JP2019003715A5 - - Google Patents
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- Publication number
- JP2019003715A5 JP2019003715A5 JP2017116499A JP2017116499A JP2019003715A5 JP 2019003715 A5 JP2019003715 A5 JP 2019003715A5 JP 2017116499 A JP2017116499 A JP 2017116499A JP 2017116499 A JP2017116499 A JP 2017116499A JP 2019003715 A5 JP2019003715 A5 JP 2019003715A5
- Authority
- JP
- Japan
- Prior art keywords
- atom
- magnetic recording
- strontium ferrite
- ferrite powder
- hexagonal strontium
- 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.)
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- 230000005291 magnetic effect Effects 0.000 claims description 12
- 239000000843 powder Substances 0.000 claims description 9
- 229910052712 strontium Inorganic materials 0.000 claims description 7
- CIOAGBVUUVVLOB-UHFFFAOYSA-N strontium atom Chemical compound [Sr] CIOAGBVUUVVLOB-UHFFFAOYSA-N 0.000 claims description 7
- 229910000859 α-Fe Inorganic materials 0.000 claims description 7
- 230000004913 activation Effects 0.000 claims description 5
- 230000005415 magnetization Effects 0.000 claims description 3
- 150000002910 rare earth metals Chemical group 0.000 claims 4
- 230000005294 ferromagnetic effect Effects 0.000 claims 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims 1
- 229910052779 Neodymium Inorganic materials 0.000 claims 1
- 229910052772 Samarium Inorganic materials 0.000 claims 1
- 239000011230 binding agent Substances 0.000 claims 1
- 239000010410 layer Substances 0.000 claims 1
- QEFYFXOXNSNQGX-UHFFFAOYSA-N neodymium atom Chemical group [Nd] QEFYFXOXNSNQGX-UHFFFAOYSA-N 0.000 claims 1
- KZUNJOHGWZRPMI-UHFFFAOYSA-N samarium atom Chemical group [Sm] KZUNJOHGWZRPMI-UHFFFAOYSA-N 0.000 claims 1
- 239000002344 surface layer Substances 0.000 claims 1
- 229910052727 yttrium Inorganic materials 0.000 claims 1
- VWQVUPCCIRVNHF-UHFFFAOYSA-N yttrium atom Chemical group [Y] VWQVUPCCIRVNHF-UHFFFAOYSA-N 0.000 claims 1
- 238000005259 measurement Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2017116499A JP6787840B2 (ja) | 2017-06-14 | 2017-06-14 | 磁気記録用六方晶ストロンチウムフェライト粉末および磁気記録媒体 |
| CN201810611324.7A CN109087769B (zh) | 2017-06-14 | 2018-06-14 | 磁记录用六方晶锶铁氧体粉末及磁记录介质 |
| US16/008,147 US11244701B2 (en) | 2017-06-14 | 2018-06-14 | Hexagonal strontium ferrite powder for magnetic recording and magnetic recording medium |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2017116499A JP6787840B2 (ja) | 2017-06-14 | 2017-06-14 | 磁気記録用六方晶ストロンチウムフェライト粉末および磁気記録媒体 |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| JP2019003715A JP2019003715A (ja) | 2019-01-10 |
| JP2019003715A5 true JP2019003715A5 (enExample) | 2019-03-22 |
| JP6787840B2 JP6787840B2 (ja) | 2020-11-18 |
Family
ID=64658173
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2017116499A Active JP6787840B2 (ja) | 2017-06-14 | 2017-06-14 | 磁気記録用六方晶ストロンチウムフェライト粉末および磁気記録媒体 |
Country Status (3)
| Country | Link |
|---|---|
| US (1) | US11244701B2 (enExample) |
| JP (1) | JP6787840B2 (enExample) |
| CN (1) | CN109087769B (enExample) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP7126267B2 (ja) * | 2017-03-31 | 2022-08-26 | パウダーテック株式会社 | フェライト粉末、樹脂組成物および成形体 |
| 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 |
| JP7077241B2 (ja) | 2019-01-11 | 2022-05-30 | 富士フイルム株式会社 | 六方晶ストロンチウムフェライト粉末、磁気記録媒体および磁気記録再生装置 |
| JP7105202B2 (ja) | 2019-01-16 | 2022-07-22 | 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 |
| JP6985315B2 (ja) * | 2019-02-28 | 2021-12-22 | 富士フイルム株式会社 | 磁気テープ、磁気テープカートリッジおよび磁気記録再生装置 |
| JP2021028858A (ja) * | 2019-08-09 | 2021-02-25 | 富士フイルム株式会社 | 磁気記録媒体および磁気記録再生装置 |
| CN116282188B (zh) * | 2023-03-23 | 2024-09-06 | 中国科学院赣江创新研究院 | 一种钕掺杂锶铁氧体吸波材料及其制备方法 |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003059032A (ja) * | 2001-08-20 | 2003-02-28 | Fuji Photo Film Co Ltd | 六方晶系フェライト粉末及びそれを含む磁気記録媒体 |
| JP2010100489A (ja) * | 2008-10-24 | 2010-05-06 | Tdk Corp | フェライト粒子、フェライト粉末及び磁気記録媒体 |
| JP5855832B2 (ja) | 2010-01-29 | 2016-02-09 | Ｄｏｗａエレクトロニクス株式会社 | 磁気記録用六方晶フェライト磁性粉末及び該粉末を用いた磁気記録媒体 |
| JP5711086B2 (ja) | 2010-09-30 | 2015-04-30 | 富士フイルム株式会社 | 磁気記録用磁性粉およびその製造方法、ならびに磁気記録媒体 |
| JP5645865B2 (ja) * | 2012-03-30 | 2014-12-24 | 富士フイルム株式会社 | 六方晶ストロンチウムフェライト磁性粉末およびその製造方法、ならびに磁気記録媒体およびその製造方法 |
| WO2014208731A1 (ja) * | 2013-06-28 | 2014-12-31 | 富士フイルム株式会社 | 磁気記録用六方晶フェライト磁性粉、六方晶フェライト磁性粒子の製造方法、および磁気記録媒体 |
| JP6280922B2 (ja) * | 2013-09-30 | 2018-02-14 | 富士フイルム株式会社 | 六方晶フェライト粒子の製造方法および磁気記録媒体の製造方法 |
-
2017
- 2017-06-14 JP JP2017116499A patent/JP6787840B2/ja active Active
-
2018
- 2018-06-14 CN CN201810611324.7A patent/CN109087769B/zh active Active
- 2018-06-14 US US16/008,147 patent/US11244701B2/en active Active
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