JPS61139922A - 磁気記録媒体 - Google Patents

磁気記録媒体

Info

Publication number
JPS61139922A
JPS61139922A JP59262069A JP26206984A JPS61139922A JP S61139922 A JPS61139922 A JP S61139922A JP 59262069 A JP59262069 A JP 59262069A JP 26206984 A JP26206984 A JP 26206984A JP S61139922 A JPS61139922 A JP S61139922A
Authority
JP
Japan
Prior art keywords
magnetic
cobalt
iron oxide
acicular
powder
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.)
Granted
Application number
JP59262069A
Other languages
English (en)
Japanese (ja)
Other versions
JPH0470687B2 (enrdf_load_stackoverflow
Inventor
Haruo Ando
安藤 晴夫
Yoshiharu Katsuta
勝田 善春
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.)
Maxell Ltd
Original Assignee
Hitachi Maxell 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 Maxell Ltd filed Critical Hitachi Maxell Ltd
Priority to JP59262069A priority Critical patent/JPS61139922A/ja
Publication of JPS61139922A publication Critical patent/JPS61139922A/ja
Publication of JPH0470687B2 publication Critical patent/JPH0470687B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Magnetic Record Carriers (AREA)
  • Paints Or Removers (AREA)
JP59262069A 1984-12-12 1984-12-12 磁気記録媒体 Granted JPS61139922A (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP59262069A JPS61139922A (ja) 1984-12-12 1984-12-12 磁気記録媒体

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP59262069A JPS61139922A (ja) 1984-12-12 1984-12-12 磁気記録媒体

Publications (2)

Publication Number Publication Date
JPS61139922A true JPS61139922A (ja) 1986-06-27
JPH0470687B2 JPH0470687B2 (enrdf_load_stackoverflow) 1992-11-11

Family

ID=17370593

Family Applications (1)

Application Number Title Priority Date Filing Date
JP59262069A Granted JPS61139922A (ja) 1984-12-12 1984-12-12 磁気記録媒体

Country Status (1)

Country Link
JP (1) JPS61139922A (enrdf_load_stackoverflow)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5404457B2 (ja) 2010-02-03 2014-01-29 三菱重工業株式会社 エンジンの排ガス浄化装置
JP6136298B2 (ja) 2013-01-28 2017-05-31 いすゞ自動車株式会社 内燃機関の排気浄化装置

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57123831A (en) * 1981-01-20 1982-08-02 Sakai Chem Ind Co Ltd Preparation of magnetic iron oxide powder

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57123831A (en) * 1981-01-20 1982-08-02 Sakai Chem Ind Co Ltd Preparation of magnetic iron oxide powder

Also Published As

Publication number Publication date
JPH0470687B2 (enrdf_load_stackoverflow) 1992-11-11

Similar Documents

Publication Publication Date Title
US5585032A (en) Ferromagnetic fine powder for magnetic recording
KR920008415B1 (ko) 자기 기록 매체
US5075169A (en) Plate-like composite ferrite particles for magnetic recording and process for producing the same
JPH0544163B2 (enrdf_load_stackoverflow)
JP3903139B2 (ja) 塗布型磁気記録媒体の下層用粉末
JPS61139922A (ja) 磁気記録媒体
JP2937211B2 (ja) 針状磁性酸化鉄粒子粉末の製造法
JP4139873B2 (ja) 塗布型磁気記録媒体の下層用粉末
JP5457260B2 (ja) 磁気記録媒体
US5378380A (en) Process for producing acicular geothite particles and acicular magnetic iron oxide particles
US4851258A (en) Method for preparing magnetic particles for magnetic-recording media
JP2924941B2 (ja) 磁気記録媒体用下地層
US20050120918A1 (en) Iron oxide powder for undercoat layer of coat-type magnetic recording medium having multilayer structure and a process of producing the same
JPS6129122B2 (enrdf_load_stackoverflow)
JPS62264431A (ja) 磁気記録媒体
JPH0644527B2 (ja) 磁気記録媒体
JP2547000B2 (ja) 磁気記録用強磁性微粉末
US4486467A (en) Process for producing cobalt-containing magnetic iron oxide powder
JPH1025115A (ja) 酸化鉄系磁性粉末及びこれを用いた磁気記録媒体
JP3512053B2 (ja) 磁気記録媒体の非磁性下地層用レピドクロサイト粒子粉末、磁気記録媒体の基体及び磁気記録媒体
JP2745306B2 (ja) 磁気記録用強磁性微粉末及びその製造方法
JPS62158801A (ja) 紡錘形状を呈した鉄を主成分とする金属磁性粒子粉末及びその製造法
JP2897794B2 (ja) コバルト被着型磁性酸化鉄粒子粉末の製造法
JPS6018609B2 (ja) 強磁性粉末およびその製造方法
JP2965606B2 (ja) 金属磁性粉末の製造方法