JPS5139100B1 - - Google Patents
Info
- Publication number
- JPS5139100B1 JPS5139100B1 JP46043382A JP4338271A JPS5139100B1 JP S5139100 B1 JPS5139100 B1 JP S5139100B1 JP 46043382 A JP46043382 A JP 46043382A JP 4338271 A JP4338271 A JP 4338271A JP S5139100 B1 JPS5139100 B1 JP S5139100B1
- 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
-
- 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
- G11B5/23—Gap features
- G11B5/235—Selection of material for gap filler
-
- 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 |
|---|---|---|---|
| US5192870A | 1970-07-02 | 1970-07-02 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5139100B1 true JPS5139100B1 (ja) | 1976-10-26 |
Family
ID=21974268
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP46043382A Pending JPS5139100B1 (ja) | 1970-07-02 | 1971-06-18 |
Country Status (7)
| Country | Link |
|---|---|
| US (1) | US3639701A (ja) |
| JP (1) | JPS5139100B1 (ja) |
| CA (1) | CA936958A (ja) |
| DE (1) | DE2125816A1 (ja) |
| FR (1) | FR2097960A5 (ja) |
| GB (1) | GB1342035A (ja) |
| SE (1) | SE366414B (ja) |
Families Citing this family (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3824685A (en) * | 1972-02-14 | 1974-07-23 | Bell & Howell Co | Method of making a ferrite head |
| JPS5410852B2 (ja) * | 1973-08-07 | 1979-05-10 | ||
| JPS5427132B2 (ja) * | 1974-02-21 | 1979-09-07 | ||
| FR2284159A1 (fr) * | 1974-09-06 | 1976-04-02 | Thomson Csf | Methode de fabrication de tetes magnetiques de lecture, d'ecriture et d'effacement pour memoires a support defilant, et tete obtenue par ladite methode |
| JPS5827565B2 (ja) * | 1977-09-19 | 1983-06-10 | 松下電器産業株式会社 | 磁気ヘッドおよびその製造方法 |
| US4219853A (en) * | 1978-12-21 | 1980-08-26 | International Business Machines Corporation | Read/write thin film head |
| US4406722A (en) * | 1982-05-03 | 1983-09-27 | International Business Machines Corp. | Diffusion bonding of dissimilar ceramics |
| JPS60187910A (ja) * | 1984-03-06 | 1985-09-25 | Matsushita Electric Ind Co Ltd | 合金磁気ヘツドのギヤツプ形成法 |
| JPS61133007A (ja) * | 1984-12-01 | 1986-06-20 | Victor Co Of Japan Ltd | 磁気ヘツド |
| JPS61233405A (ja) * | 1985-04-08 | 1986-10-17 | Matsushita Electric Ind Co Ltd | 磁気ヘツド |
| US4874922A (en) * | 1988-11-30 | 1989-10-17 | Impris Technology Incorporated | Granule vise for manufacturing a magnetic head core with a glass fillet adjacent the inner edge of the gap |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| NL299035A (ja) * | 1963-10-09 | |||
| US3495045A (en) * | 1964-08-18 | 1970-02-10 | Peter F Varadi | Magnetic transducer head having a ceramic gap spacer |
| NL146311B (nl) * | 1965-04-22 | 1975-06-16 | Philips Nv | Werkwijze voor het vervaardigen van een dubbelspleets-magneetkop en dubbelspleets-magneetkop volgens deze werkwijze vervaardigd. |
| US3478340A (en) * | 1966-03-11 | 1969-11-11 | Ibm | Unitized magnetic assembly |
| US3479738A (en) * | 1967-05-23 | 1969-11-25 | Rca Corp | Magnetic heads |
-
1970
- 1970-07-02 US US51928A patent/US3639701A/en not_active Expired - Lifetime
-
1971
- 1971-05-25 DE DE19712125816 patent/DE2125816A1/de not_active Withdrawn
- 1971-05-28 GB GB1781271A patent/GB1342035A/en not_active Expired
- 1971-06-15 FR FR7122136A patent/FR2097960A5/fr not_active Expired
- 1971-06-18 JP JP46043382A patent/JPS5139100B1/ja active Pending
- 1971-06-25 CA CA116621A patent/CA936958A/en not_active Expired
- 1971-07-02 SE SE08580/71A patent/SE366414B/xx unknown
Also Published As
| Publication number | Publication date |
|---|---|
| CA936958A (en) | 1973-11-13 |
| US3639701A (en) | 1972-02-01 |
| FR2097960A5 (ja) | 1972-03-03 |
| DE2125816A1 (de) | 1972-01-05 |
| SE366414B (ja) | 1974-04-22 |
| GB1342035A (en) | 1973-12-25 |