NL263324A - - Google Patents
Info
- Publication number
- NL263324A NL263324A NL263324DA NL263324A NL 263324 A NL263324 A NL 263324A NL 263324D A NL263324D A NL 263324DA NL 263324 A NL263324 A NL 263324A
- Authority
- NL
- Netherlands
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
- G11B5/193—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
- G11B5/133—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
-
- 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
-
- 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
- Y10T29/49055—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 (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| NL263324 | 1961-04-07 | ||
| US17765462A | 1962-03-05 | 1962-03-05 | |
| US533134A US3354540A (en) | 1961-04-07 | 1966-03-07 | Method of manufacturing reliable magnetic heads having accurately predetermined dimensions |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| NL263324A true NL263324A (US07534539-20090519-C00280.png) |
Family
ID=27351038
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NL263324D NL263324A (US07534539-20090519-C00280.png) | 1961-04-07 |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US3502821A (US07534539-20090519-C00280.png) |
| CH (1) | CH402052A (US07534539-20090519-C00280.png) |
| GB (1) | GB1000710A (US07534539-20090519-C00280.png) |
| NL (1) | NL263324A (US07534539-20090519-C00280.png) |
Families Citing this family (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3579214A (en) * | 1968-06-17 | 1971-05-18 | Ibm | Multichannel magnetic head with common leg |
| GB1276692A (en) * | 1968-06-26 | 1972-06-07 | Tokyo Shibaura Electric Co | A magnetic head and a method for manufacturing the same |
| US3653011A (en) * | 1970-04-15 | 1972-03-28 | Ncr Co | Three pole tip read after write transducer |
| US3813693A (en) * | 1970-08-28 | 1974-05-28 | Ampex | Magnetic head with protective pockets of glass adjacent the corners of the gap |
| US3789505A (en) * | 1972-02-11 | 1974-02-05 | R Huntt | Method of making a multi-core magnetic head with a non-magnetic holder |
| US3845550A (en) * | 1972-06-23 | 1974-11-05 | Ampex | Method of manufacturing a magnetic head |
| US3982318A (en) * | 1976-01-29 | 1976-09-28 | Control Data Corporation | Magnetic transducer head core manufacturing method |
| US4217613A (en) * | 1978-11-06 | 1980-08-12 | Rca Corporation | Magnetic transducer head core |
| JPS60229210A (ja) * | 1983-12-30 | 1985-11-14 | Sony Corp | 磁気ヘツド |
| CA1236212A (en) * | 1983-12-30 | 1988-05-03 | Heikichi Sato | Magnetic transducer head with slanted thin film |
| JPH0654527B2 (ja) * | 1984-11-26 | 1994-07-20 | ソニー株式会社 | 磁気ヘツド |
| JPH02172006A (ja) * | 1988-12-23 | 1990-07-03 | Canon Electron Inc | 磁気ヘッド |
| JPH04301205A (ja) * | 1991-03-28 | 1992-10-23 | Ngk Insulators Ltd | 磁気ヘッド用コアチップ及びそれを用いた磁気ヘッド用コアスライダの製造法 |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| IT514346A (US07534539-20090519-C00280.png) * | 1953-03-20 | |||
| US3094772A (en) * | 1956-07-26 | 1963-06-25 | Philips Corp | Method of producing magnetic heads with accurately predetermined gap heights |
| GB900652A (en) * | 1957-11-06 | 1962-07-11 | Emi Ltd | Improvements in or relating to magnetic transducing heads |
| US3249700A (en) * | 1960-09-27 | 1966-05-03 | Philips Corp | Magnetic heads with means for preventing side erosion |
-
0
- NL NL263324D patent/NL263324A/xx unknown
-
1962
- 1962-04-04 GB GB12949/62A patent/GB1000710A/en not_active Expired
- 1962-04-04 CH CH410362A patent/CH402052A/de unknown
-
1965
- 1965-07-09 US US470935A patent/US3502821A/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| CH402052A (de) | 1965-11-15 |
| US3502821A (en) | 1970-03-24 |
| GB1000710A (en) | 1965-08-11 |
