JP2021022415A5 - - Google Patents

Download PDF

Info

Publication number
JP2021022415A5
JP2021022415A5 JP2019139772A JP2019139772A JP2021022415A5 JP 2021022415 A5 JP2021022415 A5 JP 2021022415A5 JP 2019139772 A JP2019139772 A JP 2019139772A JP 2019139772 A JP2019139772 A JP 2019139772A JP 2021022415 A5 JP2021022415 A5 JP 2021022415A5
Authority
JP
Japan
Prior art keywords
magnetic
recording medium
less
magnetic field
iron oxide
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
JP2019139772A
Other languages
English (en)
Japanese (ja)
Other versions
JP2021022415A (ja
JP7197440B2 (ja
Filing date
Publication date
Application filed filed Critical
Priority to JP2019139772A priority Critical patent/JP7197440B2/ja
Priority claimed from JP2019139772A external-priority patent/JP7197440B2/ja
Priority to CN202010754770.0A priority patent/CN112309438A/zh
Priority to US16/942,940 priority patent/US20210035604A1/en
Publication of JP2021022415A publication Critical patent/JP2021022415A/ja
Publication of JP2021022415A5 publication Critical patent/JP2021022415A5/ja
Application granted granted Critical
Publication of JP7197440B2 publication Critical patent/JP7197440B2/ja
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

JP2019139772A 2019-07-30 2019-07-30 磁気記録媒体、磁気記録再生装置およびε－酸化鉄粉末 Active JP7197440B2 (ja)

Priority Applications (3)

Application Number Priority Date Filing Date Title
JP2019139772A JP7197440B2 (ja) 2019-07-30 2019-07-30 磁気記録媒体、磁気記録再生装置およびε－酸化鉄粉末
CN202010754770.0A CN112309438A (zh) 2019-07-30 2020-07-30 磁记录介质、磁记录再生装置及ε-氧化铁粉末
US16/942,940 US20210035604A1 (en) 2019-07-30 2020-07-30 MAGNETIC RECORDING MEDIUM, MAGNETIC RECORDING AND REPRODUCING DEVICE, AND e-IRON OXIDE POWDER

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2019139772A JP7197440B2 (ja) 2019-07-30 2019-07-30 磁気記録媒体、磁気記録再生装置およびε－酸化鉄粉末

Publications (3)

Publication Number Publication Date
JP2021022415A JP2021022415A (ja) 2021-02-18
JP2021022415A5 true JP2021022415A5 (enExample) 2021-10-07
JP7197440B2 JP7197440B2 (ja) 2022-12-27

Family

ID=74259720

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2019139772A Active JP7197440B2 (ja) 2019-07-30 2019-07-30 磁気記録媒体、磁気記録再生装置およびε－酸化鉄粉末

Country Status (3)

Country Link
US (1) US20210035604A1 (enExample)
JP (1) JP7197440B2 (enExample)
CN (1) CN112309438A (enExample)

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002260212A (ja) 2001-02-28 2002-09-13 Fuji Photo Film Co Ltd 六方晶系フェライト及びこれを用いた磁気記録媒体
JP4268629B2 (ja) 2002-03-18 2009-05-27 日立マクセル株式会社 磁気記録媒体および磁気記録カートリッジ
JP2005251351A (ja) 2004-03-08 2005-09-15 Fuji Photo Film Co Ltd 磁気記録媒体および強磁性金属粉末の製造方法
US20060068232A1 (en) * 2004-09-24 2006-03-30 Hitachi Maxell, Ltd. Magnetic tape
JP6754744B2 (ja) 2017-09-28 2020-09-16 富士フイルム株式会社 マイクロ波アシスト記録用磁気記録媒体、磁気記録装置および磁気記録媒体の製造方法

Similar Documents

Publication Publication Date Title
JP6084305B2 (ja) 磁気テープ処理
JP2010231843A5 (enExample)
CN1303090A (zh) 垂直磁记录介质、磁记录装置
GB2396740A (en) Anti-ferromagnetically coupled perpendicular magnetic recording media
JP2007200548A (ja) 垂直磁気記録ディスク
JP2005038579A (ja) 磁気記録媒体
DE602004021517D1 (de) Magnetisches Aufzeichnungsmittel
EP1367567A3 (en) Magnetic recording medium
KR100662148B1 (ko) 반강자성 또는 강자성 매트릭스 내 분산된 초상자성 나노입자들을 포함하는 열 보조 자기 기록 막
JP2004103092A5 (enExample)
JP2016009753A5 (enExample)
JP2005529439A (ja) 柔軟な両面磁気テープ
JP2006012294A (ja) 磁気記録再生装置および磁気記録媒体
JP3889635B2 (ja) 垂直磁気記録媒体
JP2021022415A5 (enExample)
JP2000215431A (ja) 磁気記録用媒体
JP3684047B2 (ja) 磁気記録媒体
JP3796256B2 (ja) 磁気記録再生装置
US6835444B2 (en) Magnetic recording medium using a perpendicular magnetic film having a tBr not exceeding one-fifth of a tBr of an in-plane magnetic film
Abarra et al. The effect of orientation ratio on the dynamic coercivity of media for> 15 Gbit/in/sup 2/recording
JP2006012319A (ja) 磁気記録媒体
JP2006031789A (ja) 磁気記録再生装置
Greaves et al. Split-pole write head for thermally assisted magnetic recording
JP2020187820A5 (enExample)
WO2008111370A1 (ja) 垂直磁気記録媒体、その製造方法および磁気記録再生装置