JPS5652371B2 - - Google Patents
Info
- Publication number
- JPS5652371B2 JPS5652371B2 JP14678876A JP14678876A JPS5652371B2 JP S5652371 B2 JPS5652371 B2 JP S5652371B2 JP 14678876 A JP14678876 A JP 14678876A JP 14678876 A JP14678876 A JP 14678876A JP S5652371 B2 JPS5652371 B2 JP S5652371B2
- Authority
- JP
- Japan
- 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
- G11B5/133—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
-
- 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
- G11B5/187—Structure or manufacture of the surface of the head in physical contact with, or immediately adjacent to the recording medium; Pole pieces; Gap features
- G11B5/23—Gap features
- G11B5/235—Selection of material for gap filler
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Magnetic Heads (AREA)
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14678876A JPS5370808A (en) | 1976-12-07 | 1976-12-07 | Magnetic head |
| US05/856,963 US4152741A (en) | 1976-12-07 | 1977-12-02 | Ferrite core magnetic head with improved reinforcement filler |
| DE2754536A DE2754536C2 (de) | 1976-12-07 | 1977-12-07 | Ferritkern-Magnetkopf mit Verstärkungs-Füllmaterial |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14678876A JPS5370808A (en) | 1976-12-07 | 1976-12-07 | Magnetic head |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5370808A JPS5370808A (en) | 1978-06-23 |
| JPS5652371B2 true JPS5652371B2 (OSRAM) | 1981-12-11 |
Family
ID=15415542
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP14678876A Granted JPS5370808A (en) | 1976-12-07 | 1976-12-07 | Magnetic head |
Country Status (3)
| Country | Link |
|---|---|
| US (1) | US4152741A (OSRAM) |
| JP (1) | JPS5370808A (OSRAM) |
| DE (1) | DE2754536C2 (OSRAM) |
Families Citing this family (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4317149A (en) * | 1980-06-02 | 1982-02-23 | International Business Machines Corporation | Magnetic head having static discharge means |
| JPS58130421A (ja) * | 1982-01-28 | 1983-08-03 | Victor Co Of Japan Ltd | 磁気ヘツド及びその製造方法 |
| DE3316747A1 (de) * | 1983-05-07 | 1984-11-08 | Grundig E.M.V. Elektro-Mechanische Versuchsanstalt Max Grundig & 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 |
| EP0179269B1 (en) * | 1984-09-19 | 1991-11-06 | Hitachi Maxell Ltd. | Magnetic head |
| JPS62114108A (ja) * | 1985-11-14 | 1987-05-25 | Mitsubishi Electric Corp | 電磁変換素子 |
| US5245488A (en) * | 1986-08-13 | 1993-09-14 | Seiko Epson Corporation | Low-noise composite magnetic head for recording and producing |
| JPS63211110A (ja) * | 1987-02-27 | 1988-09-02 | Pioneer Electronic Corp | 磁気ヘツドの製造方法 |
| JP4851062B2 (ja) * | 2003-12-10 | 2012-01-11 | スミダコーポレーション株式会社 | インダクタンス素子の製造方法 |
| EP2026595B1 (de) | 2007-08-14 | 2010-03-31 | Klaus Reck | Koaxiallautsprecher |
| DE102012213263A1 (de) * | 2011-09-20 | 2013-03-21 | Robert Bosch Gmbh | Handwerkzeugvorrichtung mit zumindest einer Ladespule |
Family Cites Families (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1269159B (de) * | 1961-04-07 | 1968-05-30 | Philips Nv | Magnetkopf aus zwei, durch einen mit nichtmagnetischem Material ausgefuellten Nutzspalt getrennten Kreisteilen zum Aufzeichnen, Wiedergeben und/oder Loeschen von videofrequenten Signalen und Verfahren zu seiner Herstellung |
| AT237059B (de) * | 1962-09-28 | 1964-11-25 | Philips Nv | Verfahren zur Herstellung eines Magnetkopfes |
| US3369292A (en) * | 1962-11-23 | 1968-02-20 | North American Phillips Compan | Method of forming glass bonded heads |
| US3641281A (en) * | 1964-08-18 | 1972-02-08 | Peter F Varadi | Magnetic transducer having a conductive metal powder gap spacer |
| US3440360A (en) * | 1964-10-03 | 1969-04-22 | Matsushita Electric Industrial Co Ltd | Magnetic head with notched pole tips |
| US3605259A (en) * | 1968-03-06 | 1971-09-20 | Matsushita Electric Industrial Co Ltd | Method of manufacturing a pair of pole pieces for a magnetic head |
| US3721000A (en) * | 1968-03-15 | 1973-03-20 | Sony Corp | Method of making a magnetic head |
| US3634933A (en) * | 1968-05-01 | 1972-01-18 | Rca Corp | Magnetic head method |
| US3579214A (en) * | 1968-06-17 | 1971-05-18 | Ibm | Multichannel magnetic head with common leg |
| DE1931003C3 (de) * | 1969-06-19 | 1978-04-13 | Robert Bosch Gmbh, 7000 Stuttgart | Magnetkopf für ein Magnetspeichergerät |
| GB1423520A (en) * | 1972-12-29 | 1976-02-04 | Data Recording Instr Co | Manufacture of magnetic transducing heads |
| JPS5427132B2 (OSRAM) * | 1974-02-21 | 1979-09-07 |
-
1976
- 1976-12-07 JP JP14678876A patent/JPS5370808A/ja active Granted
-
1977
- 1977-12-02 US US05/856,963 patent/US4152741A/en not_active Expired - Lifetime
- 1977-12-07 DE DE2754536A patent/DE2754536C2/de not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5370808A (en) | 1978-06-23 |
| US4152741A (en) | 1979-05-01 |
| DE2754536C2 (de) | 1986-02-20 |
| DE2754536A1 (de) | 1978-06-08 |