DE1447138B2 - Verfahren zur herstellung eines doppelspaltmagnetkopfes fuer mehrspurbetrieb - Google Patents
Verfahren zur herstellung eines doppelspaltmagnetkopfes fuer mehrspurbetriebInfo
- Publication number
- DE1447138B2 DE1447138B2 DE1964N0025648 DEN0025648A DE1447138B2 DE 1447138 B2 DE1447138 B2 DE 1447138B2 DE 1964N0025648 DE1964N0025648 DE 1964N0025648 DE N0025648 A DEN0025648 A DE N0025648A DE 1447138 B2 DE1447138 B2 DE 1447138B2
- Authority
- DE
- Germany
- Prior art keywords
- plates
- enamel
- core legs
- double
- 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.)
- Granted
Links
- 230000005291 magnetic effect Effects 0.000 title claims description 20
- 238000004519 manufacturing process Methods 0.000 title claims description 15
- 239000000463 material Substances 0.000 claims description 26
- 210000003298 dental enamel Anatomy 0.000 claims description 20
- 239000000725 suspension Substances 0.000 claims description 10
- 239000003302 ferromagnetic material Substances 0.000 claims description 9
- 239000000843 powder Substances 0.000 claims description 9
- 239000004020 conductor Substances 0.000 claims description 2
- 239000007787 solid Substances 0.000 claims description 2
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 description 12
- 229910052709 silver Inorganic materials 0.000 description 12
- 239000004332 silver Substances 0.000 description 11
- 238000002844 melting Methods 0.000 description 6
- 230000008018 melting Effects 0.000 description 6
- 238000000034 method Methods 0.000 description 4
- 239000000203 mixture Substances 0.000 description 4
- 239000002131 composite material Substances 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 239000000696 magnetic material Substances 0.000 description 3
- 238000010438 heat treatment Methods 0.000 description 2
- 239000000155 melt Substances 0.000 description 2
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 description 2
- 229910004298 SiO 2 Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 229910003460 diamond Inorganic materials 0.000 description 1
- 239000010432 diamond Substances 0.000 description 1
- 239000003822 epoxy resin Substances 0.000 description 1
- 230000005294 ferromagnetic effect Effects 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 239000010931 gold Substances 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 229910001092 metal group alloy Inorganic materials 0.000 description 1
- 230000009972 noncorrosive effect Effects 0.000 description 1
- 229910052697 platinum Inorganic materials 0.000 description 1
- 229920000647 polyepoxide Polymers 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 238000009736 wetting Methods 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
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
- G11B5/29—Structure or manufacture of unitary devices formed of plural heads for more than one track
-
- 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
- G11B5/265—Structure or manufacture of a head with more than one gap for erasing, recording or reproducing on the same track
-
- 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
- Y10T29/49055—Fabricating head structure or component thereof with bond/laminating preformed parts, at least two magnetic
-
- 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
- Y10T29/4906—Providing winding
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Magnetic Heads (AREA)
- Glass Compositions (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| NL63299035A NL148425B (nl) | 1963-10-09 | 1963-10-09 | Werkwijze voor het vervaardigen van een dubbelspleets-meerkanaalsmagneetkop, alsmede dubbelspleets-meerkanaalsmagneetkop vervaardigd volgens de werkwijze. |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| DE1447138A1 DE1447138A1 (de) | 1969-01-02 |
| DE1447138B2 true DE1447138B2 (de) | 1976-10-28 |
Family
ID=19755125
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE1964N0025648 Granted DE1447138B2 (de) | 1963-10-09 | 1964-10-06 | Verfahren zur herstellung eines doppelspaltmagnetkopfes fuer mehrspurbetrieb |
Country Status (7)
| Country | Link |
|---|---|
| US (1) | US3529349A (https=) |
| AT (1) | AT250046B (https=) |
| BE (1) | BE654099A (https=) |
| DE (1) | DE1447138B2 (https=) |
| GB (1) | GB1024987A (https=) |
| NL (2) | NL148425B (https=) |
| SE (1) | SE315631B (https=) |
Families Citing this family (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1276692A (en) * | 1968-06-26 | 1972-06-07 | Tokyo Shibaura Electric Co | A magnetic head and a method for manufacturing the same |
| US3912483A (en) * | 1968-09-25 | 1975-10-14 | Matsushita Electric Industrial Co Ltd | Method of making a magnetic head |
| US3662122A (en) * | 1969-12-04 | 1972-05-09 | Sperry Rand Corp | Wide-record narrow-read laminated magnetic head |
| US3655923A (en) * | 1970-02-02 | 1972-04-11 | Ceramic Magnetics Inc | Preformed multiple track magnetic head assembly |
| US3639701A (en) * | 1970-07-02 | 1972-02-01 | Ibm | Magnetic recording head having a nonmagnetic ferrite gap |
| US3767497A (en) * | 1971-12-23 | 1973-10-23 | A Sommer | Method of manufacturing a magnetic recorder head |
| US3803875A (en) * | 1973-02-05 | 1974-04-16 | Bendix Corp | Method of forming titanium metal-glass hermetic seals |
| US3909932A (en) * | 1973-10-23 | 1975-10-07 | Ampex | Method of manufacturing a multitrack magnetic head |
| US4001890A (en) * | 1974-08-05 | 1977-01-04 | Honeywell Information Systems, Inc. | Double chip flying head |
| US4124874A (en) * | 1976-09-02 | 1978-11-07 | Bell & Howell Company | Magnetic information transducer assembly |
| GB1570126A (en) * | 1977-03-15 | 1980-06-25 | Data Recording Instr Co | Manufacture of magnetic heads |
| US5013347A (en) * | 1989-06-29 | 1991-05-07 | Microelectronic Packaging Inc. | Glass bonding method |
| JP2004164755A (ja) * | 2002-11-13 | 2004-06-10 | Sony Corp | 磁気ヘッド装置及び磁気記録再生装置 |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3024318A (en) * | 1955-10-04 | 1962-03-06 | Philips Corp | Glass gap spacer for magnetic heads |
| US2922231A (en) * | 1956-04-26 | 1960-01-26 | Ibm | Magnetic transducer |
| US3064333A (en) * | 1959-06-29 | 1962-11-20 | Ibm | Method of making a magnetic transducer |
| US3238603A (en) * | 1961-10-26 | 1966-03-08 | Burroughs Corp | Method of manufacturing a magnetic transducer |
| US3252153A (en) * | 1962-10-01 | 1966-05-17 | Cons Electrodynamics Corp | Cross-feed shield |
-
0
- NL NL299035D patent/NL299035A/xx unknown
-
1963
- 1963-10-09 NL NL63299035A patent/NL148425B/xx unknown
-
1964
- 1964-10-06 GB GB40709/64A patent/GB1024987A/en not_active Expired
- 1964-10-06 SE SE12014/64A patent/SE315631B/xx unknown
- 1964-10-06 DE DE1964N0025648 patent/DE1447138B2/de active Granted
- 1964-10-07 AT AT853164A patent/AT250046B/de active
- 1964-10-07 BE BE654099A patent/BE654099A/xx unknown
-
1968
- 1968-01-30 US US760740*A patent/US3529349A/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| BE654099A (https=) | 1965-04-07 |
| NL148425B (nl) | 1976-01-15 |
| DE1447138A1 (de) | 1969-01-02 |
| US3529349A (en) | 1970-09-22 |
| AT250046B (de) | 1966-10-25 |
| SE315631B (https=) | 1969-10-06 |
| GB1024987A (en) | 1966-04-06 |
| NL299035A (https=) |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C3 | Grant after two publication steps (3rd publication) | ||
| E77 | Valid patent as to the heymanns-index 1977 | ||
| EHJ | Ceased/non-payment of the annual fee |