FR2165011A5 - - Google Patents
Info
- Publication number
- FR2165011A5 FR2165011A5 FR7144897A FR7144897A FR2165011A5 FR 2165011 A5 FR2165011 A5 FR 2165011A5 FR 7144897 A FR7144897 A FR 7144897A FR 7144897 A FR7144897 A FR 7144897A FR 2165011 A5 FR2165011 A5 FR 2165011A5
- Authority
- FR
- France
- 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
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
- C04B35/01—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics
- C04B35/26—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics based on ferrites
- C04B35/265—Compositions containing one or more ferrites of the group comprising manganese or zinc and one or more ferrites of the group comprising nickel, copper or cobalt
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Ceramic Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Soft Magnetic Materials (AREA)
- Magnetic Ceramics (AREA)
- Compounds Of Iron (AREA)
- Magnetic Heads (AREA)
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR7144897A FR2165011A5 (it) | 1971-12-14 | 1971-12-14 | |
JP47123060A JPS5742585B2 (it) | 1971-12-14 | 1972-12-09 | |
GB5714672A GB1414771A (en) | 1971-12-14 | 1972-12-11 | Ferrimagnetic material for recording read out and erase heads utilised in magnetic layer devices and manufacturing process of this material |
DE19722261183 DE2261183C2 (de) | 1971-12-14 | 1972-12-14 | Verfahren zur Herstellung eines Formteils aus einem polykristallinen, ferrimagnetischen Material |
US05/592,657 US4059664A (en) | 1971-12-14 | 1975-07-02 | Method of manufacturing ferrimagnetic material for recording, read out and erase heads utilized in magnetic layer devices |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR7144897A FR2165011A5 (it) | 1971-12-14 | 1971-12-14 |
Publications (1)
Publication Number | Publication Date |
---|---|
FR2165011A5 true FR2165011A5 (it) | 1973-08-03 |
Family
ID=9087451
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR7144897A Expired FR2165011A5 (it) | 1971-12-14 | 1971-12-14 |
Country Status (4)
Country | Link |
---|---|
JP (1) | JPS5742585B2 (it) |
DE (1) | DE2261183C2 (it) |
FR (1) | FR2165011A5 (it) |
GB (1) | GB1414771A (it) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS58144839A (ja) * | 1982-02-13 | 1983-08-29 | Tdk Corp | 磁性キヤリヤ粒子 |
US4541973A (en) * | 1983-04-21 | 1985-09-17 | Celanese Corporation | Production of ferrimagnetic spinel fibers |
US4473542A (en) * | 1983-05-23 | 1984-09-25 | Celanese Corporation | Production of microcrystalline ferrimagnetic spinels |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR1367157A (fr) * | 1962-08-16 | 1964-07-17 | Philips Nv | Ferrites polycristallins et procédés de fabrication |
FR1390192A (fr) * | 1962-07-25 | 1965-02-26 | Philips Nv | Corps de ferrite au nickel polycristallin, son procédé de fabrication et tête de magnétophone constituée par ce tel corps |
US3557266A (en) * | 1967-02-09 | 1971-01-19 | Matsushita Electric Ind Co Ltd | Method of eliminating the porosity and controlling the grain size of a ferrite body by a two stage hot pressing treatment |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5133273A (en) * | 1974-09-12 | 1976-03-22 | Takeyoshi Myahara | Shindobutsutai no shijisochi |
DE2534257C3 (de) * | 1975-07-31 | 1978-07-06 | Bayer Ag, 5090 Leverkusen | Verfahren zur Bestimmung des anorganischen Kohlenstoffgehaltes von wässrigen Flüssigkeiten |
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1971
- 1971-12-14 FR FR7144897A patent/FR2165011A5/fr not_active Expired
-
1972
- 1972-12-09 JP JP47123060A patent/JPS5742585B2/ja not_active Expired
- 1972-12-11 GB GB5714672A patent/GB1414771A/en not_active Expired
- 1972-12-14 DE DE19722261183 patent/DE2261183C2/de not_active Expired
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR1390192A (fr) * | 1962-07-25 | 1965-02-26 | Philips Nv | Corps de ferrite au nickel polycristallin, son procédé de fabrication et tête de magnétophone constituée par ce tel corps |
FR1367157A (fr) * | 1962-08-16 | 1964-07-17 | Philips Nv | Ferrites polycristallins et procédés de fabrication |
US3557266A (en) * | 1967-02-09 | 1971-01-19 | Matsushita Electric Ind Co Ltd | Method of eliminating the porosity and controlling the grain size of a ferrite body by a two stage hot pressing treatment |
Non-Patent Citations (2)
Title |
---|
IEEE TRANSACTIONS ON COMMUNICATION AND ELECTRONICS, vol.83, no.11, novembre 1964 * |
PHILIPS RESEARCH REPORTS, vol.19, no.1, 1964 * |
Also Published As
Publication number | Publication date |
---|---|
JPS5742585B2 (it) | 1982-09-09 |
JPS4866609A (it) | 1973-09-12 |
DE2261183C2 (de) | 1984-03-15 |
DE2261183A1 (de) | 1973-06-20 |
GB1414771A (en) | 1975-11-19 |
Similar Documents
Legal Events
Date | Code | Title | Description |
---|---|---|---|
CL | Concession to grant licences | ||
ST | Notification of lapse |