JPH0379765B2 - - Google Patents

Info

Publication number
JPH0379765B2
JPH0379765B2 JP57150328A JP15032882A JPH0379765B2 JP H0379765 B2 JPH0379765 B2 JP H0379765B2 JP 57150328 A JP57150328 A JP 57150328A JP 15032882 A JP15032882 A JP 15032882A JP H0379765 B2 JPH0379765 B2 JP H0379765B2
Authority
JP
Japan
Prior art keywords
group
binder
magnetic
hydrogen
alkali metal
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 - Lifetime
Application number
JP57150328A
Other languages
English (en)
Japanese (ja)
Other versions
JPS5940320A (ja
Inventor
Yoshinobu Ninomya
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.)
Filing date
Publication date
Application filed by Sony Corp filed Critical Sony Corp
Priority to JP15032882A priority Critical patent/JPS5940320A/ja
Publication of JPS5940320A publication Critical patent/JPS5940320A/ja
Publication of JPH0379765B2 publication Critical patent/JPH0379765B2/ja
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
    • G11B5/702—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 bonding agent
    • G11B5/7021—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 bonding agent containing a polyurethane or a polyisocyanate
    • G11B5/7022—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 bonding agent containing a polyurethane or a polyisocyanate containing mixtures of polyurethanes or polyisocyanates with other polymers

Landscapes

  • Paints Or Removers (AREA)
  • Magnetic Record Carriers (AREA)
JP15032882A 1982-08-30 1982-08-30 磁気記録媒体 Granted JPS5940320A (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP15032882A JPS5940320A (ja) 1982-08-30 1982-08-30 磁気記録媒体

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP15032882A JPS5940320A (ja) 1982-08-30 1982-08-30 磁気記録媒体

Publications (2)

Publication Number Publication Date
JPS5940320A JPS5940320A (ja) 1984-03-06
JPH0379765B2 true JPH0379765B2 (en]) 1991-12-19

Family

ID=15494611

Family Applications (1)

Application Number Title Priority Date Filing Date
JP15032882A Granted JPS5940320A (ja) 1982-08-30 1982-08-30 磁気記録媒体

Country Status (1)

Country Link
JP (1) JPS5940320A (en])

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0719366B2 (ja) * 1985-08-08 1995-03-06 ソニー株式会社 磁気記録媒体
US4732812A (en) * 1986-06-23 1988-03-22 Minnesota Mining And Manufacturing Company Magnetic recording medium
JPH0668828B2 (ja) * 1986-09-05 1994-08-31 富士写真フイルム株式会社 磁気記録媒体
JPS63273209A (ja) * 1987-04-30 1988-11-10 Hitachi Maxell Ltd 磁気記録媒体
JP2825483B2 (ja) * 1987-05-06 1998-11-18 ソニー株式会社 磁気記録媒体
JPH039967A (ja) * 1989-06-06 1991-01-17 Dainichiseika Color & Chem Mfg Co Ltd 磁気記録媒体

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5338760A (en) * 1976-09-16 1978-04-10 Nakagawa Orimono Kk Method of fitting pattern for shift woven fabric with splashed patterns
JPS56101636A (en) * 1980-01-19 1981-08-14 Hitachi Maxell Ltd Magnetic recording medium
JPS5730121A (en) * 1980-07-31 1982-02-18 Tdk Corp Magnetic recording medium
JPS5740743A (en) * 1980-08-23 1982-03-06 Sony Corp Magnetic recording medium
JPS5744227A (en) * 1980-08-30 1982-03-12 Sony Corp Magnetic recording medium
JPS5758227A (en) * 1980-09-25 1982-04-07 Tdk Corp Magnetic recording medium
JPS5792422A (en) * 1980-11-25 1982-06-09 Sony Corp Magnetic recording medium
JPS57133521A (en) * 1981-02-10 1982-08-18 Fuji Photo Film Co Ltd Magnetic recording medium
JPS58137133A (ja) * 1982-02-09 1983-08-15 Fuji Photo Film Co Ltd 磁気記録体
JPS5930235A (ja) * 1982-08-10 1984-02-17 Fuji Photo Film Co Ltd 磁気記録媒体

Also Published As

Publication number Publication date
JPS5940320A (ja) 1984-03-06

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