ROTARY ERASING HEAD

ROTARY ERASING HEAD

PURPOSE:To improve the erasing efficiency by increasing the saturation magnetic flux density of a magnetic core which is interposed between operating gaps to constitute a magnetic circuit in comparison with the magnetic cores constituting magnetic circuits on both sides of operating gaps. CONSTITUTI...

Ausführliche Beschreibung

Gespeichert in:
Bibliographische Detailangaben
Hauptverfasser: TAKAYAMA SADAKAZU, YAMADA MASAMICHI, OHATA TSUKASA, SHINODA IKUO, ARIKAWA YASUYUKI
Format: Patent
Sprache:eng
Schlagworte:
INFORMATION STORAGE
INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORDCARRIER AND TRANSDUCER
PHYSICS
Online-Zugang:Volltext bestellen
Tags: Tag hinzufügen
Keine Tags, Fügen Sie den ersten Tag hinzu!
container_end_page
container_issue
container_start_page
container_title
container_volume
creator TAKAYAMA SADAKAZU
YAMADA MASAMICHI
OHATA TSUKASA
SHINODA IKUO
ARIKAWA YASUYUKI
description PURPOSE:To improve the erasing efficiency by increasing the saturation magnetic flux density of a magnetic core which is interposed between operating gaps to constitute a magnetic circuit in comparison with the magnetic cores constituting magnetic circuits on both sides of operating gaps. CONSTITUTION:Two erasing operating gaps G1 and G2 are formed, and a third magnetic core 3 uses a magnetic material whose saturation magnetic flux density is higher than that of first and second magnetic cores 1 and 2. Therefore, the distributions of erasing gap magnetic fields A1 and A2 asymmetrical with respect to gap centers are obtained in the parts of operating gaps G1 and G2, and the strength of erasing gas magnetic fields themselves is increased. Thus, the strength of the erasing magnetic field is increased, and the erasing efficiency is improved by double erasing due to two gaps.
format Patent
fullrecord <record><control><sourceid>epo_EVB</sourceid><recordid>TN_cdi_epo_espacenet_JPH0482003A</recordid><sourceformat>XML</sourceformat><sourcesystem>PC</sourcesystem><sourcerecordid>JPH0482003A</sourcerecordid><originalsourceid>FETCH-epo_espacenet_JPH0482003A3</originalsourceid><addsrcrecordid>eNrjZBAO8g9xDIpUcA1yDPb0c1fwcHV04WFgTUvMKU7lhdLcDApuriHOHrqpBfnxqcUFicmpeakl8V4BHgYmFkYGBsaOxkQoAQAeER34</addsrcrecordid><sourcetype>Open Access Repository</sourcetype><iscdi>true</iscdi><recordtype>patent</recordtype></control><display><type>patent</type><title>ROTARY ERASING HEAD</title><source>esp@cenet</source><creator>TAKAYAMA SADAKAZU ; YAMADA MASAMICHI ; OHATA TSUKASA ; SHINODA IKUO ; ARIKAWA YASUYUKI</creator><creatorcontrib>TAKAYAMA SADAKAZU ; YAMADA MASAMICHI ; OHATA TSUKASA ; SHINODA IKUO ; ARIKAWA YASUYUKI</creatorcontrib><description>PURPOSE:To improve the erasing efficiency by increasing the saturation magnetic flux density of a magnetic core which is interposed between operating gaps to constitute a magnetic circuit in comparison with the magnetic cores constituting magnetic circuits on both sides of operating gaps. CONSTITUTION:Two erasing operating gaps G1 and G2 are formed, and a third magnetic core 3 uses a magnetic material whose saturation magnetic flux density is higher than that of first and second magnetic cores 1 and 2. Therefore, the distributions of erasing gap magnetic fields A1 and A2 asymmetrical with respect to gap centers are obtained in the parts of operating gaps G1 and G2, and the strength of erasing gas magnetic fields themselves is increased. Thus, the strength of the erasing magnetic field is increased, and the erasing efficiency is improved by double erasing due to two gaps.</description><language>eng</language><subject>INFORMATION STORAGE ; INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORDCARRIER AND TRANSDUCER ; PHYSICS</subject><creationdate>1992</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&amp;date=19920316&amp;DB=EPODOC&amp;CC=JP&amp;NR=H0482003A$$EHTML$$P50$$Gepo$$Hfree_for_read</linktohtml><link.rule.ids>230,308,777,882,25545,76296</link.rule.ids><linktorsrc>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&amp;date=19920316&amp;DB=EPODOC&amp;CC=JP&amp;NR=H0482003A$$EView_record_in_European_Patent_Office$$FView_record_in_$$GEuropean_Patent_Office$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>TAKAYAMA SADAKAZU</creatorcontrib><creatorcontrib>YAMADA MASAMICHI</creatorcontrib><creatorcontrib>OHATA TSUKASA</creatorcontrib><creatorcontrib>SHINODA IKUO</creatorcontrib><creatorcontrib>ARIKAWA YASUYUKI</creatorcontrib><title>ROTARY ERASING HEAD</title><description>PURPOSE:To improve the erasing efficiency by increasing the saturation magnetic flux density of a magnetic core which is interposed between operating gaps to constitute a magnetic circuit in comparison with the magnetic cores constituting magnetic circuits on both sides of operating gaps. CONSTITUTION:Two erasing operating gaps G1 and G2 are formed, and a third magnetic core 3 uses a magnetic material whose saturation magnetic flux density is higher than that of first and second magnetic cores 1 and 2. Therefore, the distributions of erasing gap magnetic fields A1 and A2 asymmetrical with respect to gap centers are obtained in the parts of operating gaps G1 and G2, and the strength of erasing gas magnetic fields themselves is increased. Thus, the strength of the erasing magnetic field is increased, and the erasing efficiency is improved by double erasing due to two gaps.</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>1992</creationdate><recordtype>patent</recordtype><sourceid>EVB</sourceid><recordid>eNrjZBAO8g9xDIpUcA1yDPb0c1fwcHV04WFgTUvMKU7lhdLcDApuriHOHrqpBfnxqcUFicmpeakl8V4BHgYmFkYGBsaOxkQoAQAeER34</recordid><startdate>19920316</startdate><enddate>19920316</enddate><creator>TAKAYAMA SADAKAZU</creator><creator>YAMADA MASAMICHI</creator><creator>OHATA TSUKASA</creator><creator>SHINODA IKUO</creator><creator>ARIKAWA YASUYUKI</creator><scope>EVB</scope></search><sort><creationdate>19920316</creationdate><title>ROTARY ERASING HEAD</title><author>TAKAYAMA SADAKAZU ; YAMADA MASAMICHI ; OHATA TSUKASA ; SHINODA IKUO ; ARIKAWA YASUYUKI</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-epo_espacenet_JPH0482003A3</frbrgroupid><rsrctype>patents</rsrctype><prefilter>patents</prefilter><language>eng</language><creationdate>1992</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>TAKAYAMA SADAKAZU</creatorcontrib><creatorcontrib>YAMADA MASAMICHI</creatorcontrib><creatorcontrib>OHATA TSUKASA</creatorcontrib><creatorcontrib>SHINODA IKUO</creatorcontrib><creatorcontrib>ARIKAWA YASUYUKI</creatorcontrib><collection>esp@cenet</collection></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext_linktorsrc</fulltext></delivery><addata><au>TAKAYAMA SADAKAZU</au><au>YAMADA MASAMICHI</au><au>OHATA TSUKASA</au><au>SHINODA IKUO</au><au>ARIKAWA YASUYUKI</au><format>patent</format><genre>patent</genre><ristype>GEN</ristype><title>ROTARY ERASING HEAD</title><date>1992-03-16</date><risdate>1992</risdate><abstract>PURPOSE:To improve the erasing efficiency by increasing the saturation magnetic flux density of a magnetic core which is interposed between operating gaps to constitute a magnetic circuit in comparison with the magnetic cores constituting magnetic circuits on both sides of operating gaps. CONSTITUTION:Two erasing operating gaps G1 and G2 are formed, and a third magnetic core 3 uses a magnetic material whose saturation magnetic flux density is higher than that of first and second magnetic cores 1 and 2. Therefore, the distributions of erasing gap magnetic fields A1 and A2 asymmetrical with respect to gap centers are obtained in the parts of operating gaps G1 and G2, and the strength of erasing gas magnetic fields themselves is increased. Thus, the strength of the erasing magnetic field is increased, and the erasing efficiency is improved by double erasing due to two gaps.</abstract><oa>free_for_read</oa></addata></record>
fulltext fulltext_linktorsrc
identifier
ispartof
issn
language eng
recordid cdi_epo_espacenet_JPH0482003A
source esp@cenet
subjects INFORMATION STORAGE
INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORDCARRIER AND TRANSDUCER
PHYSICS
title ROTARY ERASING HEAD
url https://sfx.bib-bvb.de/sfx_tum?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&ctx_tim=2025-01-20T22%3A59%3A50IST&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=TAKAYAMA%20SADAKAZU&rft.date=1992-03-16&rft_id=info:doi/&rft_dat=%3Cepo_EVB%3EJPH0482003A%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