Process for thermoremanent duplication of magnetic recording master tape onto slave tape with reduced dimensional changes of slave tape
A process for thermoremanent duplication of a magnetic recording tape, which comprises recording magnetic signals by thermoremanent duplication on a slave tape consisting of a polyester film base and a layer of a ferromagnetic material coated thereon, and then heat-treating said magnetic recording s...
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creator | ASAI TAKEO |
description | A process for thermoremanent duplication of a magnetic recording tape, which comprises recording magnetic signals by thermoremanent duplication on a slave tape consisting of a polyester film base and a layer of a ferromagnetic material coated thereon, and then heat-treating said magnetic recording slave tape without stretch at a temperature of at least 40 DEG C. but less than the Curie point of said ferromagnetic material. Dimensional changes of the slave tape after thermal duplication are thereby reduced. |
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Dimensional changes of the slave tape after thermal duplication are thereby reduced.</description><language>eng</language><subject>INFORMATION STORAGE ; INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORDCARRIER AND TRANSDUCER ; PHYSICS</subject><creationdate>1976</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=19760330&DB=EPODOC&CC=US&NR=3947872A$$EHTML$$P50$$Gepo$$Hfree_for_read</linktohtml><link.rule.ids>230,308,778,883,25551,76302</link.rule.ids><linktorsrc>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=19760330&DB=EPODOC&CC=US&NR=3947872A$$EView_record_in_European_Patent_Office$$FView_record_in_$$GEuropean_Patent_Office$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>ASAI; TAKEO</creatorcontrib><title>Process for thermoremanent duplication of magnetic recording master tape onto slave tape with reduced dimensional changes of slave tape</title><description>A process for thermoremanent duplication of a magnetic recording tape, which comprises recording magnetic signals by thermoremanent duplication on a slave tape consisting of a polyester film base and a layer of a ferromagnetic material coated thereon, and then heat-treating said magnetic recording slave tape without stretch at a temperature of at least 40 DEG C. but less than the Curie point of said ferromagnetic material. Dimensional changes of the slave tape after thermal duplication are thereby reduced.</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>1976</creationdate><recordtype>patent</recordtype><sourceid>EVB</sourceid><recordid>eNqFjbEKAjEQRK-xEPUb3B-w8YTTUkSxFNRalmTvLpDshmxOP8HfNqJgaTXM8GZmXD1PSQypQisJck8pSKKATJzBDtE7g9kJg7QQsGPKzkAiI8k67kqkmUoPI4FwFlCPd_r4h8t9Qe1gyIJ1gVjLEHowPXJH-p784dNq1KJXmn11Us0P-8vuuKAoN9KIhsr57XquN6tm3Sy39X_iBeaRTAY</recordid><startdate>19760330</startdate><enddate>19760330</enddate><creator>ASAI; TAKEO</creator><scope>EVB</scope></search><sort><creationdate>19760330</creationdate><title>Process for thermoremanent duplication of magnetic recording master tape onto slave tape with reduced dimensional changes of slave tape</title><author>ASAI; TAKEO</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-epo_espacenet_US3947872A3</frbrgroupid><rsrctype>patents</rsrctype><prefilter>patents</prefilter><language>eng</language><creationdate>1976</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>ASAI; TAKEO</creatorcontrib><collection>esp@cenet</collection></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext_linktorsrc</fulltext></delivery><addata><au>ASAI; TAKEO</au><format>patent</format><genre>patent</genre><ristype>GEN</ristype><title>Process for thermoremanent duplication of magnetic recording master tape onto slave tape with reduced dimensional changes of slave tape</title><date>1976-03-30</date><risdate>1976</risdate><abstract>A process for thermoremanent duplication of a magnetic recording tape, which comprises recording magnetic signals by thermoremanent duplication on a slave tape consisting of a polyester film base and a layer of a ferromagnetic material coated thereon, and then heat-treating said magnetic recording slave tape without stretch at a temperature of at least 40 DEG C. but less than the Curie point of said ferromagnetic material. Dimensional changes of the slave tape after thermal duplication are thereby reduced.</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 | Process for thermoremanent duplication of magnetic recording master tape onto slave tape with reduced dimensional changes of slave tape |
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