IT986180B - Testine magnetiche e metodo per fabbricarle - Google Patents
Testine magnetiche e metodo per fabbricarleInfo
- Publication number
- IT986180B IT986180B IT7350898A IT5089873A IT986180B IT 986180 B IT986180 B IT 986180B IT 7350898 A IT7350898 A IT 7350898A IT 5089873 A IT5089873 A IT 5089873A IT 986180 B IT986180 B IT 986180B
- Authority
- IT
- Italy
- Prior art keywords
- manufacturing
- magnetic heads
- heads
- magnetic
- Prior art date
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
- C04B35/01—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics
- C04B35/26—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics based on ferrites
-
- 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
-
- 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
- Y10T29/49034—Treating to affect magnetic properties
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Manufacturing & Machinery (AREA)
- Ceramic Engineering (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Soft Magnetic Materials (AREA)
- Magnetic Heads (AREA)
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP6217972A JPS4922921A (it) | 1972-06-20 | 1972-06-20 | |
JP1697373A JPS5647604B2 (it) | 1973-02-09 | 1973-02-09 | |
JP1697573A JPS5647605B2 (it) | 1973-02-09 | 1973-02-09 | |
JP1698073A JPS5648892B2 (it) | 1973-02-09 | 1973-02-09 |
Publications (1)
Publication Number | Publication Date |
---|---|
IT986180B true IT986180B (it) | 1975-01-20 |
Family
ID=27456686
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
IT7350898A IT986180B (it) | 1972-06-20 | 1973-06-19 | Testine magnetiche e metodo per fabbricarle |
Country Status (7)
Country | Link |
---|---|
US (1) | US3931642A (it) |
CA (1) | CA1003957A (it) |
DE (1) | DE2330290C3 (it) |
FR (1) | FR2189805B1 (it) |
GB (1) | GB1436228A (it) |
IT (1) | IT986180B (it) |
NL (1) | NL175473C (it) |
Families Citing this family (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5496012A (en) * | 1978-01-13 | 1979-07-30 | Victor Co Of Japan Ltd | Magnetic head |
JPS55125519A (en) * | 1979-03-23 | 1980-09-27 | Hitachi Ltd | Magnetic head |
JPS56163518A (en) * | 1980-05-16 | 1981-12-16 | Hitachi Ltd | Magnetic head |
JPS5891517A (ja) * | 1981-11-27 | 1983-05-31 | Hitachi Ltd | 磁気記録再生装置 |
NL8200481A (nl) * | 1982-02-09 | 1983-09-01 | Philips Nv | Magneetkop. |
GB2139404B (en) * | 1983-04-19 | 1986-10-08 | Hitachi Metals Ltd | Magnetic head core and manufacturing method |
JPS60224109A (ja) * | 1984-04-20 | 1985-11-08 | Hitachi Ltd | 複合型磁気ヘツドを用いた磁気記録再生装置 |
JPH09507960A (ja) * | 1994-11-09 | 1997-08-12 | フィリップス エレクトロニクス ネムローゼ フェンノートシャップ | 焼結MgZnフェライト材料製の偏向リング、斯種のリングを具えている陰極線管及び斯様な材料製の成形品 |
US5966065A (en) * | 1996-06-27 | 1999-10-12 | Tdk Corporation | Core for inductance elements and its production method |
US7549215B2 (en) * | 2007-03-28 | 2009-06-23 | Hitachi Global Storage Technologies Netherlands B.V. | Method for manufacturing a magnetic head for perpendicular magnetic data recording |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2992474A (en) * | 1958-11-17 | 1961-07-18 | Adams Edmond | Magnetic tape recorder heads |
US3663767A (en) * | 1968-11-16 | 1972-05-16 | Tokyo Shibaura Electric Co | Magnetic head |
US3676610A (en) * | 1970-04-03 | 1972-07-11 | Rca Corp | Magnetic head with modified grain boundaries |
-
1973
- 1973-06-04 NL NLAANVRAGE7307759,A patent/NL175473C/xx active Search and Examination
- 1973-06-07 FR FR7320795A patent/FR2189805B1/fr not_active Expired
- 1973-06-12 DE DE2330290A patent/DE2330290C3/de not_active Expired
- 1973-06-15 US US05/370,451 patent/US3931642A/en not_active Expired - Lifetime
- 1973-06-19 CA CA174,462A patent/CA1003957A/en not_active Expired
- 1973-06-19 IT IT7350898A patent/IT986180B/it active
- 1973-06-20 GB GB2934273A patent/GB1436228A/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
NL175473C (nl) | 1984-11-01 |
FR2189805B1 (it) | 1976-09-17 |
GB1436228A (en) | 1976-05-19 |
DE2330290A1 (de) | 1974-01-10 |
FR2189805A1 (it) | 1974-01-25 |
DE2330290B2 (de) | 1977-10-06 |
US3931642A (en) | 1976-01-06 |
CA1003957A (en) | 1977-01-18 |
DE2330290C3 (de) | 1978-05-24 |
NL7307759A (it) | 1973-12-27 |
NL175473B (nl) | 1984-06-01 |
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