KR850000101A - 복합형 자기헤드 및 그 제조방법 - Google Patents
복합형 자기헤드 및 그 제조방법Info
- Publication number
- KR850000101A KR850000101A KR1019840002514A KR840002514A KR850000101A KR 850000101 A KR850000101 A KR 850000101A KR 1019840002514 A KR1019840002514 A KR 1019840002514A KR 840002514 A KR840002514 A KR 840002514A KR 850000101 A KR850000101 A KR 850000101A
- Authority
- KR
- South Korea
- Prior art keywords
- manufacturing
- magnetic head
- composite magnetic
- composite
- head
- Prior art date
Links
- 239000002131 composite material Substances 0.000 title 1
- 238000004519 manufacturing process Methods 0.000 title 1
Classifications
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01K—ANIMAL HUSBANDRY; AVICULTURE; APICULTURE; PISCICULTURE; FISHING; REARING OR BREEDING ANIMALS, NOT OTHERWISE PROVIDED FOR; NEW BREEDS OF ANIMALS
- A01K89/00—Reels
- A01K89/01—Reels with pick-up, i.e. with the guiding member rotating and the spool not rotating during normal retrieval of the line
-
- 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
- G11B5/1872—Shaping or contouring of the transducing or guiding surface for improving the form of the electrical signal transduced, e.g. compensation of "contour effect"
- G11B5/1874—Shaping or contouring of the transducing or guiding surface for improving the form of the electrical signal transduced, e.g. compensation of "contour effect" specially adapted for composite pole pieces, e.g. for avoiding "pseudo-gap"
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Life Sciences & Earth Sciences (AREA)
- Environmental Sciences (AREA)
- Animal Husbandry (AREA)
- Biodiversity & Conservation Biology (AREA)
- Magnetic Heads (AREA)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP58080896A JPS59207415A (ja) | 1983-05-11 | 1983-05-11 | 複合型磁気ヘツドおよびその製造方法 |
JP58-80896 | 1983-05-11 |
Publications (2)
Publication Number | Publication Date |
---|---|
KR850000101A true KR850000101A (ko) | 1985-02-25 |
KR910007872B1 KR910007872B1 (ko) | 1991-10-02 |
Family
ID=13731121
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
KR1019840002514A KR910007872B1 (ko) | 1983-05-11 | 1984-05-10 | 복합형 자기헤드 및 그 제조방법 |
Country Status (5)
Country | Link |
---|---|
US (1) | US4656547A (ko) |
EP (1) | EP0125891B1 (ko) |
JP (1) | JPS59207415A (ko) |
KR (1) | KR910007872B1 (ko) |
DE (1) | DE3475019D1 (ko) |
Families Citing this family (39)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6089805A (ja) * | 1983-10-24 | 1985-05-20 | Sony Corp | 磁気消去ヘツド |
JPS6095705A (ja) * | 1983-10-29 | 1985-05-29 | Sony Corp | 磁気ヘツドの製造方法 |
CA1236212A (en) * | 1983-12-30 | 1988-05-03 | Heikichi Sato | Magnetic transducer head with slanted thin film |
AU578273B2 (en) * | 1984-03-29 | 1988-10-20 | Sony Corporation | Trahsdermal bopindolol compositions |
US4819113A (en) * | 1984-03-29 | 1989-04-04 | Sony Corporation | Magnetic transducer head with inclined magnetic gap |
JPH0656647B2 (ja) * | 1985-01-26 | 1994-07-27 | ソニー株式会社 | 磁気ヘツド |
JPS60256904A (ja) * | 1984-06-01 | 1985-12-18 | Hitachi Ltd | 磁気ヘツド |
JPS6139907A (ja) * | 1984-08-01 | 1986-02-26 | Hitachi Maxell Ltd | 磁気ヘツド |
EP0179269B1 (en) * | 1984-09-19 | 1991-11-06 | Hitachi Maxell Ltd. | Magnetic head |
JPS6174118A (ja) * | 1984-09-19 | 1986-04-16 | Hitachi Maxell Ltd | 磁気ヘツド |
JPS61126614A (ja) * | 1984-11-21 | 1986-06-14 | Victor Co Of Japan Ltd | 磁気ヘツド及びその製造方法 |
JPS61158015A (ja) * | 1984-12-29 | 1986-07-17 | Sony Corp | 磁気ヘツドの製造方法 |
JPS61184705A (ja) * | 1985-02-13 | 1986-08-18 | Hitachi Ltd | 磁気ヘツド |
JPS61230606A (ja) * | 1985-04-05 | 1986-10-14 | Hitachi Ltd | 磁気ヘツド |
JPS61230605A (ja) * | 1985-04-05 | 1986-10-14 | Hitachi Ltd | 磁気ヘツドの製造方法 |
KR910000790B1 (ko) * | 1985-04-30 | 1991-02-08 | 마쯔시다덴기산교 가부시기가이샤 | 자기헤드 및 그 제조방법 |
JPH0766494B2 (ja) * | 1985-06-19 | 1995-07-19 | 株式会社日立製作所 | 磁気ヘツド |
US4777074A (en) * | 1985-08-12 | 1988-10-11 | Sumitomo Special Metals Co., Ltd. | Grooved magnetic substrates and method for producing the same |
DE3630841A1 (de) * | 1985-09-13 | 1987-03-26 | Hitachi Metals Ltd | Fliegender magnetkopf |
DE3634305A1 (de) * | 1985-10-09 | 1987-04-16 | Canon Kk | Magnetkopf |
EP0222183B1 (en) * | 1985-10-14 | 1994-01-12 | Hitachi, Ltd. | Thin film magnetic head |
JPS62145511A (ja) * | 1985-12-20 | 1987-06-29 | Hitachi Ltd | 磁気ヘツド |
JPS62159306A (ja) * | 1985-12-30 | 1987-07-15 | Sony Corp | 磁気ヘツド |
CN1012113B (zh) * | 1986-05-21 | 1991-03-20 | 菲利浦光灯制造公司 | 磁芯面装有包层的磁传感头 |
JPS6356804A (ja) * | 1986-08-27 | 1988-03-11 | Mitsubishi Electric Corp | 磁気ヘツド |
JPS63119007A (ja) * | 1986-11-07 | 1988-05-23 | Hitachi Maxell Ltd | 磁気ヘツド |
JPS63146202A (ja) * | 1986-12-09 | 1988-06-18 | Canon Electronics Inc | 磁気ヘツド及びその製造方法 |
JP2513205B2 (ja) * | 1987-02-04 | 1996-07-03 | ソニー株式会社 | 複合磁気ヘツド |
US5195004A (en) * | 1987-07-14 | 1993-03-16 | Sanyo Electric Co., Ltd. | Method of manufacturing a magnetic core half |
US5278716A (en) * | 1987-07-14 | 1994-01-11 | Sanyo Electric Co. | Magnetic head with suppressed generation of pseudogap |
US5228185A (en) * | 1988-04-05 | 1993-07-20 | Matsushita Electric Industrial Co., Ltd. | Method of manufacturing a magnetic head |
US5170301A (en) * | 1988-08-03 | 1992-12-08 | Matsushita Electric Industrial Co., Ltd. | Magnetic head having core parts joined by low-melting point crystallized glass with composite gap |
US5001588A (en) * | 1989-06-30 | 1991-03-19 | Ampex Corporation | Composite core magnetic transducer having a wedge shaped core portion |
DE69011066T2 (de) * | 1989-12-29 | 1995-03-16 | Sony Corp | Weichmagnetische dünne Filme auf Fe-N-Basis und solche Filme verwendender Magnetkopf. |
JPH0430308A (ja) * | 1990-05-25 | 1992-02-03 | Hitachi Ltd | 磁気ヘッドおよびその製造方法 |
WO1993011531A1 (en) * | 1991-12-02 | 1993-06-10 | Nikko Kyodo Company, Limited | Thin film magnetic head |
JPH1091912A (ja) * | 1996-09-17 | 1998-04-10 | Sony Corp | 磁気ヘッド |
US6995951B2 (en) * | 2001-04-03 | 2006-02-07 | Sony Corporation | Method of planarizing substrate, magnetic head and manufacturing method of the same |
US7492550B2 (en) * | 2003-11-18 | 2009-02-17 | Tandberg Storage Asa | Magnetic recording head and method for high coercivity media, employing concentrated stray magnetic fields |
Family Cites Families (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3813693A (en) * | 1970-08-28 | 1974-05-28 | Ampex | Magnetic head with protective pockets of glass adjacent the corners of the gap |
US3795954A (en) * | 1971-11-26 | 1974-03-12 | Honeywell Inf Systems | Method of making a micro-gap magnetic recording head |
JPS5312740A (en) * | 1976-07-23 | 1978-02-04 | Matsushita Electric Ind Co Ltd | Liquid for electrolytically etching ferrite |
JPS5496013A (en) * | 1978-01-13 | 1979-07-30 | Matsushita Electric Ind Co Ltd | Compound magnetic head |
JPS5558824A (en) * | 1978-10-24 | 1980-05-01 | Sanyo Electric Co Ltd | Magnetic head |
JPS56124111A (en) * | 1980-03-06 | 1981-09-29 | Matsushita Electric Ind Co Ltd | Production of magnetic head |
US4279633A (en) * | 1980-03-18 | 1981-07-21 | Matsushita Electric Industrial Co., Ltd. | Method of producing magnetic head |
JPS56169214A (en) * | 1980-06-02 | 1981-12-25 | Nippon Hoso Kyokai <Nhk> | Magnetic head |
JPS59142716A (ja) * | 1983-02-04 | 1984-08-16 | Hitachi Ltd | 磁気ヘツドおよびその製造方法 |
-
1983
- 1983-05-11 JP JP58080896A patent/JPS59207415A/ja active Granted
-
1984
- 1984-05-09 US US06/608,407 patent/US4656547A/en not_active Expired - Lifetime
- 1984-05-10 KR KR1019840002514A patent/KR910007872B1/ko not_active IP Right Cessation
- 1984-05-10 DE DE8484303167T patent/DE3475019D1/de not_active Expired
- 1984-05-10 EP EP84303167A patent/EP0125891B1/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
JPH0477370B2 (ko) | 1992-12-08 |
EP0125891B1 (en) | 1988-11-02 |
JPS59207415A (ja) | 1984-11-24 |
KR910007872B1 (ko) | 1991-10-02 |
US4656547A (en) | 1987-04-07 |
DE3475019D1 (en) | 1988-12-08 |
EP0125891A1 (en) | 1984-11-21 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
A201 | Request for examination | ||
G160 | Decision to publish patent application | ||
E701 | Decision to grant or registration of patent right | ||
GRNT | Written decision to grant | ||
FPAY | Annual fee payment |
Payment date: 20020923 Year of fee payment: 12 |
|
LAPS | Lapse due to unpaid annual fee |