JPS57135436A - Magnetic recording medium - Google Patents

Magnetic recording medium

Info

Publication number: JPS57135436A
Authority: JP; Japan
Prior art keywords: needle; recording medium; magnetic recording; ratio; alloy powder
Prior art date: 1981-02-14
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.): Granted

Application number

JP56020388A

Other languages

English (en)

Japanese (ja)

Other versions

JPH0373051B2 (2

Inventor

Ryoji Nakabachi

Naoko Kawamura

Masashi Somezawa

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.)

Sony Corp

Original Assignee

Sony 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.)

1981-02-14

Filing date

1981-02-14

Publication date

1982-08-21

1981-02-14 Application filed by Sony Corp filed Critical Sony Corp

1981-02-14 Priority to JP56020388A priority Critical patent/JPS57135436A/ja

1982-08-21 Publication of JPS57135436A publication Critical patent/JPS57135436A/ja

1991-11-20 Publication of JPH0373051B2 publication Critical patent/JPH0373051B2/ja

Status Granted legal-status Critical Current

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
- G11B5/62—Record carriers characterised by the selection of the material
- G11B5/68—Record carriers characterised by the selection of the material comprising one or more layers of magnetisable material homogeneously mixed with a bonding agent
- G11B5/70—Record carriers characterised by the selection of the material comprising one or more layers of magnetisable material homogeneously mixed with a bonding agent on a base layer
- G11B5/706—Record carriers characterised by the selection of the material comprising one or more layers of magnetisable material homogeneously mixed with a bonding agent on a base layer characterised by the composition of the magnetic material

Landscapes

Paints Or Removers (AREA)
Magnetic Record Carriers (AREA)

JP56020388A 1981-02-14 1981-02-14 Magnetic recording medium Granted JPS57135436A (en)

Priority Applications (1)

Application Number	Priority Date	Filing Date	Title
JP56020388A JPS57135436A (en)	1981-02-14	1981-02-14	Magnetic recording medium

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
JP56020388A JPS57135436A (en)	1981-02-14	1981-02-14	Magnetic recording medium

Publications (2)

Publication Number	Publication Date
JPS57135436A true JPS57135436A (en)	1982-08-21
JPH0373051B2 JPH0373051B2 (2)	1991-11-20

Family

ID=12025632

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
JP56020388A Granted JPS57135436A (en)	1981-02-14	1981-02-14	Magnetic recording medium

Country Status (1)

Country	Link
JP (1)	JPS57135436A (2)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
JPS5975432A (ja) *	1982-10-22	1984-04-28	Fuji Photo Film Co Ltd	磁気記録体
JPS59167854A (ja) *	1983-03-14	1984-09-21	Hitachi Maxell Ltd	磁気記録媒体
JPS59201218A (ja) *	1983-04-28	1984-11-14	Fuji Photo Film Co Ltd	磁気記録体
JPS6174137A (ja) *	1984-09-19	1986-04-16	Hitachi Maxell Ltd	磁気デイスク
JPH0666597U (ja) *	1991-11-07	1994-09-20	二郎伊藤	プレス用具
US6309479B1 (en)	1998-11-05	2001-10-30	Toda Kogyo Corporation	Spindle-shaped goethite particles, spindle-shaped hematite particles and magnetic spindle-shaped metal particles containing iron as main component

Citations (1)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
JPS5529577A (en) *	1978-08-16	1980-03-01	Bayer Ag	Production of titanium dioxide pigment

1981
- 1981-02-14 JP JP56020388A patent/JPS57135436A/ja active Granted

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
JPS5529577A (en) *	1978-08-16	1980-03-01	Bayer Ag	Production of titanium dioxide pigment

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
JPS5975432A (ja) *	1982-10-22	1984-04-28	Fuji Photo Film Co Ltd	磁気記録体
JPS59167854A (ja) *	1983-03-14	1984-09-21	Hitachi Maxell Ltd	磁気記録媒体
JPS59201218A (ja) *	1983-04-28	1984-11-14	Fuji Photo Film Co Ltd	磁気記録体
JPS6174137A (ja) *	1984-09-19	1986-04-16	Hitachi Maxell Ltd	磁気デイスク
JPH0666597U (ja) *	1991-11-07	1994-09-20	二郎伊藤	プレス用具
US6309479B1 (en)	1998-11-05	2001-10-30	Toda Kogyo Corporation	Spindle-shaped goethite particles, spindle-shaped hematite particles and magnetic spindle-shaped metal particles containing iron as main component
US6398863B1 (en)	1998-11-05	2002-06-04	Toda Kogyo Corporation	Spindle-shaped hematite particles and process for making spindle-shaped hematite particles

Also Published As

Publication number	Publication date
JPH0373051B2 (2)	1991-11-20

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