MAGNETIC RECORDING MEDIUM, MAGNETIC TAPE CARTRIDGE, AND MAGNETIC RECORDING AND PLAYBACK DEVICE
To provide a magnetic recording medium that can exhibit excellent electromagnetic conversion properties.SOLUTION: The present invention provides: a magnetic recording medium which comprises a non-magnetic support and a magnetic layer that contains a ferromagnetic powder; and a magnetic tape cartridg...
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| creator | WATADA YUSUKE KOYANAGI NORIKO |
| description | To provide a magnetic recording medium that can exhibit excellent electromagnetic conversion properties.SOLUTION: The present invention provides: a magnetic recording medium which comprises a non-magnetic support and a magnetic layer that contains a ferromagnetic powder; and a magnetic tape cartridge and a magnetic recording and playback device which comprise the magnetic recording medium. Half-Rq derived in the surface of the magnetic layer is 3.0 nm or less. The Half-Rq is the root mean square roughness derived for only the positive section of surface profile data obtained by inverse Fourier transformation of components having a frequency of 25 Hz or less in a power spectrum density on the surface of the magnetic layer.SELECTED DRAWING: None
【課題】優れた電磁変換特性を発揮することができる磁気記録媒体を提供すること。【解決手段】非磁性支持体と強磁性粉末を含む磁性層とを有する磁気記録媒体。上記磁性層の表面において求められるＨａｌｆ－Ｒｑは３．０ｎｍ以下である。上記Ｈａｌｆ－Ｒｑは、上記磁性層の表面のパワースペクトラムデンシティーについて、周波数２５Ｈｚ以下の成分を逆フーリエ変換して得られた表面プロファイルデータの正の部分のみについて求められた二乗平均粗さである。上記磁気記録媒体を含む磁気テープカートリッジおよび磁気記録再生装置。【選択図】なし |
| format | Patent |
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【課題】優れた電磁変換特性を発揮することができる磁気記録媒体を提供すること。【解決手段】非磁性支持体と強磁性粉末を含む磁性層とを有する磁気記録媒体。上記磁性層の表面において求められるＨａｌｆ－Ｒｑは３．０ｎｍ以下である。上記Ｈａｌｆ－Ｒｑは、上記磁性層の表面のパワースペクトラムデンシティーについて、周波数２５Ｈｚ以下の成分を逆フーリエ変換して得られた表面プロファイルデータの正の部分のみについて求められた二乗平均粗さである。上記磁気記録媒体を含む磁気テープカートリッジおよび磁気記録再生装置。【選択図】なし</description><language>eng ; jpn</language><subject>INFORMATION STORAGE ; INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORDCARRIER AND TRANSDUCER ; PHYSICS</subject><creationdate>2022</creationdate><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=20220210&DB=EPODOC&CC=JP&NR=2022027074A$$EHTML$$P50$$Gepo$$Hfree_for_read</linktohtml><link.rule.ids>230,308,780,885,25564,76547</link.rule.ids><linktorsrc>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=20220210&DB=EPODOC&CC=JP&NR=2022027074A$$EView_record_in_European_Patent_Office$$FView_record_in_$$GEuropean_Patent_Office$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>WATADA YUSUKE</creatorcontrib><creatorcontrib>KOYANAGI NORIKO</creatorcontrib><title>MAGNETIC RECORDING MEDIUM, MAGNETIC TAPE CARTRIDGE, AND MAGNETIC RECORDING AND PLAYBACK DEVICE</title><description>To provide a magnetic recording medium that can exhibit excellent electromagnetic conversion properties.SOLUTION: The present invention provides: a magnetic recording medium which comprises a non-magnetic support and a magnetic layer that contains a ferromagnetic powder; and a magnetic tape cartridge and a magnetic recording and playback device which comprise the magnetic recording medium. Half-Rq derived in the surface of the magnetic layer is 3.0 nm or less. The Half-Rq is the root mean square roughness derived for only the positive section of surface profile data obtained by inverse Fourier transformation of components having a frequency of 25 Hz or less in a power spectrum density on the surface of the magnetic layer.SELECTED DRAWING: None
【課題】優れた電磁変換特性を発揮することができる磁気記録媒体を提供すること。【解決手段】非磁性支持体と強磁性粉末を含む磁性層とを有する磁気記録媒体。上記磁性層の表面において求められるＨａｌｆ－Ｒｑは３．０ｎｍ以下である。上記Ｈａｌｆ－Ｒｑは、上記磁性層の表面のパワースペクトラムデンシティーについて、周波数２５Ｈｚ以下の成分を逆フーリエ変換して得られた表面プロファイルデータの正の部分のみについて求められた二乗平均粗さである。上記磁気記録媒体を含む磁気テープカートリッジおよび磁気記録再生装置。【選択図】なし</description><subject>INFORMATION STORAGE</subject><subject>INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORDCARRIER AND TRANSDUCER</subject><subject>PHYSICS</subject><fulltext>true</fulltext><rsrctype>patent</rsrctype><creationdate>2022</creationdate><recordtype>patent</recordtype><sourceid>EVB</sourceid><recordid>eNrjZIjzdXT3cw3xdFYIcnX2D3Lx9HNX8HV18Qz11VGAS4U4BrgqODsGhQR5uri76ig4-rkoYNEHEg7wcYx0cnT2VnBxDfN0duVhYE1LzClO5YXS3AxKbq4hzh66qQX58anFBYnJqXmpJfFeAUYGRkBkbmBu4mhMlCIAJUgylA</recordid><startdate>20220210</startdate><enddate>20220210</enddate><creator>WATADA YUSUKE</creator><creator>KOYANAGI NORIKO</creator><scope>EVB</scope></search><sort><creationdate>20220210</creationdate><title>MAGNETIC RECORDING MEDIUM, MAGNETIC TAPE CARTRIDGE, AND MAGNETIC RECORDING AND PLAYBACK DEVICE</title><author>WATADA YUSUKE ; KOYANAGI NORIKO</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-epo_espacenet_JP2022027074A3</frbrgroupid><rsrctype>patents</rsrctype><prefilter>patents</prefilter><language>eng ; jpn</language><creationdate>2022</creationdate><topic>INFORMATION STORAGE</topic><topic>INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORDCARRIER AND TRANSDUCER</topic><topic>PHYSICS</topic><toplevel>online_resources</toplevel><creatorcontrib>WATADA YUSUKE</creatorcontrib><creatorcontrib>KOYANAGI NORIKO</creatorcontrib><collection>esp@cenet</collection></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext_linktorsrc</fulltext></delivery><addata><au>WATADA YUSUKE</au><au>KOYANAGI NORIKO</au><format>patent</format><genre>patent</genre><ristype>GEN</ristype><title>MAGNETIC RECORDING MEDIUM, MAGNETIC TAPE CARTRIDGE, AND MAGNETIC RECORDING AND PLAYBACK DEVICE</title><date>2022-02-10</date><risdate>2022</risdate><abstract>To provide a magnetic recording medium that can exhibit excellent electromagnetic conversion properties.SOLUTION: The present invention provides: a magnetic recording medium which comprises a non-magnetic support and a magnetic layer that contains a ferromagnetic powder; and a magnetic tape cartridge and a magnetic recording and playback device which comprise the magnetic recording medium. Half-Rq derived in the surface of the magnetic layer is 3.0 nm or less. The Half-Rq is the root mean square roughness derived for only the positive section of surface profile data obtained by inverse Fourier transformation of components having a frequency of 25 Hz or less in a power spectrum density on the surface of the magnetic layer.SELECTED DRAWING: None
【課題】優れた電磁変換特性を発揮することができる磁気記録媒体を提供すること。【解決手段】非磁性支持体と強磁性粉末を含む磁性層とを有する磁気記録媒体。上記磁性層の表面において求められるＨａｌｆ－Ｒｑは３．０ｎｍ以下である。上記Ｈａｌｆ－Ｒｑは、上記磁性層の表面のパワースペクトラムデンシティーについて、周波数２５Ｈｚ以下の成分を逆フーリエ変換して得られた表面プロファイルデータの正の部分のみについて求められた二乗平均粗さである。上記磁気記録媒体を含む磁気テープカートリッジおよび磁気記録再生装置。【選択図】なし</abstract><oa>free_for_read</oa></addata></record> |
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| subjects | INFORMATION STORAGE INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORDCARRIER AND TRANSDUCER PHYSICS |
| title | MAGNETIC RECORDING MEDIUM, MAGNETIC TAPE CARTRIDGE, AND MAGNETIC RECORDING AND PLAYBACK DEVICE |
| url | https://sfx.bib-bvb.de/sfx_tum?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&ctx_tim=2025-01-07T00%3A33%3A35IST&url_ver=Z39.88-2004&url_ctx_fmt=infofi/fmt:kev:mtx:ctx&rfr_id=info:sid/primo.exlibrisgroup.com:primo3-Article-epo_EVB&rft_val_fmt=info:ofi/fmt:kev:mtx:patent&rft.genre=patent&rft.au=WATADA%20YUSUKE&rft.date=2022-02-10&rft_id=info:doi/&rft_dat=%3Cepo_EVB%3EJP2022027074A%3C/epo_EVB%3E%3Curl%3E%3C/url%3E&disable_directlink=true&sfx.directlink=off&sfx.report_link=0&rft_id=info:oai/&rft_id=info:pmid/&rfr_iscdi=true |