JPS5121769B2 - - Google Patents
Info
- Publication number
- JPS5121769B2 JPS5121769B2 JP48051738A JP5173873A JPS5121769B2 JP S5121769 B2 JPS5121769 B2 JP S5121769B2 JP 48051738 A JP48051738 A JP 48051738A JP 5173873 A JP5173873 A JP 5173873A JP S5121769 B2 JPS5121769 B2 JP S5121769B2
- 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.)
- Expired
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R11/00—Transducers of moving-armature or moving-core type
- H04R11/08—Gramophone pick-ups using a stylus; Recorders using a stylus
- H04R11/12—Gramophone pick-ups using a stylus; Recorders using a stylus signals being recorded or played back by vibration of a stylus in two orthogonal directions simultaneously
-
- 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
-
- 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
- Y10T29/49799—Providing transitory integral holding or handling portion
Landscapes
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Engineering & Computer Science (AREA)
- Acoustics & Sound (AREA)
- Signal Processing (AREA)
- Manufacture Of Motors, Generators (AREA)
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP48051738A JPS5121769B2 (en) | 1973-05-11 | 1973-05-11 | |
| US468575A US3899827A (en) | 1973-05-11 | 1974-05-09 | Method of manufacturing pole piece assembly for electromagnetic type pickup |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP48051738A JPS5121769B2 (en) | 1973-05-11 | 1973-05-11 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS503303A JPS503303A (en) | 1975-01-14 |
| JPS5121769B2 true JPS5121769B2 (en) | 1976-07-05 |
Family
ID=12895228
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP48051738A Expired JPS5121769B2 (en) | 1973-05-11 | 1973-05-11 |
Country Status (2)
| Country | Link |
|---|---|
| US (1) | US3899827A (en) |
| JP (1) | JPS5121769B2 (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4161631A (en) * | 1974-12-13 | 1979-07-17 | Nippon Columbia Kabushikikaisha | Pickup cartridge |
| JPS5824556Y2 (en) * | 1977-09-16 | 1983-05-26 | パイオニア株式会社 | Pickup Cartridge |
| JPS5661895A (en) * | 1979-10-25 | 1981-05-27 | Matsushita Electric Ind Co Ltd | Electromagnetic type pickup cartridge |
| US8258217B2 (en) * | 2006-09-07 | 2012-09-04 | BASF SE Ludwigshafen | Perfluoroalkyl substituted phenol derivatives as surface modifiers |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1631461A (en) * | 1924-12-01 | 1927-06-07 | Gen Phonograph Mfg Co | Commutator and method of making same |
| US3163720A (en) * | 1959-02-05 | 1964-12-29 | Webcor Inc | Magnetic head |
| US3092692A (en) * | 1959-07-13 | 1963-06-04 | Zenith Radio Corp | Magnetic transcriber |
| US3229355A (en) * | 1962-01-02 | 1966-01-18 | Ibm | Method of making a magnetic transducer head |
| DE1447117B2 (en) * | 1963-12-23 | 1970-11-05 | Electroacustic Gmbh, 2300 Kiel | Electromagnetic pick-up with exchangeable pick-up element |
| US3828426A (en) * | 1972-12-26 | 1974-08-13 | Phelon Co Inc | Method of fabricating magnetomotive devices |
-
1973
- 1973-05-11 JP JP48051738A patent/JPS5121769B2/ja not_active Expired
-
1974
- 1974-05-09 US US468575A patent/US3899827A/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPS503303A (en) | 1975-01-14 |
| US3899827A (en) | 1975-08-19 |