http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-H11273055-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_5fb9798bf05293ffe6d2e0fde58c3cdb |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G11B5-708 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C01G49-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G11B5-738 |
| filingDate | 1998-03-18-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_778c2b44728f4667efcf8f1b43a43fa5 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_736dd45cbfa666aa3fe4bcd152d494fd http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_599b826abe7b730f1c48b1a637d056da http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_687e8805e5a7bc4d4b0f4416c9a42625 |
| publicationDate | 1999-10-08-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | JP-H11273055-A |
| titleOfInvention | Magnetic recording media |
| abstract | (57) [Problem] To provide a magnetic recording medium having a small light transmittance, a smooth surface, a large strength, and excellent durability. SOLUTION: In a magnetic recording medium comprising a non-magnetic support, a non-magnetic underlayer on the non-magnetic support, and a magnetic recording layer on the non-magnetic underlayer, the non-magnetic particle powder is 0.05 to 0.05% in terms of Zr. A powder composed of acicular hematite particles having an average major axis diameter of not more than 0.3 μm containing 30% by weight of zirconium has a pH value of 8 or more and a soluble sodium salt content of Na 300 ppm or less in conversion, the content of soluble sulfate is SO The acicular hematite particle powder is 150 ppm or less in terms of 4 and the magnetic particle powder is an acicular metallic magnetic particle powder mainly composed of iron in which 0.05 to 10% by weight of aluminum is present in terms of Al. It is a magnetic recording medium. |
| priorityDate | 1998-03-18-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 65.