FR1405622A - Product for a memory kernel usable in wide temperature ranges and method of making such product - Google Patents

Product for a memory kernel usable in wide temperature ranges and method of making such product

Info

Publication number
FR1405622A
FR1405622A FR983941A FR983941A FR1405622A FR 1405622 A FR1405622 A FR 1405622A FR 983941 A FR983941 A FR 983941A FR 983941 A FR983941 A FR 983941A FR 1405622 A FR1405622 A FR 1405622A
Authority
FR
France
Prior art keywords
product
making
temperature ranges
wide temperature
memory kernel
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
FR983941A
Other languages
French (fr)
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.)
Hitachi Ltd
Original Assignee
Hitachi Ltd
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 Hitachi Ltd filed Critical Hitachi Ltd
Application granted granted Critical
Publication of FR1405622A publication Critical patent/FR1405622A/en
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
    • C04B35/2691—Other ferrites containing alkaline metals
    • 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
    • C04B35/2616—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 containing lithium
    • 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
    • C04B35/2625—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 containing magnesium
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11C—STATIC STORES
    • G11C11/00—Digital stores characterised by the use of particular electric or magnetic storage elements; Storage elements therefor
    • G11C11/02—Digital stores characterised by the use of particular electric or magnetic storage elements; Storage elements therefor using magnetic elements
    • G11C11/06—Digital stores characterised by the use of particular electric or magnetic storage elements; Storage elements therefor using magnetic elements using single-aperture storage elements, e.g. ring core; using multi-aperture plates in which each individual aperture forms a storage element
    • G11C11/06007—Digital stores characterised by the use of particular electric or magnetic storage elements; Storage elements therefor using magnetic elements using single-aperture storage elements, e.g. ring core; using multi-aperture plates in which each individual aperture forms a storage element using a single aperture or single magnetic closed circuit

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Ceramic Engineering (AREA)
  • Materials Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Structural Engineering (AREA)
  • Organic Chemistry (AREA)
  • Computer Hardware Design (AREA)
  • Magnetic Ceramics (AREA)
  • Soft Magnetic Materials (AREA)
  • Compounds Of Iron (AREA)
FR983941A 1963-08-02 1964-08-01 Product for a memory kernel usable in wide temperature ranges and method of making such product Expired FR1405622A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP4030563 1963-08-02

Publications (1)

Publication Number Publication Date
FR1405622A true FR1405622A (en) 1965-07-09

Family

ID=12576890

Family Applications (1)

Application Number Title Priority Date Filing Date
FR983941A Expired FR1405622A (en) 1963-08-02 1964-08-01 Product for a memory kernel usable in wide temperature ranges and method of making such product

Country Status (4)

Country Link
US (1) US3370011A (en)
DE (1) DE1471300B2 (en)
FR (1) FR1405622A (en)
GB (1) GB1073237A (en)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS528517B1 (en) * 1966-12-28 1977-03-09
DE1671071C3 (en) * 1967-09-26 1974-09-12 Siemens Ag, 1000 Berlin Und 8000 Muenchen Method of making a ferromagnetic !! Lithium zinc ferrite core
US3640867A (en) * 1968-05-10 1972-02-08 Hitachi Ltd Lithium-zinc ferrite composition with arsenic oxide or bismuth oxide additive
NL170678C (en) * 1970-06-26 1982-12-01 Philips Nv METHOD FOR MANUFACTURING A MAGNETIC CORE OF A SOFT MAGNETIC FERRITE
JPS5529014B1 (en) * 1971-06-14 1980-07-31
US5798198A (en) * 1993-04-09 1998-08-25 Powdertech Corporation Non-stoichiometric lithium ferrite carrier
JP3238006B2 (en) * 1994-06-07 2001-12-10 パウダーテック株式会社 Ferrite carrier for electrophotographic developer and developer using the carrier

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL77389C (en) * 1949-04-28 1955-02-15
FR1115324A (en) * 1953-12-11 1956-04-23 Philips Nv Process for obtaining a magnetic core with a practically rectangular hyteresis cycle
US3047429A (en) * 1959-03-27 1962-07-31 Rca Corp Magnetic recording medium comprising coatings of ferrite particles of the molar composite amno.bzno.cfe2o3

Also Published As

Publication number Publication date
US3370011A (en) 1968-02-20
GB1073237A (en) 1967-06-21
DE1471300B2 (en) 1971-06-03
DE1471300A1 (en) 1970-08-20

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