GB2153581B - Magnetic transducer heads - Google Patents
Magnetic transducer headsInfo
- Publication number
- GB2153581B GB2153581B GB08432443A GB8432443A GB2153581B GB 2153581 B GB2153581 B GB 2153581B GB 08432443 A GB08432443 A GB 08432443A GB 8432443 A GB8432443 A GB 8432443A GB 2153581 B GB2153581 B GB 2153581B
- Authority
- GB
- United Kingdom
- Prior art keywords
- magnetic transducer
- transducer heads
- heads
- magnetic
- transducer
- Prior art date
- 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.)
- Expired
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
- G11B5/31—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)
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 (3)
Publication Number | Publication Date |
---|---|
GB8432443D0 GB8432443D0 (en) | 1985-02-06 |
GB2153581A GB2153581A (en) | 1985-08-21 |
GB2153581B true GB2153581B (en) | 1988-05-25 |
Family
ID=27302650
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB08432443A Expired GB2153581B (en) | 1983-12-30 | 1984-12-21 | Magnetic transducer heads |
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)
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 |
EP0246706B1 (en) * | 1986-05-21 | 1991-05-08 | Koninklijke Philips Electronics N.V. | Magnetic transducing head having clad core faces |
JPS6370912A (en) * | 1986-09-12 | 1988-03-31 | Hitachi Ltd | Glass for joining magnetic head gap |
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)
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 |
JPS56124112A (en) * | 1980-03-06 | 1981-09-29 | Matsushita Electric Ind Co Ltd | Magnetic head |
JPS56124111A (en) * | 1980-03-06 | 1981-09-29 | Matsushita Electric Ind Co Ltd | Production of 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 | Compound magnetic head and its production |
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 GB GB08432443A patent/GB2153581B/en not_active Expired
- 1984-12-21 AU AU37074/84A patent/AU582736B2/en not_active Expired
- 1984-12-27 IT IT49363/84A patent/IT1182707B/en active
- 1984-12-28 DE DE3447700A patent/DE3447700A1/en active Granted
- 1984-12-28 FR FR8420082A patent/FR2558000B1/en not_active Expired - Lifetime
- 1984-12-28 AT AT4127/84A patent/AT393566B/en not_active IP Right Cessation
- 1984-12-31 NL NL8403971A patent/NL194772C/en not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
NL194772B (en) | 2002-10-01 |
AU3707484A (en) | 1985-07-04 |
AT393566B (en) | 1991-11-11 |
IT8449363A1 (en) | 1986-06-27 |
NL194772C (en) | 2003-02-04 |
ATA412784A (en) | 1991-04-15 |
NL8403971A (en) | 1985-07-16 |
DE3447700C2 (en) | 1993-02-18 |
GB8432443D0 (en) | 1985-02-06 |
FR2558000B1 (en) | 1994-02-25 |
DE3447700A1 (en) | 1985-07-25 |
AU582736B2 (en) | 1989-04-13 |
CA1236212A (en) | 1988-05-03 |
IT8449363A0 (en) | 1984-12-27 |
FR2558000A1 (en) | 1985-07-12 |
IT1182707B (en) | 1987-10-05 |
GB2153581A (en) | 1985-08-21 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PE20 | Patent expired after termination of 20 years |
Effective date: 20041220 |