JPH0263255B
PURPOSE:To obtain a medium excellent in S/N, MOL and sensitivity, by containing ferromagnetic metallic powder A having >=37m /g of specific surface area and ferromagnetic metallic powder B having
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| creator | NITSUTA MASAAKI |
| description | PURPOSE:To obtain a medium excellent in S/N, MOL and sensitivity, by containing ferromagnetic metallic powder A having >=37m /g of specific surface area and ferromagnetic metallic powder B having |
| format | Patent |
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CONSTITUTION:It is preferable that the specific surface area of the ferromagnetic metallic powder A is <=45m /g and the specific surface area of the B is >=20m /g. When the specific surface area of the A exceeds 45m /g, the dispersibility is liable to be deteriorated, while the specific surface area of the B is <20m /g, noise is increased much. It is preferable in the ratio of the combination of the A and the B that the rate of the A to the total weight in use is >=10% and <=60%. When the ratio is <10%, the sufficient effect as to the S/N may not be attained, and when the ratio is >60%, it may sacrifice the sensitivity and the MOL regardless of excellent S/N, and then, it is desirable that the ratio is >=20% and <=40%.]]></description><language>eng</language><subject>ADHESIVES ; CHEMICAL PAINT OR INK REMOVERS ; CHEMISTRY ; COATING COMPOSITIONS, e.g. PAINTS, VARNISHES ORLACQUERS ; CORRECTING FLUIDS ; DYES ; FILLING PASTES ; INFORMATION STORAGE ; INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORDCARRIER AND TRANSDUCER ; INKS ; METALLURGY ; MISCELLANEOUS APPLICATIONS OF MATERIALS ; MISCELLANEOUS COMPOSITIONS ; NATURAL RESINS ; PAINTS ; PASTES OR SOLIDS FOR COLOURING OR PRINTING ; PHYSICS ; POLISHES ; USE OF MATERIALS THEREFOR ; WOODSTAINS</subject><creationdate>1990</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=19901227&DB=EPODOC&CC=JP&NR=H0263255B2$$EHTML$$P50$$Gepo$$Hfree_for_read</linktohtml><link.rule.ids>230,308,780,885,25563,76318</link.rule.ids><linktorsrc>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=19901227&DB=EPODOC&CC=JP&NR=H0263255B2$$EView_record_in_European_Patent_Office$$FView_record_in_$$GEuropean_Patent_Office$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>NITSUTA MASAAKI</creatorcontrib><title>JPH0263255B</title><description><![CDATA[PURPOSE:To obtain a medium excellent in S/N, MOL and sensitivity, by containing ferromagnetic metallic powder A having >=37m /g of specific surface area and ferromagnetic metallic powder B having <=32m /g in a magnetic layer. CONSTITUTION:It is preferable that the specific surface area of the ferromagnetic metallic powder A is <=45m /g and the specific surface area of the B is >=20m /g. When the specific surface area of the A exceeds 45m /g, the dispersibility is liable to be deteriorated, while the specific surface area of the B is <20m /g, noise is increased much. It is preferable in the ratio of the combination of the A and the B that the rate of the A to the total weight in use is >=10% and <=60%. When the ratio is <10%, the sufficient effect as to the S/N may not be attained, and when the ratio is >60%, it may sacrifice the sensitivity and the MOL regardless of excellent S/N, and then, it is desirable that the ratio is >=20% and <=40%.]]></description><subject>ADHESIVES</subject><subject>CHEMICAL PAINT OR INK REMOVERS</subject><subject>CHEMISTRY</subject><subject>COATING COMPOSITIONS, e.g. PAINTS, VARNISHES ORLACQUERS</subject><subject>CORRECTING FLUIDS</subject><subject>DYES</subject><subject>FILLING PASTES</subject><subject>INFORMATION STORAGE</subject><subject>INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORDCARRIER AND TRANSDUCER</subject><subject>INKS</subject><subject>METALLURGY</subject><subject>MISCELLANEOUS APPLICATIONS OF MATERIALS</subject><subject>MISCELLANEOUS COMPOSITIONS</subject><subject>NATURAL RESINS</subject><subject>PAINTS</subject><subject>PASTES OR SOLIDS FOR COLOURING OR PRINTING</subject><subject>PHYSICS</subject><subject>POLISHES</subject><subject>USE OF MATERIALS THEREFOR</subject><subject>WOODSTAINS</subject><fulltext>true</fulltext><rsrctype>patent</rsrctype><creationdate>1990</creationdate><recordtype>patent</recordtype><sourceid>EVB</sourceid><recordid>eNrjZOD2CvAwMDIzNjI1deJhYE1LzClO5YXS3AxKbq4hzh66qQX58anFBYnJqXmpJfFIOpyMjIlSBAB5XRw5</recordid><startdate>19901227</startdate><enddate>19901227</enddate><creator>NITSUTA MASAAKI</creator><scope>EVB</scope></search><sort><creationdate>19901227</creationdate><title>JPH0263255B</title><author>NITSUTA MASAAKI</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-epo_espacenet_JPH0263255BB23</frbrgroupid><rsrctype>patents</rsrctype><prefilter>patents</prefilter><language>eng</language><creationdate>1990</creationdate><topic>ADHESIVES</topic><topic>CHEMICAL PAINT OR INK REMOVERS</topic><topic>CHEMISTRY</topic><topic>COATING COMPOSITIONS, e.g. PAINTS, VARNISHES ORLACQUERS</topic><topic>CORRECTING FLUIDS</topic><topic>DYES</topic><topic>FILLING PASTES</topic><topic>INFORMATION STORAGE</topic><topic>INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORDCARRIER AND TRANSDUCER</topic><topic>INKS</topic><topic>METALLURGY</topic><topic>MISCELLANEOUS APPLICATIONS OF MATERIALS</topic><topic>MISCELLANEOUS COMPOSITIONS</topic><topic>NATURAL RESINS</topic><topic>PAINTS</topic><topic>PASTES OR SOLIDS FOR COLOURING OR PRINTING</topic><topic>PHYSICS</topic><topic>POLISHES</topic><topic>USE OF MATERIALS THEREFOR</topic><topic>WOODSTAINS</topic><toplevel>online_resources</toplevel><creatorcontrib>NITSUTA MASAAKI</creatorcontrib><collection>esp@cenet</collection></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext_linktorsrc</fulltext></delivery><addata><au>NITSUTA MASAAKI</au><format>patent</format><genre>patent</genre><ristype>GEN</ristype><title>JPH0263255B</title><date>1990-12-27</date><risdate>1990</risdate><abstract><![CDATA[PURPOSE:To obtain a medium excellent in S/N, MOL and sensitivity, by containing ferromagnetic metallic powder A having >=37m /g of specific surface area and ferromagnetic metallic powder B having <=32m /g in a magnetic layer. CONSTITUTION:It is preferable that the specific surface area of the ferromagnetic metallic powder A is <=45m /g and the specific surface area of the B is >=20m /g. When the specific surface area of the A exceeds 45m /g, the dispersibility is liable to be deteriorated, while the specific surface area of the B is <20m /g, noise is increased much. It is preferable in the ratio of the combination of the A and the B that the rate of the A to the total weight in use is >=10% and <=60%. When the ratio is <10%, the sufficient effect as to the S/N may not be attained, and when the ratio is >60%, it may sacrifice the sensitivity and the MOL regardless of excellent S/N, and then, it is desirable that the ratio is >=20% and <=40%.]]></abstract><oa>free_for_read</oa></addata></record> |
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| language | eng |
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| subjects | ADHESIVES CHEMICAL PAINT OR INK REMOVERS CHEMISTRY COATING COMPOSITIONS, e.g. PAINTS, VARNISHES ORLACQUERS CORRECTING FLUIDS DYES FILLING PASTES INFORMATION STORAGE INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORDCARRIER AND TRANSDUCER INKS METALLURGY MISCELLANEOUS APPLICATIONS OF MATERIALS MISCELLANEOUS COMPOSITIONS NATURAL RESINS PAINTS PASTES OR SOLIDS FOR COLOURING OR PRINTING PHYSICS POLISHES USE OF MATERIALS THEREFOR WOODSTAINS |
| title | JPH0263255B |
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