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FR1281864A - Matières ferromagnétiques utilisables notamment dans les éléments d'enregistrement - Google Patents

Matières ferromagnétiques utilisables notamment dans les éléments d'enregistrement

Info

Publication number
FR1281864A
FR1281864A FR809066A FR809066A FR1281864A FR 1281864 A FR1281864 A FR 1281864A FR 809066 A FR809066 A FR 809066A FR 809066 A FR809066 A FR 809066A FR 1281864 A FR1281864 A FR 1281864A
Authority
FR
France
Prior art keywords
recording elements
ferromagnetic materials
materials usable
usable
ferromagnetic
Prior art date
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
Application number
FR809066A
Other languages
English (en)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
International Business Machines Corp
Original Assignee
International Business Machines Corp
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by International Business Machines Corp filed Critical International Business Machines Corp
Application granted granted Critical
Publication of FR1281864A publication Critical patent/FR1281864A/fr
Expired legal-status Critical Current

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
    • C04B35/2608—Compositions containing one or more ferrites of the group comprising manganese, zinc, nickel, copper or cobalt and one or more ferrites of the group comprising rare earth metals, alkali metals, alkaline earth metals or lead

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Ceramic Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)
  • Structural Engineering (AREA)
  • Organic Chemistry (AREA)
  • Hard Magnetic Materials (AREA)
FR809066A 1958-11-06 1959-11-02 Matières ferromagnétiques utilisables notamment dans les éléments d'enregistrement Expired FR1281864A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US772174A US2982607A (en) 1958-11-06 1958-11-06 Lanthanum manganese hexaferrites

Publications (1)

Publication Number Publication Date
FR1281864A true FR1281864A (fr) 1962-01-19

Family

ID=25094187

Family Applications (1)

Application Number Title Priority Date Filing Date
FR809066A Expired FR1281864A (fr) 1958-11-06 1959-11-02 Matières ferromagnétiques utilisables notamment dans les éléments d'enregistrement

Country Status (2)

Country Link
US (1) US2982607A (fr)
FR (1) FR1281864A (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4764445A (en) * 1987-06-15 1988-08-16 Eastman Kodak Company Electrographic magnetic carrier particles

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2677663A (en) * 1949-02-05 1954-05-04 Hartford Nat Bank & Trust Co Manganite composition

Also Published As

Publication number Publication date
US2982607A (en) 1961-05-02

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