JPH0256735B2 - - Google Patents

Info

Publication number
JPH0256735B2
JPH0256735B2 JP59189748A JP18974884A JPH0256735B2 JP H0256735 B2 JPH0256735 B2 JP H0256735B2 JP 59189748 A JP59189748 A JP 59189748A JP 18974884 A JP18974884 A JP 18974884A JP H0256735 B2 JPH0256735 B2 JP H0256735B2
Authority
JP
Japan
Prior art keywords
carbon black
recording medium
information signal
weight
vinyl chloride
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
JP59189748A
Other languages
English (en)
Japanese (ja)
Other versions
JPS6168747A (ja
Inventor
Toshiaki Hamaguchi
Itsupei Namikawa
Toshio Akai
Mutsuaki Nakamura
Akio Kuroda
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.)
Victor Company of Japan Ltd
Original Assignee
Victor Company of Japan 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 Victor Company of Japan Ltd filed Critical Victor Company of Japan Ltd
Priority to JP59189748A priority Critical patent/JPS6168747A/ja
Priority to US06/774,800 priority patent/US4646284A/en
Priority to DE8585306507T priority patent/DE3577612D1/de
Priority to EP85306507A priority patent/EP0174864B1/en
Publication of JPS6168747A publication Critical patent/JPS6168747A/ja
Publication of JPH0256735B2 publication Critical patent/JPH0256735B2/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
    • G11B9/00—Recording or reproducing using a method not covered by one of the main groups G11B3/00 - G11B7/00; Record carriers therefor
    • G11B9/06—Recording or reproducing using a method not covered by one of the main groups G11B3/00 - G11B7/00; Record carriers therefor using record carriers having variable electrical capacitance; Record carriers therefor
    • G11B9/061—Record carriers characterised by their structure or form or by the selection of the material; Apparatus or processes specially adapted for the manufacture of record carriers
    • G11B9/063—Record carriers characterised by their structure or form or by the selection of the material; Apparatus or processes specially adapted for the manufacture of record carriers characterised by the selection of the material
    • G11B9/065—Additional layers for lubrication, wear protection or elimination of electrostatic charges of the interface between record carrier and head
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B9/00—Recording or reproducing using a method not covered by one of the main groups G11B3/00 - G11B7/00; Record carriers therefor
    • G11B9/06—Recording or reproducing using a method not covered by one of the main groups G11B3/00 - G11B7/00; Record carriers therefor using record carriers having variable electrical capacitance; Record carriers therefor
    • G11B9/061—Record carriers characterised by their structure or form or by the selection of the material; Apparatus or processes specially adapted for the manufacture of record carriers
    • G11B9/063—Record carriers characterised by their structure or form or by the selection of the material; Apparatus or processes specially adapted for the manufacture of record carriers characterised by the selection of the material
    • G11B9/068—Moulding resin compositions

Landscapes

  • Compositions Of Macromolecular Compounds (AREA)
JP59189748A 1984-09-12 1984-09-12 高密度情報信号記録媒体 Granted JPS6168747A (ja)

Priority Applications (4)

Application Number Priority Date Filing Date Title
JP59189748A JPS6168747A (ja) 1984-09-12 1984-09-12 高密度情報信号記録媒体
US06/774,800 US4646284A (en) 1984-09-12 1985-09-11 High density information record medium using carbon black particles surface-treated with silicone oil
DE8585306507T DE3577612D1 (de) 1984-09-12 1985-09-12 Aufzeichnungstraeger hoher speicherdichte, der mit silikonoel oberflaechenbehandelte russschwarzteilchen enthaelt.
EP85306507A EP0174864B1 (en) 1984-09-12 1985-09-12 High density information record medium using carbon black particles surface-treated with silicone oil

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP59189748A JPS6168747A (ja) 1984-09-12 1984-09-12 高密度情報信号記録媒体

Publications (2)

Publication Number Publication Date
JPS6168747A JPS6168747A (ja) 1986-04-09
JPH0256735B2 true JPH0256735B2 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) 1990-12-03

Family

ID=16246515

Family Applications (1)

Application Number Title Priority Date Filing Date
JP59189748A Granted JPS6168747A (ja) 1984-09-12 1984-09-12 高密度情報信号記録媒体

Country Status (4)

Country Link
US (1) US4646284A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
EP (1) EP0174864B1 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
JP (1) JPS6168747A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
DE (1) DE3577612D1 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE60238279D1 (de) * 2002-03-18 2010-12-23 Ntn Toyo Bearing Co Ltd Formkörper aus leitfähigem harz
CN112480719B (zh) * 2020-11-17 2021-12-28 唐山黑猫炭黑有限责任公司 一种具有金属光泽的纳米炭黑及其制备方法

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4228194A (en) * 1979-05-14 1980-10-14 Meeder Ernest P Electrically conductive article and method of making the same
US4299736A (en) * 1980-05-19 1981-11-10 Rca Corporation Conductive molding composition and discs therefrom
JPS5856243A (ja) * 1981-09-30 1983-04-02 Victor Co Of Japan Ltd 高密度情報信号記録媒体
US4412941A (en) * 1981-10-22 1983-11-01 Phillips Petroleum Company Recording disc compositions comprising polymers of monovinyl-substituted hydrocarbons, conductive carbon black and lubricants
US4472295A (en) * 1981-11-17 1984-09-18 Rca Corporation Conductive molding composition and discs therefrom
JPS59191153A (ja) * 1983-04-14 1984-10-30 Victor Co Of Japan Ltd 高密度情報信号記録媒体
JPS59195355A (ja) * 1983-04-20 1984-11-06 Victor Co Of Japan Ltd 高密度情報信号記録媒体
JPS59215041A (ja) * 1983-05-23 1984-12-04 Victor Co Of Japan Ltd 情報信号記録媒体
US4582662A (en) * 1983-05-27 1986-04-15 Mitsubishi Chemical Industries Ltd. Process for producing a carbon fiber from pitch material
JPS6020950A (ja) * 1983-07-13 1985-02-02 Nippon Zeon Co Ltd 硬質用塩化ビニル樹脂組成物

Also Published As

Publication number Publication date
US4646284A (en) 1987-02-24
DE3577612D1 (de) 1990-06-13
EP0174864B1 (en) 1990-05-09
EP0174864A3 (en) 1987-04-15
EP0174864A2 (en) 1986-03-19
JPS6168747A (ja) 1986-04-09

Similar Documents

Publication Publication Date Title
JPH0256735B2 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
US4378310A (en) Conductive molding composition
JPS59191153A (ja) 高密度情報信号記録媒体
US4436683A (en) Method for fabricating an information signal recorded medium of the electrostatic capacity type
US4776935A (en) High density record including carbon black particles purified by electrolysis
US4631717A (en) High density information records of an electrostatic capacitance type
US4547545A (en) High density information record made of a conductive resin composition comprising a specific type of dimethylpolysiloxane
JPS59112450A (ja) 導電性デイスク型記録担体
JPS6015845A (ja) 高密度情報信号記録媒体
JPS60101139A (ja) 導電性樹脂組成物及び静電容量型記録媒体
JPH0357543B2 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
JPH0127495B2 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
JPS6144952A (ja) 情報信号記録媒体
JPS649171B2 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
US4906499A (en) High density information record medium comprising a polymer material having a lubricant uniformly dispersed therein
JPS6024937A (ja) デイスク状記録媒体の製造方法
JPH0125148B2 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
JPS59195354A (ja) 高密度情報信号記録媒体
JPH024063B2 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
JPH0472297B2 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
JPS62106909A (ja) 情報信号記録媒体用樹脂
JPH0123861B2 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
JPS59113538A (ja) 導電性デイスク型記録担体の製造方法
JPH0452538B2 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
JPS63271742A (ja) 情報信号記録媒体及び情報信号記録媒体用樹脂の製造法