FR2520540B1 - Tete magnetique et son procede de fabrication - Google Patents
Tete magnetique et son procede de fabricationInfo
- Publication number
- FR2520540B1 FR2520540B1 FR8301259A FR8301259A FR2520540B1 FR 2520540 B1 FR2520540 B1 FR 2520540B1 FR 8301259 A FR8301259 A FR 8301259A FR 8301259 A FR8301259 A FR 8301259A FR 2520540 B1 FR2520540 B1 FR 2520540B1
- Authority
- FR
- France
- Prior art keywords
- manufacturing
- magnetic head
- magnetic
- head
- 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
- G11B5/187—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
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Magnetic Heads (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP57012296A JPS58130421A (ja) | 1982-01-28 | 1982-01-28 | 磁気ヘツド及びその製造方法 |
Publications (2)
Publication Number | Publication Date |
---|---|
FR2520540A1 FR2520540A1 (fr) | 1983-07-29 |
FR2520540B1 true FR2520540B1 (fr) | 1988-04-22 |
Family
ID=11801361
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR8301259A Expired FR2520540B1 (fr) | 1982-01-28 | 1983-01-27 | Tete magnetique et son procede de fabrication |
Country Status (7)
Families Citing this family (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4697217A (en) * | 1982-10-13 | 1987-09-29 | Sanyo Electric Co., Ltd. | Magnetic head having a main core of sheet amorphous magnetic material |
DE3319437C2 (de) * | 1983-05-28 | 1985-04-04 | Grundig E.M.V. Elektro-Mechanische Versuchsanstalt Max Grundig holländ. Stiftung & Co KG, 8510 Fürth | Magnetkopf und Verfahren zu seiner Herstellung |
US4755898A (en) * | 1983-06-13 | 1988-07-05 | Matsushita Electric Industrial Co., Ltd. | Amorphous magnetic head |
JPS60192117U (ja) * | 1984-05-25 | 1985-12-20 | アルプス電気株式会社 | 浮動式磁気ヘツド |
US4701820A (en) * | 1984-11-08 | 1987-10-20 | Eastman Kodak Company | Slant gap thin-film head having first and second wedge-shaped structures |
FR2576702A1 (fr) * | 1985-01-30 | 1986-08-01 | Pioneer Electronic Corp | Tete magnetique et son procede de production |
DE3503286A1 (de) * | 1985-01-31 | 1986-08-07 | Pioneer Electronic Corp., Tokio/Tokyo | Magnetkopf und verfahren zu seiner herstellung |
JPS61243907A (ja) * | 1985-04-20 | 1986-10-30 | Matsushita Electric Ind Co Ltd | 磁気ヘツド |
DE3621873A1 (de) * | 1986-06-30 | 1988-01-14 | Grundig Emv | Verfahren zur herstellung eines magnetkopfes |
US5309306A (en) * | 1991-06-10 | 1994-05-03 | Mitsubishi Denki Kabushiki Kaisha | Complex magnetic head |
Family Cites Families (21)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR1225832A (fr) * | 1959-02-20 | 1960-07-04 | Procedes Magnetiques Francais | Perfectionnement aux têtes d'enregistrement magnétique à défilement transversal |
GB1036001A (en) * | 1963-01-07 | 1966-07-13 | Rank Bush Murphy Ltd | Electromagnetic transducer head |
US3303292A (en) * | 1963-02-25 | 1967-02-07 | Ampex | Magnetic head assembly |
DE1474335A1 (de) * | 1965-11-12 | 1969-07-17 | Grundig Emv | Magnetkopf fuer schmale Spurbreiten,insbesondere Videokopf |
US3842494A (en) * | 1969-03-11 | 1974-10-22 | Matsushita Electric Ind Co Ltd | Multichannel magnetic ferrite head and a method for making the same |
US3737991A (en) * | 1970-08-18 | 1973-06-12 | Matsushita Electric Ind Co Ltd | Method of making a multi-channel magnetic head |
US3761641A (en) * | 1971-06-25 | 1973-09-25 | Ampex | Magnetic head with demountable face part assembly |
GB1385946A (en) * | 1972-06-06 | 1975-03-05 | Int Computers Ltd | Methods of manufacturing magnetic transducing heads |
GB1411234A (en) * | 1972-10-19 | 1975-10-22 | Int Computers Ltd | Magnetic transducing heads |
JPS5266413A (en) * | 1975-11-28 | 1977-06-01 | Sanyo Electric Co Ltd | Magnetic head and its production |
JPS5312316A (en) * | 1976-07-20 | 1978-02-03 | Matsushita Electric Ind Co Ltd | Production of magnetic head |
JPS5370808A (en) * | 1976-12-07 | 1978-06-23 | Victor Co Of Japan Ltd | Magnetic head |
JPS551673A (en) * | 1978-06-20 | 1980-01-08 | Matsushita Electric Ind Co Ltd | Manufacture for magnetic head |
JPS5542379A (en) * | 1978-09-20 | 1980-03-25 | Matsushita Electric Ind Co Ltd | Manufacture of magnetic head |
US4217613A (en) * | 1978-11-06 | 1980-08-12 | Rca Corporation | Magnetic transducer head core |
JPS5564625A (en) * | 1978-11-10 | 1980-05-15 | Matsushita Electric Ind Co Ltd | Manufacuture of magnetic head |
JPS55150131A (en) * | 1979-05-11 | 1980-11-21 | Fujitsu Ltd | Head for magnetic disk |
JPS55160321A (en) * | 1979-06-01 | 1980-12-13 | Hitachi Ltd | Magnetic head |
DE3103767C2 (de) * | 1980-02-04 | 1986-12-04 | Sanyo Electric Co., Ltd., Moriguchi, Osaka | Magnetkopf |
JPS5744216A (en) * | 1980-08-27 | 1982-03-12 | Sony Corp | Magnetic head |
US4475137A (en) * | 1981-05-11 | 1984-10-02 | Sanyo Electric Co., Ltd. | Magnetic transducer |
-
1982
- 1982-01-28 JP JP57012296A patent/JPS58130421A/ja active Pending
-
1983
- 1983-01-26 US US06/461,057 patent/US4595964A/en not_active Expired - Fee Related
- 1983-01-27 FR FR8301259A patent/FR2520540B1/fr not_active Expired
- 1983-01-27 GB GB08302247A patent/GB2117552B/en not_active Expired
- 1983-01-27 DE DE19833302695 patent/DE3302695A1/de active Granted
- 1983-01-28 KR KR1019830000333A patent/KR860001743B1/ko not_active IP Right Cessation
-
1987
- 1987-12-30 MY MY255/87A patent/MY8700255A/xx unknown
Also Published As
Publication number | Publication date |
---|---|
JPS58130421A (ja) | 1983-08-03 |
DE3302695A1 (de) | 1983-08-04 |
GB8302247D0 (en) | 1983-03-02 |
FR2520540A1 (fr) | 1983-07-29 |
US4595964A (en) | 1986-06-17 |
GB2117552B (en) | 1985-11-13 |
DE3302695C2 (US20030204162A1-20031030-M00001.png) | 1987-11-12 |
GB2117552A (en) | 1983-10-12 |
KR840003507A (ko) | 1984-09-08 |
KR860001743B1 (ko) | 1986-10-20 |
MY8700255A (en) | 1987-12-31 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
ST | Notification of lapse |