FR2232521A1 - - Google Patents

Info

Publication number
FR2232521A1
FR2232521A1 FR7419900A FR7419900A FR2232521A1 FR 2232521 A1 FR2232521 A1 FR 2232521A1 FR 7419900 A FR7419900 A FR 7419900A FR 7419900 A FR7419900 A FR 7419900A FR 2232521 A1 FR2232521 A1 FR 2232521A1
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.)
Withdrawn
Application number
FR7419900A
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.)
3M Co
Original Assignee
Minnesota Mining and Manufacturing Co
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 Minnesota Mining and Manufacturing Co filed Critical Minnesota Mining and Manufacturing Co
Publication of FR2232521A1 publication Critical patent/FR2232521A1/fr
Withdrawn legal-status Critical Current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
    • C04B35/2683—Other ferrites containing 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)
  • Compounds Of Iron (AREA)
  • Magnetic Ceramics (AREA)
  • Manufacturing Of Magnetic Record Carriers (AREA)
  • Magnetic Record Carriers (AREA)
FR7419900A 1973-06-11 1974-06-10 Withdrawn FR2232521A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US36850073A 1973-06-11 1973-06-11

Publications (1)

Publication Number Publication Date
FR2232521A1 true FR2232521A1 (en) 1975-01-03

Family

ID=23451501

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7419900A Withdrawn FR2232521A1 (en) 1973-06-11 1974-06-10

Country Status (5)

Country Link
JP (1) JPS5032498A (en)
DE (1) DE2428004A1 (en)
FR (1) FR2232521A1 (en)
GB (1) GB1479762A (en)
IT (1) IT1013436B (en)

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2446645A1 (en) * 1974-09-30 1976-04-15 Shell Int Research Barium, strontium and lead ferrites - produced by hot pressing mixt. of oxides with minor amts. of fluorides
JPS5827212B2 (en) * 1979-06-08 1983-06-08 同和鉱業株式会社 Dry manufacturing method of hexagonal ferrite
JPS6015575B2 (en) * 1980-03-21 1985-04-20 株式会社東芝 Method for producing magnetic powder for magnetic recording
JPS56124181U (en) * 1980-02-23 1981-09-21
JPS6015577B2 (en) * 1980-05-27 1985-04-20 株式会社東芝 Method for producing magnetic powder for magnetic recording
JPS5798134A (en) * 1980-12-11 1982-06-18 Fuji Photo Film Co Ltd Magnetic recording body
GB2173811B (en) * 1985-04-05 1988-08-24 Tdk Corp Magnetic recording medium
JPS63156018A (en) * 1986-08-08 1988-06-29 Ube Ind Ltd Production of ferrite powder
JP2532098Y2 (en) * 1990-10-12 1997-04-09 株式会社タダノ Work vehicle detector
JPH056744A (en) * 1991-06-26 1993-01-14 Victor Co Of Japan Ltd Electromagnetic focusing device
US5268249A (en) * 1992-10-29 1993-12-07 Eastman Kodak Company Magnetic carrier particles
US5306592A (en) * 1992-10-29 1994-04-26 Eastman Kodak Company Method of preparing electrographic magnetic carrier particles
CN114409392B (en) * 2022-01-21 2023-03-28 电子科技大学 High-remanence-ratio low-loss composite hexagonal ferrite material and preparation method thereof

Also Published As

Publication number Publication date
IT1013436B (en) 1977-03-30
JPS5032498A (en) 1975-03-29
GB1479762A (en) 1977-07-13
DE2428004A1 (en) 1975-01-02

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Legal Events

Date Code Title Description
ST Notification of lapse