NO116342B - - Google Patents
Info
- Publication number
- NO116342B NO116342B NO161202A NO16120266A NO116342B NO 116342 B NO116342 B NO 116342B NO 161202 A NO161202 A NO 161202A NO 16120266 A NO16120266 A NO 16120266A NO 116342 B NO116342 B NO 116342B
- Authority
- NO
- Norway
- Prior art keywords
- gap
- recess
- enamel
- glass
- sintered
- Prior art date
Links
- 239000011521 glass Substances 0.000 claims description 28
- 210000003298 dental enamel Anatomy 0.000 claims description 27
- 239000000463 material Substances 0.000 claims description 16
- 239000003302 ferromagnetic material Substances 0.000 claims description 15
- 230000005291 magnetic effect Effects 0.000 claims description 12
- 125000006850 spacer group Chemical group 0.000 claims description 12
- 238000000034 method Methods 0.000 claims description 9
- 238000004519 manufacturing process Methods 0.000 claims description 8
- 230000005294 ferromagnetic effect Effects 0.000 claims description 4
- 239000000155 melt Substances 0.000 claims description 4
- 238000001816 cooling Methods 0.000 claims description 3
- 239000011888 foil Substances 0.000 claims description 3
- 238000000926 separation method Methods 0.000 claims description 3
- 238000005304 joining Methods 0.000 claims description 2
- 229910000679 solder Inorganic materials 0.000 description 10
- 229920005989 resin Polymers 0.000 description 7
- 239000011347 resin Substances 0.000 description 7
- 238000010438 heat treatment Methods 0.000 description 5
- 238000002844 melting Methods 0.000 description 5
- 230000008018 melting Effects 0.000 description 5
- 239000002184 metal Substances 0.000 description 4
- 238000004804 winding Methods 0.000 description 3
- 239000003822 epoxy resin Substances 0.000 description 2
- 229920000647 polyepoxide Polymers 0.000 description 2
- 239000013078 crystal Substances 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 239000000696 magnetic material Substances 0.000 description 1
- 239000000843 powder Substances 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
- G11B5/187—Structure or manufacture of the surface of the head in physical contact with, or immediately adjacent to the recording medium; Pole pieces; Gap features
-
- 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
- G11B5/29—Structure or manufacture of unitary devices formed of plural heads for more than one 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
- Y10T29/49048—Machining magnetic material [e.g., grinding, etching, polishing]
-
- 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
- Y10T29/49053—Multitrack heads having integral holding means
-
- 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
- Y10T29/49057—Using glass bonding material
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Magnetic Heads (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| NL656500402A NL149020B (nl) | 1965-01-14 | 1965-01-14 | Werkwijze voor het vervaardigen van een poolschoeneenheid voor een magneetkop, alsmede poolschoeneenheid, vervaardigd volgens deze werkwijze. |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| NO116342B true NO116342B (US20100292554A1-20101118-C00004.png) | 1969-03-10 |
Family
ID=19792103
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NO161202A NO116342B (US20100292554A1-20101118-C00004.png) | 1965-01-14 | 1966-01-11 |
Country Status (11)
Families Citing this family (26)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3543396A (en) * | 1967-01-17 | 1970-12-01 | Zbigniew Illg | Method of multi-track,two-gap,ferrite magnetic heads designed especially for digital recording |
| US3544982A (en) * | 1968-05-01 | 1970-12-01 | Rca Corp | Multi-head magnetic transducer |
| US3648361A (en) * | 1968-06-26 | 1972-03-14 | Tokyo Shibaura Electric Co | Method of manufacturing a magnetic head |
| GB1276692A (en) * | 1968-06-26 | 1972-06-07 | Tokyo Shibaura Electric Co | A magnetic head and a method for manufacturing the same |
| NL157442B (nl) * | 1968-08-22 | 1978-07-17 | Philips Nv | Werkwijze voor het vervaardigen van een poolschoeneenheid voor een magneetkop, alsmede poolschoeneenheid vervaardigd volgens deze werkwijze. |
| JPS4826527B1 (US20100292554A1-20101118-C00004.png) * | 1969-02-13 | 1973-08-11 | ||
| NL162495C (nl) * | 1969-03-10 | Matsushita Electric Ind Co Ltd | Meerkanaals magneetkop. | |
| JPS4936252B1 (US20100292554A1-20101118-C00004.png) * | 1969-09-01 | 1974-09-28 | ||
| US3842494A (en) * | 1969-03-11 | 1974-10-22 | Matsushita Electric Ind Co Ltd | Multichannel magnetic ferrite head and a method for making the same |
| JPS4936253B1 (US20100292554A1-20101118-C00004.png) * | 1969-09-01 | 1974-09-28 | ||
| US3737991A (en) * | 1970-08-18 | 1973-06-12 | Matsushita Electric Ind Co Ltd | Method of making a multi-channel magnetic head |
| US3813693A (en) * | 1970-08-28 | 1974-05-28 | Ampex | Magnetic head with protective pockets of glass adjacent the corners of the gap |
| US3918151A (en) * | 1971-03-17 | 1975-11-11 | Philips Corp | Method of manufacturing a multiple magnetic head |
| NL7103549A (US20100292554A1-20101118-C00004.png) * | 1971-03-17 | 1972-09-19 | ||
| US3750274A (en) * | 1971-05-28 | 1973-08-07 | Texas Instruments Inc | Method of making glass bonded recording heads |
| JPS5325490B2 (US20100292554A1-20101118-C00004.png) * | 1973-04-30 | 1978-07-27 | ||
| US3816908A (en) * | 1973-05-09 | 1974-06-18 | Matsushita Electric Ind Co Ltd | Method of making a multi-channel magnetic head |
| JPS5418130B2 (US20100292554A1-20101118-C00004.png) * | 1974-03-14 | 1979-07-05 | ||
| US4372036A (en) * | 1974-10-29 | 1983-02-08 | Spin Physics, Inc. | Method of manufacturing a single-track video ferrite record/reproduce head |
| JPS5128022B1 (US20100292554A1-20101118-C00004.png) * | 1974-12-06 | 1976-08-16 | ||
| US4370802A (en) * | 1980-08-25 | 1983-02-01 | Applied Magnetics Corporation | Method of making a thin film magnetic head assembly with multiconductive connecting elements |
| US4370801A (en) * | 1980-08-25 | 1983-02-01 | Applied Magnetics Corporation | Method of making a thin film magnetic head assembly with multiconductive connecting elements |
| US4975791A (en) * | 1988-03-22 | 1990-12-04 | Carlisle Memory Products Group Incorporated | Recording system having head transducers with controlled skew |
| US4979051A (en) * | 1988-03-22 | 1990-12-18 | Eggebeen James A | Bimodal multi-track magnetic head |
| NO922249L (no) * | 1991-06-07 | 1992-12-08 | Minnesota Mining & Mfg | Flerspors servo-opptakshode, resulterende medium som inneholder forhaandsregistrert servospor samt servostyrt hodeposisjoneringssystem |
| US5229895A (en) * | 1991-06-07 | 1993-07-20 | Minnesota Mining And Manufacturing Company | Multi-track servo recording head assembly |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3145452A (en) * | 1958-03-24 | 1964-08-25 | Iit Res Inst | Method of making a magnetic head |
| NL112519C (US20100292554A1-20101118-C00004.png) * | 1959-09-05 | |||
| US3249700A (en) * | 1960-09-27 | 1966-05-03 | Philips Corp | Magnetic heads with means for preventing side erosion |
| US3187411A (en) * | 1960-09-27 | 1965-06-08 | Philips Corp | Method of manufacturing pole-piece units for magnetic heads |
| US3302268A (en) * | 1961-03-22 | 1967-02-07 | Philips Corp | Method of manufacturing magnetic heads using a jig for accurately determining gap height |
| US3249987A (en) * | 1961-03-30 | 1966-05-10 | Philips Corp | Method of manufacturing magnetic heads |
| US3354540A (en) * | 1961-04-07 | 1967-11-28 | Philips Corp | Method of manufacturing reliable magnetic heads having accurately predetermined dimensions |
| US3224073A (en) * | 1962-05-09 | 1965-12-21 | Philips Corp | Method of making multi-track magnetic heads |
| US3353261A (en) * | 1964-12-30 | 1967-11-21 | Ibm | Method of making a multitrack magnetic transducer head |
-
1965
- 1965-01-14 NL NL656500402A patent/NL149020B/xx unknown
-
1966
- 1966-01-11 NO NO161202A patent/NO116342B/no unknown
- 1966-01-11 DK DK13366AA patent/DK114354B/da unknown
- 1966-01-11 AT AT21366A patent/AT261251B/de active
- 1966-01-11 GB GB1228/66A patent/GB1086233A/en not_active Expired
- 1966-01-11 DE DE1966N0027872 patent/DE1499784B2/de active Granted
- 1966-01-12 ES ES0321648A patent/ES321648A1/es not_active Expired
- 1966-01-12 CH CH37766A patent/CH445144A/de unknown
- 1966-01-13 BE BE675079D patent/BE675079A/xx unknown
- 1966-01-13 FR FR45751A patent/FR1473130A/fr not_active Expired
- 1966-01-14 US US520789A patent/US3402463A/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| BE675079A (US20100292554A1-20101118-C00004.png) | 1966-07-13 |
| NL6500402A (US20100292554A1-20101118-C00004.png) | 1966-07-15 |
| FR1473130A (fr) | 1967-03-17 |
| NL149020B (nl) | 1976-03-15 |
| GB1086233A (en) | 1967-10-04 |
| CH445144A (de) | 1967-10-15 |
| DK114354B (da) | 1969-06-23 |
| DE1499784A1 (de) | 1969-10-30 |
| DE1499784B2 (de) | 1977-04-28 |
| ES321648A1 (es) | 1966-12-16 |
| US3402463A (en) | 1968-09-24 |
| AT261251B (de) | 1968-04-10 |
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