844D1 (en) *	1986-05-21	1991-06-13	Philips Nv	MAGNETIC HEAD WITH CLOTHED CORE SURFACES.
JPS6370912A (en) *	1986-09-12	1988-03-31	Hitachi Ltd	Glass for magnetic head gap bonding
JPS63146202A (en) *	1986-12-09	1988-06-18	Canon Electronics Inc	Magnetic head and its production
JP2513205B2 (en) *	1987-02-04	1996-07-03	ソニー株式会社	Composite magnetic head
GB2268309B (en) *	1992-06-16	1996-09-11	Samsung Electro Mech	Composite magnetic head

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
NL263324A (en) *	1961-04-07
US4219855A (en) *	1978-12-21	1980-08-26	International Business Machines Corporation	Thin film magnetic head
JPS56124111A (en) *	1980-03-06	1981-09-29	Matsushita Electric Ind Co Ltd	Production of magnetic head
JPS56124112A (en) *	1980-03-06	1981-09-29	Matsushita Electric Ind Co Ltd	Magnetic head
JPS56169214A (en) *	1980-06-02	1981-12-25	Nippon Hoso Kyokai <Nhk>	Magnetic head
KR850001445B1 (en) *	1981-03-10	1985-10-05	이우에 가오루	Magnetic head
JPS58155513A (en) *	1982-03-10	1983-09-16	Hitachi Ltd	Composite magnetic head and its manufacture
JPS58175122A (en) *	1982-04-07	1983-10-14	Hitachi Ltd	Magnetic head and its manufacturing method
JPS598120A (en) *	1982-07-05	1984-01-17	Sharp Corp	Production of magnetic head
JPS59207415A (en) *	1983-05-11	1984-11-24	Hitachi Ltd	Compound magnetic head and its preparation

1984
- 1984-12-18 CA CA000470379A patent/CA1236212A/en not_active Expired
- 1984-12-21 AU AU37074/84A patent/AU582736B2/en not_active Expired
- 1984-12-21 GB GB08432443A patent/GB2153581B/en not_active Expired
- 1984-12-27 IT IT49363/84A patent/IT1182707B/en active
- 1984-12-28 AT AT4127/84A patent/AT393566B/en not_active IP Right Cessation
- 1984-12-28 DE DE3447700A patent/DE3447700A1/en active Granted
- 1984-12-28 FR FR8420082A patent/FR2558000B1/en not_active Expired - Lifetime
- 1984-12-31 NL NL8403971A patent/NL194772C/en not_active IP Right Cessation

Also Published As

Publication number	Publication date
AU3707484A (en)	1985-07-04
NL8403971A (en)	1985-07-16
NL194772B (en)	2002-10-01
FR2558000B1 (en)	1994-02-25
GB8432443D0 (en)	1985-02-06
IT8449363A0 (en)	1984-12-27
NL194772C (en)	2003-02-04
GB2153581B (en)	1988-05-25
CA1236212A (en)	1988-05-03
IT1182707B (en)	1987-10-05
IT8449363A1 (en)	1986-06-27
AU582736B2 (en)	1989-04-13
AT393566B (en)	1991-11-11
DE3447700A1 (en)	1985-07-25
GB2153581A (en)	1985-08-21
DE3447700C2 (en)	1993-02-18
FR2558000A1 (en)	1985-07-12

Publication	Publication Date	Title
ATA91685A (en)	1991-07-15	MAGNETIC CONVERTER HEAD
DE3485393D1 (en)	1992-02-13	MAGNETIC HEAD.
ATA343485A (en)	1991-04-15	MAGNETIC CONVERTER HEAD
KR860006086A (en)	1986-08-18	Magnetic head
ATA412784A (en)	1991-04-15	MAGNETIC CONVERTER HEAD
DE3482069D1 (en)	1990-05-31	MAGNETIC HEAD.
FR2556195B1 (en)	1986-03-28	HEAD RESTS
KR860002083A (en)	1986-03-26	Magnetic converter
KR860005334A (en)	1986-07-21	Magnetic head
KR850009670U (en)	1985-12-05	Magnetic head
KR850009689U (en)	1985-12-05	Magnetic head device
KR860004057U (en)	1986-04-25	Magnetic head
KR850009662U (en)	1985-12-05	Magnetic head
KR850009661U (en)	1985-12-05	Magnetic head
KR850009663U (en)	1985-12-05	Magnetic head
KR870015328U (en)	1987-10-24	Magnetic head
KR840006370U (en)	1984-12-03	Magnetic head
KR850009658U (en)	1985-12-05	Magnetic head device
KR850009664U (en)	1985-12-05	Magnetic head
KR840006367U (en)	1984-12-03	Magnetic head
KR850009655U (en)	1985-12-05	Magnetic head
BR8402943A (en)	1985-05-28	MAGNETIC HEAD
KR850009666U (en)	1985-12-05	Magnetic head
KR850009665U (en)	1985-12-05	Magnetic head
KR860008547U (en)	1986-07-28	Magnetic head

Legal Events

Date	Code	Title	Description
2005-09-15	ELA	Expired due to lapse of time