KR870010489A - 자기헤드용 코어 제조방법 - Google Patents

자기헤드용 코어 제조방법

Info

Publication number: KR870010489A
Authority: KR; South Korea
Prior art keywords: magnetic head; core manufacturing; core; manufacturing; magnetic
Prior art date: 1986-04-02
Legal status (The legal status 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 status listed.): Granted

Application number

KR1019870003142A

Other languages

English (en)

Other versions

KR920004216B1 (ko

Inventor

쇼오헤이 나가또모

미끼오 다까이

히데또 산다이지

쇼오지 오오하라

Original Assignee

가부시끼가이샤 디에스스캐너

닛뽄 가이시가부시기가이샤

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.)

1986-04-02

Filing date

1987-04-02

Publication date

1987-11-30

1987-04-02 Application filed by 가부시끼가이샤 디에스스캐너, 닛뽄 가이시가부시기가이샤 filed Critical 가부시끼가이샤 디에스스캐너

1987-11-30 Publication of KR870010489A publication Critical patent/KR870010489A/ko

1992-05-30 Application granted granted Critical

1992-05-30 Publication of KR920004216B1 publication Critical patent/KR920004216B1/ko

Status Expired legal-status Critical Current

Links

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
- G11B5/187—Structure or manufacture of the surface of the head in physical contact with, or immediately adjacent to the recording medium; Pole pieces; Gap features
- G11B5/193—Structure or manufacture of the surface of the head in physical contact with, or immediately adjacent to the recording medium; Pole pieces; Gap features the pole pieces being ferrite or other magnetic particles
- 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
- 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]
- Y10T29/4905—Employing workholding means
- 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]
- Y10T29/49052—Machining magnetic material [e.g., grinding, etching, polishing] by etching

Landscapes

Engineering & Computer Science (AREA)
Manufacturing & Machinery (AREA)
Magnetic Heads (AREA)
ing And Chemical Polishing (AREA)

KR1019870003142A 1986-04-02 1987-04-02 자기헤드용 코어 제조방법 Expired KR920004216B1 (ko)

Applications Claiming Priority (4)

Application Number	Priority Date	Filing Date	Title
JP75888/86		1986-04-02
JP7588886		1986-04-02
JP62045629A JPH066798B2 (ja)	1986-04-02	1987-02-27	磁気ヘツド用コアの製造方法
JP45629/87		1987-02-27

Publications (2)

Publication Number	Publication Date
KR870010489A true KR870010489A (ko)	1987-11-30
KR920004216B1 KR920004216B1 (ko)	1992-05-30

Family

ID=13589288

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
KR1019870003142A Expired KR920004216B1 (ko)	1986-04-02	1987-04-02	자기헤드용 코어 제조방법

Country Status (2)

Country	Link
JP (1)	JPH066798B2 (ko)
KR (1)	KR920004216B1 (ko)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
KR100363235B1 (ko) *	1995-02-28	2003-02-19	삼성전자 주식회사	자기헤드의제조방법

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
JPH0689460B2 (ja) *	1988-03-02	1994-11-09	日本碍子株式会社	磁気ヘッド用コアの製造方法

1987
- 1987-02-27 JP JP62045629A patent/JPH066798B2/ja not_active Expired - Lifetime
- 1987-04-02 KR KR1019870003142A patent/KR920004216B1/ko not_active Expired

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
KR100363235B1 (ko) *	1995-02-28	2003-02-19	삼성전자 주식회사	자기헤드의제조방법

Also Published As

Publication number	Publication date
JPS6345387A (ja)	1988-02-26
KR920004216B1 (ko)	1992-05-30
JPH066798B2 (ja)	1994-01-26

Legal Events

Date	Code	Title	Description
1987-04-02	A201	Request for examination
1987-04-02	PA0109	Patent application	St.27 status event code: A-0-1-A10-A12-nap-PA0109
1987-04-02	PA0201	Request for examination	St.27 status event code: A-1-2-D10-D11-exm-PA0201
1987-04-02	R17-X000	Change to representative recorded	St.27 status event code: A-3-3-R10-R17-oth-X000
1987-07-01	P11-X000	Amendment of application requested	St.27 status event code: A-2-2-P10-P11-nap-X000
1987-07-01	P13-X000	Application amended	St.27 status event code: A-2-2-P10-P13-nap-X000
1987-11-30	PG1501	Laying open of application	St.27 status event code: A-1-1-Q10-Q12-nap-PG1501
1991-07-30	E902	Notification of reason for refusal
1991-07-30	PE0902	Notice of grounds for rejection	St.27 status event code: A-1-2-D10-D21-exm-PE0902
1991-09-28	T11-X000	Administrative time limit extension requested	St.27 status event code: U-3-3-T10-T11-oth-X000
1991-10-29	T11-X000	Administrative time limit extension requested	St.27 status event code: U-3-3-T10-T11-oth-X000
1991-12-30	P11-X000	Amendment of application requested	St.27 status event code: A-2-2-P10-P11-nap-X000
1991-12-30	P13-X000	Application amended	St.27 status event code: A-2-2-P10-P13-nap-X000
1992-04-29	G160	Decision to publish patent application
1992-05-30	PG1605	Publication of application before grant of patent	St.27 status event code: A-2-2-Q10-Q13-nap-PG1605
1992-08-20	E701	Decision to grant or registration of patent right
1992-08-20	PE0701	Decision of registration	St.27 status event code: A-1-2-D10-D22-exm-PE0701
1992-11-10	GRNT	Written decision to grant
1992-11-10	PR0701	Registration of establishment	St.27 status event code: A-2-4-F10-F11-exm-PR0701
1992-11-10	PR1002	Payment of registration fee	St.27 status event code: A-2-2-U10-U11-oth-PR1002 Fee payment year number: 1
1995-04-21	PR1001	Payment of annual fee	St.27 status event code: A-4-4-U10-U11-oth-PR1001 Fee payment year number: 4
1996-04-19	PR1001	Payment of annual fee	St.27 status event code: A-4-4-U10-U11-oth-PR1001 Fee payment year number: 5
1997-05-12	PR1001	Payment of annual fee	St.27 status event code: A-4-4-U10-U11-oth-PR1001 Fee payment year number: 6
1998-04-20	PR1001	Payment of annual fee	St.27 status event code: A-4-4-U10-U11-oth-PR1001 Fee payment year number: 7
1999-01-07	PN2301	Change of applicant	St.27 status event code: A-5-5-R10-R13-asn-PN2301 St.27 status event code: A-5-5-R10-R11-asn-PN2301
1999-04-21	PR1001	Payment of annual fee	St.27 status event code: A-4-4-U10-U11-oth-PR1001 Fee payment year number: 8
2000-04-12	PR1001	Payment of annual fee	St.27 status event code: A-4-4-U10-U11-oth-PR1001 Fee payment year number: 9
2001-04-26	FPAY	Annual fee payment	Payment date: 20010426 Year of fee payment: 10
2001-04-26	PR1001	Payment of annual fee	St.27 status event code: A-4-4-U10-U11-oth-PR1001 Fee payment year number: 10
2002-05-31	LAPS	Lapse due to unpaid annual fee
2002-05-31	PC1903	Unpaid annual fee	St.27 status event code: A-4-4-U10-U13-oth-PC1903 Not in force date: 20020531 Payment event data comment text: Termination Category : DEFAULT_OF_REGISTRATION_FEE
2003-02-10	PC1903	Unpaid annual fee	St.27 status event code: N-4-6-H10-H13-oth-PC1903 Ip right cessation event data comment text: Termination Category : DEFAULT_OF_REGISTRATION_FEE Not in force date: 20020531
2010-11-17	R18-X000	Changes to party contact information recorded	St.27 status event code: A-5-5-R10-R18-oth-X000
2012-10-30	R18-X000	Changes to party contact information recorded	St.27 status event code: A-5-5-R10-R18-oth-X000
2018-12-22	P22-X000	Classification modified	St.27 status event code: A-4-4-P10-P22-nap-X000
2019-09-06	R18-X000	Changes to party contact information recorded	St.27 status event code: A-5-5-R10-R18-oth-X000
2026-04-21	PN2301	Change of applicant	St.27 status event code: A-5-5-R10-R13-asn-PN2301 St.27 status event code: A-5-5-R10-R11-asn-PN2301

Publication	Publication Date	Title
KR840008862A (ko)	1984-12-19	자기 헤드 및 그 제조방법
DE3668722D1 (de)	1990-03-08	Magnetkern und herstellungsverfahren.
NO873438L (no)	1988-02-16	Fremgangsmaate for fremstilling av en magnetisk kjerne.
DE3583619D1 (de)	1991-09-05	Magnetkopfkern und herstellungsverfahren.
KR840009160A (ko)	1984-12-24	자기헤드 및 그 제조방법
DE3481953D1 (de)	1990-05-17	Magnetkopfkern und herstellungsverfahren.
DE3581694D1 (de)	1991-03-14	Magnetkopf und herstellungsverfahren.
AT388822B (de)	1989-09-11	Magnetkopf
DE3482516D1 (de)	1990-07-19	Magnetkopfkern und herstellungsverfahren.
KR870009519A (ko)	1987-10-27	자석식전동기의 요크제조방법
KR860005334A (ko)	1986-07-21	자기 헤드
KR870010489A (ko)	1987-11-30	자기헤드용 코어 제조방법
KR850005670A (ko)	1985-08-28	자기헤드용 코어
KR880004429A (ko)	1988-06-07	자기헤드 코어 및 그 제조방법
KR880008240A (ko)	1988-08-30	자기헤드 제조방법
KR870012691U (ko)	1987-08-05	자기 헤드용 코일
KR880008241A (ko)	1988-08-30	자기헤드 코아의 제조방법
EP0221583A3 (en)	1987-05-27	Method of manufacturing magnetic head cores
KR890700253A (ko)	1989-03-10	마그네틱 헤드와 그 제조방법
KR860004057U (ko)	1986-04-25	자기 헤드
DE3675974D1 (de)	1991-01-17	Verfahren zum herstellen von magnetkopfkernen.
FR2552258B3 (fr)	1986-01-10	Noyau magnetique
KR870015328U (ko)	1987-10-24	자기헤드
KR860008547U (ko)	1986-07-28	자기 헤드
KR890009387U (ko)	1989-05-30	자기헤드

KR870010489A - 자기헤드용 코어 제조방법 - Google Patents

Info

Links

Classifications

Landscapes

Applications Claiming Priority (4)

Publications (2)

Family

ID=13589288

Family Applications (1)

Country Status (2)

Cited By (1)

Families Citing this family (1)

Cited By (1)

Also Published As

Similar Documents

Legal Events