MAGNETIC HEAD
PURPOSE:To eliminate crack by cutting obliquely a sharp angle side of a bent part placed at both ends of a slope of an oxide magnetic core so as to disperse the distortion caused due to the difference from thermal expansion coefficients. CONSTITUTION:Cracks caused in oxide magnetic cores 11, 21 are...
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| creator | KONNO SEIKI |
| description | PURPOSE:To eliminate crack by cutting obliquely a sharp angle side of a bent part placed at both ends of a slope of an oxide magnetic core so as to disperse the distortion caused due to the difference from thermal expansion coefficients. CONSTITUTION:Cracks caused in oxide magnetic cores 11, 21 are caused through the concentrated stress near the bent part due to the difference from thermal expansion coefficient of nonmagnetic materials 7, 8 packet to the oxide magnetic cores 11, 21, ferromagnetic metallic films 12, 22 packed at both ends of the magnetic gap (g). The sharp angle side of the bent part located at both ends of slopes 11a, 21a regulating the track width TW and formed to the oxide magnetic cores 11, 21 is cut obliquely to disperse the stress onto the bent part due to the difference from the thermal expansion coefficients without a narrow track width L of the magnetic gap or further thin film of the ferromagnetic thin metallic films 12, 22 and cracks caused in conventional oxide magnetic cores 11, 21 are eliminated effectively. |
| format | Patent |
| fullrecord | <record><control><sourceid>epo_EVB</sourceid><recordid>TN_cdi_epo_espacenet_JPS63181105A</recordid><sourceformat>XML</sourceformat><sourcesystem>PC</sourcesystem><sourcerecordid>JPS63181105A</sourcerecordid><originalsourceid>FETCH-epo_espacenet_JPS63181105A3</originalsourceid><addsrcrecordid>eNrjZOD1dXT3cw3xdFbwcHV04WFgTUvMKU7lhdLcDIpuriHOHrqpBfnxqcUFicmpeakl8V4BwWbGhhaGhgamjsbEqAEAoC4cuA</addsrcrecordid><sourcetype>Open Access Repository</sourcetype><iscdi>true</iscdi><recordtype>patent</recordtype></control><display><type>patent</type><title>MAGNETIC HEAD</title><source>esp@cenet</source><creator>KONNO SEIKI</creator><creatorcontrib>KONNO SEIKI</creatorcontrib><description>PURPOSE:To eliminate crack by cutting obliquely a sharp angle side of a bent part placed at both ends of a slope of an oxide magnetic core so as to disperse the distortion caused due to the difference from thermal expansion coefficients. CONSTITUTION:Cracks caused in oxide magnetic cores 11, 21 are caused through the concentrated stress near the bent part due to the difference from thermal expansion coefficient of nonmagnetic materials 7, 8 packet to the oxide magnetic cores 11, 21, ferromagnetic metallic films 12, 22 packed at both ends of the magnetic gap (g). The sharp angle side of the bent part located at both ends of slopes 11a, 21a regulating the track width TW and formed to the oxide magnetic cores 11, 21 is cut obliquely to disperse the stress onto the bent part due to the difference from the thermal expansion coefficients without a narrow track width L of the magnetic gap or further thin film of the ferromagnetic thin metallic films 12, 22 and cracks caused in conventional oxide magnetic cores 11, 21 are eliminated effectively.</description><language>eng</language><subject>INFORMATION STORAGE ; INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORDCARRIER AND TRANSDUCER ; PHYSICS</subject><creationdate>1988</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=19880726&DB=EPODOC&CC=JP&NR=S63181105A$$EHTML$$P50$$Gepo$$Hfree_for_read</linktohtml><link.rule.ids>230,308,777,882,25545,76296</link.rule.ids><linktorsrc>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=19880726&DB=EPODOC&CC=JP&NR=S63181105A$$EView_record_in_European_Patent_Office$$FView_record_in_$$GEuropean_Patent_Office$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>KONNO SEIKI</creatorcontrib><title>MAGNETIC HEAD</title><description>PURPOSE:To eliminate crack by cutting obliquely a sharp angle side of a bent part placed at both ends of a slope of an oxide magnetic core so as to disperse the distortion caused due to the difference from thermal expansion coefficients. CONSTITUTION:Cracks caused in oxide magnetic cores 11, 21 are caused through the concentrated stress near the bent part due to the difference from thermal expansion coefficient of nonmagnetic materials 7, 8 packet to the oxide magnetic cores 11, 21, ferromagnetic metallic films 12, 22 packed at both ends of the magnetic gap (g). The sharp angle side of the bent part located at both ends of slopes 11a, 21a regulating the track width TW and formed to the oxide magnetic cores 11, 21 is cut obliquely to disperse the stress onto the bent part due to the difference from the thermal expansion coefficients without a narrow track width L of the magnetic gap or further thin film of the ferromagnetic thin metallic films 12, 22 and cracks caused in conventional oxide magnetic cores 11, 21 are eliminated effectively.</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>1988</creationdate><recordtype>patent</recordtype><sourceid>EVB</sourceid><recordid>eNrjZOD1dXT3cw3xdFbwcHV04WFgTUvMKU7lhdLcDIpuriHOHrqpBfnxqcUFicmpeakl8V4BwWbGhhaGhgamjsbEqAEAoC4cuA</recordid><startdate>19880726</startdate><enddate>19880726</enddate><creator>KONNO SEIKI</creator><scope>EVB</scope></search><sort><creationdate>19880726</creationdate><title>MAGNETIC HEAD</title><author>KONNO SEIKI</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-epo_espacenet_JPS63181105A3</frbrgroupid><rsrctype>patents</rsrctype><prefilter>patents</prefilter><language>eng</language><creationdate>1988</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>KONNO SEIKI</creatorcontrib><collection>esp@cenet</collection></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext_linktorsrc</fulltext></delivery><addata><au>KONNO SEIKI</au><format>patent</format><genre>patent</genre><ristype>GEN</ristype><title>MAGNETIC HEAD</title><date>1988-07-26</date><risdate>1988</risdate><abstract>PURPOSE:To eliminate crack by cutting obliquely a sharp angle side of a bent part placed at both ends of a slope of an oxide magnetic core so as to disperse the distortion caused due to the difference from thermal expansion coefficients. CONSTITUTION:Cracks caused in oxide magnetic cores 11, 21 are caused through the concentrated stress near the bent part due to the difference from thermal expansion coefficient of nonmagnetic materials 7, 8 packet to the oxide magnetic cores 11, 21, ferromagnetic metallic films 12, 22 packed at both ends of the magnetic gap (g). The sharp angle side of the bent part located at both ends of slopes 11a, 21a regulating the track width TW and formed to the oxide magnetic cores 11, 21 is cut obliquely to disperse the stress onto the bent part due to the difference from the thermal expansion coefficients without a narrow track width L of the magnetic gap or further thin film of the ferromagnetic thin metallic films 12, 22 and cracks caused in conventional oxide magnetic cores 11, 21 are eliminated effectively.</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 HEAD |
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