JPS5139102B1 - - Google Patents
Info
- Publication number
- JPS5139102B1 JPS5139102B1 JP46092698A JP9269871A JPS5139102B1 JP S5139102 B1 JPS5139102 B1 JP S5139102B1 JP 46092698 A JP46092698 A JP 46092698A JP 9269871 A JP9269871 A JP 9269871A JP S5139102 B1 JPS5139102 B1 JP S5139102B1
- 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.)
- Pending
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F41/00—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties
- H01F41/02—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils, or magnets
-
- 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
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- 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
- Y10T29/49036—Fabricating head structure or component thereof including measuring or testing
- Y10T29/49039—Fabricating head structure or component thereof including measuring or testing with dual gap materials
-
- 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)
- Power Engineering (AREA)
- Magnetic Heads (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US9093470A | 1970-11-19 | 1970-11-19 |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5139102B1 true JPS5139102B1 (ja) | 1976-10-26 |
Family
ID=22225015
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP46092698A Pending JPS5139102B1 (ja) | 1970-11-19 | 1971-11-18 |
Country Status (5)
Country | Link |
---|---|
US (1) | US3706132A (ja) |
JP (1) | JPS5139102B1 (ja) |
CA (1) | CA939807A (ja) |
DE (1) | DE2157338A1 (ja) |
GB (1) | GB1366925A (ja) |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3750274A (en) * | 1971-05-28 | 1973-08-07 | Texas Instruments Inc | Method of making glass bonded recording heads |
US3824685A (en) * | 1972-02-14 | 1974-07-23 | Bell & Howell Co | Method of making a ferrite head |
US3851375A (en) * | 1972-05-08 | 1974-12-03 | Philips Corp | Method of bonding together mouldings of sintered oxidic ferromagnetic material |
US4697217A (en) * | 1982-10-13 | 1987-09-29 | Sanyo Electric Co., Ltd. | Magnetic head having a main core of sheet amorphous magnetic material |
AU6032494A (en) * | 1993-02-12 | 1994-08-29 | Data Card Corporation | Magnetic stripe read/write head |
Family Cites Families (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3094772A (en) * | 1956-07-26 | 1963-06-25 | Philips Corp | Method of producing magnetic heads with accurately predetermined gap heights |
US3104455A (en) * | 1959-08-10 | 1963-09-24 | Clevite Corp | Method of manufacturing magnetic transducer head |
US3187411A (en) * | 1960-09-27 | 1965-06-08 | Philips Corp | Method of manufacturing pole-piece units for magnetic heads |
US3229355A (en) * | 1962-01-02 | 1966-01-18 | Ibm | Method of making a magnetic transducer head |
NL278197A (ja) * | 1962-05-08 | |||
US3369292A (en) * | 1962-11-23 | 1968-02-20 | North American Phillips Compan | Method of forming glass bonded heads |
US3479738A (en) * | 1967-05-23 | 1969-11-25 | Rca Corp | Magnetic heads |
US3605259A (en) * | 1968-03-06 | 1971-09-20 | Matsushita Electric Ind Co Ltd | Method of manufacturing a pair of pole pieces for a magnetic head |
US3579214A (en) * | 1968-06-17 | 1971-05-18 | Ibm | Multichannel magnetic head with common leg |
-
1970
- 1970-11-19 US US90934A patent/US3706132A/en not_active Expired - Lifetime
-
1971
- 1971-10-21 CA CA125,814A patent/CA939807A/en not_active Expired
- 1971-11-11 GB GB5234671A patent/GB1366925A/en not_active Expired
- 1971-11-18 DE DE19712157338 patent/DE2157338A1/de active Pending
- 1971-11-18 JP JP46092698A patent/JPS5139102B1/ja active Pending
Also Published As
Publication number | Publication date |
---|---|
GB1366925A (en) | 1974-09-18 |
DE2157338A1 (de) | 1972-05-31 |
US3706132A (en) | 1972-12-19 |
CA939807A (en) | 1974-01-08 |